Merge pull request #6 from GPUCode/citra_merged

Update fmt to 9.1.0

.appveyor.yml

@@ -0,0 +1,32 @@
+# shallow clone
+clone_depth: 5
+
+environment:
+  matrix:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      cmake_generator: "Visual Studio 15 2017 Win64"
+
+platform:
+  - x64
+
+configuration:
+  - Release
+
+install:
+  - git submodule update --init --recursive
+  - cd externals
+  - git clone https://github.com/MerryMage/ext-boost boost
+  - cd ..
+
+before_build:
+  - mkdir build
+  - cd build
+  - cmake .. -G "%cmake_generator%" -DBoost_INCLUDE_DIRS=%cd%/../externals/boost
+  - cd ..
+
+build:
+  project: build/dynarmic.sln
+  parallel: true
+
+test_script:
+  - cd build && ctest -VV -C Release && cd ..

.clang-format

@@ -1,218 +0,0 @@
----
-Language:        Cpp
-AccessModifierOffset: -4
-AlignAfterOpenBracket: Align
-AlignConsecutiveMacros: None
-AlignConsecutiveAssignments: None
-AlignConsecutiveBitFields: None
-AlignConsecutiveDeclarations: None
-AlignConsecutiveMacros: None
-AlignEscapedNewlines: Right
-AlignOperands:   AlignAfterOperator
-AlignTrailingComments: true
-AllowAllArgumentsOnNextLine: true
-AllowAllConstructorInitializersOnNextLine: true
-AllowAllParametersOfDeclarationOnNextLine: true
-AllowShortEnumsOnASingleLine: true
-AllowShortBlocksOnASingleLine: Empty
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: Inline
-AllowShortLambdasOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: Never
-AllowShortLoopsOnASingleLine: false
-AlwaysBreakAfterDefinitionReturnType: None
-AlwaysBreakAfterReturnType: None
-AlwaysBreakBeforeMultilineStrings: true
-AlwaysBreakTemplateDeclarations: Yes
-AttributeMacros:
-  - __capability
-BinPackArguments: true
-BinPackParameters: false
-BitFieldColonSpacing: Both
-BraceWrapping:
-  AfterCaseLabel:  false
-  AfterClass:      false
-  AfterControlStatement: Never
-  AfterEnum:       false
-  AfterFunction:   false
-  AfterNamespace:  false
-  AfterObjCDeclaration: false
-  AfterStruct:     false
-  AfterUnion:      false
-  AfterExternBlock: false
-  BeforeCatch:     false
-  BeforeElse:      false
-  BeforeLambdaBody: false
-  BeforeWhile:     false
-  IndentBraces:    false
-  SplitEmptyFunction: false
-  SplitEmptyRecord: false
-  SplitEmptyNamespace: false
-BreakBeforeBinaryOperators: All
-BreakBeforeBraces: Custom
-BreakBeforeConceptDeclarations: true
-BreakBeforeTernaryOperators: true
-BreakBeforeInheritanceComma: false
-BreakConstructorInitializersBeforeComma: true
-BreakConstructorInitializers: BeforeComma
-BreakInheritanceList: BeforeComma
-BreakAfterJavaFieldAnnotations: false
-BreakStringLiterals: true
-ColumnLimit:     0
-CommentPragmas:  '^ IWYU pragma:'
-CompactNamespaces: false
-ConstructorInitializerAllOnOneLineOrOnePerLine: true
-ConstructorInitializerIndentWidth: 8
-ContinuationIndentWidth: 4
-Cpp11BracedListStyle: true
-DeriveLineEnding: true
-DerivePointerAlignment: false
-DisableFormat:   false
-# EmptyLineAfterAccessModifier: Leave
-EmptyLineBeforeAccessModifier: Always
-ExperimentalAutoDetectBinPacking: false
-FixNamespaceComments: true
-ForEachMacros:
-  - foreach
-  - Q_FOREACH
-  - BOOST_FOREACH
-IncludeBlocks:   Regroup
-IncludeCategories:
-  - Regex:           '^<mach/'
-    Priority:        1
-    SortPriority:    0
-    CaseSensitive:   false
-  - Regex:           '^<windows.h>'
-    Priority:        1
-    SortPriority:    0
-    CaseSensitive:   false
-  - Regex:           '(^<signal.h>)|(^<sys/ucontext.h>)|(^<ucontext.h>)'
-    Priority:        1
-    SortPriority:    0
-    CaseSensitive:   false
-  - Regex:           '^<([^\.])*>$'
-    Priority:        2
-    SortPriority:    0
-    CaseSensitive:   false
-  - Regex:           '^<.*\.'
-    Priority:        3
-    SortPriority:    0
-    CaseSensitive:   false
-  - Regex:           '.*'
-    Priority:        4
-    SortPriority:    0
-    CaseSensitive:   false
-IncludeIsMainRegex: '([-_](test|unittest))?$'
-IncludeIsMainSourceRegex: ''
-# IndentAccessModifiers: false
-IndentCaseBlocks: false
-IndentCaseLabels: false
-IndentExternBlock: NoIndent
-IndentGotoLabels: false
-IndentPPDirectives: AfterHash
-IndentRequires:  false
-IndentWidth:     4
-IndentWrappedFunctionNames: false
-# InsertTrailingCommas: None
-JavaScriptQuotes: Leave
-JavaScriptWrapImports: true
-KeepEmptyLinesAtTheStartOfBlocks: false
-MacroBlockBegin: ''
-MacroBlockEnd:   ''
-MaxEmptyLinesToKeep: 1
-NamespaceIndentation: None
-NamespaceMacros:
-ObjCBinPackProtocolList: Never
-ObjCBlockIndentWidth: 2
-ObjCBreakBeforeNestedBlockParam: true
-ObjCSpaceAfterProperty: false
-ObjCSpaceBeforeProtocolList: true
-PenaltyBreakAssignment: 2
-PenaltyBreakBeforeFirstCallParameter: 1
-PenaltyBreakComment: 300
-PenaltyBreakFirstLessLess: 120
-PenaltyBreakString: 1000
-PenaltyBreakTemplateDeclaration: 10
-PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 200
-PenaltyIndentedWhitespace: 0
-PointerAlignment: Left
-RawStringFormats:
-  - Language:        Cpp
-    Delimiters:
-      - cc
-      - CC
-      - cpp
-      - Cpp
-      - CPP
-      - 'c++'
-      - 'C++'
-    CanonicalDelimiter: ''
-    BasedOnStyle:    google
-  - Language:        TextProto
-    Delimiters:
-      - pb
-      - PB
-      - proto
-      - PROTO
-    EnclosingFunctions:
-      - EqualsProto
-      - EquivToProto
-      - PARSE_PARTIAL_TEXT_PROTO
-      - PARSE_TEST_PROTO
-      - PARSE_TEXT_PROTO
-      - ParseTextOrDie
-      - ParseTextProtoOrDie
-      - ParseTestProto
-      - ParsePartialTestProto
-    CanonicalDelimiter: ''
-    BasedOnStyle:    google
-ReflowComments:  true
-# ShortNamespaceLines: 5
-SortIncludes:    true
-SortJavaStaticImport: Before
-SortUsingDeclarations: true
-SpaceAfterCStyleCast: false
-SpaceAfterLogicalNot: false
-SpaceAfterTemplateKeyword: false
-SpaceAroundPointerQualifiers: Default
-SpaceBeforeAssignmentOperators: true
-SpaceBeforeCaseColon: false
-SpaceBeforeCpp11BracedList: false
-SpaceBeforeCtorInitializerColon: true
-SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: ControlStatements
-SpaceAroundPointerQualifiers: Default
-SpaceBeforeRangeBasedForLoopColon: true
-SpaceBeforeSquareBrackets: false
-SpaceInEmptyBlock: false
-SpaceInEmptyParentheses: false
-SpacesBeforeTrailingComments: 2
-SpacesInAngles:  false
-SpacesInConditionalStatement: false
-SpacesInCStyleCastParentheses: false
-SpacesInConditionalStatement: false
-SpacesInContainerLiterals: false
-# SpacesInLineCommentPrefix: -1
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-Standard:        Latest
-StatementAttributeLikeMacros:
-  - Q_EMIT
-StatementMacros:
-  - Q_UNUSED
-  - QT_REQUIRE_VERSION
-TabWidth:        4
-TypenameMacros:
-UseCRLF:         false
-UseTab:          Never
-WhitespaceSensitiveMacros:
-  - STRINGIZE
-  - PP_STRINGIZE
-  - BOOST_PP_STRINGIZE
-  - NS_SWIFT_NAME
-  - CF_SWIFT_NAME
-  - FCODE
-  - ICODE
-...
-

.github/workflows/aarch64.yml

@@ -1,84 +0,0 @@
-name: AArch64
-
-on: [ push, pull_request ]
-
-env:
-  BUILD_TYPE: Release
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ ubuntu-latest ]
-      fail-fast: false
-
-    runs-on: ${{matrix.os}}
-
-    steps:
-
-      - name: Install build dependencies
-        if: ${{matrix.os == 'ubuntu-latest'}}
-        run: >
-          sudo apt-get install
-          gcc-10-aarch64-linux-gnu
-          g++-10-aarch64-linux-gnu
-          ninja-build
-          qemu-user
-
-      - name: Checkout dynarmic repo
-        uses: actions/checkout@v2
-
-      - name: Ccache
-        uses: hendrikmuhs/ccache-action@v1.2
-
-      - name: Checkout ext-boost repo
-        uses: actions/checkout@v2
-        with:
-          repository: MerryMage/ext-boost
-          path: externals/ext-boost
-
-      - name: Configure CMake for AArch64
-        env:
-          CC: aarch64-linux-gnu-gcc-10
-          CXX: aarch64-linux-gnu-g++-10
-        run: >
-          cmake
-          -B ${{github.workspace}}/build-arm64
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_TESTS_USE_UNICORN=0
-          -DDYNARMIC_USE_LLVM=0
-          -DDYNARMIC_FRONTENDS=A32
-          -G Ninja
-
-      - name: Build AArch64
-        working-directory: ${{github.workspace}}/build-arm64
-        run: cmake --build . --config Release
-
-      - name: Configure CMake for x86_64
-        env:
-          CC: gcc-10
-          CXX: g++-10
-        run: >
-          cmake
-          -B ${{github.workspace}}/build-x64
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DCMAKE_C_COMPILER_LAUNCHER=ccache
-          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
-          -DDYNARMIC_FRONTENDS=A32
-          -DDYNARMIC_TESTS_USE_UNICORN=0
-          -DDYNARMIC_USE_LLVM=0
-          -G Ninja
-
-      - name: Build x86_64
-        working-directory: ${{github.workspace}}/build-x64
-        run: cmake --build . --config Release
-
-      - name: Basic tests
-        working-directory: ${{github.workspace}}
-        run: qemu-aarch64 -L /usr/aarch64-linux-gnu ./build-arm64/tests/dynarmic_tests -d yes
-
-      - name: Test against x86_64 implementation
-        working-directory: ${{github.workspace}}
-        run: diff <(qemu-aarch64 -L /usr/aarch64-linux-gnu ./build-arm64/tests/dynarmic_test_generator) <(./build-x64/tests/dynarmic_test_generator)

.github/workflows/ci.yml

@@ -0,0 +1,90 @@
+name: dynarmic-ci
+
+on:
+  push:
+    branches: [ "*" ]
+    tags: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  linux-x86_64-gcc:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        gcc-ver: [7, 8]
+    env: 
+      GCC_VERSION: ${{ matrix.gcc-ver }}
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-x86_64-linux/deps.sh
+      - name: Build
+        run: ./.travis/build-x86_64-linux/build.sh
+  linux-aarch64-gcc-8:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps apt-get
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+            gcc-8-aarch64-linux-gnu \
+            g++-8-aarch64-linux-gnu \
+            ninja-build \
+            qemu-user
+      - name: Deps
+        run: ./.travis/build-aarch64-linux/deps.sh
+      - name: Build
+        run: ./.travis/build-aarch64-linux/build.sh
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        image: ["sse3-only-on-x86_64-linux", "test-with-unicorn-on-x86_64-linux"]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps apt-get
+        run: |
+          sudo apt-get install \
+            gcc-7 \
+            g++-7 \
+            llvm-dev \
+            ninja-build
+      - name: Deps
+        run: ./.travis/${{ matrix.image }}/deps.sh
+      - name: Build
+        run: ./.travis/${{ matrix.image }}/build.sh
+  macos:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        arch: ["x86_64", "aarch64"]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-${{ matrix.arch }}-macos/deps.sh
+      - name: Build
+        run: ./.travis/build-${{ matrix.arch }}-macos/build.sh
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Deps
+        run: ./.travis/build-x86_64-windows/deps.sh
+        shell: bash
+      - name: Set up MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+      - name: Build
+        run: ./.travis/build-x86_64-windows/build.sh
+        shell: bash

.github/workflows/clang-format.yml

@@ -1,18 +0,0 @@
-name: clang-format
-
-on: [push, pull_request]
-
-jobs:
-  clang-format:
-
-    runs-on: ubuntu-latest
-
-    steps:
-
-    - name: Checkout dynarmic repo
-      uses: actions/checkout@v2
-
-    - uses: DoozyX/clang-format-lint-action@v0.12
-      with:
-        source: 'src tests'
-        clangFormatVersion: 12

.github/workflows/x86-64.yml

@@ -1,146 +0,0 @@
-name: x86-64
-
-on: [ push, pull_request ]
-
-env:
-  BUILD_TYPE: Release
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ windows-latest, ubuntu-latest, macos-latest ]
-        cpu_detection: [ 0, 1 ]
-        arch: [ x64, arm64]
-        exclude:
-          - cpu_detection: 1
-            arch: arm64
-      fail-fast: false
-
-    runs-on: ${{matrix.os}}
-
-    steps:
-
-      - name: Install build dependencies
-        if: ${{matrix.os == 'ubuntu-latest'}}
-        run: sudo apt-get install llvm ninja-build
-
-      - name: Install cross-compile dependencies
-        if: ${{matrix.os == 'ubuntu-latest' && matrix.arch == 'arm64' }}
-        run: sudo apt-get install gcc-10-aarch64-linux-gnu g++-10-aarch64-linux-gnu qemu-user
-
-      - name: Install build dependencies
-        if: ${{matrix.os == 'macos-latest'}}
-        run: |
-          brew install llvm ninja
-          echo "/usr/local/opt/llvm/bin" >> $GITHUB_PATH
-
-      - name: Checkout dynarmic repo
-        uses: actions/checkout@v2
-
-      - name: Checkout ext-boost repo
-        uses: actions/checkout@v2
-        with:
-          repository: MerryMage/ext-boost
-          path: externals/ext-boost
-
-      - name: Checkout unicorn repo
-        if: ${{matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'}}
-        uses: actions/checkout@v2
-        with:
-          repository: MerryMage/unicorn
-          path: externals/unicorn
-
-      - name: Build unicorn
-        if: ${{matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'}}
-        working-directory: externals/unicorn
-        run: UNICORN_ARCHS=aarch64,arm ./make.sh
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'ubuntu-latest' && matrix.arch != 'arm64'}}
-        env:
-          CC: gcc-10
-          CXX: g++-10
-          CXXFLAGS: -Wp,-D_GLIBCXX_ASSERTIONS
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_ENABLE_CPU_FEATURE_DETECTION=${{matrix.cpu_detection}}
-          -DDYNARMIC_TESTS_USE_UNICORN=1
-          -DDYNARMIC_USE_LLVM=1
-          -DLIBUNICORN_INCLUDE_DIR=${{github.workspace}}/externals/unicorn/include
-          -DLIBUNICORN_LIBRARY=${{github.workspace}}/externals/unicorn/libunicorn.a
-          -G Ninja
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'ubuntu-latest' && matrix.arch == 'arm64'}}
-        env:
-          CC: aarch64-linux-gnu-gcc-10
-          CXX: aarch64-linux-gnu-g++-10
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_FRONTENDS="A32"
-          -G Ninja
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'macos-latest' && matrix.arch == 'x64'}}
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_ENABLE_CPU_FEATURE_DETECTION=${{matrix.cpu_detection}}
-          -DDYNARMIC_TESTS_USE_UNICORN=1
-          -DDYNARMIC_USE_LLVM=1
-          -DLIBUNICORN_INCLUDE_DIR=${{github.workspace}}/externals/unicorn/include
-          -DLIBUNICORN_LIBRARY=${{github.workspace}}/externals/unicorn/libunicorn.a
-          -G Ninja
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'macos-latest' && matrix.arch == 'arm64'}}
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_FRONTENDS="A32"
-          -DCMAKE_OSX_ARCHITECTURES=arm64
-          -G Ninja
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'windows-latest' && matrix.arch == 'x64'}}
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_ENABLE_CPU_FEATURE_DETECTION=${{matrix.cpu_detection}}
-          -G "Visual Studio 17 2022"
-          -A x64
-
-      - name: Configure CMake
-        if: ${{matrix.os == 'windows-latest' && matrix.arch == 'arm64'}}
-        run: >
-          cmake
-          -B ${{github.workspace}}/build
-          -DBoost_INCLUDE_DIRS=${{github.workspace}}/externals/ext-boost
-          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DDYNARMIC_FRONTENDS="A32"
-          -G "Visual Studio 17 2022"
-          -A arm64
-
-      - name: Build
-        working-directory: ${{github.workspace}}/build
-        run: cmake --build . --config Release
-
-      - name: Test
-        if: ${{matrix.arch == 'x64'}}
-        env:
-          DYLD_FALLBACK_LIBRARY_PATH: ${{github.workspace}}/externals/unicorn
-        working-directory: ${{github.workspace}}/build
-        run: ctest --extra-verbose -C ${{env.BUILD_TYPE}}

.gitignore

@@ -1,10 +1,6 @@
 # Built files
 build/
-build-*/
-cmake-build-*/
-.idea/
 docs/Doxygen/
+.vs/
 # Generated files
-src/dynarmic/backend/x64/mig/
-# System files
-.DS_Store
+src/backend/x64/mig/

.travis.yml

@@ -0,0 +1,80 @@
+language: cpp
+
+cache: ccache
+
+matrix:
+  include:
+    - env: NAME="Linux Build" GCC_VERSION=7
+      os: linux
+      dist: trusty
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-7
+            - g++-7
+            - ninja-build
+      install: ./.travis/build-x86_64-linux/deps.sh
+      script: ./.travis/build-x86_64-linux/build.sh
+    - env: NAME="Linux Build" GCC_VERSION=8
+      os: linux
+      dist: trusty
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-8
+            - g++-8
+            - ninja-build
+      install: ./.travis/build-x86_64-linux/deps.sh
+      script: ./.travis/build-x86_64-linux/build.sh
+    - env: NAME="Linux aarch64 Build"
+      os: linux
+      dist: bionic
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+          - gcc-8-aarch64-linux-gnu
+          - g++-8-aarch64-linux-gnu
+          - ninja-build
+          - qemu-user
+      install: ./.travis/build-aarch64-linux/deps.sh
+      script: ./.travis/build-aarch64-linux/build.sh
+    - env: NAME="macOS Build"
+      os: osx
+      sudo: false
+      osx_image: xcode10.2
+      install: ./.travis/build-x86_64-macos/deps.sh
+      script: ./.travis/build-x86_64-macos/build.sh
+    - env: NAME="Test - Fuzz against Unicorn"
+      os: linux
+      dist: bionic
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-7
+            - g++-7
+            - llvm-dev
+            - ninja-build
+      install: ./.travis/test-with-unicorn-on-x86_64-linux/deps.sh
+      script: ./.travis/test-with-unicorn-on-x86_64-linux/build.sh
+    - env: NAME="Test - SSE3 only"
+      os: linux
+      dist: bionic
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-7
+            - g++-7
+            - llvm-dev
+            - ninja-build
+      install: ./.travis/sse3-only-on-x86_64-linux/deps.sh
+      script: ./.travis/sse3-only-on-x86_64-linux/build.sh

.travis/build-aarch64-linux/build.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -e
+set -x
+
+export CC=aarch64-linux-gnu-gcc-8
+export CXX=aarch64-linux-gnu-g++-8
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -G Ninja
+ninja
+
+qemu-aarch64 -L /usr/aarch64-linux-gnu ./tests/dynarmic_tests -d yes

.travis/build-aarch64-linux/deps.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..

.travis/build-aarch64-macos/build.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+set -x
+set -o pipefail
+
+export MACOSX_DEPLOYMENT_TARGET=11.0
+
+mkdir build && cd build
+cmake .. -GXcode -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DDYNARMIC_TESTS=0 -DCMAKE_OSX_ARCHITECTURES=arm64
+xcodebuild -configuration Release

.travis/build-aarch64-macos/deps.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..

.travis/build-x86_64-linux/build.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+set -x
+
+export CC=gcc-${GCC_VERSION}
+export CXX=g++-${GCC_VERSION}
+export PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig:$PKG_CONFIG_PATH
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -G Ninja
+ninja
+
+./tests/dynarmic_tests --durations yes

.travis/build-x86_64-linux/deps.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+set -x
+
+sudo apt-get update
+sudo apt-get install \
+	gcc-${GCC_VERSION} \
+	g++-${GCC_VERSION} \
+	ninja-build
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..
+
+mkdir -p $HOME/.local
+curl -L https://cmake.org/files/v3.8/cmake-3.8.0-Linux-x86_64.tar.gz \
+    | tar -xz -C $HOME/.local --strip-components=1

.travis/build-x86_64-macos/build.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+set -x
+set -o pipefail
+
+export MACOSX_DEPLOYMENT_TARGET=10.12
+
+mkdir build && cd build
+cmake .. -GXcode -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DDYNARMIC_TESTS=0
+xcodebuild -configuration Release

.travis/build-x86_64-macos/deps.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..

.travis/build-x86_64-windows/build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+set -x
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -G Ninja
+ninja
+
+./tests/dynarmic_tests --durations yes

.travis/build-x86_64-windows/deps.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+cd ..

.travis/sse3-only-on-x86_64-linux/build.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -e
+set -x
+
+export CC=gcc-7
+export CXX=g++-7
+export PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig:$PKG_CONFIG_PATH
+export UNICORNDIR=$(pwd)/externals/unicorn
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -DDYNARMIC_USE_LLVM=1 -DDYNARMIC_TESTS_USE_UNICORN=1 -DDYNARMIC_ENABLE_CPU_FEATURE_DETECTION=0 -G Ninja
+ninja
+
+./tests/dynarmic_tests --durations yes

.travis/sse3-only-on-x86_64-linux/deps.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -e
+set -x
+
+python3 --version
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+git clone https://github.com/MerryMage/unicorn
+cd unicorn
+UNICORN_ARCHS=aarch64,arm ./make.sh
+cd ../..
+
+mkdir -p $HOME/.local
+curl -L https://cmake.org/files/v3.8/cmake-3.8.0-Linux-x86_64.tar.gz \
+    | tar -xz -C $HOME/.local --strip-components=1

.travis/test-with-unicorn-on-x86_64-linux/build.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -e
+set -x
+
+export CC=gcc-7
+export CXX=g++-7
+export PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig:$PKG_CONFIG_PATH
+export UNICORNDIR=$(pwd)/externals/unicorn
+
+mkdir build && cd build
+cmake .. -DBoost_INCLUDE_DIRS=${PWD}/../externals/ext-boost -DCMAKE_BUILD_TYPE=Release -DDYNARMIC_USE_LLVM=1 -DDYNARMIC_TESTS_USE_UNICORN=1 -G Ninja
+ninja
+
+./tests/dynarmic_tests --durations yes

.travis/test-with-unicorn-on-x86_64-linux/deps.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -e
+set -x
+
+python3 --version
+
+# TODO: This isn't ideal.
+cd externals
+git clone https://github.com/MerryMage/ext-boost
+git clone https://github.com/MerryMage/unicorn
+cd unicorn
+UNICORN_ARCHS="arm aarch64" ./make.sh
+cd ../..
+
+mkdir -p $HOME/.local
+curl -L https://cmake.org/files/v3.8/cmake-3.8.0-Linux-x86_64.tar.gz \
+    | tar -xz -C $HOME/.local --strip-components=1

CMakeLists.txt

@@ -1,5 +1,5 @@
-cmake_minimum_required(VERSION 3.12)
-project(dynarmic LANGUAGES C CXX ASM VERSION 6.3.0)
+cmake_minimum_required(VERSION 3.8)
+project(dynarmic C CXX)
 
 # Determine if we're built as a subproject (using add_subdirectory)
 # or if this is the master project.
@@ -11,16 +11,27 @@ endif()
 # Add the module directory to the list of paths
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMakeModules")
 
+if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 12)
+    string(APPEND CMAKE_CXX_FLAGS " -fbracket-depth=1024")
+endif()
+
 # Arch detection
 include(DetectArchitecture)
-if (NOT DEFINED ARCHITECTURE)
+if (MSVC)
+    detect_architecture("_M_AMD64" x86_64)
+    detect_architecture("_M_ARM64" Aarch64)
+else()
+    detect_architecture("__x86_64__" x86_64)
+    detect_architecture("__aarch64__" Aarch64)
+endif()
+if (NOT DEFINED DYNARMIC_ARCHITECTURE)
     message(FATAL_ERROR "Unsupported architecture encountered. Ending CMake generation.")
 endif()
-message(STATUS "Target architecture: ${ARCHITECTURE}")
+message(STATUS "Target architecture: ${DYNARMIC_ARCHITECTURE}")
 
 set(REQUIRES_NO_EXECUTE_SUPPORT OFF)
-# Apple Silicon chips require W^X
-if(APPLE AND ARCHITECTURE STREQUAL "arm64")
+#Apple Silicon chips require W^X
+if(APPLE AND ARCHITECTURE_Aarch64)
     set(REQUIRES_NO_EXECUTE_SUPPORT ON)
 endif()
 
@@ -28,7 +39,6 @@ endif()
 option(DYNARMIC_ENABLE_CPU_FEATURE_DETECTION "Turning this off causes dynarmic to assume the host CPU doesn't support anything later than SSE3" ON)
 option(DYNARMIC_ENABLE_NO_EXECUTE_SUPPORT "Enables support for systems that require W^X" ${REQUIRES_NO_EXECUTE_SUPPORT})
 option(DYNARMIC_FATAL_ERRORS "Errors are fatal" OFF)
-option(DYNARMIC_IGNORE_ASSERTS "Ignore asserts" OFF)
 option(DYNARMIC_TESTS "Build tests" ${MASTER_PROJECT})
 option(DYNARMIC_TESTS_USE_UNICORN "Enable fuzzing tests against unicorn" OFF)
 option(DYNARMIC_USE_LLVM "Support disassembly of jitted x86_64 code using LLVM" OFF)
@@ -44,7 +54,7 @@ if (NOT CMAKE_BUILD_TYPE)
 endif()
 
 # Set hard requirements for C++
-set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
@@ -58,6 +68,7 @@ endif()
 # Compiler flags
 if (MSVC)
     set(DYNARMIC_CXX_FLAGS
+        /std:c++latest # CMAKE_CXX_STANDARD has no effect on MSVC until CMake 3.10.
         /experimental:external
         /external:W0
         /external:anglebrackets
@@ -110,12 +121,6 @@ else()
         list(APPEND DYNARMIC_CXX_FLAGS
              -Wfatal-errors)
     endif()
-
-    if (CMAKE_CXX_COMPILER_ID MATCHES "[Cc]lang")
-        # Bracket depth determines maximum size of a fold expression in Clang since 9c9974c3ccb6.
-        # And this in turns limits the size of a std::array.
-        list(APPEND DYNARMIC_CXX_FLAGS -fbracket-depth=1024)
-    endif()
 endif()
 
 # Include Boost
@@ -127,27 +132,6 @@ if (NOT TARGET boost)
     target_include_directories(boost SYSTEM INTERFACE ${Boost_INCLUDE_DIRS})
 endif()
 
-if (DYNARMIC_NO_BUNDLED_FMT AND NOT TARGET fmt AND NOT TARGET fmt::fmt)
-    find_package(fmt REQUIRED)
-    add_library(fmt ALIAS fmt::fmt)
-endif()
-
-if (DYNARMIC_NO_BUNDLED_ROBIN_MAP AND NOT TARGET tsl::robin_map)
-    find_package(tsl-robin-map REQUIRED)
-endif()
-
-if (DYNARMIC_NO_BUNDLED_XBYAK AND NOT TARGET xbyak)
-    if (ARCHITECTURE STREQUAL "x86" OR ARCHITECTURE STREQUAL "x86_64")
-        find_package(xbyak REQUIRED)
-        add_library(xbyak ALIAS xbyak::xbyak)
-    endif()
-endif()
-
-if (DYNARMIC_NO_BUNDLED_ZYDIS AND NOT TARGET Zydis)
-    find_package(Zydis REQUIRED)
-    add_library(Zydis ALIAS Zydis::Zydis)
-endif()
-
 # Enable unit-testing.
 enable_testing(true)
 
@@ -159,49 +143,15 @@ if (DYNARMIC_USE_LLVM)
     llvm_map_components_to_libnames(llvm_libs armdesc armdisassembler aarch64desc aarch64disassembler x86desc x86disassembler)
 endif()
 
-if (DYNARMIC_TESTS_USE_UNICORN AND DYNARMIC_TESTS)
+if (DYNARMIC_TESTS_USE_UNICORN)
     find_package(Unicorn REQUIRED)
 endif()
 
-if (DYNARMIC_TESTS AND DYNARMIC_NO_BUNDLED_CATCH AND NOT TARGET catch)
-    find_package(Catch2 REQUIRED)
-    add_library(catch ALIAS Catch2::Catch2)
-endif()
-
 # Pull in externals CMakeLists for libs where available
 add_subdirectory(externals)
 
 # Dynarmic project files
-add_subdirectory(src/dynarmic)
+add_subdirectory(src)
 if (DYNARMIC_TESTS)
     add_subdirectory(tests)
 endif()
-
-#
-# Install
-#
-if (MASTER_PROJECT)
-    include(GNUInstallDirs)
-    include(CMakePackageConfigHelpers)
-
-    install(TARGETS dynarmic EXPORT dynarmicTargets)
-    install(EXPORT dynarmicTargets
-        NAMESPACE dynarmic::
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/dynarmic"
-    )
-
-    configure_package_config_file(CMakeModules/dynarmicConfig.cmake.in
-        dynarmicConfig.cmake
-        INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/dynarmic"
-    )
-    write_basic_package_version_file(dynarmicConfigVersion.cmake
-        COMPATIBILITY SameMajorVersion
-    )
-    install(FILES
-        "${CMAKE_CURRENT_BINARY_DIR}/dynarmicConfig.cmake"
-        "${CMAKE_CURRENT_BINARY_DIR}/dynarmicConfigVersion.cmake"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/dynarmic"
-    )
-
-    install(DIRECTORY src/dynarmic TYPE INCLUDE FILES_MATCHING PATTERN "*.h")
-endif()

CMakeModules/DetectArchitecture.cmake

@@ -1,56 +1,16 @@
 include(CheckSymbolExists)
-
 function(detect_architecture symbol arch)
-    if (NOT DEFINED ARCHITECTURE)
-        set(CMAKE_REQUIRED_QUIET YES)
-        check_symbol_exists("${symbol}" "" DETECT_ARCHITECTURE_${arch})
+    if (NOT DEFINED DYNARMIC_ARCHITECTURE)
+        set(CMAKE_REQUIRED_QUIET 1)
+        check_symbol_exists("${symbol}" "" ARCHITECTURE_${arch})
         unset(CMAKE_REQUIRED_QUIET)
 
-        if (DETECT_ARCHITECTURE_${arch})
-            set(ARCHITECTURE "${arch}" PARENT_SCOPE)
+        # The output variable needs to be unique across invocations otherwise
+        # CMake's crazy scope rules will keep it defined
+        if (ARCHITECTURE_${arch})
+            set(DYNARMIC_ARCHITECTURE "${arch}" PARENT_SCOPE)
+            set(ARCHITECTURE_${arch} 1 PARENT_SCOPE)
+            add_definitions(-DARCHITECTURE_${arch}=1)
         endif()
-
-        unset(DETECT_ARCHITECTURE_${arch} CACHE)
     endif()
 endfunction()
-
-detect_architecture("__ARM64__" arm64)
-detect_architecture("__aarch64__" arm64)
-detect_architecture("_M_ARM64" arm64)
-
-detect_architecture("__arm__" arm)
-detect_architecture("__TARGET_ARCH_ARM" arm)
-detect_architecture("_M_ARM" arm)
-
-detect_architecture("__x86_64" x86_64)
-detect_architecture("__x86_64__" x86_64)
-detect_architecture("__amd64" x86_64)
-detect_architecture("_M_X64" x86_64)
-
-detect_architecture("__i386" x86)
-detect_architecture("__i386__" x86)
-detect_architecture("_M_IX86" x86)
-
-detect_architecture("__ia64" ia64)
-detect_architecture("__ia64__" ia64)
-detect_architecture("_M_IA64" ia64)
-
-detect_architecture("__mips" mips)
-detect_architecture("__mips__" mips)
-detect_architecture("_M_MRX000" mips)
-
-detect_architecture("__ppc64__" ppc64)
-detect_architecture("__powerpc64__" ppc64)
-
-detect_architecture("__ppc__" ppc)
-detect_architecture("__ppc" ppc)
-detect_architecture("__powerpc__" ppc)
-detect_architecture("_ARCH_COM" ppc)
-detect_architecture("_ARCH_PWR" ppc)
-detect_architecture("_ARCH_PPC" ppc)
-detect_architecture("_M_MPPC" ppc)
-detect_architecture("_M_PPC" ppc)
-
-detect_architecture("__riscv" riscv)
-
-detect_architecture("__EMSCRIPTEN__" wasm)

CMakeModules/FindUnicorn.cmake

@@ -19,7 +19,7 @@ find_library(LIBUNICORN_LIBRARY
              HINTS $ENV{UNICORNDIR})
 
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Unicorn DEFAULT_MSG LIBUNICORN_LIBRARY LIBUNICORN_INCLUDE_DIR)
+find_package_handle_standard_args(unicorn DEFAULT_MSG LIBUNICORN_LIBRARY LIBUNICORN_INCLUDE_DIR)
 
 if (UNICORN_FOUND)
     set(THREADS_PREFER_PTHREAD_FLAG ON)

CMakeModules/dynarmicConfig.cmake.in

@@ -1,5 +0,0 @@
-@PACKAGE_INIT@
-
-include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
-
-check_required_components(@PROJECT_NAME@)

README.md

@@ -1,14 +1,13 @@
 Dynarmic
 ========
 
-[![Github Actions Build Status](https://github.com/MerryMage/dynarmic/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/MerryMage/dynarmic/actions/workflows/build-and-test.yml)
+[![Travis CI Build Status](https://api.travis-ci.org/MerryMage/dynarmic.svg?branch=master)](https://travis-ci.org/MerryMage/dynarmic/branches) [![Appveyor CI Build status](https://ci.appveyor.com/api/projects/status/maeiqr41rgm1innm/branch/master?svg=true)](https://ci.appveyor.com/project/MerryMage/dynarmic/branch/master)
 
 A dynamic recompiler for ARM.
 
 ### Supported guest architectures
 
-* ARMv6K, ARMv7A
-* 32-bit ARMv8
+* ARMv6K
 * 64-bit ARMv8
 
 ### Supported host architectures
@@ -17,15 +16,6 @@ A dynamic recompiler for ARM.
 
 There are no plans to support x86-32.
 
-Projects using Dynarmic
------------------------
-
-* [Citra - Nintendo 3DS emulator](https://citra-emu.org)
-* [yuzu - Nintendo Switch emulator](https://yuzu-emu.org)
-* [EKA2L1 - An Experimental Symbian OS emulator](https://github.com/EKA2L1/EKA2L1)
-* [Vita3K - An Experimental PSVita emulator](https://vita3k.org)
-* [unidbg - Android native library emulation, with experimental iOS emulation](https://github.com/zhkl0228/unidbg)
-
 Alternatives to Dynarmic
 ------------------------
 
@@ -44,7 +34,7 @@ More general alternatives:
 * [VisUAL](https://salmanarif.bitbucket.io/visual/index.html) - Visual ARM UAL emulator intended for education
 * A wide variety of other recompilers, interpreters and emulators can be found embedded in other projects, here are some we would recommend looking at:
   * [firebird's recompiler](https://github.com/nspire-emus/firebird) - Takes more of a call-threaded approach to recompilation
-  * [higan's arm7tdmi emulator](https://github.com/higan-emu/higan/tree/master/higan/component/processor/arm7tdmi) - Very clean code-style
+  * [higan's arm7tdmi emulator](https://gitlab.com/higan/higan/tree/master/higan/component/processor/arm7tdmi) - Very clean code-style
   * [arm-js by ozaki-r](https://github.com/ozaki-r/arm-js) - Emulates ARMv7A and some peripherals of Versatile Express, in the browser
 
 Disadvantages of Dynarmic
@@ -94,8 +84,8 @@ The below is a minimal example. Bring-your-own memory system.
 #include <cstdio>
 #include <exception>
 
-#include "dynarmic/interface/A32/a32.h"
-#include "dynarmic/interface/A32/config.h"
+#include <dynarmic/A32/a32.h>
+#include <dynarmic/A32/config.h>
 
 using u8 = std::uint8_t;
 using u16 = std::uint16_t;
@@ -209,7 +199,7 @@ Legal
 
 dynarmic is under a 0BSD license. See LICENSE.txt for more details.
 
-dynarmic uses several other libraries, whose licenses are included below:
+dynarmic uses several other libraries, whose licenes are included below:
 
 ### catch
 
@@ -267,30 +257,21 @@ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ```
 
-### mcl & oaknut
+### mp
 
 ```
-MIT License
+Copyright (C) 2017 MerryMage
 
-Copyright (c) 2022 merryhime <https://mary.rs>
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 ```
 
 ### robin-map
@@ -369,30 +350,3 @@ THE POSSIBILITY OF SUCH DAMAGE.
 損害、間接損害、偶発的な損害、特別損害、懲罰的損害、または結果損害について、
 一切責任を負わないものとします。
 ```
-
-### zydis
-
-```
-The MIT License (MIT)
-
-Copyright (c) 2014-2020 Florian Bernd
-Copyright (c) 2014-2020 Joel Höner
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-```

docs/Design.md

@@ -5,14 +5,14 @@ support for other versions of the ARM architecture, having a interpreter mode, a
 for other architectures.
 
 Users of this library interact with it primarily through the interface provided in
-[`src/dynarmic/interface`](../src/dynarmic/interface). Users specify how dynarmic's CPU core interacts with
+[`include/dynarmic`](../include/dynarmic). Users specify how dynarmic's CPU core interacts with
 the rest of their system providing an implementation of the relevant `UserCallbacks` interface.
 Users setup the CPU state using member functions of `Jit`, then call `Jit::Execute` to start CPU
 execution. The callbacks defined on `UserCallbacks` may be called from dynamically generated code,
 so users of the library should not depend on the stack being in a walkable state for unwinding.
 
-* A32: [`Jit`](../src/dynarmic/interface/A32/a32.h), [`UserCallbacks`](../src/dynarmic/interface/A32/config.h)
-* A64: [`Jit`](../src/dynarmic/interface/A64/a64.h), [`UserCallbacks`](../src/dynarmic/interface/A64/config.h)
+* A32: [`Jit`](../include/dynarmic/A32/a32.h), [`UserCallbacks`](../include/dynarmic/A32/config.h)
+* A64: [`Jit`](../include/dynarmic/A64/a64.h), [`UserCallbacks`](../include/dynarmic/A64/config.h)
 
 Dynarmic reads instructions from memory by calling `UserCallbacks::MemoryReadCode`. These
 instructions then pass through several stages:
@@ -26,19 +26,19 @@ instructions then pass through several stages:
 Using the A32 frontend with the x64 backend as an example:
 
 * Decoding is done by [double dispatch](https://en.wikipedia.org/wiki/Visitor_pattern) in
-  [`src/frontend/A32/decoder/{arm.h,thumb16.h,thumb32.h}`](../src/dynarmic/frontend/A32/decoder/).
-* Translation is done by the visitors in [`src/dynarmic/frontend/A32/translate/translate_{arm,thumb}.cpp`](../src/dynarmic/frontend/A32/translate/).
-  The function [`Translate`](../src/dynarmic/frontend/A32/translate/translate.h) takes a starting memory location,
+  [`src/frontend/A32/decoder/{arm.h,thumb16.h,thumb32.h}`](../src/frontend/A32/decoder/).
+* Translation is done by the visitors in `src/frontend/A32/translate/translate_{arm,thumb}.cpp`.
+  The function [`Translate`](../src/frontend/A32/translate/translate.h) takes a starting memory location,
   some CPU state, and memory reader callback and returns a basic block of IR.
-* The IR can be found under [`src/frontend/ir/`](../src/dynarmic/ir/).
-* Optimizations can be found under [`src/ir_opt/`](../src/dynarmic/ir/opt/).
-* Emission is done by `EmitX64` which can be found in [`src/dynarmic/backend/x64/emit_x64.{h,cpp}`](../src/dynarmic/backend/x64/).
-* Execution is performed by calling `BlockOfCode::RunCode` in [`src/dynarmic/backend/x64/block_of_code.{h,cpp}`](../src/dynarmic/backend/x64/).
+* The IR can be found under [`src/frontend/ir/`](../src/frontend/ir/).
+* Optimizations can be found under [`src/ir_opt/`](../src/ir_opt/).
+* Emission is done by `EmitX64` which can be found in `src/backend_x64/emit_x64.{h,cpp}`.
+* Execution is performed by calling `BlockOfCode::RunCode` in `src/backend_x64/block_of_code.{h,cpp}`.
 
 ## Decoder
 
 The decoder is a double dispatch decoder. Each instruction is represented by a line in the relevant
-instruction table. Here is an example line from [`arm.h`](../src/dynarmic/frontend/A32/decoder/arm.h):
+instruction table. Here is an example line from [`arm.h`](../src/frontend/A32/decoder/arm.h):
 
     INST(&V::arm_ADC_imm,     "ADC (imm)",           "cccc0010101Snnnnddddrrrrvvvvvvvv")
 
@@ -61,7 +61,7 @@ error results.
 ## Translator
 
 The translator is a visitor that uses the decoder to decode instructions. The translator generates IR code with the
-help of the [`IREmitter` class](../src/dynarmic/ir/ir_emitter.h). An example of a translation function follows:
+help of the [`IREmitter` class](../src/frontend/ir/ir_emitter.h). An example of a translation function follows:
 
     bool ArmTranslatorVisitor::arm_ADC_imm(Cond cond, bool S, Reg n, Reg d, int rotate, Imm8 imm8) {
         u32 imm32 = ArmExpandImm(rotate, imm8);
@@ -107,7 +107,7 @@ function analyser in the medium-term future.
 Dynarmic's intermediate representation is typed. Each microinstruction may take zero or more arguments and may
 return zero or more arguments. A subset of the microinstructions available is documented below.
 
-A complete list of microinstructions can be found in [src/dynarmic/ir/opcodes.inc](../src/dynarmic/ir/opcodes.inc).
+A complete list of microinstructions can be found in [src/frontend/ir/opcodes.inc](../src/frontend/ir/opcodes.inc).
 
 The below lists some commonly used microinstructions.
 

externals/CMakeLists.txt

@@ -1,64 +1,36 @@
-# Always build externals as static libraries, even when dynarmic is built as shared
-if (BUILD_SHARED_LIBS)
-    set(BUILD_SHARED_LIBS OFF)
-    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-endif()
-
 # For libraries that already come with a CMakeLists file,
 # simply add the directory to that file as a subdirectory
 # to have CMake automatically recognize them.
 
 # catch
 
-if (DYNARMIC_TESTS AND NOT TARGET catch)
-    add_library(catch INTERFACE)
-    target_include_directories(catch INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/catch/include>)
-endif()
+add_library(catch INTERFACE)
+target_include_directories(catch INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/catch>)
 
 # fmt
 
-if (NOT TARGET fmt AND NOT TARGET fmt::fmt)
+if (NOT DYNARMIC_NO_BUNDLED_FMT)
     # fmtlib formatting library
     add_subdirectory(fmt)
 endif()
 
-# mcl
+# mp
 
-if (NOT TARGET merry::mcl)
-    add_subdirectory(mcl)
-endif()
-
-# oaknut
-
-if (NOT TARGET merry::oaknut)
-    if (ARCHITECTURE STREQUAL "arm64")
-        add_subdirectory(oaknut)
-    endif()
-endif()
+add_library(mp INTERFACE)
+target_include_directories(mp INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/mp/include>)
 
 # robin-map
 
-if (NOT TARGET tsl::robin_map)
-    add_subdirectory(robin-map)
-endif()
+add_library(robin_map INTERFACE)
+add_library(tsl::robin_map ALIAS robin_map)
+target_include_directories(robin_map SYSTEM INTERFACE "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/robin-map/include>")
 
 # xbyak
 
 if (NOT TARGET xbyak)
-    if (ARCHITECTURE STREQUAL "x86" OR ARCHITECTURE STREQUAL "x86_64")
+    if (ARCHITECTURE_x86 OR ARCHITECTURE_x86_64)
         add_library(xbyak INTERFACE)
-        file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/xbyak/include)
-        file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/xbyak/xbyak DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/xbyak/include)
-        target_include_directories(xbyak SYSTEM INTERFACE ${CMAKE_CURRENT_BINARY_DIR}/xbyak/include)
+        target_include_directories(xbyak SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/xbyak/xbyak)
         target_compile_definitions(xbyak INTERFACE XBYAK_NO_OP_NAMES)
     endif()
 endif()
-
-# zydis
-
-if (NOT TARGET Zydis)
-    option(ZYDIS_BUILD_TOOLS "" OFF)
-    option(ZYDIS_BUILD_EXAMPLES "" OFF)
-    set(ZYDIS_ZYCORE_PATH "${CMAKE_CURRENT_LIST_DIR}/zycore" CACHE PATH "")
-    add_subdirectory(zydis EXCLUDE_FROM_ALL)
-endif()

externals/README.md

@@ -4,12 +4,9 @@ This repository uses subtrees to manage some of its externals.
 
 ```
 git remote add externals-fmt https://github.com/fmtlib/fmt.git --no-tags
-git remote add externals-mcl https://github.com/merryhime/mcl.git --no-tags
-git remote add externals-oaknut https://github.com/merryhime/oaknut.git --no-tags
+git remote add externals-mp https://github.com/MerryMage/mp.git --no-tags
 git remote add externals-robin-map https://github.com/Tessil/robin-map.git --no-tags
 git remote add externals-xbyak https://github.com/herumi/xbyak.git --no-tags
-git remote add externals-zycore https://github.com/zyantific/zycore-c.git --no-tags
-git remote add externals-zydis https://github.com/zyantific/zydis.git --no-tags
 ```
 
 ## Updating
@@ -18,17 +15,11 @@ Change `<ref>` to refer to the appropriate git reference.
 
 ```
 git fetch externals-fmt
-git fetch externals-mcl
-git fetch externals-oaknut
+git fetch externals-mp
 git fetch externals-robin-map
 git fetch externals-xbyak
-git fetch externals-zycore
-git fetch externals-zydis
 git subtree pull --squash --prefix=externals/fmt externals-fmt <ref>
-git subtree pull --squash --prefix=externals/mcl externals-mcl <ref>
-git subtree pull --squash --prefix=externals/oaknut externals-oaknut <ref>
+git subtree pull --squash --prefix=externals/mp externals-mp <ref>
 git subtree pull --squash --prefix=externals/robin-map externals-robin-map <ref>
 git subtree pull --squash --prefix=externals/xbyak externals-xbyak <ref>
-git subtree pull --squash --prefix=externals/zycore externals-zycore <ref>
-git subtree pull --squash --prefix=externals/zydis externals-zydis <ref>
 ```

externals/fmt/.github/issue_template.md

@@ -1,6 +0,0 @@
-<!--
-Please make sure that the problem reproduces on the current master before
-submitting an issue.
-If possible please provide a repro on Compiler Explorer:
-https://godbolt.org/z/fxccbh53W.
--->

externals/fmt/.github/pull_request_template.md

@@ -1,6 +0,0 @@
-<!--
-Please read the contribution guidelines before submitting a pull request:
-https://github.com/fmtlib/fmt/blob/master/CONTRIBUTING.md.
-By submitting this pull request, you agree that your contributions are licensed
-under the {fmt} license, and agree to future changes to the licensing.
--->

externals/fmt/.github/workflows/doc.yml

@@ -1,27 +0,0 @@
-name: doc
-
-on: [push, pull_request]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    # Use Ubuntu 20.04 because doxygen 1.8.13 from Ubuntu 18.04 is broken.
-    runs-on: ubuntu-20.04
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Create Build Environment
-      run: |
-        sudo apt update
-        sudo apt install doxygen python3-virtualenv
-        sudo npm install -g less clean-css
-        cmake -E make_directory ${{runner.workspace}}/build
-
-    - name: Build
-      working-directory: ${{runner.workspace}}/build
-      env:
-        KEY: ${{secrets.KEY}}
-      run: $GITHUB_WORKSPACE/support/build-docs.py

externals/fmt/.github/workflows/linux.yml

@@ -1,94 +0,0 @@
-name: linux
-
-on: [push, pull_request]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        cxx: [g++-4.8, g++-10, clang++-9]
-        build_type: [Debug, Release]
-        std: [11]
-        os: [ubuntu-18.04]
-        include:
-          - cxx: g++-4.8
-            install: sudo apt install g++-4.8
-            os: ubuntu-18.04
-          - cxx: g++-8
-            build_type: Debug
-            std: 14
-            install: sudo apt install g++-8
-            os: ubuntu-18.04
-          - cxx: g++-8
-            build_type: Debug
-            std: 17
-            install: sudo apt install g++-8
-            os: ubuntu-18.04
-          - cxx: g++-10
-            build_type: Debug
-            std: 17
-            os: ubuntu-18.04
-          - cxx: g++-11
-            build_type: Debug
-            std: 20
-            os: ubuntu-20.04
-            install: sudo apt install g++-11
-          - cxx: clang++-8
-            build_type: Debug
-            std: 17
-            cxxflags: -stdlib=libc++
-            os: ubuntu-18.04
-            install: sudo apt install clang-8 libc++-8-dev libc++abi-8-dev
-          - cxx: clang++-9
-            build_type: Debug
-            fuzz: -DFMT_FUZZ=ON -DFMT_FUZZ_LINKMAIN=ON
-            std: 17
-            os: ubuntu-18.04
-          - cxx: clang++-11
-            build_type: Debug
-            std: 20
-            os: ubuntu-20.04
-          - cxx: clang++-11
-            build_type: Debug
-            std: 20
-            cxxflags: -stdlib=libc++
-            os: ubuntu-20.04
-            install: sudo apt install libc++-11-dev libc++abi-11-dev
-          - shared: -DBUILD_SHARED_LIBS=ON
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Create Build Environment
-      run: |
-        ${{matrix.install}}
-        sudo apt update
-        sudo apt install locales-all
-        cmake -E make_directory ${{runner.workspace}}/build
-
-    - name: Configure
-      working-directory: ${{runner.workspace}}/build
-      env:
-        CXX: ${{matrix.cxx}}
-        CXXFLAGS: ${{matrix.cxxflags}}
-      run: |
-        cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} ${{matrix.fuzz}} ${{matrix.shared}} \
-              -DCMAKE_CXX_STANDARD=${{matrix.std}} -DFMT_DOC=OFF \
-              -DCMAKE_CXX_VISIBILITY_PRESET=hidden -DCMAKE_VISIBILITY_INLINES_HIDDEN=ON \
-              -DFMT_PEDANTIC=ON -DFMT_WERROR=ON $GITHUB_WORKSPACE
-
-    - name: Build
-      working-directory: ${{runner.workspace}}/build
-      run: |
-        threads=`nproc`
-        cmake --build . --config ${{matrix.build_type}} --parallel $threads
-
-    - name: Test
-      working-directory: ${{runner.workspace}}/build
-      run: ctest -C ${{matrix.build_type}}
-      env:
-        CTEST_OUTPUT_ON_FAILURE: True

externals/fmt/.github/workflows/macos.yml

@@ -1,40 +0,0 @@
-name: macos
-
-on: [push, pull_request]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    runs-on: macos-10.15
-    strategy:
-      matrix:
-        build_type: [Debug, Release]
-        include:
-          - shared: -DBUILD_SHARED_LIBS=ON
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
-
-    - name: Configure
-      working-directory: ${{runner.workspace}}/build
-      run: |
-        cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} ${{matrix.shared}} \
-              -DCMAKE_CXX_VISIBILITY_PRESET=hidden -DCMAKE_VISIBILITY_INLINES_HIDDEN=ON \
-              -DFMT_DOC=OFF -DFMT_PEDANTIC=ON -DFMT_WERROR=ON $GITHUB_WORKSPACE
-
-    - name: Build
-      working-directory: ${{runner.workspace}}/build
-      run: |
-        threads=`sysctl -n hw.logicalcpu`
-        cmake --build . --config ${{matrix.build_type}} --parallel $threads
-
-    - name: Test
-      working-directory: ${{runner.workspace}}/build
-      run: ctest -C ${{matrix.build_type}}
-      env:
-        CTEST_OUTPUT_ON_FAILURE: True

externals/fmt/.github/workflows/windows.yml

@@ -1,63 +0,0 @@
-name: windows
-
-on: [push, pull_request]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    runs-on: ${{matrix.os}}
-    strategy:
-      matrix:
-        # windows-2019 has MSVC 2019 installed;
-        # windows-2022 has MSVC 2022 installed:
-        # https://github.com/actions/virtual-environments.
-        os: [windows-2019]
-        platform: [Win32, x64]
-        build_type: [Debug, Release]
-        standard: [11, 17, 20]
-        include:
-          - os: windows-2019
-            platform: Win32
-            build_type: Debug
-            shared: -DBUILD_SHARED_LIBS=ON
-          - os: windows-2022
-            platform: x64
-            build_type: Debug
-            standard: 20
-        exclude:
-          - os: windows-2019
-            standard: 11
-            platform: Win32
-          - os: windows-2019
-            standard: 20
-            platform: Win32
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
-
-    - name: Configure
-      # Use a bash shell for $GITHUB_WORKSPACE.
-      shell: bash
-      working-directory: ${{runner.workspace}}/build
-      run: |
-        cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} ${{matrix.shared}} \
-              -A ${{matrix.platform}} \
-              -DCMAKE_CXX_STANDARD=${{matrix.standard}} \
-              $GITHUB_WORKSPACE
-
-    - name: Build
-      working-directory: ${{runner.workspace}}/build
-      run: |
-        $threads = (Get-CimInstance Win32_ComputerSystem).NumberOfLogicalProcessors
-        cmake --build . --config ${{matrix.build_type}} --parallel $threads
-
-    - name: Test
-      working-directory: ${{runner.workspace}}/build
-      run: ctest -C ${{matrix.build_type}} -V
-      env:
-        CTEST_OUTPUT_ON_FAILURE: True

externals/fmt/.gitignore

@@ -1,37 +0,0 @@
-.vscode/
-.vs/
-
-*.iml
-.idea/
-.externalNativeBuild/
-.gradle/
-gradle/
-gradlew*
-local.properties
-build/
-support/.cxx
-
-bin/
-/_CPack_Packages
-/CMakeScripts
-/doc/doxyxml
-/doc/html
-/doc/node_modules
-virtualenv
-/Testing
-/install_manifest.txt
-*~
-*.a
-*.so*
-*.xcodeproj
-*.zip
-cmake_install.cmake
-CPack*.cmake
-fmt-*.cmake
-CTestTestfile.cmake
-CMakeCache.txt
-CMakeFiles
-FMT.build
-Makefile
-run-msbuild.bat
-fmt.pc

externals/fmt/CMakeLists.txt

@@ -262,12 +262,6 @@ if (CMAKE_BUILD_TYPE STREQUAL "Debug")
 endif ()
 
 if (BUILD_SHARED_LIBS)
-  if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND
-      NOT EMSCRIPTEN)
-    # Fix rpmlint warning:
-    # unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
-    target_link_libraries(fmt -Wl,--as-needed)
-  endif ()
   target_compile_definitions(fmt PRIVATE FMT_EXPORT INTERFACE FMT_SHARED)
 endif ()
 if (FMT_SAFE_DURATION_CAST)

externals/fmt/ChangeLog.rst

@@ -1,3 +1,129 @@
+9.1.0 - 2022-08-27
+------------------
+
+* ``fmt::formatted_size`` now works at compile time
+  (`#3026 <https://github.com/fmtlib/fmt/pull/3026>`_). For example
+  (`godbolt <https://godbolt.org/z/1MW5rMdf8>`__):
+
+  .. code:: c++
+
+     #include <fmt/compile.h>
+
+     int main() {
+       using namespace fmt::literals;
+       constexpr size_t n = fmt::formatted_size("{}"_cf, 42);
+       fmt::print("{}\n", n); // prints 2
+     }
+
+  Thanks `@marksantaniello (Mark Santaniello)
+  <https://github.com/marksantaniello>`_.
+
+* Fixed handling of invalid UTF-8 
+  (`#3038 <https://github.com/fmtlib/fmt/pull/3038>`_,
+  `#3044 <https://github.com/fmtlib/fmt/pull/3044>`_,
+  `#3056 <https://github.com/fmtlib/fmt/pull/3056>`_).
+  Thanks `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_ and
+  `@skeeto (Christopher Wellons) <https://github.com/skeeto>`_.
+
+* Improved Unicode support in ``ostream`` overloads of ``print``
+  (`#2994 <https://github.com/fmtlib/fmt/pull/2994>`_,
+  `#3001 <https://github.com/fmtlib/fmt/pull/3001>`_,
+  `#3025 <https://github.com/fmtlib/fmt/pull/3025>`_).
+  Thanks `@dimztimz (Dimitrij Mijoski) <https://github.com/dimztimz>`_.
+
+* Fixed handling of the sign specifier in localized formatting on systems with
+  32-bit ``wchar_t`` (`#3041 <https://github.com/fmtlib/fmt/issues/3041>`_).
+
+* Added support for wide streams to ``fmt::streamed``
+  (`#2994 <https://github.com/fmtlib/fmt/pull/2994>`_).
+  Thanks `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_.
+
+* Added the ``n`` specifier that disables the output of delimiters when
+  formatting ranges (`#2981 <https://github.com/fmtlib/fmt/pull/2981>`_,
+  `#2983 <https://github.com/fmtlib/fmt/pull/2983>`_).
+  For example (`godbolt <https://godbolt.org/z/roKqGdj8c>`__):
+
+  .. code:: c++
+
+     #include <fmt/ranges.h>
+     #include <vector>
+
+     int main() {
+       auto v = std::vector{1, 2, 3};
+       fmt::print("{:n}\n", v); // prints 1, 2, 3
+     }
+
+  Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Worked around problematic ``std::string_view`` constructors introduced in
+  C++23 (`#3030 <https://github.com/fmtlib/fmt/issues/3030>`_,
+  `#3050 <https://github.com/fmtlib/fmt/issues/3050>`_).
+  Thanks `@strega-nil-ms (nicole mazzuca) <https://github.com/strega-nil-ms>`_.
+
+* Improve handling (exclusion) of recursive ranges
+  (`#2968 <https://github.com/fmtlib/fmt/issues/2968>`_,
+  `#2974 <https://github.com/fmtlib/fmt/pull/2974>`_).
+  Thanks `@Dani-Hub (Daniel Krügler) <https://github.com/Dani-Hub>`_.
+
+* Improved error reporting in format string compilation
+  (`#3055 <https://github.com/fmtlib/fmt/issues/3055>`_).
+
+* Improved the implementation of
+  `Dragonbox <https://github.com/jk-jeon/dragonbox>`_, the algorithm used for
+  the default floating-point formatting
+  (`#2984 <https://github.com/fmtlib/fmt/pull/2984>`_).
+  Thanks `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_.
+
+* Fixed issues with floating-point formatting on exotic platforms.
+
+* Improved the implementation of chrono formatting
+  (`#3010 <https://github.com/fmtlib/fmt/pull/3010>`_).
+  Thanks `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_.
+
+* Improved documentation
+  (`#2966 <https://github.com/fmtlib/fmt/pull/2966>`_,
+  `#3009 <https://github.com/fmtlib/fmt/pull/3009>`_,
+  `#3020 <https://github.com/fmtlib/fmt/issues/3020>`_,
+  `#3037 <https://github.com/fmtlib/fmt/pull/3037>`_).
+  Thanks `@mwinterb <https://github.com/mwinterb>`_,
+  `@jcelerier (Jean-Michaël Celerier) <https://github.com/jcelerier>`_
+  and `@remiburtin (Rémi Burtin) <https://github.com/remiburtin>`_.
+
+* Improved build configuration
+  (`#2991 <https://github.com/fmtlib/fmt/pull/2991>`_,
+  `#2995 <https://github.com/fmtlib/fmt/pull/2995>`_,
+  `#3004 <https://github.com/fmtlib/fmt/issues/3004>`_,
+  `#3007 <https://github.com/fmtlib/fmt/pull/3007>`_,
+  `#3040 <https://github.com/fmtlib/fmt/pull/3040>`_).
+  Thanks `@dimztimz (Dimitrij Mijoski) <https://github.com/dimztimz>`_ and
+  `@hwhsu1231 (Haowei Hsu) <https://github.com/hwhsu1231>`_.
+
+* Fixed various warnings and compilation issues
+  (`#2969 <https://github.com/fmtlib/fmt/issues/2969>`_,
+  `#2971 <https://github.com/fmtlib/fmt/pull/2971>`_,
+  `#2975 <https://github.com/fmtlib/fmt/issues/2975>`_,
+  `#2982 <https://github.com/fmtlib/fmt/pull/2982>`_,
+  `#2985 <https://github.com/fmtlib/fmt/pull/2985>`_,
+  `#2988 <https://github.com/fmtlib/fmt/issues/2988>`_,
+  `#3000 <https://github.com/fmtlib/fmt/issues/3000>`_,
+  `#3006 <https://github.com/fmtlib/fmt/issues/3006>`_,
+  `#3014 <https://github.com/fmtlib/fmt/issues/3014>`_,
+  `#3015 <https://github.com/fmtlib/fmt/issues/3015>`_,
+  `#3021 <https://github.com/fmtlib/fmt/pull/3021>`_,
+  `#3023 <https://github.com/fmtlib/fmt/issues/3023>`_,
+  `#3024 <https://github.com/fmtlib/fmt/pull/3024>`_,
+  `#3029 <https://github.com/fmtlib/fmt/pull/3029>`_,
+  `#3043 <https://github.com/fmtlib/fmt/pull/3043>`_,
+  `#3052 <https://github.com/fmtlib/fmt/issues/3052>`_,
+  `#3053 <https://github.com/fmtlib/fmt/pull/3053>`_,
+  `#3054 <https://github.com/fmtlib/fmt/pull/3054>`_).
+  Thanks `@h-friederich (Hannes Friederich) <https://github.com/h-friederich>`_,
+  `@dimztimz (Dimitrij Mijoski) <https://github.com/dimztimz>`_,
+  `@olupton (Olli Lupton) <https://github.com/olupton>`_,
+  `@bernhardmgruber (Bernhard Manfred Gruber)
+  <https://github.com/bernhardmgruber>`_,
+  `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_.
+
 9.0.0 - 2022-07-04
 ------------------
 
@@ -19,7 +145,7 @@
        return result;
      }
 
-     constexpr auto answer = compile_time_itoa(0.42);
+     constexpr auto answer = compile_time_dtoa(0.42);
 
   works with the default settings.
 

externals/fmt/README.rst

@@ -12,9 +12,6 @@
 .. image:: https://github.com/fmtlib/fmt/workflows/windows/badge.svg
    :target: https://github.com/fmtlib/fmt/actions?query=workflow%3Awindows
 
-.. image:: https://ci.appveyor.com/api/projects/status/ehjkiefde6gucy1v?svg=true
-   :target: https://ci.appveyor.com/project/vitaut/fmt
-
 .. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/fmt.svg
    :alt: fmt is continuously fuzzed at oss-fuzz
    :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?\

externals/fmt/doc/CMakeLists.txt

@@ -1,10 +1,19 @@
-find_program(DOXYGEN doxygen)
+find_program(DOXYGEN doxygen
+  PATHS "$ENV{ProgramFiles}/doxygen/bin"
+        "$ENV{ProgramFiles\(x86\)}/doxygen/bin")
 if (NOT DOXYGEN)
   message(STATUS "Target 'doc' disabled (requires doxygen)")
   return ()
 endif ()
 
-find_package(PythonInterp QUIET REQUIRED)
+# Find the Python interpreter and set the PYTHON_EXECUTABLE variable.
+if (CMAKE_VERSION VERSION_LESS 3.12)
+  # This logic is deprecated in CMake after 3.12.
+  find_package(PythonInterp QUIET REQUIRED)
+else ()
+  find_package(Python QUIET REQUIRED)
+  set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
+endif ()
 
 add_custom_target(doc
   COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/build.py

externals/fmt/doc/_static/breathe.css

@@ -1,28 +0,0 @@
-
-/* -- breathe specific styles ----------------------------------------------- */
-
-/* So enum value descriptions are displayed inline to the item */
-.breatheenumvalues li tt + p {
-  display: inline;
-}
-
-/* So parameter descriptions are displayed inline to the item */
-.breatheparameterlist li tt + p {
-  display: inline;
-}
-
-.container .breathe-sectiondef {
-  width: inherit;
-}
-
-.github-btn {
-  border: 0;
-  overflow: hidden;
-}
-
-.jumbotron {
-  background-size: 100% 4px;
-  background-repeat: repeat-y;
-  color: white;
-  text-align: center;
-}

externals/fmt/doc/api.rst

@@ -7,7 +7,7 @@ API Reference
 The {fmt} library API consists of the following parts:
 
 * :ref:`fmt/core.h <core-api>`: the core API providing main formatting functions
-  for ``char``/UTF-8 with compile-time checks and minimal dependencies
+  for ``char``/UTF-8 with C++20 compile-time checks and minimal dependencies
 * :ref:`fmt/format.h <format-api>`: the full format API providing additional
   formatting functions and locale support
 * :ref:`fmt/ranges.h <ranges-api>`: formatting of ranges and tuples
@@ -28,10 +28,10 @@ macros have prefix ``FMT_``.
 Core API
 ========
 
-``fmt/core.h`` defines the core API which provides main formatting functions for
-``char``/UTF-8 with compile-time checks. It has minimal include dependencies for
-better compile times. This header is only beneficial when using {fmt} as a
-library and not in the header-only mode.
+``fmt/core.h`` defines the core API which provides main formatting functions
+for ``char``/UTF-8 with C++20 compile-time checks. It has minimal include
+dependencies for better compile times. This header is only beneficial when
+using {fmt} as a library and not in the header-only mode.
 
 The following functions use :ref:`format string syntax <syntax>`
 similar to that of Python's `str.format
@@ -70,24 +70,23 @@ checked at compile time in C++20. To pass a runtime format string wrap it in
 Compile-Time Format String Checks
 ---------------------------------
 
-Compile-time checks are enabled when using ``FMT_STRING``. They support built-in
-and string types as well as user-defined types with ``constexpr`` ``parse``
-functions in their ``formatter`` specializations.
-Requires C++14 and is a no-op in C++11.
+Compile-time checks are enabled by default on compilers that support C++20
+``consteval``. On older compilers you can use the ``FMT_STRING`` macro defined
+in ``fmt/format.h`` instead. It requires C++14 and is a no-op in C++11.
 
 .. doxygendefine:: FMT_STRING
 
-To force the use of compile-time checks, define the preprocessor variable
+To force the use of legacy compile-time checks, define the preprocessor variable
 ``FMT_ENFORCE_COMPILE_STRING``. When set, functions accepting ``FMT_STRING``
-will fail to compile with regular strings. Runtime-checked
-formatting is still possible using ``fmt::vformat``, ``fmt::vprint``, etc.
+will fail to compile with regular strings. Runtime-checked formatting is still
+possible using ``fmt::vformat``, ``fmt::vprint``, etc.
 
 .. doxygenclass:: fmt::basic_format_string
    :members:
 
 .. doxygentypedef:: fmt::format_string
 
-.. doxygenfunction:: fmt::runtime(const S&)
+.. doxygenfunction:: fmt::runtime(string_view) -> basic_runtime<char>
 
 Named Arguments
 ---------------
@@ -474,7 +473,7 @@ Standard Library Types Formatting
 
 ``fmt/std.h`` provides formatters for:
 
-* `std::filesystem::path <std::filesystem::path>`_
+* `std::filesystem::path <https://en.cppreference.com/w/cpp/filesystem/path>`_
 * `std::thread::id <https://en.cppreference.com/w/cpp/thread/thread/id>`_
 * `std::monostate <https://en.cppreference.com/w/cpp/utility/variant/monostate>`_
 * `std::variant <https://en.cppreference.com/w/cpp/utility/variant/variant>`_

externals/fmt/doc/build.py

@@ -4,7 +4,7 @@
 import errno, os, re, sys
 from subprocess import check_call, CalledProcessError, Popen, PIPE, STDOUT
 
-versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0', '6.2.1', '7.0.0', '7.0.1', '7.0.2', '7.0.3', '7.1.0', '7.1.1', '7.1.2', '7.1.3', '8.0.0', '8.0.1', '8.1.0', '8.1.1', '9.0.0']
+versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0', '6.2.1', '7.0.0', '7.0.1', '7.0.2', '7.0.3', '7.1.0', '7.1.1', '7.1.2', '7.1.3', '8.0.0', '8.0.1', '8.1.0', '8.1.1', '9.0.0', '9.1.0']
 
 class Pip:
   def __init__(self, venv_dir):

externals/fmt/doc/html/_sources/api.rst.txt

@@ -0,0 +1,616 @@
+.. _string-formatting-api:
+
+*************
+API Reference
+*************
+
+The {fmt} library API consists of the following parts:
+
+* :ref:`fmt/core.h <core-api>`: the core API providing main formatting functions
+  for ``char``/UTF-8 with C++20 compile-time checks and minimal dependencies
+* :ref:`fmt/format.h <format-api>`: the full format API providing additional
+  formatting functions and locale support
+* :ref:`fmt/ranges.h <ranges-api>`: formatting of ranges and tuples
+* :ref:`fmt/chrono.h <chrono-api>`: date and time formatting
+* :ref:`fmt/std.h <std-api>`: formatters for standard library types
+* :ref:`fmt/compile.h <compile-api>`: format string compilation
+* :ref:`fmt/color.h <color-api>`: terminal color and text style
+* :ref:`fmt/os.h <os-api>`: system APIs
+* :ref:`fmt/ostream.h <ostream-api>`: ``std::ostream`` support
+* :ref:`fmt/printf.h <printf-api>`: ``printf`` formatting
+* :ref:`fmt/xchar.h <xchar-api>`: optional ``wchar_t`` support 
+
+All functions and types provided by the library reside in namespace ``fmt`` and
+macros have prefix ``FMT_``.
+
+.. _core-api:
+
+Core API
+========
+
+``fmt/core.h`` defines the core API which provides main formatting functions
+for ``char``/UTF-8 with C++20 compile-time checks. It has minimal include
+dependencies for better compile times. This header is only beneficial when
+using {fmt} as a library and not in the header-only mode.
+
+The following functions use :ref:`format string syntax <syntax>`
+similar to that of Python's `str.format
+<https://docs.python.org/3/library/stdtypes.html#str.format>`_.
+They take *fmt* and *args* as arguments.
+
+*fmt* is a format string that contains literal text and replacement fields
+surrounded by braces ``{}``. The fields are replaced with formatted arguments
+in the resulting string. `~fmt::format_string` is a format string which can be
+implicitly constructed from a string literal or a ``constexpr`` string and is
+checked at compile time in C++20. To pass a runtime format string wrap it in
+`fmt::runtime`.
+
+*args* is an argument list representing objects to be formatted.
+
+.. _format:
+
+.. doxygenfunction:: format(format_string<T...> fmt, T&&... args) -> std::string
+.. doxygenfunction:: vformat(string_view fmt, format_args args) -> std::string
+
+.. doxygenfunction:: format_to(OutputIt out, format_string<T...> fmt, T&&... args) -> OutputIt
+.. doxygenfunction:: format_to_n(OutputIt out, size_t n, format_string<T...> fmt, T&&... args) -> format_to_n_result<OutputIt>
+.. doxygenfunction:: formatted_size(format_string<T...> fmt, T&&... args) -> size_t
+
+.. doxygenstruct:: fmt::format_to_n_result
+   :members:
+
+.. _print:
+
+.. doxygenfunction:: fmt::print(format_string<T...> fmt, T&&... args)
+.. doxygenfunction:: fmt::vprint(string_view fmt, format_args args)
+
+.. doxygenfunction:: print(std::FILE *f, format_string<T...> fmt, T&&... args)
+.. doxygenfunction:: vprint(std::FILE *f, string_view fmt, format_args args)
+
+Compile-Time Format String Checks
+---------------------------------
+
+Compile-time checks are enabled by default on compilers that support C++20
+``consteval``. On older compilers you can use the ``FMT_STRING`` macro defined
+in ``fmt/format.h`` instead. It requires C++14 and is a no-op in C++11.
+
+.. doxygendefine:: FMT_STRING
+
+To force the use of legacy compile-time checks, define the preprocessor variable
+``FMT_ENFORCE_COMPILE_STRING``. When set, functions accepting ``FMT_STRING``
+will fail to compile with regular strings. Runtime-checked formatting is still
+possible using ``fmt::vformat``, ``fmt::vprint``, etc.
+
+.. doxygenclass:: fmt::basic_format_string
+   :members:
+
+.. doxygentypedef:: fmt::format_string
+
+.. doxygenfunction:: fmt::runtime(string_view) -> basic_runtime<char>
+
+Named Arguments
+---------------
+
+.. doxygenfunction:: fmt::arg(const S&, const T&)
+
+Named arguments are not supported in compile-time checks at the moment.
+
+Argument Lists
+--------------
+
+You can create your own formatting function with compile-time checks and small
+binary footprint, for example (https://godbolt.org/z/oba4Mc):
+
+.. code:: c++
+
+    #include <fmt/format.h>
+
+    void vlog(const char* file, int line, fmt::string_view format,
+              fmt::format_args args) {
+      fmt::print("{}: {}: ", file, line);
+      fmt::vprint(format, args);
+    }
+
+    template <typename S, typename... Args>
+    void log(const char* file, int line, const S& format, Args&&... args) {
+      vlog(file, line, format, fmt::make_format_args(args...));
+    }
+
+    #define MY_LOG(format, ...) \
+      log(__FILE__, __LINE__, FMT_STRING(format), __VA_ARGS__)
+
+    MY_LOG("invalid squishiness: {}", 42);
+
+Note that ``vlog`` is not parameterized on argument types which improves compile
+times and reduces binary code size compared to a fully parameterized version.
+
+.. doxygenfunction:: fmt::make_format_args(const Args&...)
+
+.. doxygenclass:: fmt::format_arg_store
+   :members:
+
+.. doxygenclass:: fmt::dynamic_format_arg_store
+   :members:
+
+.. doxygenclass:: fmt::basic_format_args
+   :members:
+
+.. doxygentypedef:: fmt::format_args
+
+.. doxygenclass:: fmt::basic_format_arg
+   :members:
+
+.. doxygenclass:: fmt::basic_format_parse_context
+   :members:
+
+.. doxygenclass:: fmt::basic_format_context
+   :members:
+
+.. doxygentypedef:: fmt::format_context
+
+Compatibility
+-------------
+
+.. doxygenclass:: fmt::basic_string_view
+   :members:
+
+.. doxygentypedef:: fmt::string_view
+
+Locale
+------
+
+All formatting is locale-independent by default. Use the ``'L'`` format
+specifier to insert the appropriate number separator characters from the
+locale::
+
+  #include <fmt/core.h>
+  #include <locale>
+
+  std::locale::global(std::locale("en_US.UTF-8"));
+  auto s = fmt::format("{:L}", 1000000);  // s == "1,000,000"
+
+.. _format-api:
+
+Format API
+==========
+
+``fmt/format.h`` defines the full format API providing additional formatting
+functions and locale support.
+
+.. _udt:
+
+Formatting User-Defined Types
+-----------------------------
+
+The {fmt} library provides formatters for many standard C++ types.
+See :ref:`fmt/ranges.h <ranges-api>` for ranges and tuples including standard
+containers such as ``std::vector``, :ref:`fmt/chrono.h <chrono-api>` for date
+and time formatting and :ref:`fmt/std.h <std-api>` for path and variant 
+formatting.
+
+To make a user-defined type formattable, specialize the ``formatter<T>`` struct
+template and implement ``parse`` and ``format`` methods::
+
+  #include <fmt/format.h>
+
+  struct point {
+    double x, y;
+  };
+
+  template <> struct fmt::formatter<point> {
+    // Presentation format: 'f' - fixed, 'e' - exponential.
+    char presentation = 'f';
+
+    // Parses format specifications of the form ['f' | 'e'].
+    constexpr auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
+      // [ctx.begin(), ctx.end()) is a character range that contains a part of
+      // the format string starting from the format specifications to be parsed,
+      // e.g. in
+      //
+      //   fmt::format("{:f} - point of interest", point{1, 2});
+      //
+      // the range will contain "f} - point of interest". The formatter should
+      // parse specifiers until '}' or the end of the range. In this example
+      // the formatter should parse the 'f' specifier and return an iterator
+      // pointing to '}'.
+      
+      // Please also note that this character range may be empty, in case of
+      // the "{}" format string, so therefore you should check ctx.begin()
+      // for equality with ctx.end().
+
+      // Parse the presentation format and store it in the formatter:
+      auto it = ctx.begin(), end = ctx.end();
+      if (it != end && (*it == 'f' || *it == 'e')) presentation = *it++;
+
+      // Check if reached the end of the range:
+      if (it != end && *it != '}') throw format_error("invalid format");
+
+      // Return an iterator past the end of the parsed range:
+      return it;
+    }
+
+    // Formats the point p using the parsed format specification (presentation)
+    // stored in this formatter.
+    template <typename FormatContext>
+    auto format(const point& p, FormatContext& ctx) const -> decltype(ctx.out()) {
+      // ctx.out() is an output iterator to write to.
+      return presentation == 'f'
+                ? fmt::format_to(ctx.out(), "({:.1f}, {:.1f})", p.x, p.y)
+                : fmt::format_to(ctx.out(), "({:.1e}, {:.1e})", p.x, p.y);
+    }
+  };
+
+Then you can pass objects of type ``point`` to any formatting function::
+
+  point p = {1, 2};
+  std::string s = fmt::format("{:f}", p);
+  // s == "(1.0, 2.0)"
+
+You can also reuse existing formatters via inheritance or composition, for
+example::
+
+  enum class color {red, green, blue};
+
+  template <> struct fmt::formatter<color>: formatter<string_view> {
+    // parse is inherited from formatter<string_view>.
+    template <typename FormatContext>
+    auto format(color c, FormatContext& ctx) const {
+      string_view name = "unknown";
+      switch (c) {
+      case color::red:   name = "red"; break;
+      case color::green: name = "green"; break;
+      case color::blue:  name = "blue"; break;
+      }
+      return formatter<string_view>::format(name, ctx);
+    }
+  };
+
+Since ``parse`` is inherited from ``formatter<string_view>`` it will recognize
+all string format specifications, for example
+
+.. code-block:: c++
+
+   fmt::format("{:>10}", color::blue)
+
+will return ``"      blue"``.
+
+You can also write a formatter for a hierarchy of classes::
+
+  #include <type_traits>
+  #include <fmt/format.h>
+
+  struct A {
+    virtual ~A() {}
+    virtual std::string name() const { return "A"; }
+  };
+
+  struct B : A {
+    virtual std::string name() const { return "B"; }
+  };
+
+  template <typename T>
+  struct fmt::formatter<T, std::enable_if_t<std::is_base_of<A, T>::value, char>> :
+      fmt::formatter<std::string> {
+    template <typename FormatCtx>
+    auto format(const A& a, FormatCtx& ctx) const {
+      return fmt::formatter<std::string>::format(a.name(), ctx);
+    }
+  };
+
+  int main() {
+    B b;
+    A& a = b;
+    fmt::print("{}", a); // prints "B"
+  }
+
+If a type provides both a ``formatter`` specialization and an implicit
+conversion to a formattable type, the specialization takes precedence over the
+conversion.
+
+For enums {fmt} also provides the ``format_as`` extension API. To format an enum
+via this API define ``format_as`` that takes this enum and converts it to the
+underlying type. ``format_as`` should be defined in the same namespace as the
+enum.
+
+Example (https://godbolt.org/z/r7vvGE1v7)::
+
+  #include <fmt/format.h>
+
+  namespace kevin_namespacy {
+  enum class film {
+    house_of_cards, american_beauty, se7en = 7
+  };
+  auto format_as(film f) { return fmt::underlying(f); }
+  }
+
+  int main() {
+    fmt::print("{}\n", kevin_namespacy::film::se7en); // prints "7"
+  }
+
+Literal-Based API
+-----------------
+
+The following user-defined literals are defined in ``fmt/format.h``.
+
+.. doxygenfunction:: operator""_a()
+
+Utilities
+---------
+
+.. doxygenfunction:: fmt::ptr(T p) -> const void*
+.. doxygenfunction:: fmt::ptr(const std::unique_ptr<T> &p) -> const void*
+.. doxygenfunction:: fmt::ptr(const std::shared_ptr<T> &p) -> const void*
+
+.. doxygenfunction:: fmt::underlying(Enum e) -> typename std::underlying_type<Enum>::type
+
+.. doxygenfunction:: fmt::to_string(const T &value) -> std::string
+
+.. doxygenfunction:: fmt::join(Range &&range, string_view sep) -> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>>
+
+.. doxygenfunction:: fmt::join(It begin, Sentinel end, string_view sep) -> join_view<It, Sentinel>
+
+.. doxygenfunction:: fmt::group_digits(T value) -> group_digits_view<T>
+
+.. doxygenclass:: fmt::detail::buffer
+   :members:
+
+.. doxygenclass:: fmt::basic_memory_buffer
+   :protected-members:
+   :members:
+
+System Errors
+-------------
+
+{fmt} does not use ``errno`` to communicate errors to the user, but it may call
+system functions which set ``errno``. Users should not make any assumptions
+about the value of ``errno`` being preserved by library functions.
+
+.. doxygenfunction:: fmt::system_error
+
+.. doxygenfunction:: fmt::format_system_error
+
+Custom Allocators
+-----------------
+
+The {fmt} library supports custom dynamic memory allocators.
+A custom allocator class can be specified as a template argument to
+:class:`fmt::basic_memory_buffer`::
+
+    using custom_memory_buffer = 
+      fmt::basic_memory_buffer<char, fmt::inline_buffer_size, custom_allocator>;
+
+It is also possible to write a formatting function that uses a custom
+allocator::
+
+    using custom_string =
+      std::basic_string<char, std::char_traits<char>, custom_allocator>;
+
+    custom_string vformat(custom_allocator alloc, fmt::string_view format_str,
+                          fmt::format_args args) {
+      auto buf = custom_memory_buffer(alloc);
+      fmt::vformat_to(std::back_inserter(buf), format_str, args);
+      return custom_string(buf.data(), buf.size(), alloc);
+    }
+
+    template <typename ...Args>
+    inline custom_string format(custom_allocator alloc,
+                                fmt::string_view format_str,
+                                const Args& ... args) {
+      return vformat(alloc, format_str, fmt::make_format_args(args...));
+    }
+
+The allocator will be used for the output container only. Formatting functions
+normally don't do any allocations for built-in and string types except for
+non-default floating-point formatting that occasionally falls back on
+``sprintf``.
+
+.. _ranges-api:
+
+Range and Tuple Formatting
+==========================
+
+The library also supports convenient formatting of ranges and tuples::
+
+  #include <fmt/ranges.h>
+
+  std::tuple<char, int, float> t{'a', 1, 2.0f};
+  // Prints "('a', 1, 2.0)"
+  fmt::print("{}", t);
+
+
+NOTE: currently, the overload of ``fmt::join`` for iterables exists in the main
+``format.h`` header, but expect this to change in the future.
+
+Using ``fmt::join``, you can separate tuple elements with a custom separator::
+
+  #include <fmt/ranges.h>
+
+  std::tuple<int, char> t = {1, 'a'};
+  // Prints "1, a"
+  fmt::print("{}", fmt::join(t, ", "));
+
+.. _chrono-api:
+
+Date and Time Formatting
+========================
+
+``fmt/chrono.h`` provides formatters for
+
+* `std::chrono::duration <https://en.cppreference.com/w/cpp/chrono/duration>`_
+* `std::chrono::time_point
+  <https://en.cppreference.com/w/cpp/chrono/time_point>`_
+* `std::tm <https://en.cppreference.com/w/cpp/chrono/c/tm>`_
+
+The format syntax is described in :ref:`chrono-specs`.
+
+**Example**::
+
+  #include <fmt/chrono.h>
+
+  int main() {
+    std::time_t t = std::time(nullptr);
+
+    // Prints "The date is 2020-11-07." (with the current date):
+    fmt::print("The date is {:%Y-%m-%d}.", fmt::localtime(t));
+
+    using namespace std::literals::chrono_literals;
+
+    // Prints "Default format: 42s 100ms":
+    fmt::print("Default format: {} {}\n", 42s, 100ms);
+
+    // Prints "strftime-like format: 03:15:30":
+    fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s);
+  }
+
+.. doxygenfunction:: localtime(std::time_t time)
+
+.. doxygenfunction:: gmtime(std::time_t time)
+
+.. _std-api:
+
+Standard Library Types Formatting
+=================================
+
+``fmt/std.h`` provides formatters for:
+
+* `std::filesystem::path <https://en.cppreference.com/w/cpp/filesystem/path>`_
+* `std::thread::id <https://en.cppreference.com/w/cpp/thread/thread/id>`_
+* `std::monostate <https://en.cppreference.com/w/cpp/utility/variant/monostate>`_
+* `std::variant <https://en.cppreference.com/w/cpp/utility/variant/variant>`_
+
+Formatting Variants
+-------------------
+
+A ``std::variant`` is only formattable if every variant alternative is formattable, and requires the
+``__cpp_lib_variant`` `library feature <https://en.cppreference.com/w/cpp/feature_test>`_.
+  
+**Example**::
+
+  #include <fmt/std.h>
+
+  std::variant<char, float> v0{'x'};
+  // Prints "variant('x')"
+  fmt::print("{}", v0);
+
+  std::variant<std::monostate, char> v1;
+  // Prints "variant(monostate)"
+
+.. _compile-api:
+
+Format String Compilation
+=========================
+
+``fmt/compile.h`` provides format string compilation enabled via the
+``FMT_COMPILE`` macro or the ``_cf`` user-defined literal. Format strings
+marked with ``FMT_COMPILE`` or ``_cf`` are parsed, checked and converted into
+efficient formatting code at compile-time. This supports arguments of built-in
+and string types as well as user-defined types with ``constexpr`` ``parse``
+functions in their ``formatter`` specializations. Format string compilation can
+generate more binary code compared to the default API and is only recommended in
+places where formatting is a performance bottleneck.
+
+.. doxygendefine:: FMT_COMPILE
+
+.. doxygenfunction:: operator""_cf()
+
+.. _color-api:
+
+Terminal Color and Text Style
+=============================
+
+``fmt/color.h`` provides support for terminal color and text style output.
+
+.. doxygenfunction:: print(const text_style &ts, const S &format_str, const Args&... args)
+
+.. doxygenfunction:: fg(detail::color_type)
+
+.. doxygenfunction:: bg(detail::color_type)
+
+.. doxygenfunction:: styled(const T& value, text_style ts)
+
+.. _os-api:
+
+System APIs
+===========
+
+.. doxygenclass:: fmt::ostream
+   :members:
+
+.. doxygenfunction:: fmt::windows_error
+   :members:
+
+.. _ostream-api:
+
+``std::ostream`` Support
+========================
+
+``fmt/ostream.h`` provides ``std::ostream`` support including formatting of
+user-defined types that have an overloaded insertion operator (``operator<<``).
+In order to make a type formattable via ``std::ostream`` you should provide a
+``formatter`` specialization inherited from ``ostream_formatter``::
+
+  #include <fmt/ostream.h>
+
+  struct date {
+    int year, month, day;
+
+    friend std::ostream& operator<<(std::ostream& os, const date& d) {
+      return os << d.year << '-' << d.month << '-' << d.day;
+    }
+  };
+
+  template <> struct fmt::formatter<date> : ostream_formatter {};
+
+  std::string s = fmt::format("The date is {}", date{2012, 12, 9});
+  // s == "The date is 2012-12-9"
+
+.. doxygenfunction:: streamed(const T &)
+
+.. doxygenfunction:: print(std::ostream &os, format_string<T...> fmt, T&&... args)
+
+.. _printf-api:
+
+``printf`` Formatting
+=====================
+
+The header ``fmt/printf.h`` provides ``printf``-like formatting functionality.
+The following functions use `printf format string syntax
+<https://pubs.opengroup.org/onlinepubs/009695399/functions/fprintf.html>`_ with
+the POSIX extension for positional arguments. Unlike their standard
+counterparts, the ``fmt`` functions are type-safe and throw an exception if an
+argument type doesn't match its format specification.
+
+.. doxygenfunction:: printf(const S &format_str, const T&... args)
+
+.. doxygenfunction:: fprintf(std::FILE *f, const S &fmt, const T&... args) -> int
+
+.. doxygenfunction:: sprintf(const S&, const T&...)
+
+.. _xchar-api:
+
+``wchar_t`` Support
+===================
+
+The optional header ``fmt/xchar.h`` provides support for ``wchar_t`` and exotic
+character types.
+
+.. doxygenstruct:: fmt::is_char
+
+.. doxygentypedef:: fmt::wstring_view
+
+.. doxygentypedef:: fmt::wformat_context
+
+.. doxygenfunction:: fmt::to_wstring(const T &value)
+
+Compatibility with C++20 ``std::format``
+========================================
+
+{fmt} implements nearly all of the `C++20 formatting library
+<https://en.cppreference.com/w/cpp/utility/format>`_ with the following
+differences:
+
+* Names are defined in the ``fmt`` namespace instead of ``std`` to avoid
+  collisions with standard library implementations.
+* Width calculation doesn't use grapheme clusterization. The latter has been
+  implemented in a separate branch but hasn't been integrated yet.
+* Most C++20 chrono types are not supported yet.

externals/fmt/doc/html/_sources/contents.rst.txt

@@ -0,0 +1,10 @@
+########
+Contents
+########
+
+.. toctree::
+   :maxdepth: 2
+
+   usage
+   api
+   syntax

externals/fmt/doc/html/_sources/index.rst.txt

@@ -0,0 +1,198 @@
+Overview
+========
+
+**{fmt}** is an open-source formatting library providing a fast and safe
+alternative to C stdio and C++ iostreams.
+
+.. raw:: html
+
+   <div class="panel panel-default">
+     <div class="panel-heading">What users say:</div>
+     <div class="panel-body">
+       Thanks for creating this library. It’s been a hole in C++ for
+       a long time. I’ve used both <code>boost::format</code> and
+       <code>loki::SPrintf</code>, and neither felt like the right answer.
+       This does.
+     </div>
+   </div>
+
+.. _format-api-intro:
+
+Format API
+----------
+
+The format API is similar in spirit to the C ``printf`` family of function but
+is safer, simpler and several times `faster
+<https://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_
+than common standard library implementations.
+The `format string syntax <syntax.html>`_ is similar to the one used by
+`str.format <https://docs.python.org/3/library/stdtypes.html#str.format>`_ in
+Python:
+
+.. code:: c++
+
+  std::string s = fmt::format("The answer is {}.", 42);
+  
+The ``fmt::format`` function returns a string "The answer is 42.". You can use
+``fmt::memory_buffer`` to avoid constructing ``std::string``:
+
+.. code:: c++
+
+  auto out = fmt::memory_buffer();
+  fmt::format_to(std::back_inserter(out),
+            "For a moment, {} happened.", "nothing");
+  auto data = out.data(); // pointer to the formatted data
+  auto size = out.size(); // size of the formatted data
+
+The ``fmt::print`` function performs formatting and writes the result to a stream:
+
+.. code:: c++
+
+  fmt::print(stderr, "System error code = {}\n", errno);
+
+If you omit the file argument the function will print to ``stdout``:
+
+.. code:: c++
+
+  fmt::print("Don't {}\n", "panic");
+
+The format API also supports positional arguments useful for localization:
+
+.. code:: c++
+
+  fmt::print("I'd rather be {1} than {0}.", "right", "happy");
+
+You can pass named arguments with ``fmt::arg``:
+
+.. code:: c++
+
+  fmt::print("Hello, {name}! The answer is {number}. Goodbye, {name}.",
+             fmt::arg("name", "World"), fmt::arg("number", 42));
+
+If your compiler supports C++11 user-defined literals, the suffix ``_a`` offers 
+an alternative, slightly terser syntax for named arguments:
+
+.. code:: c++
+
+  using namespace fmt::literals;
+  fmt::print("Hello, {name}! The answer is {number}. Goodbye, {name}.",
+             "name"_a="World", "number"_a=42);
+
+.. _safety:
+
+Safety
+------
+
+The library is fully type safe, automatic memory management prevents buffer
+overflow, errors in format strings are reported using exceptions or at compile
+time. For example, the code
+
+.. code:: c++
+
+  fmt::format("The answer is {:d}", "forty-two");
+
+throws the ``format_error`` exception because the argument ``"forty-two"`` is a
+string while the format code ``d`` only applies to integers.
+
+The code
+
+.. code:: c++
+
+  format(FMT_STRING("The answer is {:d}"), "forty-two");
+
+reports a compile-time error on compilers that support relaxed ``constexpr``.
+See `here <api.html#compile-time-format-string-checks>`_ for details.
+
+The following code
+
+.. code:: c++
+
+  fmt::format("Cyrillic letter {}", L'\x42e');
+  
+produces a compile-time error because wide character ``L'\x42e'`` cannot be
+formatted into a narrow string. For comparison, writing a wide character to
+``std::ostream`` results in its numeric value being written to the stream
+(i.e. 1070 instead of letter 'ю' which is represented by ``L'\x42e'`` if we
+use Unicode) which is rarely desirable.
+
+Compact Binary Code
+-------------------
+
+The library produces compact per-call compiled code. For example
+(`godbolt <https://godbolt.org/g/TZU4KF>`_),
+
+.. code:: c++
+
+   #include <fmt/core.h>
+
+   int main() {
+     fmt::print("The answer is {}.", 42);
+   }
+
+compiles to just
+
+.. code:: asm
+
+   main: # @main
+     sub rsp, 24
+     mov qword ptr [rsp], 42
+     mov rcx, rsp
+     mov edi, offset .L.str
+     mov esi, 17
+     mov edx, 1
+     call fmt::v7::vprint(fmt::v7::basic_string_view<char>, fmt::v7::format_args)
+     xor eax, eax
+     add rsp, 24
+     ret
+   .L.str:
+     .asciz "The answer is {}."
+
+.. _portability:
+
+Portability
+-----------
+
+The library is highly portable and relies only on a small set of C++11 features:
+
+* variadic templates
+* type traits
+* rvalue references
+* decltype
+* trailing return types
+* deleted functions
+* alias templates
+
+These are available in GCC 4.8, Clang 3.4, MSVC 19.0 (2015) and more recent
+compiler version. For older compilers use {fmt} `version 4.x
+<https://github.com/fmtlib/fmt/releases/tag/4.1.0>`_ which is maintained and
+only requires C++98.
+
+The output of all formatting functions is consistent across platforms.
+For example,
+
+.. code::
+
+  fmt::print("{}", std::numeric_limits<double>::infinity());
+
+always prints ``inf`` while the output of ``printf`` is platform-dependent.
+
+.. _ease-of-use:
+
+Ease of Use
+-----------
+
+{fmt} has a small self-contained code base with the core library consisting of
+just three header files and no external dependencies.
+A permissive MIT `license <https://github.com/fmtlib/fmt#license>`_ allows
+using the library both in open-source and commercial projects.
+
+`Learn more... <contents.html>`_
+
+.. raw:: html
+
+  <a class="btn btn-success" href="https://github.com/fmtlib/fmt">GitHub Repository</a>
+
+  <div class="section footer">
+    <iframe src="https://ghbtns.com/github-btn.html?user=fmtlib&amp;repo=fmt&amp;type=watch&amp;count=true"
+            class="github-btn" width="100" height="20"></iframe>
+  </div>

externals/fmt/doc/html/_sources/syntax.rst.txt

@@ -0,0 +1,514 @@
+.. _syntax:
+
+********************
+Format String Syntax
+********************
+
+Formatting functions such as :ref:`fmt::format() <format>` and
+:ref:`fmt::print() <print>` use the same format string syntax described in this
+section.
+
+Format strings contain "replacement fields" surrounded by curly braces ``{}``.
+Anything that is not contained in braces is considered literal text, which is
+copied unchanged to the output.  If you need to include a brace character in the
+literal text, it can be escaped by doubling: ``{{`` and ``}}``.
+
+The grammar for a replacement field is as follows:
+
+.. productionlist:: sf
+   replacement_field: "{" [`arg_id`] [":" (`format_spec` | `chrono_format_spec`)] "}"
+   arg_id: `integer` | `identifier`
+   integer: `digit`+
+   digit: "0"..."9"
+   identifier: `id_start` `id_continue`*
+   id_start: "a"..."z" | "A"..."Z" | "_"
+   id_continue: `id_start` | `digit`
+
+In less formal terms, the replacement field can start with an *arg_id*
+that specifies the argument whose value is to be formatted and inserted into
+the output instead of the replacement field.
+The *arg_id* is optionally followed by a *format_spec*, which is preceded by a
+colon ``':'``.  These specify a non-default format for the replacement value.
+
+See also the :ref:`formatspec` section.
+
+If the numerical arg_ids in a format string are 0, 1, 2, ... in sequence,
+they can all be omitted (not just some) and the numbers 0, 1, 2, ... will be
+automatically inserted in that order.
+
+Named arguments can be referred to by their names or indices.
+
+Some simple format string examples::
+
+   "First, thou shalt count to {0}" // References the first argument
+   "Bring me a {}"                  // Implicitly references the first argument
+   "From {} to {}"                  // Same as "From {0} to {1}"
+
+The *format_spec* field contains a specification of how the value should be
+presented, including such details as field width, alignment, padding, decimal
+precision and so on.  Each value type can define its own "formatting
+mini-language" or interpretation of the *format_spec*.
+
+Most built-in types support a common formatting mini-language, which is
+described in the next section.
+
+A *format_spec* field can also include nested replacement fields in certain
+positions within it. These nested replacement fields can contain only an
+argument id; format specifications are not allowed. This allows the formatting
+of a value to be dynamically specified.
+
+See the :ref:`formatexamples` section for some examples.
+
+.. _formatspec:
+
+Format Specification Mini-Language
+==================================
+
+"Format specifications" are used within replacement fields contained within a
+format string to define how individual values are presented (see
+:ref:`syntax`).  Each formattable type may define how the format
+specification is to be interpreted.
+
+Most built-in types implement the following options for format specifications,
+although some of the formatting options are only supported by the numeric types.
+
+The general form of a *standard format specifier* is:
+
+.. productionlist:: sf
+   format_spec: [[`fill`]`align`][`sign`]["#"]["0"][`width`]["." `precision`]["L"][`type`]
+   fill: <a character other than '{' or '}'>
+   align: "<" | ">" | "^"
+   sign: "+" | "-" | " "
+   width: `integer` | "{" [`arg_id`] "}"
+   precision: `integer` | "{" [`arg_id`] "}"
+   type: "a" | "A" | "b" | "B" | "c" | "d" | "e" | "E" | "f" | "F" | "g" | "G" |
+       : "o" | "p" | "s" | "x" | "X"
+
+The *fill* character can be any Unicode code point other than ``'{'`` or
+``'}'``. The presence of a fill character is signaled by the character following
+it, which must be one of the alignment options. If the second character of
+*format_spec* is not a valid alignment option, then it is assumed that both the
+fill character and the alignment option are absent.
+
+The meaning of the various alignment options is as follows:
+
++---------+----------------------------------------------------------+
+| Option  | Meaning                                                  |
++=========+==========================================================+
+| ``'<'`` | Forces the field to be left-aligned within the available |
+|         | space (this is the default for most objects).            |
++---------+----------------------------------------------------------+
+| ``'>'`` | Forces the field to be right-aligned within the          |
+|         | available space (this is the default for numbers).       |
++---------+----------------------------------------------------------+
+| ``'^'`` | Forces the field to be centered within the available     |
+|         | space.                                                   |
++---------+----------------------------------------------------------+
+
+Note that unless a minimum field width is defined, the field width will always
+be the same size as the data to fill it, so that the alignment option has no
+meaning in this case.
+
+The *sign* option is only valid for number types, and can be one of the
+following:
+
++---------+------------------------------------------------------------+
+| Option  | Meaning                                                    |
++=========+============================================================+
+| ``'+'`` | indicates that a sign should be used for both              |
+|         | nonnegative as well as negative numbers.                   |
++---------+------------------------------------------------------------+
+| ``'-'`` | indicates that a sign should be used only for negative     |
+|         | numbers (this is the default behavior).                    |
++---------+------------------------------------------------------------+
+| space   | indicates that a leading space should be used on           |
+|         | nonnegative numbers, and a minus sign on negative numbers. |
++---------+------------------------------------------------------------+
+
+The ``'#'`` option causes the "alternate form" to be used for the
+conversion.  The alternate form is defined differently for different
+types.  This option is only valid for integer and floating-point types.
+For integers, when binary, octal, or hexadecimal output is used, this
+option adds the prefix respective ``"0b"`` (``"0B"``), ``"0"``, or
+``"0x"`` (``"0X"``) to the output value.  Whether the prefix is
+lower-case or upper-case is determined by the case of the type
+specifier, for example, the prefix ``"0x"`` is used for the type ``'x'``
+and ``"0X"`` is used for ``'X'``.  For floating-point numbers the
+alternate form causes the result of the conversion to always contain a
+decimal-point character, even if no digits follow it. Normally, a
+decimal-point character appears in the result of these conversions
+only if a digit follows it. In addition, for ``'g'`` and ``'G'``
+conversions, trailing zeros are not removed from the result.
+
+.. ifconfig:: False
+
+   The ``','`` option signals the use of a comma for a thousands separator.
+   For a locale aware separator, use the ``'L'`` integer presentation type
+   instead.
+
+*width* is a decimal integer defining the minimum field width.  If not
+specified, then the field width will be determined by the content.
+
+Preceding the *width* field by a zero (``'0'``) character enables sign-aware
+zero-padding for numeric types. It forces the padding to be placed after the
+sign or base (if any) but before the digits. This is used for printing fields in
+the form '+000000120'. This option is only valid for numeric types and it has no
+effect on formatting of infinity and NaN.
+
+The *precision* is a decimal number indicating how many digits should be
+displayed after the decimal point for a floating-point value formatted with
+``'f'`` and ``'F'``, or before and after the decimal point for a floating-point
+value formatted with ``'g'`` or ``'G'``.  For non-number types the field
+indicates the maximum field size - in other words, how many characters will be
+used from the field content. The *precision* is not allowed for integer,
+character, Boolean, and pointer values. Note that a C string must be
+null-terminated even if precision is specified.
+
+The ``'L'`` option uses the current locale setting to insert the appropriate
+number separator characters. This option is only valid for numeric types.
+
+Finally, the *type* determines how the data should be presented.
+
+The available string presentation types are:
+
++---------+----------------------------------------------------------+
+| Type    | Meaning                                                  |
++=========+==========================================================+
+| ``'s'`` | String format. This is the default type for strings and  |
+|         | may be omitted.                                          |
++---------+----------------------------------------------------------+
+| none    | The same as ``'s'``.                                     |
++---------+----------------------------------------------------------+
+
+The available character presentation types are:
+
++---------+----------------------------------------------------------+
+| Type    | Meaning                                                  |
++=========+==========================================================+
+| ``'c'`` | Character format. This is the default type for           |
+|         | characters and may be omitted.                           |
++---------+----------------------------------------------------------+
+| none    | The same as ``'c'``.                                     |
++---------+----------------------------------------------------------+
+
+The available integer presentation types are:
+
++---------+----------------------------------------------------------+
+| Type    | Meaning                                                  |
++=========+==========================================================+
+| ``'b'`` | Binary format. Outputs the number in base 2. Using the   |
+|         | ``'#'`` option with this type adds the prefix ``"0b"``   |
+|         | to the output value.                                     |
++---------+----------------------------------------------------------+
+| ``'B'`` | Binary format. Outputs the number in base 2. Using the   |
+|         | ``'#'`` option with this type adds the prefix ``"0B"``   |
+|         | to the output value.                                     |
++---------+----------------------------------------------------------+
+| ``'c'`` | Character format. Outputs the number as a character.     |
++---------+----------------------------------------------------------+
+| ``'d'`` | Decimal integer. Outputs the number in base 10.          |
++---------+----------------------------------------------------------+
+| ``'o'`` | Octal format. Outputs the number in base 8.              |
++---------+----------------------------------------------------------+
+| ``'x'`` | Hex format. Outputs the number in base 16, using         |
+|         | lower-case letters for the digits above 9. Using the     |
+|         | ``'#'`` option with this type adds the prefix ``"0x"``   |
+|         | to the output value.                                     |
++---------+----------------------------------------------------------+
+| ``'X'`` | Hex format. Outputs the number in base 16, using         |
+|         | upper-case letters for the digits above 9. Using the     |
+|         | ``'#'`` option with this type adds the prefix ``"0X"``   |
+|         | to the output value.                                     |
++---------+----------------------------------------------------------+
+| none    | The same as ``'d'``.                                     |
++---------+----------------------------------------------------------+
+
+Integer presentation types can also be used with character and Boolean values.
+Boolean values are formatted using textual representation, either ``true`` or
+``false``, if the presentation type is not specified.
+
+The available presentation types for floating-point values are:
+
++---------+----------------------------------------------------------+
+| Type    | Meaning                                                  |
++=========+==========================================================+
+| ``'a'`` | Hexadecimal floating point format. Prints the number in  |
+|         | base 16 with prefix ``"0x"`` and lower-case letters for  |
+|         | digits above 9. Uses ``'p'`` to indicate the exponent.   |
++---------+----------------------------------------------------------+
+| ``'A'`` | Same as ``'a'`` except it uses upper-case letters for    |
+|         | the prefix, digits above 9 and to indicate the exponent. |
++---------+----------------------------------------------------------+
+| ``'e'`` | Exponent notation. Prints the number in scientific       |
+|         | notation using the letter 'e' to indicate the exponent.  |
++---------+----------------------------------------------------------+
+| ``'E'`` | Exponent notation. Same as ``'e'`` except it uses an     |
+|         | upper-case ``'E'`` as the separator character.           |
++---------+----------------------------------------------------------+
+| ``'f'`` | Fixed point. Displays the number as a fixed-point        |
+|         | number.                                                  |
++---------+----------------------------------------------------------+
+| ``'F'`` | Fixed point. Same as ``'f'``, but converts ``nan`` to    |
+|         | ``NAN`` and ``inf`` to ``INF``.                          |
++---------+----------------------------------------------------------+
+| ``'g'`` | General format.  For a given precision ``p >= 1``,       |
+|         | this rounds the number to ``p`` significant digits and   |
+|         | then formats the result in either fixed-point format     |
+|         | or in scientific notation, depending on its magnitude.   |
+|         |                                                          |
+|         | A precision of ``0`` is treated as equivalent to a       |
+|         | precision of ``1``.                                      |
++---------+----------------------------------------------------------+
+| ``'G'`` | General format. Same as ``'g'`` except switches to       |
+|         | ``'E'`` if the number gets too large. The                |
+|         | representations of infinity and NaN are uppercased, too. |
++---------+----------------------------------------------------------+
+| none    | Similar to ``'g'``, except that the default precision is |
+|         | as high as needed to represent the particular value.     |
++---------+----------------------------------------------------------+
+
+.. ifconfig:: False
+
+   +---------+----------------------------------------------------------+
+   |         | The precise rules are as follows: suppose that the       |
+   |         | result formatted with presentation type ``'e'`` and      |
+   |         | precision ``p-1`` would have exponent ``exp``.  Then     |
+   |         | if ``-4 <= exp < p``, the number is formatted            |
+   |         | with presentation type ``'f'`` and precision             |
+   |         | ``p-1-exp``.  Otherwise, the number is formatted         |
+   |         | with presentation type ``'e'`` and precision ``p-1``.    |
+   |         | In both cases insignificant trailing zeros are removed   |
+   |         | from the significand, and the decimal point is also      |
+   |         | removed if there are no remaining digits following it.   |
+   |         |                                                          |
+   |         | Positive and negative infinity, positive and negative    |
+   |         | zero, and nans, are formatted as ``inf``, ``-inf``,      |
+   |         | ``0``, ``-0`` and ``nan`` respectively, regardless of    |
+   |         | the precision.                                           |
+   |         |                                                          |
+   +---------+----------------------------------------------------------+
+
+The available presentation types for pointers are:
+
++---------+----------------------------------------------------------+
+| Type    | Meaning                                                  |
++=========+==========================================================+
+| ``'p'`` | Pointer format. This is the default type for             |
+|         | pointers and may be omitted.                             |
++---------+----------------------------------------------------------+
+| none    | The same as ``'p'``.                                     |
++---------+----------------------------------------------------------+
+
+.. _chrono-specs:
+
+Chrono Format Specifications
+============================
+
+Format specifications for chrono types and ``std::tm`` have the following
+syntax:
+
+.. productionlist:: sf
+   chrono_format_spec: [[`fill`]`align`][`width`]["." `precision`][`chrono_specs`]
+   chrono_specs: [`chrono_specs`] `conversion_spec` | `chrono_specs` `literal_char`
+   conversion_spec: "%" [`modifier`] `chrono_type`
+   literal_char: <a character other than '{', '}' or '%'>
+   modifier: "E" | "O"
+   chrono_type: "a" | "A" | "b" | "B" | "c" | "C" | "d" | "D" | "e" | "F" |
+              : "g" | "G" | "h" | "H" | "I" | "j" | "m" | "M" | "n" | "p" |
+              : "q" | "Q" | "r" | "R" | "S" | "t" | "T" | "u" | "U" | "V" |
+              : "w" | "W" | "x" | "X" | "y" | "Y" | "z" | "Z" | "%"
+
+Literal chars are copied unchanged to the output. Precision is valid only for
+``std::chrono::duration`` types with a floating-point representation type.
+
+The available presentation types (*chrono_type*) for chrono durations and time
+points are:
+
++---------+--------------------------------------------------------------------+
+| Type    | Meaning                                                            |
++=========+====================================================================+
+| ``'H'`` | The hour (24-hour clock) as a decimal number. If the result is a   |
+|         | single digit, it is prefixed with 0. The modified command ``%OH``  |
+|         | produces the locale's alternative representation.                  |
++---------+--------------------------------------------------------------------+
+| ``'M'`` | The minute as a decimal number. If the result is a single digit,   |
+|         | it is prefixed with 0. The modified command ``%OM`` produces the   |
+|         | locale's alternative representation.                               |
++---------+--------------------------------------------------------------------+
+| ``'S'`` | Seconds as a decimal number. If the number of seconds is less than |
+|         | 10, the result is prefixed with 0. If the precision of the input   |
+|         | cannot be exactly represented with seconds, then the format is a   |
+|         | decimal floating-point number with a fixed format and a precision  |
+|         | matching that of the precision of the input (or to a microseconds  |
+|         | precision if the conversion to floating-point decimal seconds      |
+|         | cannot be made within 18 fractional digits). The character for the |
+|         | decimal point is localized according to the locale. The modified   |
+|         | command ``%OS`` produces the locale's alternative representation.  |
++---------+--------------------------------------------------------------------+
+
+Specifiers that have a calendaric component such as ``'d'`` (the day of month)
+are valid only for ``std::tm`` and not durations or time points.
+
+.. range-specs:
+
+Range Format Specifications
+===========================
+
+Format specifications for range types have the following syntax:
+
+.. productionlist:: sf
+   range_format_spec: [":" [`underlying_spec`]]
+
+The `underlying_spec` is parsed based on the formatter of the range's
+reference type.
+
+By default, a range of characters or strings is printed escaped and quoted. But
+if any `underlying_spec` is provided (even if it is empty), then the characters
+or strings are printed according to the provided specification.
+
+Examples::
+
+  fmt::format("{}", std::vector{10, 20, 30});
+  // Result: [10, 20, 30]
+  fmt::format("{::#x}", std::vector{10, 20, 30});
+  // Result: [0xa, 0x14, 0x13]
+  fmt::format("{}", vector{'h', 'e', 'l', 'l', 'o'});
+  // Result: ['h', 'e', 'l', 'l', 'o']
+  fmt::format("{::}", vector{'h', 'e', 'l', 'l', 'o'});
+  // Result: [h, e, l, l, o]
+  fmt::format("{::d}", vector{'h', 'e', 'l', 'l', 'o'});
+  // Result: [104, 101, 108, 108, 111]
+
+.. _formatexamples:
+
+Format Examples
+===============
+
+This section contains examples of the format syntax and comparison with
+the printf formatting.
+
+In most of the cases the syntax is similar to the printf formatting, with the
+addition of the ``{}`` and with ``:`` used instead of ``%``.
+For example, ``"%03.2f"`` can be translated to ``"{:03.2f}"``.
+
+The new format syntax also supports new and different options, shown in the
+following examples.
+
+Accessing arguments by position::
+
+   fmt::format("{0}, {1}, {2}", 'a', 'b', 'c');
+   // Result: "a, b, c"
+   fmt::format("{}, {}, {}", 'a', 'b', 'c');
+   // Result: "a, b, c"
+   fmt::format("{2}, {1}, {0}", 'a', 'b', 'c');
+   // Result: "c, b, a"
+   fmt::format("{0}{1}{0}", "abra", "cad");  // arguments' indices can be repeated
+   // Result: "abracadabra"
+
+Aligning the text and specifying a width::
+
+   fmt::format("{:<30}", "left aligned");
+   // Result: "left aligned                  "
+   fmt::format("{:>30}", "right aligned");
+   // Result: "                 right aligned"
+   fmt::format("{:^30}", "centered");
+   // Result: "           centered           "
+   fmt::format("{:*^30}", "centered");  // use '*' as a fill char
+   // Result: "***********centered***********"
+
+Dynamic width::
+
+   fmt::format("{:<{}}", "left aligned", 30);
+   // Result: "left aligned                  "
+
+Dynamic precision::
+
+   fmt::format("{:.{}f}", 3.14, 1);
+   // Result: "3.1"
+
+Replacing ``%+f``, ``%-f``, and ``% f`` and specifying a sign::
+
+   fmt::format("{:+f}; {:+f}", 3.14, -3.14);  // show it always
+   // Result: "+3.140000; -3.140000"
+   fmt::format("{: f}; {: f}", 3.14, -3.14);  // show a space for positive numbers
+   // Result: " 3.140000; -3.140000"
+   fmt::format("{:-f}; {:-f}", 3.14, -3.14);  // show only the minus -- same as '{:f}; {:f}'
+   // Result: "3.140000; -3.140000"
+
+Replacing ``%x`` and ``%o`` and converting the value to different bases::
+
+   fmt::format("int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}", 42);
+   // Result: "int: 42;  hex: 2a;  oct: 52; bin: 101010"
+   // with 0x or 0 or 0b as prefix:
+   fmt::format("int: {0:d};  hex: {0:#x};  oct: {0:#o};  bin: {0:#b}", 42);
+   // Result: "int: 42;  hex: 0x2a;  oct: 052;  bin: 0b101010"
+
+Padded hex byte with prefix and always prints both hex characters::
+
+   fmt::format("{:#04x}", 0);
+   // Result: "0x00"
+
+Box drawing using Unicode fill::
+
+   fmt::print(
+     "┌{0:─^{2}}┐\n"
+     "│{1: ^{2}}│\n"
+     "└{0:─^{2}}┘\n", "", "Hello, world!", 20);
+
+prints::
+
+   ┌────────────────────┐
+   │   Hello, world!    │
+   └────────────────────┘
+
+Using type-specific formatting::
+
+   #include <fmt/chrono.h>
+
+   auto t = tm();
+   t.tm_year = 2010 - 1900;
+   t.tm_mon = 7;
+   t.tm_mday = 4;
+   t.tm_hour = 12;
+   t.tm_min = 15;
+   t.tm_sec = 58;
+   fmt::print("{:%Y-%m-%d %H:%M:%S}", t);
+   // Prints: 2010-08-04 12:15:58
+
+Using the comma as a thousands separator::
+
+   #include <fmt/format.h>
+
+   auto s = fmt::format(std::locale("en_US.UTF-8"), "{:L}", 1234567890);
+   // s == "1,234,567,890"
+
+.. ifconfig:: False
+
+   Nesting arguments and more complex examples::
+
+      >>> for align, text in zip('<^>', ['left', 'center', 'right']):
+      ...     '{0:{fill}{align}16}") << text, fill=align, align=align)
+      ...
+      'left<<<<<<<<<<<<'
+      '^^^^^center^^^^^'
+      '>>>>>>>>>>>right'
+      >>>
+      >>> octets = [192, 168, 0, 1]
+      Format("{:02X}{:02X}{:02X}{:02X}") << *octets)
+      'C0A80001'
+      >>> int(_, 16)
+      3232235521
+      >>>
+      >>> width = 5
+      >>> for num in range(5,12):
+      ...     for base in 'dXob':
+      ...         print('{0:{width}{base}}") << num, base=base, width=width), end=' ')
+      ...     print()
+      ...
+          5     5     5   101
+          6     6     6   110
+          7     7     7   111
+          8     8    10  1000
+          9     9    11  1001
+         10     A    12  1010
+         11     B    13  1011

externals/fmt/doc/html/_sources/usage.rst.txt

@@ -0,0 +1,212 @@
+*****
+Usage
+*****
+
+To use the {fmt} library, add :file:`fmt/core.h`, :file:`fmt/format.h`,
+:file:`fmt/format-inl.h`, :file:`src/format.cc` and optionally other headers
+from a `release archive <https://github.com/fmtlib/fmt/releases/latest>`_ or
+the `Git repository <https://github.com/fmtlib/fmt>`_ to your project.
+Alternatively, you can :ref:`build the library with CMake <building>`.
+
+.. _building:
+
+Building the Library
+====================
+
+The included `CMake build script`__ can be used to build the fmt
+library on a wide range of platforms. CMake is freely available for
+download from https://www.cmake.org/download/.
+
+__ https://github.com/fmtlib/fmt/blob/master/CMakeLists.txt
+
+CMake works by generating native makefiles or project files that can
+be used in the compiler environment of your choice. The typical
+workflow starts with::
+
+  mkdir build          # Create a directory to hold the build output.
+  cd build
+  cmake ..  # Generate native build scripts.
+
+where :file:`{<path/to/fmt>}` is a path to the ``fmt`` repository.
+
+If you are on a \*nix system, you should now see a Makefile in the
+current directory. Now you can build the library by running :command:`make`.
+
+Once the library has been built you can invoke :command:`make test` to run
+the tests.
+
+You can control generation of the make ``test`` target with the ``FMT_TEST``
+CMake option. This can be useful if you include fmt as a subdirectory in
+your project but don't want to add fmt's tests to your ``test`` target.
+
+If you use Windows and have Visual Studio installed, a :file:`FMT.sln`
+file and several :file:`.vcproj` files will be created. You can then build them
+using Visual Studio or msbuild.
+
+On Mac OS X with Xcode installed, an :file:`.xcodeproj` file will be generated.
+
+To build a `shared library`__ set the ``BUILD_SHARED_LIBS`` CMake variable to
+``TRUE``::
+
+  cmake -DBUILD_SHARED_LIBS=TRUE ...
+
+__ https://en.wikipedia.org/wiki/Library_%28computing%29#Shared_libraries
+
+
+To build a `static library` with position independent code (required if the main
+consumer of the fmt library is a shared library i.e. a Python extension) set the
+``CMAKE_POSITION_INDEPENDENT_CODE`` CMake variable to ``TRUE``::
+
+  cmake -DCMAKE_POSITION_INDEPENDENT_CODE=TRUE ...
+
+
+Installing the Library
+======================
+
+After building the library you can install it on a Unix-like system by running
+:command:`sudo make install`.
+
+Usage with CMake
+================
+
+You can add the ``fmt`` library directory into your project and include it in
+your ``CMakeLists.txt`` file::
+
+   add_subdirectory(fmt)
+
+or
+
+::
+
+   add_subdirectory(fmt EXCLUDE_FROM_ALL)
+
+to exclude it from ``make``, ``make all``, or ``cmake --build .``.
+
+You can detect and use an installed version of {fmt} as follows::
+
+   find_package(fmt)
+   target_link_libraries(<your-target> fmt::fmt)
+
+Setting up your target to use a header-only version of ``fmt`` is equally easy::
+
+   target_link_libraries(<your-target> PRIVATE fmt::fmt-header-only)
+
+Usage with build2
+=================
+
+You can use `build2 <https://build2.org>`_, a dependency manager and a
+build-system combined, to use ``fmt``.
+
+Currently this package is available in these package repositories:
+
+- **https://cppget.org/fmt/** for released and published versions.
+- `The git repository with the sources of the build2 package of fmt <https://github.com/build2-packaging/fmt.git>`_
+  for unreleased or custom revisions of ``fmt``.
+
+**Usage:**
+
+- ``build2`` package name: ``fmt``
+- Library target name : ``lib{fmt}``
+
+For example, to make your ``build2`` project depend on ``fmt``:
+
+- Add one of the repositories to your configurations, or in your
+  ``repositories.manifest``, if not already there::
+
+    :
+    role: prerequisite
+    location: https://pkg.cppget.org/1/stable
+
+- Add this package as a dependency to your ``./manifest`` file
+  (example for ``v7.0.x``)::
+
+    depends: fmt ~7.0.0
+
+- Import the target and use it as a prerequisite to your own target
+  using `fmt` in the appropriate ``buildfile``::
+
+    import fmt = fmt%lib{fmt}
+    lib{mylib} : cxx{**} ... $fmt
+
+Then build your project as usual with `b` or `bdep update`.
+
+For ``build2`` newcomers or to get more details and use cases, you can read the
+``build2``
+`toolchain introduction <https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml>`_.
+
+Building the Documentation
+==========================
+
+To build the documentation you need the following software installed on your
+system:
+
+* `Python <https://www.python.org/>`_ with pip and virtualenv
+* `Doxygen <http://www.stack.nl/~dimitri/doxygen/>`_
+* `Less <http://lesscss.org/>`_ with ``less-plugin-clean-css``.
+  Ubuntu doesn't package the ``clean-css`` plugin so you should use ``npm``
+  instead of ``apt`` to install both ``less`` and the plugin::
+
+    sudo npm install -g less less-plugin-clean-css.
+
+First generate makefiles or project files using CMake as described in
+the previous section. Then compile the ``doc`` target/project, for example::
+
+  make doc
+
+This will generate the HTML documentation in ``doc/html``.
+
+Conda
+=====
+
+fmt can be installed on Linux, macOS and Windows with
+`Conda <https://docs.conda.io/en/latest/>`__, using its
+`conda-forge <https://conda-forge.org>`__
+`package <https://github.com/conda-forge/fmt-feedstock>`__, as follows::
+
+  conda install -c conda-forge fmt
+
+Vcpkg
+=====
+
+You can download and install fmt using the `vcpkg
+<https://github.com/Microsoft/vcpkg>`__ dependency manager::
+
+  git clone https://github.com/Microsoft/vcpkg.git
+  cd vcpkg
+  ./bootstrap-vcpkg.sh
+  ./vcpkg integrate install
+  ./vcpkg install fmt
+
+The fmt port in vcpkg is kept up to date by Microsoft team members and community
+contributors. If the version is out of date, please `create an issue or pull
+request <https://github.com/Microsoft/vcpkg>`__ on the vcpkg repository.
+
+LHelper
+=======
+
+You can download and install fmt using
+`lhelper <https://github.com/franko/lhelper>`__ dependency manager::
+
+  lhelper activate <some-environment>
+  lhelper install fmt
+
+All the recipes for lhelper are kept in the
+`lhelper's recipe <https://github.com/franko/lhelper-recipes>`__ repository.
+
+Android NDK
+===========
+
+fmt provides `Android.mk file`__ that can be used to build the library
+with `Android NDK <https://developer.android.com/tools/sdk/ndk/index.html>`_.
+For an example of using fmt with Android NDK, see the
+`android-ndk-example <https://github.com/fmtlib/android-ndk-example>`_
+repository.
+
+__ https://github.com/fmtlib/fmt/blob/master/support/Android.mk
+
+Homebrew
+========
+
+fmt can be installed on OS X using `Homebrew <https://brew.sh/>`_::
+
+  brew install fmt

externals/fmt/doc/html/_static/basic.css

@@ -0,0 +1,856 @@
+/*
+ * basic.css
+ * ~~~~~~~~~
+ *
+ * Sphinx stylesheet -- basic theme.
+ *
+ * :copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/* -- main layout ----------------------------------------------------------- */
+
+div.clearer {
+    clear: both;
+}
+
+div.section::after {
+    display: block;
+    content: '';
+    clear: left;
+}
+
+/* -- relbar ---------------------------------------------------------------- */
+
+div.related {
+    width: 100%;
+    font-size: 90%;
+}
+
+div.related h3 {
+    display: none;
+}
+
+div.related ul {
+    margin: 0;
+    padding: 0 0 0 10px;
+    list-style: none;
+}
+
+div.related li {
+    display: inline;
+}
+
+div.related li.right {
+    float: right;
+    margin-right: 5px;
+}
+
+/* -- sidebar --------------------------------------------------------------- */
+
+div.sphinxsidebarwrapper {
+    padding: 10px 5px 0 10px;
+}
+
+div.sphinxsidebar {
+    float: left;
+    width: 230px;
+    margin-left: -100%;
+    font-size: 90%;
+    word-wrap: break-word;
+    overflow-wrap : break-word;
+}
+
+div.sphinxsidebar ul {
+    list-style: none;
+}
+
+div.sphinxsidebar ul ul,
+div.sphinxsidebar ul.want-points {
+    margin-left: 20px;
+    list-style: square;
+}
+
+div.sphinxsidebar ul ul {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+
+div.sphinxsidebar form {
+    margin-top: 10px;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #98dbcc;
+    font-family: sans-serif;
+    font-size: 1em;
+}
+
+div.sphinxsidebar #searchbox form.search {
+    overflow: hidden;
+}
+
+div.sphinxsidebar #searchbox input[type="text"] {
+    float: left;
+    width: 80%;
+    padding: 0.25em;
+    box-sizing: border-box;
+}
+
+div.sphinxsidebar #searchbox input[type="submit"] {
+    float: left;
+    width: 20%;
+    border-left: none;
+    padding: 0.25em;
+    box-sizing: border-box;
+}
+
+
+img {
+    border: 0;
+    max-width: 100%;
+}
+
+/* -- search page ----------------------------------------------------------- */
+
+ul.search {
+    margin: 10px 0 0 20px;
+    padding: 0;
+}
+
+ul.search li {
+    padding: 5px 0 5px 20px;
+    background-image: url(file.png);
+    background-repeat: no-repeat;
+    background-position: 0 7px;
+}
+
+ul.search li a {
+    font-weight: bold;
+}
+
+ul.search li div.context {
+    color: #888;
+    margin: 2px 0 0 30px;
+    text-align: left;
+}
+
+ul.keywordmatches li.goodmatch a {
+    font-weight: bold;
+}
+
+/* -- index page ------------------------------------------------------------ */
+
+table.contentstable {
+    width: 90%;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+table.contentstable p.biglink {
+    line-height: 150%;
+}
+
+a.biglink {
+    font-size: 1.3em;
+}
+
+span.linkdescr {
+    font-style: italic;
+    padding-top: 5px;
+    font-size: 90%;
+}
+
+/* -- general index --------------------------------------------------------- */
+
+table.indextable {
+    width: 100%;
+}
+
+table.indextable td {
+    text-align: left;
+    vertical-align: top;
+}
+
+table.indextable ul {
+    margin-top: 0;
+    margin-bottom: 0;
+    list-style-type: none;
+}
+
+table.indextable > tbody > tr > td > ul {
+    padding-left: 0em;
+}
+
+table.indextable tr.pcap {
+    height: 10px;
+}
+
+table.indextable tr.cap {
+    margin-top: 10px;
+    background-color: #f2f2f2;
+}
+
+img.toggler {
+    margin-right: 3px;
+    margin-top: 3px;
+    cursor: pointer;
+}
+
+div.modindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+div.genindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+/* -- domain module index --------------------------------------------------- */
+
+table.modindextable td {
+    padding: 2px;
+    border-collapse: collapse;
+}
+
+/* -- general body styles --------------------------------------------------- */
+
+div.body {
+    min-width: 450px;
+    max-width: 800px;
+}
+
+div.body p, div.body dd, div.body li, div.body blockquote {
+    -moz-hyphens: auto;
+    -ms-hyphens: auto;
+    -webkit-hyphens: auto;
+    hyphens: auto;
+}
+
+a.headerlink {
+    visibility: hidden;
+}
+
+a.brackets:before,
+span.brackets > a:before{
+    content: "[";
+}
+
+a.brackets:after,
+span.brackets > a:after {
+    content: "]";
+}
+
+h1:hover > a.headerlink,
+h2:hover > a.headerlink,
+h3:hover > a.headerlink,
+h4:hover > a.headerlink,
+h5:hover > a.headerlink,
+h6:hover > a.headerlink,
+dt:hover > a.headerlink,
+caption:hover > a.headerlink,
+p.caption:hover > a.headerlink,
+div.code-block-caption:hover > a.headerlink {
+    visibility: visible;
+}
+
+div.body p.caption {
+    text-align: inherit;
+}
+
+div.body td {
+    text-align: left;
+}
+
+.first {
+    margin-top: 0 !important;
+}
+
+p.rubric {
+    margin-top: 30px;
+    font-weight: bold;
+}
+
+img.align-left, .figure.align-left, object.align-left {
+    clear: left;
+    float: left;
+    margin-right: 1em;
+}
+
+img.align-right, .figure.align-right, object.align-right {
+    clear: right;
+    float: right;
+    margin-left: 1em;
+}
+
+img.align-center, .figure.align-center, object.align-center {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+img.align-default, .figure.align-default {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+.align-left {
+    text-align: left;
+}
+
+.align-center {
+    text-align: center;
+}
+
+.align-default {
+    text-align: center;
+}
+
+.align-right {
+    text-align: right;
+}
+
+/* -- sidebars -------------------------------------------------------------- */
+
+div.sidebar {
+    margin: 0 0 0.5em 1em;
+    border: 1px solid #ddb;
+    padding: 7px;
+    background-color: #ffe;
+    width: 40%;
+    float: right;
+    clear: right;
+    overflow-x: auto;
+}
+
+p.sidebar-title {
+    font-weight: bold;
+}
+
+div.admonition, div.topic, blockquote {
+    clear: left;
+}
+
+/* -- topics ---------------------------------------------------------------- */
+
+div.topic {
+    border: 1px solid #ccc;
+    padding: 7px;
+    margin: 10px 0 10px 0;
+}
+
+p.topic-title {
+    font-size: 1.1em;
+    font-weight: bold;
+    margin-top: 10px;
+}
+
+/* -- admonitions ----------------------------------------------------------- */
+
+div.admonition {
+    margin-top: 10px;
+    margin-bottom: 10px;
+    padding: 7px;
+}
+
+div.admonition dt {
+    font-weight: bold;
+}
+
+p.admonition-title {
+    margin: 0px 10px 5px 0px;
+    font-weight: bold;
+}
+
+div.body p.centered {
+    text-align: center;
+    margin-top: 25px;
+}
+
+/* -- content of sidebars/topics/admonitions -------------------------------- */
+
+div.sidebar > :last-child,
+div.topic > :last-child,
+div.admonition > :last-child {
+    margin-bottom: 0;
+}
+
+div.sidebar::after,
+div.topic::after,
+div.admonition::after,
+blockquote::after {
+    display: block;
+    content: '';
+    clear: both;
+}
+
+/* -- tables ---------------------------------------------------------------- */
+
+table.docutils {
+    margin-top: 10px;
+    margin-bottom: 10px;
+    border: 0;
+    border-collapse: collapse;
+}
+
+table.align-center {
+    margin-left: auto;
+    margin-right: auto;
+}
+
+table.align-default {
+    margin-left: auto;
+    margin-right: auto;
+}
+
+table caption span.caption-number {
+    font-style: italic;
+}
+
+table caption span.caption-text {
+}
+
+table.docutils td, table.docutils th {
+    padding: 1px 8px 1px 5px;
+    border-top: 0;
+    border-left: 0;
+    border-right: 0;
+    border-bottom: 1px solid #aaa;
+}
+
+table.footnote td, table.footnote th {
+    border: 0 !important;
+}
+
+th {
+    text-align: left;
+    padding-right: 5px;
+}
+
+table.citation {
+    border-left: solid 1px gray;
+    margin-left: 1px;
+}
+
+table.citation td {
+    border-bottom: none;
+}
+
+th > :first-child,
+td > :first-child {
+    margin-top: 0px;
+}
+
+th > :last-child,
+td > :last-child {
+    margin-bottom: 0px;
+}
+
+/* -- figures --------------------------------------------------------------- */
+
+div.figure {
+    margin: 0.5em;
+    padding: 0.5em;
+}
+
+div.figure p.caption {
+    padding: 0.3em;
+}
+
+div.figure p.caption span.caption-number {
+    font-style: italic;
+}
+
+div.figure p.caption span.caption-text {
+}
+
+/* -- field list styles ----------------------------------------------------- */
+
+table.field-list td, table.field-list th {
+    border: 0 !important;
+}
+
+.field-list ul {
+    margin: 0;
+    padding-left: 1em;
+}
+
+.field-list p {
+    margin: 0;
+}
+
+.field-name {
+    -moz-hyphens: manual;
+    -ms-hyphens: manual;
+    -webkit-hyphens: manual;
+    hyphens: manual;
+}
+
+/* -- hlist styles ---------------------------------------------------------- */
+
+table.hlist {
+    margin: 1em 0;
+}
+
+table.hlist td {
+    vertical-align: top;
+}
+
+
+/* -- other body styles ----------------------------------------------------- */
+
+ol.arabic {
+    list-style: decimal;
+}
+
+ol.loweralpha {
+    list-style: lower-alpha;
+}
+
+ol.upperalpha {
+    list-style: upper-alpha;
+}
+
+ol.lowerroman {
+    list-style: lower-roman;
+}
+
+ol.upperroman {
+    list-style: upper-roman;
+}
+
+:not(li) > ol > li:first-child > :first-child,
+:not(li) > ul > li:first-child > :first-child {
+    margin-top: 0px;
+}
+
+:not(li) > ol > li:last-child > :last-child,
+:not(li) > ul > li:last-child > :last-child {
+    margin-bottom: 0px;
+}
+
+ol.simple ol p,
+ol.simple ul p,
+ul.simple ol p,
+ul.simple ul p {
+    margin-top: 0;
+}
+
+ol.simple > li:not(:first-child) > p,
+ul.simple > li:not(:first-child) > p {
+    margin-top: 0;
+}
+
+ol.simple p,
+ul.simple p {
+    margin-bottom: 0;
+}
+
+dl.footnote > dt,
+dl.citation > dt {
+    float: left;
+    margin-right: 0.5em;
+}
+
+dl.footnote > dd,
+dl.citation > dd {
+    margin-bottom: 0em;
+}
+
+dl.footnote > dd:after,
+dl.citation > dd:after {
+    content: "";
+    clear: both;
+}
+
+dl.field-list {
+    display: grid;
+    grid-template-columns: fit-content(30%) auto;
+}
+
+dl.field-list > dt {
+    font-weight: bold;
+    word-break: break-word;
+    padding-left: 0.5em;
+    padding-right: 5px;
+}
+
+dl.field-list > dt:after {
+    content: ":";
+}
+
+dl.field-list > dd {
+    padding-left: 0.5em;
+    margin-top: 0em;
+    margin-left: 0em;
+    margin-bottom: 0em;
+}
+
+dl {
+    margin-bottom: 15px;
+}
+
+dd > :first-child {
+    margin-top: 0px;
+}
+
+dd ul, dd table {
+    margin-bottom: 10px;
+}
+
+dd {
+    margin-top: 3px;
+    margin-bottom: 10px;
+    margin-left: 30px;
+}
+
+dl > dd:last-child,
+dl > dd:last-child > :last-child {
+    margin-bottom: 0;
+}
+
+dt:target, span.highlighted {
+    background-color: #fbe54e;
+}
+
+rect.highlighted {
+    fill: #fbe54e;
+}
+
+dl.glossary dt {
+    font-weight: bold;
+    font-size: 1.1em;
+}
+
+.optional {
+    font-size: 1.3em;
+}
+
+.sig-paren {
+    font-size: larger;
+}
+
+.versionmodified {
+    font-style: italic;
+}
+
+.system-message {
+    background-color: #fda;
+    padding: 5px;
+    border: 3px solid red;
+}
+
+.footnote:target  {
+    background-color: #ffa;
+}
+
+.line-block {
+    display: block;
+    margin-top: 1em;
+    margin-bottom: 1em;
+}
+
+.line-block .line-block {
+    margin-top: 0;
+    margin-bottom: 0;
+    margin-left: 1.5em;
+}
+
+.guilabel, .menuselection {
+    font-family: sans-serif;
+}
+
+.accelerator {
+    text-decoration: underline;
+}
+
+.classifier {
+    font-style: oblique;
+}
+
+.classifier:before {
+    font-style: normal;
+    margin: 0.5em;
+    content: ":";
+}
+
+abbr, acronym {
+    border-bottom: dotted 1px;
+    cursor: help;
+}
+
+/* -- code displays --------------------------------------------------------- */
+
+pre {
+    overflow: auto;
+    overflow-y: hidden;  /* fixes display issues on Chrome browsers */
+}
+
+pre, div[class*="highlight-"] {
+    clear: both;
+}
+
+span.pre {
+    -moz-hyphens: none;
+    -ms-hyphens: none;
+    -webkit-hyphens: none;
+    hyphens: none;
+}
+
+div[class*="highlight-"] {
+    margin: 1em 0;
+}
+
+td.linenos pre {
+    border: 0;
+    background-color: transparent;
+    color: #aaa;
+}
+
+table.highlighttable {
+    display: block;
+}
+
+table.highlighttable tbody {
+    display: block;
+}
+
+table.highlighttable tr {
+    display: flex;
+}
+
+table.highlighttable td {
+    margin: 0;
+    padding: 0;
+}
+
+table.highlighttable td.linenos {
+    padding-right: 0.5em;
+}
+
+table.highlighttable td.code {
+    flex: 1;
+    overflow: hidden;
+}
+
+.highlight .hll {
+    display: block;
+}
+
+div.highlight pre,
+table.highlighttable pre {
+    margin: 0;
+}
+
+div.code-block-caption + div {
+    margin-top: 0;
+}
+
+div.code-block-caption {
+    margin-top: 1em;
+    padding: 2px 5px;
+    font-size: small;
+}
+
+div.code-block-caption code {
+    background-color: transparent;
+}
+
+table.highlighttable td.linenos,
+span.linenos,
+div.doctest > div.highlight span.gp {  /* gp: Generic.Prompt */
+    user-select: none;
+}
+
+div.code-block-caption span.caption-number {
+    padding: 0.1em 0.3em;
+    font-style: italic;
+}
+
+div.code-block-caption span.caption-text {
+}
+
+div.literal-block-wrapper {
+    margin: 1em 0;
+}
+
+code.descname {
+    background-color: transparent;
+    font-weight: bold;
+    font-size: 1.2em;
+}
+
+code.descclassname {
+    background-color: transparent;
+}
+
+code.xref, a code {
+    background-color: transparent;
+    font-weight: bold;
+}
+
+h1 code, h2 code, h3 code, h4 code, h5 code, h6 code {
+    background-color: transparent;
+}
+
+.viewcode-link {
+    float: right;
+}
+
+.viewcode-back {
+    float: right;
+    font-family: sans-serif;
+}
+
+div.viewcode-block:target {
+    margin: -1px -10px;
+    padding: 0 10px;
+}
+
+/* -- math display ---------------------------------------------------------- */
+
+img.math {
+    vertical-align: middle;
+}
+
+div.body div.math p {
+    text-align: center;
+}
+
+span.eqno {
+    float: right;
+}
+
+span.eqno a.headerlink {
+    position: absolute;
+    z-index: 1;
+}
+
+div.math:hover a.headerlink {
+    visibility: visible;
+}
+
+/* -- printout stylesheet --------------------------------------------------- */
+
+@media print {
+    div.document,
+    div.documentwrapper,
+    div.bodywrapper {
+        margin: 0 !important;
+        width: 100%;
+    }
+
+    div.sphinxsidebar,
+    div.related,
+    div.footer,
+    #top-link {
+        display: none;
+    }
+}

externals/fmt/doc/html/_static/doctools.js

@@ -0,0 +1,316 @@
+/*
+ * doctools.js
+ * ~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilities for all documentation.
+ *
+ * :copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/**
+ * select a different prefix for underscore
+ */
+$u = _.noConflict();
+
+/**
+ * make the code below compatible with browsers without
+ * an installed firebug like debugger
+if (!window.console || !console.firebug) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
+    "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
+    "profile", "profileEnd"];
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+}
+ */
+
+/**
+ * small helper function to urldecode strings
+ */
+jQuery.urldecode = function(x) {
+  return decodeURIComponent(x).replace(/\+/g, ' ');
+};
+
+/**
+ * small helper function to urlencode strings
+ */
+jQuery.urlencode = encodeURIComponent;
+
+/**
+ * This function returns the parsed url parameters of the
+ * current request. Multiple values per key are supported,
+ * it will always return arrays of strings for the value parts.
+ */
+jQuery.getQueryParameters = function(s) {
+  if (typeof s === 'undefined')
+    s = document.location.search;
+  var parts = s.substr(s.indexOf('?') + 1).split('&');
+  var result = {};
+  for (var i = 0; i < parts.length; i++) {
+    var tmp = parts[i].split('=', 2);
+    var key = jQuery.urldecode(tmp[0]);
+    var value = jQuery.urldecode(tmp[1]);
+    if (key in result)
+      result[key].push(value);
+    else
+      result[key] = [value];
+  }
+  return result;
+};
+
+/**
+ * highlight a given string on a jquery object by wrapping it in
+ * span elements with the given class name.
+ */
+jQuery.fn.highlightText = function(text, className) {
+  function highlight(node, addItems) {
+    if (node.nodeType === 3) {
+      var val = node.nodeValue;
+      var pos = val.toLowerCase().indexOf(text);
+      if (pos >= 0 &&
+          !jQuery(node.parentNode).hasClass(className) &&
+          !jQuery(node.parentNode).hasClass("nohighlight")) {
+        var span;
+        var isInSVG = jQuery(node).closest("body, svg, foreignObject").is("svg");
+        if (isInSVG) {
+          span = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
+        } else {
+          span = document.createElement("span");
+          span.className = className;
+        }
+        span.appendChild(document.createTextNode(val.substr(pos, text.length)));
+        node.parentNode.insertBefore(span, node.parentNode.insertBefore(
+          document.createTextNode(val.substr(pos + text.length)),
+          node.nextSibling));
+        node.nodeValue = val.substr(0, pos);
+        if (isInSVG) {
+          var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
+          var bbox = node.parentElement.getBBox();
+          rect.x.baseVal.value = bbox.x;
+          rect.y.baseVal.value = bbox.y;
+          rect.width.baseVal.value = bbox.width;
+          rect.height.baseVal.value = bbox.height;
+          rect.setAttribute('class', className);
+          addItems.push({
+              "parent": node.parentNode,
+              "target": rect});
+        }
+      }
+    }
+    else if (!jQuery(node).is("button, select, textarea")) {
+      jQuery.each(node.childNodes, function() {
+        highlight(this, addItems);
+      });
+    }
+  }
+  var addItems = [];
+  var result = this.each(function() {
+    highlight(this, addItems);
+  });
+  for (var i = 0; i < addItems.length; ++i) {
+    jQuery(addItems[i].parent).before(addItems[i].target);
+  }
+  return result;
+};
+
+/*
+ * backward compatibility for jQuery.browser
+ * This will be supported until firefox bug is fixed.
+ */
+if (!jQuery.browser) {
+  jQuery.uaMatch = function(ua) {
+    ua = ua.toLowerCase();
+
+    var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
+      /(webkit)[ \/]([\w.]+)/.exec(ua) ||
+      /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
+      /(msie) ([\w.]+)/.exec(ua) ||
+      ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
+      [];
+
+    return {
+      browser: match[ 1 ] || "",
+      version: match[ 2 ] || "0"
+    };
+  };
+  jQuery.browser = {};
+  jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true;
+}
+
+/**
+ * Small JavaScript module for the documentation.
+ */
+var Documentation = {
+
+  init : function() {
+    this.fixFirefoxAnchorBug();
+    this.highlightSearchWords();
+    this.initIndexTable();
+    if (DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) {
+      this.initOnKeyListeners();
+    }
+  },
+
+  /**
+   * i18n support
+   */
+  TRANSLATIONS : {},
+  PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; },
+  LOCALE : 'unknown',
+
+  // gettext and ngettext don't access this so that the functions
+  // can safely bound to a different name (_ = Documentation.gettext)
+  gettext : function(string) {
+    var translated = Documentation.TRANSLATIONS[string];
+    if (typeof translated === 'undefined')
+      return string;
+    return (typeof translated === 'string') ? translated : translated[0];
+  },
+
+  ngettext : function(singular, plural, n) {
+    var translated = Documentation.TRANSLATIONS[singular];
+    if (typeof translated === 'undefined')
+      return (n == 1) ? singular : plural;
+    return translated[Documentation.PLURALEXPR(n)];
+  },
+
+  addTranslations : function(catalog) {
+    for (var key in catalog.messages)
+      this.TRANSLATIONS[key] = catalog.messages[key];
+    this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
+    this.LOCALE = catalog.locale;
+  },
+
+  /**
+   * add context elements like header anchor links
+   */
+  addContextElements : function() {
+    $('div[id] > :header:first').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this headline')).
+      appendTo(this);
+    });
+    $('dt[id]').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this definition')).
+      appendTo(this);
+    });
+  },
+
+  /**
+   * workaround a firefox stupidity
+   * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075
+   */
+  fixFirefoxAnchorBug : function() {
+    if (document.location.hash && $.browser.mozilla)
+      window.setTimeout(function() {
+        document.location.href += '';
+      }, 10);
+  },
+
+  /**
+   * highlight the search words provided in the url in the text
+   */
+  highlightSearchWords : function() {
+    var params = $.getQueryParameters();
+    var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
+    if (terms.length) {
+      var body = $('div.body');
+      if (!body.length) {
+        body = $('body');
+      }
+      window.setTimeout(function() {
+        $.each(terms, function() {
+          body.highlightText(this.toLowerCase(), 'highlighted');
+        });
+      }, 10);
+      $('<p class="highlight-link"><a href="javascript:Documentation.' +
+        'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>')
+          .appendTo($('#searchbox'));
+    }
+  },
+
+  /**
+   * init the domain index toggle buttons
+   */
+  initIndexTable : function() {
+    var togglers = $('img.toggler').click(function() {
+      var src = $(this).attr('src');
+      var idnum = $(this).attr('id').substr(7);
+      $('tr.cg-' + idnum).toggle();
+      if (src.substr(-9) === 'minus.png')
+        $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
+      else
+        $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
+    }).css('display', '');
+    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
+        togglers.click();
+    }
+  },
+
+  /**
+   * helper function to hide the search marks again
+   */
+  hideSearchWords : function() {
+    $('#searchbox .highlight-link').fadeOut(300);
+    $('span.highlighted').removeClass('highlighted');
+  },
+
+  /**
+   * make the url absolute
+   */
+  makeURL : function(relativeURL) {
+    return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
+  },
+
+  /**
+   * get the current relative url
+   */
+  getCurrentURL : function() {
+    var path = document.location.pathname;
+    var parts = path.split(/\//);
+    $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
+      if (this === '..')
+        parts.pop();
+    });
+    var url = parts.join('/');
+    return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
+  },
+
+  initOnKeyListeners: function() {
+    $(document).keydown(function(event) {
+      var activeElementType = document.activeElement.tagName;
+      // don't navigate when in search box, textarea, dropdown or button
+      if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT'
+          && activeElementType !== 'BUTTON' && !event.altKey && !event.ctrlKey && !event.metaKey
+          && !event.shiftKey) {
+        switch (event.keyCode) {
+          case 37: // left
+            var prevHref = $('link[rel="prev"]').prop('href');
+            if (prevHref) {
+              window.location.href = prevHref;
+              return false;
+            }
+          case 39: // right
+            var nextHref = $('link[rel="next"]').prop('href');
+            if (nextHref) {
+              window.location.href = nextHref;
+              return false;
+            }
+        }
+      }
+    });
+  }
+};
+
+// quick alias for translations
+_ = Documentation.gettext;
+
+$(document).ready(function() {
+  Documentation.init();
+});

externals/fmt/doc/html/_static/documentation_options.js

@@ -0,0 +1,12 @@
+var DOCUMENTATION_OPTIONS = {
+    URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
+    VERSION: '9.1.0',
+    LANGUAGE: 'None',
+    COLLAPSE_INDEX: false,
+    BUILDER: 'html',
+    FILE_SUFFIX: '.html',
+    LINK_SUFFIX: '.html',
+    HAS_SOURCE: true,
+    SOURCELINK_SUFFIX: '.txt',
+    NAVIGATION_WITH_KEYS: false
+};

externals/fmt/doc/html/_static/fonts/glyphicons-halflings-regular.svg

@@ -0,0 +1,229 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
+<svg xmlns="http://www.w3.org/2000/svg">
+<metadata></metadata>
+<defs>
+<font id="glyphicons_halflingsregular" horiz-adv-x="1200" >
+<font-face units-per-em="1200" ascent="960" descent="-240" />
+<missing-glyph horiz-adv-x="500" />
+<glyph />
+<glyph />
+<glyph unicode="&#xd;" />
+<glyph unicode=" " />
+<glyph unicode="*" d="M100 500v200h259l-183 183l141 141l183 -183v259h200v-259l183 183l141 -141l-183 -183h259v-200h-259l183 -183l-141 -141l-183 183v-259h-200v259l-183 -183l-141 141l183 183h-259z" />
+<glyph unicode="+" d="M0 400v300h400v400h300v-400h400v-300h-400v-400h-300v400h-400z" />
+<glyph unicode="&#xa0;" />
+<glyph unicode="&#x2000;" horiz-adv-x="652" />
+<glyph unicode="&#x2001;" horiz-adv-x="1304" />
+<glyph unicode="&#x2002;" horiz-adv-x="652" />
+<glyph unicode="&#x2003;" horiz-adv-x="1304" />
+<glyph unicode="&#x2004;" horiz-adv-x="434" />
+<glyph unicode="&#x2005;" horiz-adv-x="326" />
+<glyph unicode="&#x2006;" horiz-adv-x="217" />
+<glyph unicode="&#x2007;" horiz-adv-x="217" />
+<glyph unicode="&#x2008;" horiz-adv-x="163" />
+<glyph unicode="&#x2009;" horiz-adv-x="260" />
+<glyph unicode="&#x200a;" horiz-adv-x="72" />
+<glyph unicode="&#x202f;" horiz-adv-x="260" />
+<glyph unicode="&#x205f;" horiz-adv-x="326" />
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+<glyph unicode="&#x2212;" d="M200 400h900v300h-900v-300z" />
+<glyph unicode="&#x25fc;" horiz-adv-x="500" d="M0 0z" />
+<glyph unicode="&#x2601;" d="M-14 494q0 -80 56.5 -137t135.5 -57h750q120 0 205 86.5t85 207.5t-85 207t-205 86q-46 0 -90 -14q-44 97 -134.5 156.5t-200.5 59.5q-152 0 -260 -107.5t-108 -260.5q0 -25 2 -37q-66 -14 -108.5 -67.5t-42.5 -122.5z" />
+<glyph unicode="&#x2709;" d="M0 100l400 400l200 -200l200 200l400 -400h-1200zM0 300v600l300 -300zM0 1100l600 -603l600 603h-1200zM900 600l300 300v-600z" />
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+</font>
+</defs></svg> 

externals/fmt/doc/html/_static/language_data.js

@@ -0,0 +1,297 @@
+/*
+ * language_data.js
+ * ~~~~~~~~~~~~~~~~
+ *
+ * This script contains the language-specific data used by searchtools.js,
+ * namely the list of stopwords, stemmer, scorer and splitter.
+ *
+ * :copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
+
+
+/* Non-minified version JS is _stemmer.js if file is provided */ 
+/**
+ * Porter Stemmer
+ */
+var Stemmer = function() {
+
+  var step2list = {
+    ational: 'ate',
+    tional: 'tion',
+    enci: 'ence',
+    anci: 'ance',
+    izer: 'ize',
+    bli: 'ble',
+    alli: 'al',
+    entli: 'ent',
+    eli: 'e',
+    ousli: 'ous',
+    ization: 'ize',
+    ation: 'ate',
+    ator: 'ate',
+    alism: 'al',
+    iveness: 'ive',
+    fulness: 'ful',
+    ousness: 'ous',
+    aliti: 'al',
+    iviti: 'ive',
+    biliti: 'ble',
+    logi: 'log'
+  };
+
+  var step3list = {
+    icate: 'ic',
+    ative: '',
+    alize: 'al',
+    iciti: 'ic',
+    ical: 'ic',
+    ful: '',
+    ness: ''
+  };
+
+  var c = "[^aeiou]";          // consonant
+  var v = "[aeiouy]";          // vowel
+  var C = c + "[^aeiouy]*";    // consonant sequence
+  var V = v + "[aeiou]*";      // vowel sequence
+
+  var mgr0 = "^(" + C + ")?" + V + C;                      // [C]VC... is m>0
+  var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$";    // [C]VC[V] is m=1
+  var mgr1 = "^(" + C + ")?" + V + C + V + C;              // [C]VCVC... is m>1
+  var s_v   = "^(" + C + ")?" + v;                         // vowel in stem
+
+  this.stemWord = function (w) {
+    var stem;
+    var suffix;
+    var firstch;
+    var origword = w;
+
+    if (w.length < 3)
+      return w;
+
+    var re;
+    var re2;
+    var re3;
+    var re4;
+
+    firstch = w.substr(0,1);
+    if (firstch == "y")
+      w = firstch.toUpperCase() + w.substr(1);
+
+    // Step 1a
+    re = /^(.+?)(ss|i)es$/;
+    re2 = /^(.+?)([^s])s$/;
+
+    if (re.test(w))
+      w = w.replace(re,"$1$2");
+    else if (re2.test(w))
+      w = w.replace(re2,"$1$2");
+
+    // Step 1b
+    re = /^(.+?)eed$/;
+    re2 = /^(.+?)(ed|ing)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      re = new RegExp(mgr0);
+      if (re.test(fp[1])) {
+        re = /.$/;
+        w = w.replace(re,"");
+      }
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1];
+      re2 = new RegExp(s_v);
+      if (re2.test(stem)) {
+        w = stem;
+        re2 = /(at|bl|iz)$/;
+        re3 = new RegExp("([^aeiouylsz])\\1$");
+        re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+        if (re2.test(w))
+          w = w + "e";
+        else if (re3.test(w)) {
+          re = /.$/;
+          w = w.replace(re,"");
+        }
+        else if (re4.test(w))
+          w = w + "e";
+      }
+    }
+
+    // Step 1c
+    re = /^(.+?)y$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(s_v);
+      if (re.test(stem))
+        w = stem + "i";
+    }
+
+    // Step 2
+    re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step2list[suffix];
+    }
+
+    // Step 3
+    re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step3list[suffix];
+    }
+
+    // Step 4
+    re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
+    re2 = /^(.+?)(s|t)(ion)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      if (re.test(stem))
+        w = stem;
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1] + fp[2];
+      re2 = new RegExp(mgr1);
+      if (re2.test(stem))
+        w = stem;
+    }
+
+    // Step 5
+    re = /^(.+?)e$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      re2 = new RegExp(meq1);
+      re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
+        w = stem;
+    }
+    re = /ll$/;
+    re2 = new RegExp(mgr1);
+    if (re.test(w) && re2.test(w)) {
+      re = /.$/;
+      w = w.replace(re,"");
+    }
+
+    // and turn initial Y back to y
+    if (firstch == "y")
+      w = firstch.toLowerCase() + w.substr(1);
+    return w;
+  }
+}
+
+
+
+
+
+var splitChars = (function() {
+    var result = {};
+    var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648,
+         1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702,
+         2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971,
+         2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345,
+         3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761,
+         3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823,
+         4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125,
+         8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695,
+         11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587,
+         43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141];
+    var i, j, start, end;
+    for (i = 0; i < singles.length; i++) {
+        result[singles[i]] = true;
+    }
+    var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709],
+         [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161],
+         [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568],
+         [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807],
+         [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047],
+         [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383],
+         [2385, 2391], [2402, 2405], [2419, 2424], [2432, 2436], [2445, 2446], [2449, 2450],
+         [2483, 2485], [2490, 2492], [2494, 2509], [2511, 2523], [2530, 2533], [2546, 2547],
+         [2554, 2564], [2571, 2574], [2577, 2578], [2618, 2648], [2655, 2661], [2672, 2673],
+         [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820],
+         [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946],
+         [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023],
+         [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173],
+         [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332],
+         [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481],
+         [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718],
+         [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791],
+         [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095],
+         [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205],
+         [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687],
+         [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968],
+         [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869],
+         [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102],
+         [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271],
+         [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592],
+         [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822],
+         [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167],
+         [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959],
+         [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143],
+         [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318],
+         [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483],
+         [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101],
+         [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567],
+         [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292],
+         [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444],
+         [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783],
+         [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311],
+         [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511],
+         [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774],
+         [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071],
+         [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263],
+         [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519],
+         [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647],
+         [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967],
+         [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295],
+         [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274],
+         [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007],
+         [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381],
+         [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]];
+    for (i = 0; i < ranges.length; i++) {
+        start = ranges[i][0];
+        end = ranges[i][1];
+        for (j = start; j <= end; j++) {
+            result[j] = true;
+        }
+    }
+    return result;
+})();
+
+function splitQuery(query) {
+    var result = [];
+    var start = -1;
+    for (var i = 0; i < query.length; i++) {
+        if (splitChars[query.charCodeAt(i)]) {
+            if (start !== -1) {
+                result.push(query.slice(start, i));
+                start = -1;
+            }
+        } else if (start === -1) {
+            start = i;
+        }
+    }
+    if (start !== -1) {
+        result.push(query.slice(start));
+    }
+    return result;
+}
+
+

externals/fmt/doc/html/_static/pygments.css

@@ -0,0 +1,74 @@
+pre { line-height: 125%; }
+td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
+span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
+.highlight .hll { background-color: #ffffcc }
+.highlight { background: #eeffcc; }
+.highlight .c { color: #408090; font-style: italic } /* Comment */
+.highlight .err { border: 1px solid #FF0000 } /* Error */
+.highlight .k { color: #007020; font-weight: bold } /* Keyword */
+.highlight .o { color: #666666 } /* Operator */
+.highlight .ch { color: #408090; font-style: italic } /* Comment.Hashbang */
+.highlight .cm { color: #408090; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #007020 } /* Comment.Preproc */
+.highlight .cpf { color: #408090; font-style: italic } /* Comment.PreprocFile */
+.highlight .c1 { color: #408090; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #408090; background-color: #fff0f0 } /* Comment.Special */
+.highlight .gd { color: #A00000 } /* Generic.Deleted */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gr { color: #FF0000 } /* Generic.Error */
+.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.highlight .gi { color: #00A000 } /* Generic.Inserted */
+.highlight .go { color: #333333 } /* Generic.Output */
+.highlight .gp { color: #c65d09; font-weight: bold } /* Generic.Prompt */
+.highlight .gs { font-weight: bold } /* Generic.Strong */
+.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.highlight .gt { color: #0044DD } /* Generic.Traceback */
+.highlight .kc { color: #007020; font-weight: bold } /* Keyword.Constant */
+.highlight .kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
+.highlight .kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
+.highlight .kp { color: #007020 } /* Keyword.Pseudo */
+.highlight .kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
+.highlight .kt { color: #902000 } /* Keyword.Type */
+.highlight .m { color: #208050 } /* Literal.Number */
+.highlight .s { color: #4070a0 } /* Literal.String */
+.highlight .na { color: #4070a0 } /* Name.Attribute */
+.highlight .nb { color: #007020 } /* Name.Builtin */
+.highlight .nc { color: #0e84b5; font-weight: bold } /* Name.Class */
+.highlight .no { color: #60add5 } /* Name.Constant */
+.highlight .nd { color: #555555; font-weight: bold } /* Name.Decorator */
+.highlight .ni { color: #d55537; font-weight: bold } /* Name.Entity */
+.highlight .ne { color: #007020 } /* Name.Exception */
+.highlight .nf { color: #06287e } /* Name.Function */
+.highlight .nl { color: #002070; font-weight: bold } /* Name.Label */
+.highlight .nn { color: #0e84b5; font-weight: bold } /* Name.Namespace */
+.highlight .nt { color: #062873; font-weight: bold } /* Name.Tag */
+.highlight .nv { color: #bb60d5 } /* Name.Variable */
+.highlight .ow { color: #007020; font-weight: bold } /* Operator.Word */
+.highlight .w { color: #bbbbbb } /* Text.Whitespace */
+.highlight .mb { color: #208050 } /* Literal.Number.Bin */
+.highlight .mf { color: #208050 } /* Literal.Number.Float */
+.highlight .mh { color: #208050 } /* Literal.Number.Hex */
+.highlight .mi { color: #208050 } /* Literal.Number.Integer */
+.highlight .mo { color: #208050 } /* Literal.Number.Oct */
+.highlight .sa { color: #4070a0 } /* Literal.String.Affix */
+.highlight .sb { color: #4070a0 } /* Literal.String.Backtick */
+.highlight .sc { color: #4070a0 } /* Literal.String.Char */
+.highlight .dl { color: #4070a0 } /* Literal.String.Delimiter */
+.highlight .sd { color: #4070a0; font-style: italic } /* Literal.String.Doc */
+.highlight .s2 { color: #4070a0 } /* Literal.String.Double */
+.highlight .se { color: #4070a0; font-weight: bold } /* Literal.String.Escape */
+.highlight .sh { color: #4070a0 } /* Literal.String.Heredoc */
+.highlight .si { color: #70a0d0; font-style: italic } /* Literal.String.Interpol */
+.highlight .sx { color: #c65d09 } /* Literal.String.Other */
+.highlight .sr { color: #235388 } /* Literal.String.Regex */
+.highlight .s1 { color: #4070a0 } /* Literal.String.Single */
+.highlight .ss { color: #517918 } /* Literal.String.Symbol */
+.highlight .bp { color: #007020 } /* Name.Builtin.Pseudo */
+.highlight .fm { color: #06287e } /* Name.Function.Magic */
+.highlight .vc { color: #bb60d5 } /* Name.Variable.Class */
+.highlight .vg { color: #bb60d5 } /* Name.Variable.Global */
+.highlight .vi { color: #bb60d5 } /* Name.Variable.Instance */
+.highlight .vm { color: #bb60d5 } /* Name.Variable.Magic */
+.highlight .il { color: #208050 } /* Literal.Number.Integer.Long */

externals/fmt/doc/html/_static/searchtools.js

@@ -0,0 +1,514 @@
+/*
+ * searchtools.js
+ * ~~~~~~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilities for the full-text search.
+ *
+ * :copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+if (!Scorer) {
+  /**
+   * Simple result scoring code.
+   */
+  var Scorer = {
+    // Implement the following function to further tweak the score for each result
+    // The function takes a result array [filename, title, anchor, descr, score]
+    // and returns the new score.
+    /*
+    score: function(result) {
+      return result[4];
+    },
+    */
+
+    // query matches the full name of an object
+    objNameMatch: 11,
+    // or matches in the last dotted part of the object name
+    objPartialMatch: 6,
+    // Additive scores depending on the priority of the object
+    objPrio: {0:  15,   // used to be importantResults
+              1:  5,   // used to be objectResults
+              2: -5},  // used to be unimportantResults
+    //  Used when the priority is not in the mapping.
+    objPrioDefault: 0,
+
+    // query found in title
+    title: 15,
+    partialTitle: 7,
+    // query found in terms
+    term: 5,
+    partialTerm: 2
+  };
+}
+
+if (!splitQuery) {
+  function splitQuery(query) {
+    return query.split(/\s+/);
+  }
+}
+
+/**
+ * Search Module
+ */
+var Search = {
+
+  _index : null,
+  _queued_query : null,
+  _pulse_status : -1,
+
+  htmlToText : function(htmlString) {
+      var virtualDocument = document.implementation.createHTMLDocument('virtual');
+      var htmlElement = $(htmlString, virtualDocument);
+      htmlElement.find('.headerlink').remove();
+      docContent = htmlElement.find('[role=main]')[0];
+      if(docContent === undefined) {
+          console.warn("Content block not found. Sphinx search tries to obtain it " +
+                       "via '[role=main]'. Could you check your theme or template.");
+          return "";
+      }
+      return docContent.textContent || docContent.innerText;
+  },
+
+  init : function() {
+      var params = $.getQueryParameters();
+      if (params.q) {
+          var query = params.q[0];
+          $('input[name="q"]')[0].value = query;
+          this.performSearch(query);
+      }
+  },
+
+  loadIndex : function(url) {
+    $.ajax({type: "GET", url: url, data: null,
+            dataType: "script", cache: true,
+            complete: function(jqxhr, textstatus) {
+              if (textstatus != "success") {
+                document.getElementById("searchindexloader").src = url;
+              }
+            }});
+  },
+
+  setIndex : function(index) {
+    var q;
+    this._index = index;
+    if ((q = this._queued_query) !== null) {
+      this._queued_query = null;
+      Search.query(q);
+    }
+  },
+
+  hasIndex : function() {
+      return this._index !== null;
+  },
+
+  deferQuery : function(query) {
+      this._queued_query = query;
+  },
+
+  stopPulse : function() {
+      this._pulse_status = 0;
+  },
+
+  startPulse : function() {
+    if (this._pulse_status >= 0)
+        return;
+    function pulse() {
+      var i;
+      Search._pulse_status = (Search._pulse_status + 1) % 4;
+      var dotString = '';
+      for (i = 0; i < Search._pulse_status; i++)
+        dotString += '.';
+      Search.dots.text(dotString);
+      if (Search._pulse_status > -1)
+        window.setTimeout(pulse, 500);
+    }
+    pulse();
+  },
+
+  /**
+   * perform a search for something (or wait until index is loaded)
+   */
+  performSearch : function(query) {
+    // create the required interface elements
+    this.out = $('#search-results');
+    this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+    this.dots = $('<span></span>').appendTo(this.title);
+    this.status = $('<p class="search-summary">&nbsp;</p>').appendTo(this.out);
+    this.output = $('<ul class="search"/>').appendTo(this.out);
+
+    $('#search-progress').text(_('Preparing search...'));
+    this.startPulse();
+
+    // index already loaded, the browser was quick!
+    if (this.hasIndex())
+      this.query(query);
+    else
+      this.deferQuery(query);
+  },
+
+  /**
+   * execute search (requires search index to be loaded)
+   */
+  query : function(query) {
+    var i;
+
+    // stem the searchterms and add them to the correct list
+    var stemmer = new Stemmer();
+    var searchterms = [];
+    var excluded = [];
+    var hlterms = [];
+    var tmp = splitQuery(query);
+    var objectterms = [];
+    for (i = 0; i < tmp.length; i++) {
+      if (tmp[i] !== "") {
+          objectterms.push(tmp[i].toLowerCase());
+      }
+
+      if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i] === "") {
+        // skip this "word"
+        continue;
+      }
+      // stem the word
+      var word = stemmer.stemWord(tmp[i].toLowerCase());
+      // prevent stemmer from cutting word smaller than two chars
+      if(word.length < 3 && tmp[i].length >= 3) {
+        word = tmp[i];
+      }
+      var toAppend;
+      // select the correct list
+      if (word[0] == '-') {
+        toAppend = excluded;
+        word = word.substr(1);
+      }
+      else {
+        toAppend = searchterms;
+        hlterms.push(tmp[i].toLowerCase());
+      }
+      // only add if not already in the list
+      if (!$u.contains(toAppend, word))
+        toAppend.push(word);
+    }
+    var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
+
+    // console.debug('SEARCH: searching for:');
+    // console.info('required: ', searchterms);
+    // console.info('excluded: ', excluded);
+
+    // prepare search
+    var terms = this._index.terms;
+    var titleterms = this._index.titleterms;
+
+    // array of [filename, title, anchor, descr, score]
+    var results = [];
+    $('#search-progress').empty();
+
+    // lookup as object
+    for (i = 0; i < objectterms.length; i++) {
+      var others = [].concat(objectterms.slice(0, i),
+                             objectterms.slice(i+1, objectterms.length));
+      results = results.concat(this.performObjectSearch(objectterms[i], others));
+    }
+
+    // lookup as search terms in fulltext
+    results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms));
+
+    // let the scorer override scores with a custom scoring function
+    if (Scorer.score) {
+      for (i = 0; i < results.length; i++)
+        results[i][4] = Scorer.score(results[i]);
+    }
+
+    // now sort the results by score (in opposite order of appearance, since the
+    // display function below uses pop() to retrieve items) and then
+    // alphabetically
+    results.sort(function(a, b) {
+      var left = a[4];
+      var right = b[4];
+      if (left > right) {
+        return 1;
+      } else if (left < right) {
+        return -1;
+      } else {
+        // same score: sort alphabetically
+        left = a[1].toLowerCase();
+        right = b[1].toLowerCase();
+        return (left > right) ? -1 : ((left < right) ? 1 : 0);
+      }
+    });
+
+    // for debugging
+    //Search.lastresults = results.slice();  // a copy
+    //console.info('search results:', Search.lastresults);
+
+    // print the results
+    var resultCount = results.length;
+    function displayNextItem() {
+      // results left, load the summary and display it
+      if (results.length) {
+        var item = results.pop();
+        var listItem = $('<li style="display:none"></li>');
+        var requestUrl = "";
+        var linkUrl = "";
+        if (DOCUMENTATION_OPTIONS.BUILDER === 'dirhtml') {
+          // dirhtml builder
+          var dirname = item[0] + '/';
+          if (dirname.match(/\/index\/$/)) {
+            dirname = dirname.substring(0, dirname.length-6);
+          } else if (dirname == 'index/') {
+            dirname = '';
+          }
+          requestUrl = DOCUMENTATION_OPTIONS.URL_ROOT + dirname;
+          linkUrl = requestUrl;
+
+        } else {
+          // normal html builders
+          requestUrl = DOCUMENTATION_OPTIONS.URL_ROOT + item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX;
+          linkUrl = item[0] + DOCUMENTATION_OPTIONS.LINK_SUFFIX;
+        }
+        listItem.append($('<a/>').attr('href',
+            linkUrl +
+            highlightstring + item[2]).html(item[1]));
+        if (item[3]) {
+          listItem.append($('<span> (' + item[3] + ')</span>'));
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+          $.ajax({url: requestUrl,
+                  dataType: "text",
+                  complete: function(jqxhr, textstatus) {
+                    var data = jqxhr.responseText;
+                    if (data !== '' && data !== undefined) {
+                      listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+                    }
+                    Search.output.append(listItem);
+                    listItem.slideDown(5, function() {
+                      displayNextItem();
+                    });
+                  }});
+        } else {
+          // no source available, just display title
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        }
+      }
+      // search finished, update title and status message
+      else {
+        Search.stopPulse();
+        Search.title.text(_('Search Results'));
+        if (!resultCount)
+          Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+        else
+            Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+        Search.status.fadeIn(500);
+      }
+    }
+    displayNextItem();
+  },
+
+  /**
+   * search for object names
+   */
+  performObjectSearch : function(object, otherterms) {
+    var filenames = this._index.filenames;
+    var docnames = this._index.docnames;
+    var objects = this._index.objects;
+    var objnames = this._index.objnames;
+    var titles = this._index.titles;
+
+    var i;
+    var results = [];
+
+    for (var prefix in objects) {
+      for (var name in objects[prefix]) {
+        var fullname = (prefix ? prefix + '.' : '') + name;
+        var fullnameLower = fullname.toLowerCase()
+        if (fullnameLower.indexOf(object) > -1) {
+          var score = 0;
+          var parts = fullnameLower.split('.');
+          // check for different match types: exact matches of full name or
+          // "last name" (i.e. last dotted part)
+          if (fullnameLower == object || parts[parts.length - 1] == object) {
+            score += Scorer.objNameMatch;
+          // matches in last name
+          } else if (parts[parts.length - 1].indexOf(object) > -1) {
+            score += Scorer.objPartialMatch;
+          }
+          var match = objects[prefix][name];
+          var objname = objnames[match[1]][2];
+          var title = titles[match[0]];
+          // If more than one term searched for, we require other words to be
+          // found in the name/title/description
+          if (otherterms.length > 0) {
+            var haystack = (prefix + ' ' + name + ' ' +
+                            objname + ' ' + title).toLowerCase();
+            var allfound = true;
+            for (i = 0; i < otherterms.length; i++) {
+              if (haystack.indexOf(otherterms[i]) == -1) {
+                allfound = false;
+                break;
+              }
+            }
+            if (!allfound) {
+              continue;
+            }
+          }
+          var descr = objname + _(', in ') + title;
+
+          var anchor = match[3];
+          if (anchor === '')
+            anchor = fullname;
+          else if (anchor == '-')
+            anchor = objnames[match[1]][1] + '-' + fullname;
+          // add custom score for some objects according to scorer
+          if (Scorer.objPrio.hasOwnProperty(match[2])) {
+            score += Scorer.objPrio[match[2]];
+          } else {
+            score += Scorer.objPrioDefault;
+          }
+          results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]);
+        }
+      }
+    }
+
+    return results;
+  },
+
+  /**
+   * search for full-text terms in the index
+   */
+  performTermsSearch : function(searchterms, excluded, terms, titleterms) {
+    var docnames = this._index.docnames;
+    var filenames = this._index.filenames;
+    var titles = this._index.titles;
+
+    var i, j, file;
+    var fileMap = {};
+    var scoreMap = {};
+    var results = [];
+
+    // perform the search on the required terms
+    for (i = 0; i < searchterms.length; i++) {
+      var word = searchterms[i];
+      var files = [];
+      var _o = [
+        {files: terms[word], score: Scorer.term},
+        {files: titleterms[word], score: Scorer.title}
+      ];
+      // add support for partial matches
+      if (word.length > 2) {
+        for (var w in terms) {
+          if (w.match(word) && !terms[word]) {
+            _o.push({files: terms[w], score: Scorer.partialTerm})
+          }
+        }
+        for (var w in titleterms) {
+          if (w.match(word) && !titleterms[word]) {
+              _o.push({files: titleterms[w], score: Scorer.partialTitle})
+          }
+        }
+      }
+
+      // no match but word was a required one
+      if ($u.every(_o, function(o){return o.files === undefined;})) {
+        break;
+      }
+      // found search word in contents
+      $u.each(_o, function(o) {
+        var _files = o.files;
+        if (_files === undefined)
+          return
+
+        if (_files.length === undefined)
+          _files = [_files];
+        files = files.concat(_files);
+
+        // set score for the word in each file to Scorer.term
+        for (j = 0; j < _files.length; j++) {
+          file = _files[j];
+          if (!(file in scoreMap))
+            scoreMap[file] = {};
+          scoreMap[file][word] = o.score;
+        }
+      });
+
+      // create the mapping
+      for (j = 0; j < files.length; j++) {
+        file = files[j];
+        if (file in fileMap && fileMap[file].indexOf(word) === -1)
+          fileMap[file].push(word);
+        else
+          fileMap[file] = [word];
+      }
+    }
+
+    // now check if the files don't contain excluded terms
+    for (file in fileMap) {
+      var valid = true;
+
+      // check if all requirements are matched
+      var filteredTermCount = // as search terms with length < 3 are discarded: ignore
+        searchterms.filter(function(term){return term.length > 2}).length
+      if (
+        fileMap[file].length != searchterms.length &&
+        fileMap[file].length != filteredTermCount
+      ) continue;
+
+      // ensure that none of the excluded terms is in the search result
+      for (i = 0; i < excluded.length; i++) {
+        if (terms[excluded[i]] == file ||
+            titleterms[excluded[i]] == file ||
+            $u.contains(terms[excluded[i]] || [], file) ||
+            $u.contains(titleterms[excluded[i]] || [], file)) {
+          valid = false;
+          break;
+        }
+      }
+
+      // if we have still a valid result we can add it to the result list
+      if (valid) {
+        // select one (max) score for the file.
+        // for better ranking, we should calculate ranking by using words statistics like basic tf-idf...
+        var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]}));
+        results.push([docnames[file], titles[file], '', null, score, filenames[file]]);
+      }
+    }
+    return results;
+  },
+
+  /**
+   * helper function to return a node containing the
+   * search summary for a given text. keywords is a list
+   * of stemmed words, hlwords is the list of normal, unstemmed
+   * words. the first one is used to find the occurrence, the
+   * latter for highlighting it.
+   */
+  makeSearchSummary : function(htmlText, keywords, hlwords) {
+    var text = Search.htmlToText(htmlText);
+    var textLower = text.toLowerCase();
+    var start = 0;
+    $.each(keywords, function() {
+      var i = textLower.indexOf(this.toLowerCase());
+      if (i > -1)
+        start = i;
+    });
+    start = Math.max(start - 120, 0);
+    var excerpt = ((start > 0) ? '...' : '') +
+      $.trim(text.substr(start, 240)) +
+      ((start + 240 - text.length) ? '...' : '');
+    var rv = $('<div class="context"></div>').text(excerpt);
+    $.each(hlwords, function() {
+      rv = rv.highlightText(this, 'highlighted');
+    });
+    return rv;
+  }
+};
+
+$(document).ready(function() {
+  Search.init();
+});

externals/fmt/doc/html/_static/underscore-1.3.1.js

@@ -0,0 +1,999 @@
+//     Underscore.js 1.3.1
+//     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+//     Underscore is freely distributable under the MIT license.
+//     Portions of Underscore are inspired or borrowed from Prototype,
+//     Oliver Steele's Functional, and John Resig's Micro-Templating.
+//     For all details and documentation:
+//     http://documentcloud.github.com/underscore
+
+(function() {
+
+  // Baseline setup
+  // --------------
+
+  // Establish the root object, `window` in the browser, or `global` on the server.
+  var root = this;
+
+  // Save the previous value of the `_` variable.
+  var previousUnderscore = root._;
+
+  // Establish the object that gets returned to break out of a loop iteration.
+  var breaker = {};
+
+  // Save bytes in the minified (but not gzipped) version:
+  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+  // Create quick reference variables for speed access to core prototypes.
+  var slice            = ArrayProto.slice,
+      unshift          = ArrayProto.unshift,
+      toString         = ObjProto.toString,
+      hasOwnProperty   = ObjProto.hasOwnProperty;
+
+  // All **ECMAScript 5** native function implementations that we hope to use
+  // are declared here.
+  var
+    nativeForEach      = ArrayProto.forEach,
+    nativeMap          = ArrayProto.map,
+    nativeReduce       = ArrayProto.reduce,
+    nativeReduceRight  = ArrayProto.reduceRight,
+    nativeFilter       = ArrayProto.filter,
+    nativeEvery        = ArrayProto.every,
+    nativeSome         = ArrayProto.some,
+    nativeIndexOf      = ArrayProto.indexOf,
+    nativeLastIndexOf  = ArrayProto.lastIndexOf,
+    nativeIsArray      = Array.isArray,
+    nativeKeys         = Object.keys,
+    nativeBind         = FuncProto.bind;
+
+  // Create a safe reference to the Underscore object for use below.
+  var _ = function(obj) { return new wrapper(obj); };
+
+  // Export the Underscore object for **Node.js**, with
+  // backwards-compatibility for the old `require()` API. If we're in
+  // the browser, add `_` as a global object via a string identifier,
+  // for Closure Compiler "advanced" mode.
+  if (typeof exports !== 'undefined') {
+    if (typeof module !== 'undefined' && module.exports) {
+      exports = module.exports = _;
+    }
+    exports._ = _;
+  } else {
+    root['_'] = _;
+  }
+
+  // Current version.
+  _.VERSION = '1.3.1';
+
+  // Collection Functions
+  // --------------------
+
+  // The cornerstone, an `each` implementation, aka `forEach`.
+  // Handles objects with the built-in `forEach`, arrays, and raw objects.
+  // Delegates to **ECMAScript 5**'s native `forEach` if available.
+  var each = _.each = _.forEach = function(obj, iterator, context) {
+    if (obj == null) return;
+    if (nativeForEach && obj.forEach === nativeForEach) {
+      obj.forEach(iterator, context);
+    } else if (obj.length === +obj.length) {
+      for (var i = 0, l = obj.length; i < l; i++) {
+        if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return;
+      }
+    } else {
+      for (var key in obj) {
+        if (_.has(obj, key)) {
+          if (iterator.call(context, obj[key], key, obj) === breaker) return;
+        }
+      }
+    }
+  };
+
+  // Return the results of applying the iterator to each element.
+  // Delegates to **ECMAScript 5**'s native `map` if available.
+  _.map = _.collect = function(obj, iterator, context) {
+    var results = [];
+    if (obj == null) return results;
+    if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+    each(obj, function(value, index, list) {
+      results[results.length] = iterator.call(context, value, index, list);
+    });
+    if (obj.length === +obj.length) results.length = obj.length;
+    return results;
+  };
+
+  // **Reduce** builds up a single result from a list of values, aka `inject`,
+  // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+  _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+    var initial = arguments.length > 2;
+    if (obj == null) obj = [];
+    if (nativeReduce && obj.reduce === nativeReduce) {
+      if (context) iterator = _.bind(iterator, context);
+      return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+    }
+    each(obj, function(value, index, list) {
+      if (!initial) {
+        memo = value;
+        initial = true;
+      } else {
+        memo = iterator.call(context, memo, value, index, list);
+      }
+    });
+    if (!initial) throw new TypeError('Reduce of empty array with no initial value');
+    return memo;
+  };
+
+  // The right-associative version of reduce, also known as `foldr`.
+  // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+  _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+    var initial = arguments.length > 2;
+    if (obj == null) obj = [];
+    if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+      if (context) iterator = _.bind(iterator, context);
+      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+    }
+    var reversed = _.toArray(obj).reverse();
+    if (context && !initial) iterator = _.bind(iterator, context);
+    return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator);
+  };
+
+  // Return the first value which passes a truth test. Aliased as `detect`.
+  _.find = _.detect = function(obj, iterator, context) {
+    var result;
+    any(obj, function(value, index, list) {
+      if (iterator.call(context, value, index, list)) {
+        result = value;
+        return true;
+      }
+    });
+    return result;
+  };
+
+  // Return all the elements that pass a truth test.
+  // Delegates to **ECMAScript 5**'s native `filter` if available.
+  // Aliased as `select`.
+  _.filter = _.select = function(obj, iterator, context) {
+    var results = [];
+    if (obj == null) return results;
+    if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
+    each(obj, function(value, index, list) {
+      if (iterator.call(context, value, index, list)) results[results.length] = value;
+    });
+    return results;
+  };
+
+  // Return all the elements for which a truth test fails.
+  _.reject = function(obj, iterator, context) {
+    var results = [];
+    if (obj == null) return results;
+    each(obj, function(value, index, list) {
+      if (!iterator.call(context, value, index, list)) results[results.length] = value;
+    });
+    return results;
+  };
+
+  // Determine whether all of the elements match a truth test.
+  // Delegates to **ECMAScript 5**'s native `every` if available.
+  // Aliased as `all`.
+  _.every = _.all = function(obj, iterator, context) {
+    var result = true;
+    if (obj == null) return result;
+    if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
+    each(obj, function(value, index, list) {
+      if (!(result = result && iterator.call(context, value, index, list))) return breaker;
+    });
+    return result;
+  };
+
+  // Determine if at least one element in the object matches a truth test.
+  // Delegates to **ECMAScript 5**'s native `some` if available.
+  // Aliased as `any`.
+  var any = _.some = _.any = function(obj, iterator, context) {
+    iterator || (iterator = _.identity);
+    var result = false;
+    if (obj == null) return result;
+    if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
+    each(obj, function(value, index, list) {
+      if (result || (result = iterator.call(context, value, index, list))) return breaker;
+    });
+    return !!result;
+  };
+
+  // Determine if a given value is included in the array or object using `===`.
+  // Aliased as `contains`.
+  _.include = _.contains = function(obj, target) {
+    var found = false;
+    if (obj == null) return found;
+    if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+    found = any(obj, function(value) {
+      return value === target;
+    });
+    return found;
+  };
+
+  // Invoke a method (with arguments) on every item in a collection.
+  _.invoke = function(obj, method) {
+    var args = slice.call(arguments, 2);
+    return _.map(obj, function(value) {
+      return (_.isFunction(method) ? method || value : value[method]).apply(value, args);
+    });
+  };
+
+  // Convenience version of a common use case of `map`: fetching a property.
+  _.pluck = function(obj, key) {
+    return _.map(obj, function(value){ return value[key]; });
+  };
+
+  // Return the maximum element or (element-based computation).
+  _.max = function(obj, iterator, context) {
+    if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj);
+    if (!iterator && _.isEmpty(obj)) return -Infinity;
+    var result = {computed : -Infinity};
+    each(obj, function(value, index, list) {
+      var computed = iterator ? iterator.call(context, value, index, list) : value;
+      computed >= result.computed && (result = {value : value, computed : computed});
+    });
+    return result.value;
+  };
+
+  // Return the minimum element (or element-based computation).
+  _.min = function(obj, iterator, context) {
+    if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj);
+    if (!iterator && _.isEmpty(obj)) return Infinity;
+    var result = {computed : Infinity};
+    each(obj, function(value, index, list) {
+      var computed = iterator ? iterator.call(context, value, index, list) : value;
+      computed < result.computed && (result = {value : value, computed : computed});
+    });
+    return result.value;
+  };
+
+  // Shuffle an array.
+  _.shuffle = function(obj) {
+    var shuffled = [], rand;
+    each(obj, function(value, index, list) {
+      if (index == 0) {
+        shuffled[0] = value;
+      } else {
+        rand = Math.floor(Math.random() * (index + 1));
+        shuffled[index] = shuffled[rand];
+        shuffled[rand] = value;
+      }
+    });
+    return shuffled;
+  };
+
+  // Sort the object's values by a criterion produced by an iterator.
+  _.sortBy = function(obj, iterator, context) {
+    return _.pluck(_.map(obj, function(value, index, list) {
+      return {
+        value : value,
+        criteria : iterator.call(context, value, index, list)
+      };
+    }).sort(function(left, right) {
+      var a = left.criteria, b = right.criteria;
+      return a < b ? -1 : a > b ? 1 : 0;
+    }), 'value');
+  };
+
+  // Groups the object's values by a criterion. Pass either a string attribute
+  // to group by, or a function that returns the criterion.
+  _.groupBy = function(obj, val) {
+    var result = {};
+    var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; };
+    each(obj, function(value, index) {
+      var key = iterator(value, index);
+      (result[key] || (result[key] = [])).push(value);
+    });
+    return result;
+  };
+
+  // Use a comparator function to figure out at what index an object should
+  // be inserted so as to maintain order. Uses binary search.
+  _.sortedIndex = function(array, obj, iterator) {
+    iterator || (iterator = _.identity);
+    var low = 0, high = array.length;
+    while (low < high) {
+      var mid = (low + high) >> 1;
+      iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid;
+    }
+    return low;
+  };
+
+  // Safely convert anything iterable into a real, live array.
+  _.toArray = function(iterable) {
+    if (!iterable)                return [];
+    if (iterable.toArray)         return iterable.toArray();
+    if (_.isArray(iterable))      return slice.call(iterable);
+    if (_.isArguments(iterable))  return slice.call(iterable);
+    return _.values(iterable);
+  };
+
+  // Return the number of elements in an object.
+  _.size = function(obj) {
+    return _.toArray(obj).length;
+  };
+
+  // Array Functions
+  // ---------------
+
+  // Get the first element of an array. Passing **n** will return the first N
+  // values in the array. Aliased as `head`. The **guard** check allows it to work
+  // with `_.map`.
+  _.first = _.head = function(array, n, guard) {
+    return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
+  };
+
+  // Returns everything but the last entry of the array. Especcialy useful on
+  // the arguments object. Passing **n** will return all the values in
+  // the array, excluding the last N. The **guard** check allows it to work with
+  // `_.map`.
+  _.initial = function(array, n, guard) {
+    return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
+  };
+
+  // Get the last element of an array. Passing **n** will return the last N
+  // values in the array. The **guard** check allows it to work with `_.map`.
+  _.last = function(array, n, guard) {
+    if ((n != null) && !guard) {
+      return slice.call(array, Math.max(array.length - n, 0));
+    } else {
+      return array[array.length - 1];
+    }
+  };
+
+  // Returns everything but the first entry of the array. Aliased as `tail`.
+  // Especially useful on the arguments object. Passing an **index** will return
+  // the rest of the values in the array from that index onward. The **guard**
+  // check allows it to work with `_.map`.
+  _.rest = _.tail = function(array, index, guard) {
+    return slice.call(array, (index == null) || guard ? 1 : index);
+  };
+
+  // Trim out all falsy values from an array.
+  _.compact = function(array) {
+    return _.filter(array, function(value){ return !!value; });
+  };
+
+  // Return a completely flattened version of an array.
+  _.flatten = function(array, shallow) {
+    return _.reduce(array, function(memo, value) {
+      if (_.isArray(value)) return memo.concat(shallow ? value : _.flatten(value));
+      memo[memo.length] = value;
+      return memo;
+    }, []);
+  };
+
+  // Return a version of the array that does not contain the specified value(s).
+  _.without = function(array) {
+    return _.difference(array, slice.call(arguments, 1));
+  };
+
+  // Produce a duplicate-free version of the array. If the array has already
+  // been sorted, you have the option of using a faster algorithm.
+  // Aliased as `unique`.
+  _.uniq = _.unique = function(array, isSorted, iterator) {
+    var initial = iterator ? _.map(array, iterator) : array;
+    var result = [];
+    _.reduce(initial, function(memo, el, i) {
+      if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) {
+        memo[memo.length] = el;
+        result[result.length] = array[i];
+      }
+      return memo;
+    }, []);
+    return result;
+  };
+
+  // Produce an array that contains the union: each distinct element from all of
+  // the passed-in arrays.
+  _.union = function() {
+    return _.uniq(_.flatten(arguments, true));
+  };
+
+  // Produce an array that contains every item shared between all the
+  // passed-in arrays. (Aliased as "intersect" for back-compat.)
+  _.intersection = _.intersect = function(array) {
+    var rest = slice.call(arguments, 1);
+    return _.filter(_.uniq(array), function(item) {
+      return _.every(rest, function(other) {
+        return _.indexOf(other, item) >= 0;
+      });
+    });
+  };
+
+  // Take the difference between one array and a number of other arrays.
+  // Only the elements present in just the first array will remain.
+  _.difference = function(array) {
+    var rest = _.flatten(slice.call(arguments, 1));
+    return _.filter(array, function(value){ return !_.include(rest, value); });
+  };
+
+  // Zip together multiple lists into a single array -- elements that share
+  // an index go together.
+  _.zip = function() {
+    var args = slice.call(arguments);
+    var length = _.max(_.pluck(args, 'length'));
+    var results = new Array(length);
+    for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
+    return results;
+  };
+
+  // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+  // we need this function. Return the position of the first occurrence of an
+  // item in an array, or -1 if the item is not included in the array.
+  // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+  // If the array is large and already in sort order, pass `true`
+  // for **isSorted** to use binary search.
+  _.indexOf = function(array, item, isSorted) {
+    if (array == null) return -1;
+    var i, l;
+    if (isSorted) {
+      i = _.sortedIndex(array, item);
+      return array[i] === item ? i : -1;
+    }
+    if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
+    for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i;
+    return -1;
+  };
+
+  // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+  _.lastIndexOf = function(array, item) {
+    if (array == null) return -1;
+    if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
+    var i = array.length;
+    while (i--) if (i in array && array[i] === item) return i;
+    return -1;
+  };
+
+  // Generate an integer Array containing an arithmetic progression. A port of
+  // the native Python `range()` function. See
+  // [the Python documentation](http://docs.python.org/library/functions.html#range).
+  _.range = function(start, stop, step) {
+    if (arguments.length <= 1) {
+      stop = start || 0;
+      start = 0;
+    }
+    step = arguments[2] || 1;
+
+    var len = Math.max(Math.ceil((stop - start) / step), 0);
+    var idx = 0;
+    var range = new Array(len);
+
+    while(idx < len) {
+      range[idx++] = start;
+      start += step;
+    }
+
+    return range;
+  };
+
+  // Function (ahem) Functions
+  // ------------------
+
+  // Reusable constructor function for prototype setting.
+  var ctor = function(){};
+
+  // Create a function bound to a given object (assigning `this`, and arguments,
+  // optionally). Binding with arguments is also known as `curry`.
+  // Delegates to **ECMAScript 5**'s native `Function.bind` if available.
+  // We check for `func.bind` first, to fail fast when `func` is undefined.
+  _.bind = function bind(func, context) {
+    var bound, args;
+    if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+    if (!_.isFunction(func)) throw new TypeError;
+    args = slice.call(arguments, 2);
+    return bound = function() {
+      if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
+      ctor.prototype = func.prototype;
+      var self = new ctor;
+      var result = func.apply(self, args.concat(slice.call(arguments)));
+      if (Object(result) === result) return result;
+      return self;
+    };
+  };
+
+  // Bind all of an object's methods to that object. Useful for ensuring that
+  // all callbacks defined on an object belong to it.
+  _.bindAll = function(obj) {
+    var funcs = slice.call(arguments, 1);
+    if (funcs.length == 0) funcs = _.functions(obj);
+    each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+    return obj;
+  };
+
+  // Memoize an expensive function by storing its results.
+  _.memoize = function(func, hasher) {
+    var memo = {};
+    hasher || (hasher = _.identity);
+    return function() {
+      var key = hasher.apply(this, arguments);
+      return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+    };
+  };
+
+  // Delays a function for the given number of milliseconds, and then calls
+  // it with the arguments supplied.
+  _.delay = function(func, wait) {
+    var args = slice.call(arguments, 2);
+    return setTimeout(function(){ return func.apply(func, args); }, wait);
+  };
+
+  // Defers a function, scheduling it to run after the current call stack has
+  // cleared.
+  _.defer = function(func) {
+    return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+  };
+
+  // Returns a function, that, when invoked, will only be triggered at most once
+  // during a given window of time.
+  _.throttle = function(func, wait) {
+    var context, args, timeout, throttling, more;
+    var whenDone = _.debounce(function(){ more = throttling = false; }, wait);
+    return function() {
+      context = this; args = arguments;
+      var later = function() {
+        timeout = null;
+        if (more) func.apply(context, args);
+        whenDone();
+      };
+      if (!timeout) timeout = setTimeout(later, wait);
+      if (throttling) {
+        more = true;
+      } else {
+        func.apply(context, args);
+      }
+      whenDone();
+      throttling = true;
+    };
+  };
+
+  // Returns a function, that, as long as it continues to be invoked, will not
+  // be triggered. The function will be called after it stops being called for
+  // N milliseconds.
+  _.debounce = function(func, wait) {
+    var timeout;
+    return function() {
+      var context = this, args = arguments;
+      var later = function() {
+        timeout = null;
+        func.apply(context, args);
+      };
+      clearTimeout(timeout);
+      timeout = setTimeout(later, wait);
+    };
+  };
+
+  // Returns a function that will be executed at most one time, no matter how
+  // often you call it. Useful for lazy initialization.
+  _.once = function(func) {
+    var ran = false, memo;
+    return function() {
+      if (ran) return memo;
+      ran = true;
+      return memo = func.apply(this, arguments);
+    };
+  };
+
+  // Returns the first function passed as an argument to the second,
+  // allowing you to adjust arguments, run code before and after, and
+  // conditionally execute the original function.
+  _.wrap = function(func, wrapper) {
+    return function() {
+      var args = [func].concat(slice.call(arguments, 0));
+      return wrapper.apply(this, args);
+    };
+  };
+
+  // Returns a function that is the composition of a list of functions, each
+  // consuming the return value of the function that follows.
+  _.compose = function() {
+    var funcs = arguments;
+    return function() {
+      var args = arguments;
+      for (var i = funcs.length - 1; i >= 0; i--) {
+        args = [funcs[i].apply(this, args)];
+      }
+      return args[0];
+    };
+  };
+
+  // Returns a function that will only be executed after being called N times.
+  _.after = function(times, func) {
+    if (times <= 0) return func();
+    return function() {
+      if (--times < 1) { return func.apply(this, arguments); }
+    };
+  };
+
+  // Object Functions
+  // ----------------
+
+  // Retrieve the names of an object's properties.
+  // Delegates to **ECMAScript 5**'s native `Object.keys`
+  _.keys = nativeKeys || function(obj) {
+    if (obj !== Object(obj)) throw new TypeError('Invalid object');
+    var keys = [];
+    for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
+    return keys;
+  };
+
+  // Retrieve the values of an object's properties.
+  _.values = function(obj) {
+    return _.map(obj, _.identity);
+  };
+
+  // Return a sorted list of the function names available on the object.
+  // Aliased as `methods`
+  _.functions = _.methods = function(obj) {
+    var names = [];
+    for (var key in obj) {
+      if (_.isFunction(obj[key])) names.push(key);
+    }
+    return names.sort();
+  };
+
+  // Extend a given object with all the properties in passed-in object(s).
+  _.extend = function(obj) {
+    each(slice.call(arguments, 1), function(source) {
+      for (var prop in source) {
+        obj[prop] = source[prop];
+      }
+    });
+    return obj;
+  };
+
+  // Fill in a given object with default properties.
+  _.defaults = function(obj) {
+    each(slice.call(arguments, 1), function(source) {
+      for (var prop in source) {
+        if (obj[prop] == null) obj[prop] = source[prop];
+      }
+    });
+    return obj;
+  };
+
+  // Create a (shallow-cloned) duplicate of an object.
+  _.clone = function(obj) {
+    if (!_.isObject(obj)) return obj;
+    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+  };
+
+  // Invokes interceptor with the obj, and then returns obj.
+  // The primary purpose of this method is to "tap into" a method chain, in
+  // order to perform operations on intermediate results within the chain.
+  _.tap = function(obj, interceptor) {
+    interceptor(obj);
+    return obj;
+  };
+
+  // Internal recursive comparison function.
+  function eq(a, b, stack) {
+    // Identical objects are equal. `0 === -0`, but they aren't identical.
+    // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal.
+    if (a === b) return a !== 0 || 1 / a == 1 / b;
+    // A strict comparison is necessary because `null == undefined`.
+    if (a == null || b == null) return a === b;
+    // Unwrap any wrapped objects.
+    if (a._chain) a = a._wrapped;
+    if (b._chain) b = b._wrapped;
+    // Invoke a custom `isEqual` method if one is provided.
+    if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b);
+    if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a);
+    // Compare `[[Class]]` names.
+    var className = toString.call(a);
+    if (className != toString.call(b)) return false;
+    switch (className) {
+      // Strings, numbers, dates, and booleans are compared by value.
+      case '[object String]':
+        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+        // equivalent to `new String("5")`.
+        return a == String(b);
+      case '[object Number]':
+        // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
+        // other numeric values.
+        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
+      case '[object Date]':
+      case '[object Boolean]':
+        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+        // millisecond representations. Note that invalid dates with millisecond representations
+        // of `NaN` are not equivalent.
+        return +a == +b;
+      // RegExps are compared by their source patterns and flags.
+      case '[object RegExp]':
+        return a.source == b.source &&
+               a.global == b.global &&
+               a.multiline == b.multiline &&
+               a.ignoreCase == b.ignoreCase;
+    }
+    if (typeof a != 'object' || typeof b != 'object') return false;
+    // Assume equality for cyclic structures. The algorithm for detecting cyclic
+    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+    var length = stack.length;
+    while (length--) {
+      // Linear search. Performance is inversely proportional to the number of
+      // unique nested structures.
+      if (stack[length] == a) return true;
+    }
+    // Add the first object to the stack of traversed objects.
+    stack.push(a);
+    var size = 0, result = true;
+    // Recursively compare objects and arrays.
+    if (className == '[object Array]') {
+      // Compare array lengths to determine if a deep comparison is necessary.
+      size = a.length;
+      result = size == b.length;
+      if (result) {
+        // Deep compare the contents, ignoring non-numeric properties.
+        while (size--) {
+          // Ensure commutative equality for sparse arrays.
+          if (!(result = size in a == size in b && eq(a[size], b[size], stack))) break;
+        }
+      }
+    } else {
+      // Objects with different constructors are not equivalent.
+      if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false;
+      // Deep compare objects.
+      for (var key in a) {
+        if (_.has(a, key)) {
+          // Count the expected number of properties.
+          size++;
+          // Deep compare each member.
+          if (!(result = _.has(b, key) && eq(a[key], b[key], stack))) break;
+        }
+      }
+      // Ensure that both objects contain the same number of properties.
+      if (result) {
+        for (key in b) {
+          if (_.has(b, key) && !(size--)) break;
+        }
+        result = !size;
+      }
+    }
+    // Remove the first object from the stack of traversed objects.
+    stack.pop();
+    return result;
+  }
+
+  // Perform a deep comparison to check if two objects are equal.
+  _.isEqual = function(a, b) {
+    return eq(a, b, []);
+  };
+
+  // Is a given array, string, or object empty?
+  // An "empty" object has no enumerable own-properties.
+  _.isEmpty = function(obj) {
+    if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+    for (var key in obj) if (_.has(obj, key)) return false;
+    return true;
+  };
+
+  // Is a given value a DOM element?
+  _.isElement = function(obj) {
+    return !!(obj && obj.nodeType == 1);
+  };
+
+  // Is a given value an array?
+  // Delegates to ECMA5's native Array.isArray
+  _.isArray = nativeIsArray || function(obj) {
+    return toString.call(obj) == '[object Array]';
+  };
+
+  // Is a given variable an object?
+  _.isObject = function(obj) {
+    return obj === Object(obj);
+  };
+
+  // Is a given variable an arguments object?
+  _.isArguments = function(obj) {
+    return toString.call(obj) == '[object Arguments]';
+  };
+  if (!_.isArguments(arguments)) {
+    _.isArguments = function(obj) {
+      return !!(obj && _.has(obj, 'callee'));
+    };
+  }
+
+  // Is a given value a function?
+  _.isFunction = function(obj) {
+    return toString.call(obj) == '[object Function]';
+  };
+
+  // Is a given value a string?
+  _.isString = function(obj) {
+    return toString.call(obj) == '[object String]';
+  };
+
+  // Is a given value a number?
+  _.isNumber = function(obj) {
+    return toString.call(obj) == '[object Number]';
+  };
+
+  // Is the given value `NaN`?
+  _.isNaN = function(obj) {
+    // `NaN` is the only value for which `===` is not reflexive.
+    return obj !== obj;
+  };
+
+  // Is a given value a boolean?
+  _.isBoolean = function(obj) {
+    return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
+  };
+
+  // Is a given value a date?
+  _.isDate = function(obj) {
+    return toString.call(obj) == '[object Date]';
+  };
+
+  // Is the given value a regular expression?
+  _.isRegExp = function(obj) {
+    return toString.call(obj) == '[object RegExp]';
+  };
+
+  // Is a given value equal to null?
+  _.isNull = function(obj) {
+    return obj === null;
+  };
+
+  // Is a given variable undefined?
+  _.isUndefined = function(obj) {
+    return obj === void 0;
+  };
+
+  // Has own property?
+  _.has = function(obj, key) {
+    return hasOwnProperty.call(obj, key);
+  };
+
+  // Utility Functions
+  // -----------------
+
+  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+  // previous owner. Returns a reference to the Underscore object.
+  _.noConflict = function() {
+    root._ = previousUnderscore;
+    return this;
+  };
+
+  // Keep the identity function around for default iterators.
+  _.identity = function(value) {
+    return value;
+  };
+
+  // Run a function **n** times.
+  _.times = function (n, iterator, context) {
+    for (var i = 0; i < n; i++) iterator.call(context, i);
+  };
+
+  // Escape a string for HTML interpolation.
+  _.escape = function(string) {
+    return (''+string).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#x27;').replace(/\//g,'&#x2F;');
+  };
+
+  // Add your own custom functions to the Underscore object, ensuring that
+  // they're correctly added to the OOP wrapper as well.
+  _.mixin = function(obj) {
+    each(_.functions(obj), function(name){
+      addToWrapper(name, _[name] = obj[name]);
+    });
+  };
+
+  // Generate a unique integer id (unique within the entire client session).
+  // Useful for temporary DOM ids.
+  var idCounter = 0;
+  _.uniqueId = function(prefix) {
+    var id = idCounter++;
+    return prefix ? prefix + id : id;
+  };
+
+  // By default, Underscore uses ERB-style template delimiters, change the
+  // following template settings to use alternative delimiters.
+  _.templateSettings = {
+    evaluate    : /<%([\s\S]+?)%>/g,
+    interpolate : /<%=([\s\S]+?)%>/g,
+    escape      : /<%-([\s\S]+?)%>/g
+  };
+
+  // When customizing `templateSettings`, if you don't want to define an
+  // interpolation, evaluation or escaping regex, we need one that is
+  // guaranteed not to match.
+  var noMatch = /.^/;
+
+  // Within an interpolation, evaluation, or escaping, remove HTML escaping
+  // that had been previously added.
+  var unescape = function(code) {
+    return code.replace(/\\\\/g, '\\').replace(/\\'/g, "'");
+  };
+
+  // JavaScript micro-templating, similar to John Resig's implementation.
+  // Underscore templating handles arbitrary delimiters, preserves whitespace,
+  // and correctly escapes quotes within interpolated code.
+  _.template = function(str, data) {
+    var c  = _.templateSettings;
+    var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' +
+      'with(obj||{}){__p.push(\'' +
+      str.replace(/\\/g, '\\\\')
+         .replace(/'/g, "\\'")
+         .replace(c.escape || noMatch, function(match, code) {
+           return "',_.escape(" + unescape(code) + "),'";
+         })
+         .replace(c.interpolate || noMatch, function(match, code) {
+           return "'," + unescape(code) + ",'";
+         })
+         .replace(c.evaluate || noMatch, function(match, code) {
+           return "');" + unescape(code).replace(/[\r\n\t]/g, ' ') + ";__p.push('";
+         })
+         .replace(/\r/g, '\\r')
+         .replace(/\n/g, '\\n')
+         .replace(/\t/g, '\\t')
+         + "');}return __p.join('');";
+    var func = new Function('obj', '_', tmpl);
+    if (data) return func(data, _);
+    return function(data) {
+      return func.call(this, data, _);
+    };
+  };
+
+  // Add a "chain" function, which will delegate to the wrapper.
+  _.chain = function(obj) {
+    return _(obj).chain();
+  };
+
+  // The OOP Wrapper
+  // ---------------
+
+  // If Underscore is called as a function, it returns a wrapped object that
+  // can be used OO-style. This wrapper holds altered versions of all the
+  // underscore functions. Wrapped objects may be chained.
+  var wrapper = function(obj) { this._wrapped = obj; };
+
+  // Expose `wrapper.prototype` as `_.prototype`
+  _.prototype = wrapper.prototype;
+
+  // Helper function to continue chaining intermediate results.
+  var result = function(obj, chain) {
+    return chain ? _(obj).chain() : obj;
+  };
+
+  // A method to easily add functions to the OOP wrapper.
+  var addToWrapper = function(name, func) {
+    wrapper.prototype[name] = function() {
+      var args = slice.call(arguments);
+      unshift.call(args, this._wrapped);
+      return result(func.apply(_, args), this._chain);
+    };
+  };
+
+  // Add all of the Underscore functions to the wrapper object.
+  _.mixin(_);
+
+  // Add all mutator Array functions to the wrapper.
+  each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+    var method = ArrayProto[name];
+    wrapper.prototype[name] = function() {
+      var wrapped = this._wrapped;
+      method.apply(wrapped, arguments);
+      var length = wrapped.length;
+      if ((name == 'shift' || name == 'splice') && length === 0) delete wrapped[0];
+      return result(wrapped, this._chain);
+    };
+  });
+
+  // Add all accessor Array functions to the wrapper.
+  each(['concat', 'join', 'slice'], function(name) {
+    var method = ArrayProto[name];
+    wrapper.prototype[name] = function() {
+      return result(method.apply(this._wrapped, arguments), this._chain);
+    };
+  });
+
+  // Start chaining a wrapped Underscore object.
+  wrapper.prototype.chain = function() {
+    this._chain = true;
+    return this;
+  };
+
+  // Extracts the result from a wrapped and chained object.
+  wrapper.prototype.value = function() {
+    return this._wrapped;
+  };
+
+}).call(this);

externals/fmt/doc/html/_static/underscore.js

@@ -0,0 +1,31 @@
+// Underscore.js 1.3.1
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore is freely distributable under the MIT license.
+// Portions of Underscore are inspired or borrowed from Prototype,
+// Oliver Steele's Functional, and John Resig's Micro-Templating.
+// For all details and documentation:
+// http://documentcloud.github.com/underscore
+(function(){function q(a,c,d){if(a===c)return a!==0||1/a==1/c;if(a==null||c==null)return a===c;if(a._chain)a=a._wrapped;if(c._chain)c=c._wrapped;if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return false;switch(e){case "[object String]":return a==String(c);case "[object Number]":return a!=+a?c!=+c:a==0?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source==
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externals/fmt/doc/html/contents.html

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externals/fmt/doc/html/genindex.html

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+      <li><a href="api.html#_CPPv4I00EN3fmt3argEN6detail9named_argI4Char1TEEPK4CharRK1T">fmt::arg (C++ function)</a>
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+      <li><a href="api.html#_CPPv4N3fmt6detail6buffer5clearEv">fmt::detail::buffer::clear (C++ function)</a>
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+      <li><a href="api.html#_CPPv4N3fmt6detail6buffer4dataEv">fmt::detail::buffer::data (C++ function)</a>, <a href="api.html#_CPPv4NK3fmt6detail6buffer4dataEv">[1]</a>
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+      <li><a href="api.html#_CPPv4NK3fmt6detail6buffer4sizeEv">fmt::detail::buffer::size (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt24dynamic_format_arg_storeE">fmt::dynamic_format_arg_store (C++ class)</a>
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+      <li><a href="api.html#_CPPv4N3fmt2fgEN6detail10color_typeE">fmt::fg (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4IDpEN3fmt6formatENSt6stringE13format_stringIDp1TEDpRR1T">fmt::format (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt16format_arg_storeE">fmt::format_arg_store (C++ class)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt11format_argsE">fmt::format_args (C++ type)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt14format_contextE">fmt::format_context (C++ type)</a>
+</li>
+  </ul></td>
+  <td style="width: 33%; vertical-align: top;"><ul>
+      <li><a href="api.html#_CPPv4IDpEN3fmt13format_stringE">fmt::format_string (C++ type)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt19format_system_errorERN6detail6bufferIcEEiPKc">fmt::format_system_error (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt9format_toE8OutputIt8OutputIt13format_stringIDp1TEDpRR1T">fmt::format_to (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt11format_to_nE18format_to_n_resultI8OutputItE8OutputIt6size_t13format_stringIDp1TEDpRR1T">fmt::format_to_n (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt18format_to_n_resultE">fmt::format_to_n_result (C++ struct)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt18format_to_n_result3outE">fmt::format_to_n_result::out (C++ member)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt18format_to_n_result4sizeE">fmt::format_to_n_result::size (C++ member)</a>
+</li>
+      <li><a href="api.html#_CPPv4IDpEN3fmt14formatted_sizeE6size_t13format_stringIDp1TEDpRR1T">fmt::formatted_size (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0Dp0EN3fmt7fprintfEiPNSt4FILEERK1SDpRK1T">fmt::fprintf (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt6gmtimeENSt6time_tE">fmt::gmtime (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt12group_digitsE17group_digits_viewI1TE1T">fmt::group_digits (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt7is_charE">fmt::is_char (C++ struct)</a>
+</li>
+      <li><a href="api.html#_CPPv4I00EN3fmt4joinE9join_viewI2It8SentinelE2It8Sentinel11string_view">fmt::join (C++ function)</a>, <a href="api.html#_CPPv4I0EN3fmt4joinE9join_viewIN6detail10iterator_tI5RangeEEN6detail10sentinel_tI5RangeEEERR5Range11string_view">[1]</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt9localtimeENSt6time_tE">fmt::localtime (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt16make_format_argsE16format_arg_storeI7ContextDp14remove_cvref_tI4ArgsEEDpRR4Args">fmt::make_format_args (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I_N15detail_exported12fixed_stringEEN3fmtli2_aEDav">fmt::operator&#34;&#34;_a (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I_N15detail_exported12fixed_stringEEN3fmtli3_cfEDav">fmt::operator&#34;&#34;_cf (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt7ostreamE">fmt::ostream (C++ class)</a>
+</li>
+      <li><a href="api.html#_CPPv4IDpEN3fmt7ostream11output_fileE7ostream12cstring_viewDp1T">fmt::ostream::output_file (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4IDpEN3fmt7ostream5printEv13format_stringIDp1TEDpRR1T">fmt::ostream::print (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt5printEvRK10text_styleRK1SDpRK4Args">fmt::print (C++ function)</a>, <a href="api.html#_CPPv4IDpEN3fmt5printEv13format_stringIDp1TEDpRR1T">[1]</a>, <a href="api.html#_CPPv4IDpEN3fmt5printEvPNSt4FILEE13format_stringIDp1TEDpRR1T">[2]</a>, <a href="api.html#_CPPv4IDpEN3fmt5printEvRNSt7ostreamE13format_stringIDp1TEDpRR1T">[3]</a>
+</li>
+      <li><a href="api.html#_CPPv4I0DpEN3fmt6printfEiRK1SDpRK1T">fmt::printf (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt3ptrEPKv1T">fmt::ptr (C++ function)</a>, <a href="api.html#_CPPv4I0EN3fmt3ptrEPKvRKNSt10shared_ptrI1TEE">[1]</a>, <a href="api.html#_CPPv4I0EN3fmt3ptrEPKvRKNSt10unique_ptrI1TEE">[2]</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt7runtimeE11string_view">fmt::runtime (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0Dp0EN3fmt7sprintfENSt12basic_stringI4CharEERK1SDpRK1T">fmt::sprintf (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt8streamedEN6detail13streamed_viewI1TEERK1T">fmt::streamed (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt11string_viewE">fmt::string_view (C++ type)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt6styledEN6detail10styled_argI14remove_cvref_tI1TEEERK1T10text_style">fmt::styled (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4IDpEN3fmt12system_errorENSt12system_errorEi13format_stringIDp1TEDpRR1T">fmt::system_error (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt9to_stringENSt6stringERK1T">fmt::to_string (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt10to_wstringENSt7wstringERK1T">fmt::to_wstring (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4I0EN3fmt10underlyingE12underlying_tI4EnumE4Enum">fmt::underlying (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt7vformatE11string_view11format_args">fmt::vformat (C++ function)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt6vprintE11string_view11format_args">fmt::vprint (C++ function)</a>, <a href="api.html#_CPPv4N3fmt6vprintEPNSt4FILEE11string_view11format_args">[1]</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt15wformat_contextE">fmt::wformat_context (C++ type)</a>
+</li>
+      <li><a href="api.html#_CPPv4N3fmt12wstring_viewE">fmt::wstring_view (C++ type)</a>
+</li>
+      <li><a href="api.html#c.FMT_COMPILE">FMT_COMPILE (C macro)</a>
+</li>
+      <li><a href="api.html#c.FMT_STRING">FMT_STRING (C macro)</a>
+</li>
+  </ul></td>
+</tr></table>
+
+
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+    <h1>{fmt}</h1>
+    <p class="lead">A modern formatting library</p>
+    <div class="btn-group" role="group">
+      
+      <a class="btn btn-success"
+         href="https://github.com/fmtlib/fmt/releases/download/9.1.0/fmt-9.1.0.zip">
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+        <li><a href="https://github.com/fmtlib/fmt/releases/download/9.1.0/fmt-9.1.0.zip">Version 9.1.0
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+      
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+        <li><a href="https://github.com/fmtlib/fmt/releases/download/9.0.0/fmt-9.0.0.zip">Version 9.0.0
+          </a></li>
+      
+      
+        <li><a href="https://github.com/fmtlib/fmt/releases/download/8.1.1/fmt-8.1.1.zip">Version 8.1.1
+          </a></li>
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+<div class="tb-container">
+  <div class="row">
+    
+
+    <div class="content">
+      
+  <section id="overview">
+<h1>Overview<a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h1>
+<p><strong>{fmt}</strong> is an open-source formatting library providing a fast and safe
+alternative to C stdio and C++ iostreams.</p>
+<div class="panel panel-default">
+  <div class="panel-heading">What users say:</div>
+  <div class="panel-body">
+    Thanks for creating this library. It’s been a hole in C++ for
+    a long time. I’ve used both <code>boost::format</code> and
+    <code>loki::SPrintf</code>, and neither felt like the right answer.
+    This does.
+  </div>
+</div><section id="format-api">
+<span id="format-api-intro"></span><h2>Format API<a class="headerlink" href="#format-api" title="Permalink to this headline">¶</a></h2>
+<p>The format API is similar in spirit to the C <code class="docutils literal notranslate"><span class="pre">printf</span></code> family of function but
+is safer, simpler and several times <a class="reference external" href="https://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html">faster</a>
+than common standard library implementations.
+The <a class="reference external" href="syntax.html">format string syntax</a> is similar to the one used by
+<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str.format">str.format</a> in
+Python:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">std</span><span class="o">::</span><span class="n">string</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;The answer is {}.&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>The <code class="docutils literal notranslate"><span class="pre">fmt::format</span></code> function returns a string “The answer is 42.”. You can use
+<code class="docutils literal notranslate"><span class="pre">fmt::memory_buffer</span></code> to avoid constructing <code class="docutils literal notranslate"><span class="pre">std::string</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="k">auto</span><span class="w"> </span><span class="n">out</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">memory_buffer</span><span class="p">();</span><span class="w"></span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format_to</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">back_inserter</span><span class="p">(</span><span class="n">out</span><span class="p">),</span><span class="w"></span>
+<span class="w">          </span><span class="s">&quot;For a moment, {} happened.&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;nothing&quot;</span><span class="p">);</span><span class="w"></span>
+<span class="k">auto</span><span class="w"> </span><span class="n">data</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">out</span><span class="p">.</span><span class="n">data</span><span class="p">();</span><span class="w"> </span><span class="c1">// pointer to the formatted data</span>
+<span class="k">auto</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">out</span><span class="p">.</span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="c1">// size of the formatted data</span>
+</pre></div>
+</div>
+<p>The <code class="docutils literal notranslate"><span class="pre">fmt::print</span></code> function performs formatting and writes the result to a stream:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;System error code = {}</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">errno</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>If you omit the file argument the function will print to <code class="docutils literal notranslate"><span class="pre">stdout</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;Don&#39;t {}</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;panic&quot;</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>The format API also supports positional arguments useful for localization:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;I&#39;d rather be {1} than {0}.&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;right&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;happy&quot;</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>You can pass named arguments with <code class="docutils literal notranslate"><span class="pre">fmt::arg</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;Hello, {name}! The answer is {number}. Goodbye, {name}.&quot;</span><span class="p">,</span><span class="w"></span>
+<span class="w">           </span><span class="n">fmt</span><span class="o">::</span><span class="n">arg</span><span class="p">(</span><span class="s">&quot;name&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;World&quot;</span><span class="p">),</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">arg</span><span class="p">(</span><span class="s">&quot;number&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">));</span><span class="w"></span>
+</pre></div>
+</div>
+<p>If your compiler supports C++11 user-defined literals, the suffix <code class="docutils literal notranslate"><span class="pre">_a</span></code> offers
+an alternative, slightly terser syntax for named arguments:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="k">using</span><span class="w"> </span><span class="k">namespace</span><span class="w"> </span><span class="nn">fmt</span><span class="o">::</span><span class="nn">literals</span><span class="p">;</span><span class="w"></span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;Hello, {name}! The answer is {number}. Goodbye, {name}.&quot;</span><span class="p">,</span><span class="w"></span>
+<span class="w">           </span><span class="s">&quot;name&quot;</span><span class="n">_a</span><span class="o">=</span><span class="s">&quot;World&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;number&quot;</span><span class="n">_a</span><span class="o">=</span><span class="mi">42</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+</section>
+<section id="safety">
+<span id="id1"></span><h2>Safety<a class="headerlink" href="#safety" title="Permalink to this headline">¶</a></h2>
+<p>The library is fully type safe, automatic memory management prevents buffer
+overflow, errors in format strings are reported using exceptions or at compile
+time. For example, the code</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;The answer is {:d}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;forty-two&quot;</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>throws the <code class="docutils literal notranslate"><span class="pre">format_error</span></code> exception because the argument <code class="docutils literal notranslate"><span class="pre">&quot;forty-two&quot;</span></code> is a
+string while the format code <code class="docutils literal notranslate"><span class="pre">d</span></code> only applies to integers.</p>
+<p>The code</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">format</span><span class="p">(</span><span class="n">FMT_STRING</span><span class="p">(</span><span class="s">&quot;The answer is {:d}&quot;</span><span class="p">),</span><span class="w"> </span><span class="s">&quot;forty-two&quot;</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>reports a compile-time error on compilers that support relaxed <code class="docutils literal notranslate"><span class="pre">constexpr</span></code>.
+See <a class="reference external" href="api.html#compile-time-format-string-checks">here</a> for details.</p>
+<p>The following code</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span>fmt::format(&quot;Cyrillic letter {}&quot;, L&#39;\x42e&#39;);
+</pre></div>
+</div>
+<p>produces a compile-time error because wide character <code class="docutils literal notranslate"><span class="pre">L'\x42e'</span></code> cannot be
+formatted into a narrow string. For comparison, writing a wide character to
+<code class="docutils literal notranslate"><span class="pre">std::ostream</span></code> results in its numeric value being written to the stream
+(i.e. 1070 instead of letter ‘ю’ which is represented by <code class="docutils literal notranslate"><span class="pre">L'\x42e'</span></code> if we
+use Unicode) which is rarely desirable.</p>
+</section>
+<section id="compact-binary-code">
+<h2>Compact Binary Code<a class="headerlink" href="#compact-binary-code" title="Permalink to this headline">¶</a></h2>
+<p>The library produces compact per-call compiled code. For example
+(<a class="reference external" href="https://godbolt.org/g/TZU4KF">godbolt</a>),</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fmt/core.h&gt;</span><span class="cp"></span>
+
+<span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"></span>
+<span class="w">  </span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;The answer is {}.&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span><span class="w"></span>
+<span class="p">}</span><span class="w"></span>
+</pre></div>
+</div>
+<p>compiles to just</p>
+<div class="highlight-asm notranslate"><div class="highlight"><pre><span></span>main: # @main
+  sub rsp, 24
+  mov qword ptr [rsp], 42
+  mov rcx, rsp
+  mov edi, offset .L.str
+  mov esi, 17
+  mov edx, 1
+  call fmt::v7::vprint(fmt::v7::basic_string_view&lt;char&gt;, fmt::v7::format_args)
+  xor eax, eax
+  add rsp, 24
+  ret
+.L.str:
+  .asciz &quot;The answer is {}.&quot;
+</pre></div>
+</div>
+</section>
+<section id="portability">
+<span id="id2"></span><h2>Portability<a class="headerlink" href="#portability" title="Permalink to this headline">¶</a></h2>
+<p>The library is highly portable and relies only on a small set of C++11 features:</p>
+<ul class="simple">
+<li><p>variadic templates</p></li>
+<li><p>type traits</p></li>
+<li><p>rvalue references</p></li>
+<li><p>decltype</p></li>
+<li><p>trailing return types</p></li>
+<li><p>deleted functions</p></li>
+<li><p>alias templates</p></li>
+</ul>
+<p>These are available in GCC 4.8, Clang 3.4, MSVC 19.0 (2015) and more recent
+compiler version. For older compilers use {fmt} <a class="reference external" href="https://github.com/fmtlib/fmt/releases/tag/4.1.0">version 4.x</a> which is maintained and
+only requires C++98.</p>
+<p>The output of all formatting functions is consistent across platforms.
+For example,</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;{}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">std</span><span class="o">::</span><span class="n">numeric_limits</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;::</span><span class="n">infinity</span><span class="p">());</span><span class="w"></span>
+</pre></div>
+</div>
+<p>always prints <code class="docutils literal notranslate"><span class="pre">inf</span></code> while the output of <code class="docutils literal notranslate"><span class="pre">printf</span></code> is platform-dependent.</p>
+</section>
+<section id="ease-of-use">
+<span id="id3"></span><h2>Ease of Use<a class="headerlink" href="#ease-of-use" title="Permalink to this headline">¶</a></h2>
+<p>{fmt} has a small self-contained code base with the core library consisting of
+just three header files and no external dependencies.
+A permissive MIT <a class="reference external" href="https://github.com/fmtlib/fmt#license">license</a> allows
+using the library both in open-source and commercial projects.</p>
+<p><a class="reference external" href="contents.html">Learn more…</a></p>
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+  <section id="format-string-syntax">
+<span id="syntax"></span><h1>Format String Syntax<a class="headerlink" href="#format-string-syntax" title="Permalink to this headline">¶</a></h1>
+<p>Formatting functions such as <a class="reference internal" href="api.html#format"><span class="std std-ref">fmt::format()</span></a> and
+<a class="reference internal" href="api.html#print"><span class="std std-ref">fmt::print()</span></a> use the same format string syntax described in this
+section.</p>
+<p>Format strings contain “replacement fields” surrounded by curly braces <code class="docutils literal notranslate"><span class="pre">{}</span></code>.
+Anything that is not contained in braces is considered literal text, which is
+copied unchanged to the output.  If you need to include a brace character in the
+literal text, it can be escaped by doubling: <code class="docutils literal notranslate"><span class="pre">{{</span></code> and <code class="docutils literal notranslate"><span class="pre">}}</span></code>.</p>
+<p>The grammar for a replacement field is as follows:</p>
+<pre>
+<strong id="grammar-token-sf-replacement_field"><span id="grammar-token-replacement-field"></span>replacement_field</strong> ::=  &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] [&quot;:&quot; (<a class="reference internal" href="#grammar-token-sf-format_spec"><code class="xref docutils literal notranslate"><span class="pre">format_spec</span></code></a> | <a class="reference internal" href="#grammar-token-sf-chrono_format_spec"><code class="xref docutils literal notranslate"><span class="pre">chrono_format_spec</span></code></a>)] &quot;}&quot;
+<strong id="grammar-token-sf-arg_id"><span id="grammar-token-arg-id"></span>arg_id           </strong> ::=  <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | <a class="reference internal" href="#grammar-token-sf-identifier"><code class="xref docutils literal notranslate"><span class="pre">identifier</span></code></a>
+<strong id="grammar-token-sf-integer"><span id="grammar-token-integer"></span>integer          </strong> ::=  <a class="reference internal" href="#grammar-token-sf-digit"><code class="xref docutils literal notranslate"><span class="pre">digit</span></code></a>+
+<strong id="grammar-token-sf-digit"><span id="grammar-token-digit"></span>digit            </strong> ::=  &quot;0&quot;...&quot;9&quot;
+<strong id="grammar-token-sf-identifier"><span id="grammar-token-identifier"></span>identifier       </strong> ::=  <a class="reference internal" href="#grammar-token-sf-id_start"><code class="xref docutils literal notranslate"><span class="pre">id_start</span></code></a> <a class="reference internal" href="#grammar-token-sf-id_continue"><code class="xref docutils literal notranslate"><span class="pre">id_continue</span></code></a>*
+<strong id="grammar-token-sf-id_start"><span id="grammar-token-id-start"></span>id_start         </strong> ::=  &quot;a&quot;...&quot;z&quot; | &quot;A&quot;...&quot;Z&quot; | &quot;_&quot;
+<strong id="grammar-token-sf-id_continue"><span id="grammar-token-id-continue"></span>id_continue      </strong> ::=  <a class="reference internal" href="#grammar-token-sf-id_start"><code class="xref docutils literal notranslate"><span class="pre">id_start</span></code></a> | <a class="reference internal" href="#grammar-token-sf-digit"><code class="xref docutils literal notranslate"><span class="pre">digit</span></code></a>
+</pre>
+<p>In less formal terms, the replacement field can start with an <em>arg_id</em>
+that specifies the argument whose value is to be formatted and inserted into
+the output instead of the replacement field.
+The <em>arg_id</em> is optionally followed by a <em>format_spec</em>, which is preceded by a
+colon <code class="docutils literal notranslate"><span class="pre">':'</span></code>.  These specify a non-default format for the replacement value.</p>
+<p>See also the <a class="reference internal" href="#formatspec"><span class="std std-ref">Format Specification Mini-Language</span></a> section.</p>
+<p>If the numerical arg_ids in a format string are 0, 1, 2, … in sequence,
+they can all be omitted (not just some) and the numbers 0, 1, 2, … will be
+automatically inserted in that order.</p>
+<p>Named arguments can be referred to by their names or indices.</p>
+<p>Some simple format string examples:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="s">&quot;First, thou shalt count to {0}&quot;</span><span class="w"> </span><span class="c1">// References the first argument</span>
+<span class="s">&quot;Bring me a {}&quot;</span><span class="w">                  </span><span class="c1">// Implicitly references the first argument</span>
+<span class="s">&quot;From {} to {}&quot;</span><span class="w">                  </span><span class="c1">// Same as &quot;From {0} to {1}&quot;</span>
+</pre></div>
+</div>
+<p>The <em>format_spec</em> field contains a specification of how the value should be
+presented, including such details as field width, alignment, padding, decimal
+precision and so on.  Each value type can define its own “formatting
+mini-language” or interpretation of the <em>format_spec</em>.</p>
+<p>Most built-in types support a common formatting mini-language, which is
+described in the next section.</p>
+<p>A <em>format_spec</em> field can also include nested replacement fields in certain
+positions within it. These nested replacement fields can contain only an
+argument id; format specifications are not allowed. This allows the formatting
+of a value to be dynamically specified.</p>
+<p>See the <a class="reference internal" href="#formatexamples"><span class="std std-ref">Format Examples</span></a> section for some examples.</p>
+<section id="format-specification-mini-language">
+<span id="formatspec"></span><h2>Format Specification Mini-Language<a class="headerlink" href="#format-specification-mini-language" title="Permalink to this headline">¶</a></h2>
+<p>“Format specifications” are used within replacement fields contained within a
+format string to define how individual values are presented (see
+<a class="reference internal" href="#syntax"><span class="std std-ref">Format String Syntax</span></a>).  Each formattable type may define how the format
+specification is to be interpreted.</p>
+<p>Most built-in types implement the following options for format specifications,
+although some of the formatting options are only supported by the numeric types.</p>
+<p>The general form of a <em>standard format specifier</em> is:</p>
+<pre>
+<strong id="grammar-token-sf-format_spec"><span id="grammar-token-format-spec"></span>format_spec</strong> ::=  [[<a class="reference internal" href="#grammar-token-sf-fill"><code class="xref docutils literal notranslate"><span class="pre">fill</span></code></a>]<a class="reference internal" href="#grammar-token-sf-align"><code class="xref docutils literal notranslate"><span class="pre">align</span></code></a>][<a class="reference internal" href="#grammar-token-sf-sign"><code class="xref docutils literal notranslate"><span class="pre">sign</span></code></a>][&quot;#&quot;][&quot;0&quot;][<a class="reference internal" href="#grammar-token-sf-width"><code class="xref docutils literal notranslate"><span class="pre">width</span></code></a>][&quot;.&quot; <a class="reference internal" href="#grammar-token-sf-precision"><code class="xref docutils literal notranslate"><span class="pre">precision</span></code></a>][&quot;L&quot;][<a class="reference internal" href="#grammar-token-sf-type"><code class="xref docutils literal notranslate"><span class="pre">type</span></code></a>]
+<strong id="grammar-token-sf-fill"><span id="grammar-token-fill"></span>fill       </strong> ::=  &lt;a character other than '{' or '}'&gt;
+<strong id="grammar-token-sf-align"><span id="grammar-token-align"></span>align      </strong> ::=  &quot;&lt;&quot; | &quot;&gt;&quot; | &quot;^&quot;
+<strong id="grammar-token-sf-sign"><span id="grammar-token-sign"></span>sign       </strong> ::=  &quot;+&quot; | &quot;-&quot; | &quot; &quot;
+<strong id="grammar-token-sf-width"><span id="grammar-token-width"></span>width      </strong> ::=  <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] &quot;}&quot;
+<strong id="grammar-token-sf-precision"><span id="grammar-token-precision"></span>precision  </strong> ::=  <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] &quot;}&quot;
+<strong id="grammar-token-sf-type"><span id="grammar-token-type"></span>type       </strong> ::=  &quot;a&quot; | &quot;A&quot; | &quot;b&quot; | &quot;B&quot; | &quot;c&quot; | &quot;d&quot; | &quot;e&quot; | &quot;E&quot; | &quot;f&quot; | &quot;F&quot; | &quot;g&quot; | &quot;G&quot; |
+                 &quot;o&quot; | &quot;p&quot; | &quot;s&quot; | &quot;x&quot; | &quot;X&quot;
+</pre>
+<p>The <em>fill</em> character can be any Unicode code point other than <code class="docutils literal notranslate"><span class="pre">'{'</span></code> or
+<code class="docutils literal notranslate"><span class="pre">'}'</span></code>. The presence of a fill character is signaled by the character following
+it, which must be one of the alignment options. If the second character of
+<em>format_spec</em> is not a valid alignment option, then it is assumed that both the
+fill character and the alignment option are absent.</p>
+<p>The meaning of the various alignment options is as follows:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Option</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'&lt;'</span></code></p></td>
+<td><p>Forces the field to be left-aligned within the available
+space (this is the default for most objects).</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'&gt;'</span></code></p></td>
+<td><p>Forces the field to be right-aligned within the
+available space (this is the default for numbers).</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'^'</span></code></p></td>
+<td><p>Forces the field to be centered within the available
+space.</p></td>
+</tr>
+</tbody>
+</table>
+<p>Note that unless a minimum field width is defined, the field width will always
+be the same size as the data to fill it, so that the alignment option has no
+meaning in this case.</p>
+<p>The <em>sign</em> option is only valid for number types, and can be one of the
+following:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Option</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'+'</span></code></p></td>
+<td><p>indicates that a sign should be used for both
+nonnegative as well as negative numbers.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'-'</span></code></p></td>
+<td><p>indicates that a sign should be used only for negative
+numbers (this is the default behavior).</p></td>
+</tr>
+<tr class="row-even"><td><p>space</p></td>
+<td><p>indicates that a leading space should be used on
+nonnegative numbers, and a minus sign on negative numbers.</p></td>
+</tr>
+</tbody>
+</table>
+<p>The <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option causes the “alternate form” to be used for the
+conversion.  The alternate form is defined differently for different
+types.  This option is only valid for integer and floating-point types.
+For integers, when binary, octal, or hexadecimal output is used, this
+option adds the prefix respective <code class="docutils literal notranslate"><span class="pre">&quot;0b&quot;</span></code> (<code class="docutils literal notranslate"><span class="pre">&quot;0B&quot;</span></code>), <code class="docutils literal notranslate"><span class="pre">&quot;0&quot;</span></code>, or
+<code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> (<code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code>) to the output value.  Whether the prefix is
+lower-case or upper-case is determined by the case of the type
+specifier, for example, the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> is used for the type <code class="docutils literal notranslate"><span class="pre">'x'</span></code>
+and <code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code> is used for <code class="docutils literal notranslate"><span class="pre">'X'</span></code>.  For floating-point numbers the
+alternate form causes the result of the conversion to always contain a
+decimal-point character, even if no digits follow it. Normally, a
+decimal-point character appears in the result of these conversions
+only if a digit follows it. In addition, for <code class="docutils literal notranslate"><span class="pre">'g'</span></code> and <code class="docutils literal notranslate"><span class="pre">'G'</span></code>
+conversions, trailing zeros are not removed from the result.</p>
+<p><em>width</em> is a decimal integer defining the minimum field width.  If not
+specified, then the field width will be determined by the content.</p>
+<p>Preceding the <em>width</em> field by a zero (<code class="docutils literal notranslate"><span class="pre">'0'</span></code>) character enables sign-aware
+zero-padding for numeric types. It forces the padding to be placed after the
+sign or base (if any) but before the digits. This is used for printing fields in
+the form ‘+000000120’. This option is only valid for numeric types and it has no
+effect on formatting of infinity and NaN.</p>
+<p>The <em>precision</em> is a decimal number indicating how many digits should be
+displayed after the decimal point for a floating-point value formatted with
+<code class="docutils literal notranslate"><span class="pre">'f'</span></code> and <code class="docutils literal notranslate"><span class="pre">'F'</span></code>, or before and after the decimal point for a floating-point
+value formatted with <code class="docutils literal notranslate"><span class="pre">'g'</span></code> or <code class="docutils literal notranslate"><span class="pre">'G'</span></code>.  For non-number types the field
+indicates the maximum field size - in other words, how many characters will be
+used from the field content. The <em>precision</em> is not allowed for integer,
+character, Boolean, and pointer values. Note that a C string must be
+null-terminated even if precision is specified.</p>
+<p>The <code class="docutils literal notranslate"><span class="pre">'L'</span></code> option uses the current locale setting to insert the appropriate
+number separator characters. This option is only valid for numeric types.</p>
+<p>Finally, the <em>type</em> determines how the data should be presented.</p>
+<p>The available string presentation types are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'s'</span></code></p></td>
+<td><p>String format. This is the default type for strings and
+may be omitted.</p></td>
+</tr>
+<tr class="row-odd"><td><p>none</p></td>
+<td><p>The same as <code class="docutils literal notranslate"><span class="pre">'s'</span></code>.</p></td>
+</tr>
+</tbody>
+</table>
+<p>The available character presentation types are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'c'</span></code></p></td>
+<td><p>Character format. This is the default type for
+characters and may be omitted.</p></td>
+</tr>
+<tr class="row-odd"><td><p>none</p></td>
+<td><p>The same as <code class="docutils literal notranslate"><span class="pre">'c'</span></code>.</p></td>
+</tr>
+</tbody>
+</table>
+<p>The available integer presentation types are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'b'</span></code></p></td>
+<td><p>Binary format. Outputs the number in base 2. Using the
+<code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0b&quot;</span></code>
+to the output value.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'B'</span></code></p></td>
+<td><p>Binary format. Outputs the number in base 2. Using the
+<code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0B&quot;</span></code>
+to the output value.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'c'</span></code></p></td>
+<td><p>Character format. Outputs the number as a character.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'d'</span></code></p></td>
+<td><p>Decimal integer. Outputs the number in base 10.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'o'</span></code></p></td>
+<td><p>Octal format. Outputs the number in base 8.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'x'</span></code></p></td>
+<td><p>Hex format. Outputs the number in base 16, using
+lower-case letters for the digits above 9. Using the
+<code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code>
+to the output value.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'X'</span></code></p></td>
+<td><p>Hex format. Outputs the number in base 16, using
+upper-case letters for the digits above 9. Using the
+<code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code>
+to the output value.</p></td>
+</tr>
+<tr class="row-odd"><td><p>none</p></td>
+<td><p>The same as <code class="docutils literal notranslate"><span class="pre">'d'</span></code>.</p></td>
+</tr>
+</tbody>
+</table>
+<p>Integer presentation types can also be used with character and Boolean values.
+Boolean values are formatted using textual representation, either <code class="docutils literal notranslate"><span class="pre">true</span></code> or
+<code class="docutils literal notranslate"><span class="pre">false</span></code>, if the presentation type is not specified.</p>
+<p>The available presentation types for floating-point values are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'a'</span></code></p></td>
+<td><p>Hexadecimal floating point format. Prints the number in
+base 16 with prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> and lower-case letters for
+digits above 9. Uses <code class="docutils literal notranslate"><span class="pre">'p'</span></code> to indicate the exponent.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'A'</span></code></p></td>
+<td><p>Same as <code class="docutils literal notranslate"><span class="pre">'a'</span></code> except it uses upper-case letters for
+the prefix, digits above 9 and to indicate the exponent.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'e'</span></code></p></td>
+<td><p>Exponent notation. Prints the number in scientific
+notation using the letter ‘e’ to indicate the exponent.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'E'</span></code></p></td>
+<td><p>Exponent notation. Same as <code class="docutils literal notranslate"><span class="pre">'e'</span></code> except it uses an
+upper-case <code class="docutils literal notranslate"><span class="pre">'E'</span></code> as the separator character.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'f'</span></code></p></td>
+<td><p>Fixed point. Displays the number as a fixed-point
+number.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'F'</span></code></p></td>
+<td><p>Fixed point. Same as <code class="docutils literal notranslate"><span class="pre">'f'</span></code>, but converts <code class="docutils literal notranslate"><span class="pre">nan</span></code> to
+<code class="docutils literal notranslate"><span class="pre">NAN</span></code> and <code class="docutils literal notranslate"><span class="pre">inf</span></code> to <code class="docutils literal notranslate"><span class="pre">INF</span></code>.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'g'</span></code></p></td>
+<td><p>General format.  For a given precision <code class="docutils literal notranslate"><span class="pre">p</span> <span class="pre">&gt;=</span> <span class="pre">1</span></code>,
+this rounds the number to <code class="docutils literal notranslate"><span class="pre">p</span></code> significant digits and
+then formats the result in either fixed-point format
+or in scientific notation, depending on its magnitude.</p>
+<p>A precision of <code class="docutils literal notranslate"><span class="pre">0</span></code> is treated as equivalent to a
+precision of <code class="docutils literal notranslate"><span class="pre">1</span></code>.</p>
+</td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'G'</span></code></p></td>
+<td><p>General format. Same as <code class="docutils literal notranslate"><span class="pre">'g'</span></code> except switches to
+<code class="docutils literal notranslate"><span class="pre">'E'</span></code> if the number gets too large. The
+representations of infinity and NaN are uppercased, too.</p></td>
+</tr>
+<tr class="row-even"><td><p>none</p></td>
+<td><p>Similar to <code class="docutils literal notranslate"><span class="pre">'g'</span></code>, except that the default precision is
+as high as needed to represent the particular value.</p></td>
+</tr>
+</tbody>
+</table>
+<p>The available presentation types for pointers are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 87%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'p'</span></code></p></td>
+<td><p>Pointer format. This is the default type for
+pointers and may be omitted.</p></td>
+</tr>
+<tr class="row-odd"><td><p>none</p></td>
+<td><p>The same as <code class="docutils literal notranslate"><span class="pre">'p'</span></code>.</p></td>
+</tr>
+</tbody>
+</table>
+</section>
+<section id="chrono-format-specifications">
+<span id="chrono-specs"></span><h2>Chrono Format Specifications<a class="headerlink" href="#chrono-format-specifications" title="Permalink to this headline">¶</a></h2>
+<p>Format specifications for chrono types and <code class="docutils literal notranslate"><span class="pre">std::tm</span></code> have the following
+syntax:</p>
+<pre>
+<strong id="grammar-token-sf-chrono_format_spec"><span id="grammar-token-chrono-format-spec"></span>chrono_format_spec</strong> ::=  [[<a class="reference internal" href="#grammar-token-sf-fill"><code class="xref docutils literal notranslate"><span class="pre">fill</span></code></a>]<a class="reference internal" href="#grammar-token-sf-align"><code class="xref docutils literal notranslate"><span class="pre">align</span></code></a>][<a class="reference internal" href="#grammar-token-sf-width"><code class="xref docutils literal notranslate"><span class="pre">width</span></code></a>][&quot;.&quot; <a class="reference internal" href="#grammar-token-sf-precision"><code class="xref docutils literal notranslate"><span class="pre">precision</span></code></a>][<a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a>]
+<strong id="grammar-token-sf-chrono_specs"><span id="grammar-token-chrono-specs"></span>chrono_specs      </strong> ::=  [<a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a>] <a class="reference internal" href="#grammar-token-sf-conversion_spec"><code class="xref docutils literal notranslate"><span class="pre">conversion_spec</span></code></a> | <a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a> <a class="reference internal" href="#grammar-token-sf-literal_char"><code class="xref docutils literal notranslate"><span class="pre">literal_char</span></code></a>
+<strong id="grammar-token-sf-conversion_spec"><span id="grammar-token-conversion-spec"></span>conversion_spec   </strong> ::=  &quot;%&quot; [<a class="reference internal" href="#grammar-token-sf-modifier"><code class="xref docutils literal notranslate"><span class="pre">modifier</span></code></a>] <a class="reference internal" href="#grammar-token-sf-chrono_type"><code class="xref docutils literal notranslate"><span class="pre">chrono_type</span></code></a>
+<strong id="grammar-token-sf-literal_char"><span id="grammar-token-literal-char"></span>literal_char      </strong> ::=  &lt;a character other than '{', '}' or '%'&gt;
+<strong id="grammar-token-sf-modifier"><span id="grammar-token-modifier"></span>modifier          </strong> ::=  &quot;E&quot; | &quot;O&quot;
+<strong id="grammar-token-sf-chrono_type"><span id="grammar-token-chrono-type"></span>chrono_type       </strong> ::=  &quot;a&quot; | &quot;A&quot; | &quot;b&quot; | &quot;B&quot; | &quot;c&quot; | &quot;C&quot; | &quot;d&quot; | &quot;D&quot; | &quot;e&quot; | &quot;F&quot; |
+                        &quot;g&quot; | &quot;G&quot; | &quot;h&quot; | &quot;H&quot; | &quot;I&quot; | &quot;j&quot; | &quot;m&quot; | &quot;M&quot; | &quot;n&quot; | &quot;p&quot; |
+                        &quot;q&quot; | &quot;Q&quot; | &quot;r&quot; | &quot;R&quot; | &quot;S&quot; | &quot;t&quot; | &quot;T&quot; | &quot;u&quot; | &quot;U&quot; | &quot;V&quot; |
+                        &quot;w&quot; | &quot;W&quot; | &quot;x&quot; | &quot;X&quot; | &quot;y&quot; | &quot;Y&quot; | &quot;z&quot; | &quot;Z&quot; | &quot;%&quot;
+</pre>
+<p>Literal chars are copied unchanged to the output. Precision is valid only for
+<code class="docutils literal notranslate"><span class="pre">std::chrono::duration</span></code> types with a floating-point representation type.</p>
+<p>The available presentation types (<em>chrono_type</em>) for chrono durations and time
+points are:</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 12%" />
+<col style="width: 88%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Type</p></th>
+<th class="head"><p>Meaning</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'H'</span></code></p></td>
+<td><p>The hour (24-hour clock) as a decimal number. If the result is a
+single digit, it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OH</span></code>
+produces the locale’s alternative representation.</p></td>
+</tr>
+<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'M'</span></code></p></td>
+<td><p>The minute as a decimal number. If the result is a single digit,
+it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OM</span></code> produces the
+locale’s alternative representation.</p></td>
+</tr>
+<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'S'</span></code></p></td>
+<td><p>Seconds as a decimal number. If the number of seconds is less than
+10, the result is prefixed with 0. If the precision of the input
+cannot be exactly represented with seconds, then the format is a
+decimal floating-point number with a fixed format and a precision
+matching that of the precision of the input (or to a microseconds
+precision if the conversion to floating-point decimal seconds
+cannot be made within 18 fractional digits). The character for the
+decimal point is localized according to the locale. The modified
+command <code class="docutils literal notranslate"><span class="pre">%OS</span></code> produces the locale’s alternative representation.</p></td>
+</tr>
+</tbody>
+</table>
+<p>Specifiers that have a calendaric component such as <code class="docutils literal notranslate"><span class="pre">'d'</span></code> (the day of month)
+are valid only for <code class="docutils literal notranslate"><span class="pre">std::tm</span></code> and not durations or time points.</p>
+</section>
+<section id="range-format-specifications">
+<h2>Range Format Specifications<a class="headerlink" href="#range-format-specifications" title="Permalink to this headline">¶</a></h2>
+<p>Format specifications for range types have the following syntax:</p>
+<pre>
+<strong id="grammar-token-sf-range_format_spec"><span id="grammar-token-range-format-spec"></span>range_format_spec</strong> ::=  [&quot;:&quot; [<code class="xref docutils literal notranslate"><span class="pre">underlying_spec</span></code>]]
+</pre>
+<p>The <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">underlying_spec</span></code> is parsed based on the formatter of the range’s
+reference type.</p>
+<p>By default, a range of characters or strings is printed escaped and quoted. But
+if any <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">underlying_spec</span></code> is provided (even if it is empty), then the characters
+or strings are printed according to the provided specification.</p>
+<p>Examples:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">});</span><span class="w"></span>
+<span class="c1">// Result: [10, 20, 30]</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::#x}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">});</span><span class="w"></span>
+<span class="c1">// Result: [0xa, 0x14, 0x13]</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span><span class="w"></span>
+<span class="c1">// Result: [&#39;h&#39;, &#39;e&#39;, &#39;l&#39;, &#39;l&#39;, &#39;o&#39;]</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span><span class="w"></span>
+<span class="c1">// Result: [h, e, l, l, o]</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::d}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span><span class="w"></span>
+<span class="c1">// Result: [104, 101, 108, 108, 111]</span>
+</pre></div>
+</div>
+</section>
+<section id="format-examples">
+<span id="formatexamples"></span><h2>Format Examples<a class="headerlink" href="#format-examples" title="Permalink to this headline">¶</a></h2>
+<p>This section contains examples of the format syntax and comparison with
+the printf formatting.</p>
+<p>In most of the cases the syntax is similar to the printf formatting, with the
+addition of the <code class="docutils literal notranslate"><span class="pre">{}</span></code> and with <code class="docutils literal notranslate"><span class="pre">:</span></code> used instead of <code class="docutils literal notranslate"><span class="pre">%</span></code>.
+For example, <code class="docutils literal notranslate"><span class="pre">&quot;%03.2f&quot;</span></code> can be translated to <code class="docutils literal notranslate"><span class="pre">&quot;{:03.2f}&quot;</span></code>.</p>
+<p>The new format syntax also supports new and different options, shown in the
+following examples.</p>
+<p>Accessing arguments by position:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{0}, {1}, {2}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;a, b, c&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}, {}, {}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;a, b, c&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{2}, {1}, {0}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;c, b, a&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{0}{1}{0}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;abra&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;cad&quot;</span><span class="p">);</span><span class="w">  </span><span class="c1">// arguments&#39; indices can be repeated</span>
+<span class="c1">// Result: &quot;abracadabra&quot;</span>
+</pre></div>
+</div>
+<p>Aligning the text and specifying a width:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&lt;30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;left aligned&quot;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;left aligned                  &quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&gt;30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;right aligned&quot;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;                 right aligned&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:^30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;centered&quot;</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;           centered           &quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:*^30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;centered&quot;</span><span class="p">);</span><span class="w">  </span><span class="c1">// use &#39;*&#39; as a fill char</span>
+<span class="c1">// Result: &quot;***********centered***********&quot;</span>
+</pre></div>
+</div>
+<p>Dynamic width:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&lt;{}}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;left aligned&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;left aligned                  &quot;</span>
+</pre></div>
+</div>
+<p>Dynamic precision:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:.{}f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;3.1&quot;</span>
+</pre></div>
+</div>
+<p>Replacing <code class="docutils literal notranslate"><span class="pre">%+f</span></code>, <code class="docutils literal notranslate"><span class="pre">%-f</span></code>, and <code class="docutils literal notranslate"><span class="pre">%</span> <span class="pre">f</span></code> and specifying a sign:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:+f}; {:+f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w">  </span><span class="c1">// show it always</span>
+<span class="c1">// Result: &quot;+3.140000; -3.140000&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{: f}; {: f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w">  </span><span class="c1">// show a space for positive numbers</span>
+<span class="c1">// Result: &quot; 3.140000; -3.140000&quot;</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:-f}; {:-f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w">  </span><span class="c1">// show only the minus -- same as &#39;{:f}; {:f}&#39;</span>
+<span class="c1">// Result: &quot;3.140000; -3.140000&quot;</span>
+</pre></div>
+</div>
+<p>Replacing <code class="docutils literal notranslate"><span class="pre">%x</span></code> and <code class="docutils literal notranslate"><span class="pre">%o</span></code> and converting the value to different bases:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;int: 42;  hex: 2a;  oct: 52; bin: 101010&quot;</span>
+<span class="c1">// with 0x or 0 or 0b as prefix:</span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;int: {0:d};  hex: {0:#x};  oct: {0:#o};  bin: {0:#b}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;int: 42;  hex: 0x2a;  oct: 052;  bin: 0b101010&quot;</span>
+</pre></div>
+</div>
+<p>Padded hex byte with prefix and always prints both hex characters:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:#04x}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Result: &quot;0x00&quot;</span>
+</pre></div>
+</div>
+<p>Box drawing using Unicode fill:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="w"></span>
+<span class="w">  </span><span class="s">&quot;┌{0:─^{2}}┐</span><span class="se">\n</span><span class="s">&quot;</span><span class="w"></span>
+<span class="w">  </span><span class="s">&quot;│{1: ^{2}}│</span><span class="se">\n</span><span class="s">&quot;</span><span class="w"></span>
+<span class="w">  </span><span class="s">&quot;└{0:─^{2}}┘</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;Hello, world!&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">);</span><span class="w"></span>
+</pre></div>
+</div>
+<p>prints:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span>┌────────────────────┐
+│   Hello, world!    │
+└────────────────────┘
+</pre></div>
+</div>
+<p>Using type-specific formatting:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fmt/chrono.h&gt;</span><span class="cp"></span>
+
+<span class="k">auto</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tm</span><span class="p">();</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_year</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2010</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1900</span><span class="p">;</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_mon</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">7</span><span class="p">;</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_mday</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_hour</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">12</span><span class="p">;</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_min</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">15</span><span class="p">;</span><span class="w"></span>
+<span class="n">t</span><span class="p">.</span><span class="n">tm_sec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">58</span><span class="p">;</span><span class="w"></span>
+<span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;{:%Y-%m-%d %H:%M:%S}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">t</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// Prints: 2010-08-04 12:15:58</span>
+</pre></div>
+</div>
+<p>Using the comma as a thousands separator:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fmt/format.h&gt;</span><span class="cp"></span>
+
+<span class="k">auto</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">locale</span><span class="p">(</span><span class="s">&quot;en_US.UTF-8&quot;</span><span class="p">),</span><span class="w"> </span><span class="s">&quot;{:L}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">1234567890</span><span class="p">);</span><span class="w"></span>
+<span class="c1">// s == &quot;1,234,567,890&quot;</span>
+</pre></div>
+</div>
+</section>
+</section>
+
+
+    </div>
+  </div>
+</div>
+
+
+
+    <div class="footer" role="contentinfo">
+        &copy; Copyright 2012-present, Victor Zverovich.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 3.3.0.
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+
+<script src="_static/bootstrap.min.js"></script>
+
+  </body>
+</html>

externals/fmt/doc/html/usage.html

@@ -0,0 +1,335 @@
+<!DOCTYPE html>
+
+
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    
+    <meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" />
+
+    <title>Usage &mdash; fmt 9.1.0 documentation</title>
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+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
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+    <link rel="index" title="Index" href="genindex.html" />
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+<meta name="description" content="Small, safe and fast formatting library">
+<meta name="keywords" content="C++, formatting, printf, string, library">
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+            <li class="dropdown">
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+                 role="button" aria-expanded="false">9.1.0
+                <span class="caret"></span></a>
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+                
+                <li><a href="https://fmt.dev/9.1.0">9.1.0</a></li>
+                
+                <li><a href="https://fmt.dev/9.0.0">9.0.0</a></li>
+                
+                <li><a href="https://fmt.dev/8.1.1">8.1.1</a></li>
+                
+              </ul>
+            </li>
+            
+              
+              <li><a href="contents.html">Contents</a></li>
+              
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+              
+              <li class="active"><a href="usage.html">Usage
+                <span class="sr-only">(current)</span></a></li>
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+            
+              
+              <li><a href="api.html">API</a></li>
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+            
+              
+              <li><a href="syntax.html">Syntax</a></li>
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+<form class="navbar-form navbar-right" role="search" action="search.html"
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+  <div class="row">
+    
+
+    <div class="content">
+      
+  <section id="usage">
+<h1>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h1>
+<p>To use the {fmt} library, add <code class="file docutils literal notranslate"><span class="pre">fmt/core.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">fmt/format.h</span></code>,
+<code class="file docutils literal notranslate"><span class="pre">fmt/format-inl.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">src/format.cc</span></code> and optionally other headers
+from a <a class="reference external" href="https://github.com/fmtlib/fmt/releases/latest">release archive</a> or
+the <a class="reference external" href="https://github.com/fmtlib/fmt">Git repository</a> to your project.
+Alternatively, you can <a class="reference internal" href="#building"><span class="std std-ref">build the library with CMake</span></a>.</p>
+<section id="building-the-library">
+<span id="building"></span><h2>Building the Library<a class="headerlink" href="#building-the-library" title="Permalink to this headline">¶</a></h2>
+<p>The included <a class="reference external" href="https://github.com/fmtlib/fmt/blob/master/CMakeLists.txt">CMake build script</a> can be used to build the fmt
+library on a wide range of platforms. CMake is freely available for
+download from <a class="reference external" href="https://www.cmake.org/download/">https://www.cmake.org/download/</a>.</p>
+<p>CMake works by generating native makefiles or project files that can
+be used in the compiler environment of your choice. The typical
+workflow starts with:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span>mkdir build          # Create a directory to hold the build output.
+cd build
+cmake ..  # Generate native build scripts.
+</pre></div>
+</div>
+<p>where <code class="file docutils literal notranslate"><em><span class="pre">&lt;path/to/fmt&gt;</span></em></code> is a path to the <code class="docutils literal notranslate"><span class="pre">fmt</span></code> repository.</p>
+<p>If you are on a *nix system, you should now see a Makefile in the
+current directory. Now you can build the library by running <strong class="command">make</strong>.</p>
+<p>Once the library has been built you can invoke <strong class="command">make test</strong> to run
+the tests.</p>
+<p>You can control generation of the make <code class="docutils literal notranslate"><span class="pre">test</span></code> target with the <code class="docutils literal notranslate"><span class="pre">FMT_TEST</span></code>
+CMake option. This can be useful if you include fmt as a subdirectory in
+your project but don’t want to add fmt’s tests to your <code class="docutils literal notranslate"><span class="pre">test</span></code> target.</p>
+<p>If you use Windows and have Visual Studio installed, a <code class="file docutils literal notranslate"><span class="pre">FMT.sln</span></code>
+file and several <code class="file docutils literal notranslate"><span class="pre">.vcproj</span></code> files will be created. You can then build them
+using Visual Studio or msbuild.</p>
+<p>On Mac OS X with Xcode installed, an <code class="file docutils literal notranslate"><span class="pre">.xcodeproj</span></code> file will be generated.</p>
+<p>To build a <a class="reference external" href="https://en.wikipedia.org/wiki/Library_%28computing%29#Shared_libraries">shared library</a> set the <code class="docutils literal notranslate"><span class="pre">BUILD_SHARED_LIBS</span></code> CMake variable to
+<code class="docutils literal notranslate"><span class="pre">TRUE</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">cmake</span><span class="w"> </span><span class="o">-</span><span class="n">DBUILD_SHARED_LIBS</span><span class="o">=</span><span class="n">TRUE</span><span class="w"> </span><span class="p">...</span><span class="w"></span>
+</pre></div>
+</div>
+<p>To build a <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">static</span> <span class="pre">library</span></code> with position independent code (required if the main
+consumer of the fmt library is a shared library i.e. a Python extension) set the
+<code class="docutils literal notranslate"><span class="pre">CMAKE_POSITION_INDEPENDENT_CODE</span></code> CMake variable to <code class="docutils literal notranslate"><span class="pre">TRUE</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">cmake</span><span class="w"> </span><span class="o">-</span><span class="n">DCMAKE_POSITION_INDEPENDENT_CODE</span><span class="o">=</span><span class="n">TRUE</span><span class="w"> </span><span class="p">...</span><span class="w"></span>
+</pre></div>
+</div>
+</section>
+<section id="installing-the-library">
+<h2>Installing the Library<a class="headerlink" href="#installing-the-library" title="Permalink to this headline">¶</a></h2>
+<p>After building the library you can install it on a Unix-like system by running
+<strong class="command">sudo make install</strong>.</p>
+</section>
+<section id="usage-with-cmake">
+<h2>Usage with CMake<a class="headerlink" href="#usage-with-cmake" title="Permalink to this headline">¶</a></h2>
+<p>You can add the <code class="docutils literal notranslate"><span class="pre">fmt</span></code> library directory into your project and include it in
+your <code class="docutils literal notranslate"><span class="pre">CMakeLists.txt</span></code> file:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">add_subdirectory</span><span class="p">(</span><span class="n">fmt</span><span class="p">)</span><span class="w"></span>
+</pre></div>
+</div>
+<p>or</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">add_subdirectory</span><span class="p">(</span><span class="n">fmt</span><span class="w"> </span><span class="n">EXCLUDE_FROM_ALL</span><span class="p">)</span><span class="w"></span>
+</pre></div>
+</div>
+<p>to exclude it from <code class="docutils literal notranslate"><span class="pre">make</span></code>, <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">all</span></code>, or <code class="docutils literal notranslate"><span class="pre">cmake</span> <span class="pre">--build</span> <span class="pre">.</span></code>.</p>
+<p>You can detect and use an installed version of {fmt} as follows:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">find_package</span><span class="p">(</span><span class="n">fmt</span><span class="p">)</span><span class="w"></span>
+<span class="n">target_link_libraries</span><span class="p">(</span><span class="o">&lt;</span><span class="n">your</span><span class="o">-</span><span class="n">target</span><span class="o">&gt;</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">fmt</span><span class="p">)</span><span class="w"></span>
+</pre></div>
+</div>
+<p>Setting up your target to use a header-only version of <code class="docutils literal notranslate"><span class="pre">fmt</span></code> is equally easy:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">target_link_libraries</span><span class="p">(</span><span class="o">&lt;</span><span class="n">your</span><span class="o">-</span><span class="n">target</span><span class="o">&gt;</span><span class="w"> </span><span class="n">PRIVATE</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">fmt</span><span class="o">-</span><span class="n">header</span><span class="o">-</span><span class="n">only</span><span class="p">)</span><span class="w"></span>
+</pre></div>
+</div>
+</section>
+<section id="usage-with-build2">
+<h2>Usage with build2<a class="headerlink" href="#usage-with-build2" title="Permalink to this headline">¶</a></h2>
+<p>You can use <a class="reference external" href="https://build2.org">build2</a>, a dependency manager and a
+build-system combined, to use <code class="docutils literal notranslate"><span class="pre">fmt</span></code>.</p>
+<p>Currently this package is available in these package repositories:</p>
+<ul class="simple">
+<li><p><strong>https://cppget.org/fmt/</strong> for released and published versions.</p></li>
+<li><p><a class="reference external" href="https://github.com/build2-packaging/fmt.git">The git repository with the sources of the build2 package of fmt</a>
+for unreleased or custom revisions of <code class="docutils literal notranslate"><span class="pre">fmt</span></code>.</p></li>
+</ul>
+<p><strong>Usage:</strong></p>
+<ul class="simple">
+<li><p><code class="docutils literal notranslate"><span class="pre">build2</span></code> package name: <code class="docutils literal notranslate"><span class="pre">fmt</span></code></p></li>
+<li><p>Library target name : <code class="docutils literal notranslate"><span class="pre">lib{fmt}</span></code></p></li>
+</ul>
+<p>For example, to make your <code class="docutils literal notranslate"><span class="pre">build2</span></code> project depend on <code class="docutils literal notranslate"><span class="pre">fmt</span></code>:</p>
+<ul>
+<li><p>Add one of the repositories to your configurations, or in your
+<code class="docutils literal notranslate"><span class="pre">repositories.manifest</span></code>, if not already there:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="o">:</span><span class="w"></span>
+<span class="nl">role</span><span class="p">:</span><span class="w"> </span><span class="n">prerequisite</span><span class="w"></span>
+<span class="nl">location</span><span class="p">:</span><span class="w"> </span><span class="n">https</span><span class="o">:</span><span class="c1">//pkg.cppget.org/1/stable</span>
+</pre></div>
+</div>
+</li>
+<li><p>Add this package as a dependency to your <code class="docutils literal notranslate"><span class="pre">./manifest</span></code> file
+(example for <code class="docutils literal notranslate"><span class="pre">v7.0.x</span></code>):</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="nl">depends</span><span class="p">:</span><span class="w"> </span><span class="n">fmt</span><span class="w"> </span><span class="o">~</span><span class="mf">7.0.0</span><span class="w"></span>
+</pre></div>
+</div>
+</li>
+<li><p>Import the target and use it as a prerequisite to your own target
+using <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">fmt</span></code> in the appropriate <code class="docutils literal notranslate"><span class="pre">buildfile</span></code>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="k">import</span><span class="w"> </span><span class="n">fmt</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fmt</span><span class="o">%</span><span class="n">lib</span><span class="p">{</span><span class="n">fmt</span><span class="p">}</span><span class="w"></span>
+<span class="n">lib</span><span class="p">{</span><span class="n">mylib</span><span class="p">}</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">cxx</span><span class="p">{</span><span class="o">**</span><span class="p">}</span><span class="w"> </span><span class="p">...</span><span class="w"> </span><span class="n">$fmt</span><span class="w"></span>
+</pre></div>
+</div>
+</li>
+</ul>
+<p>Then build your project as usual with <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">b</span></code> or <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">bdep</span> <span class="pre">update</span></code>.</p>
+<p>For <code class="docutils literal notranslate"><span class="pre">build2</span></code> newcomers or to get more details and use cases, you can read the
+<code class="docutils literal notranslate"><span class="pre">build2</span></code>
+<a class="reference external" href="https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml">toolchain introduction</a>.</p>
+</section>
+<section id="building-the-documentation">
+<h2>Building the Documentation<a class="headerlink" href="#building-the-documentation" title="Permalink to this headline">¶</a></h2>
+<p>To build the documentation you need the following software installed on your
+system:</p>
+<ul>
+<li><p><a class="reference external" href="https://www.python.org/">Python</a> with pip and virtualenv</p></li>
+<li><p><a class="reference external" href="http://www.stack.nl/~dimitri/doxygen/">Doxygen</a></p></li>
+<li><p><a class="reference external" href="http://lesscss.org/">Less</a> with <code class="docutils literal notranslate"><span class="pre">less-plugin-clean-css</span></code>.
+Ubuntu doesn’t package the <code class="docutils literal notranslate"><span class="pre">clean-css</span></code> plugin so you should use <code class="docutils literal notranslate"><span class="pre">npm</span></code>
+instead of <code class="docutils literal notranslate"><span class="pre">apt</span></code> to install both <code class="docutils literal notranslate"><span class="pre">less</span></code> and the plugin:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">sudo</span><span class="w"> </span><span class="n">npm</span><span class="w"> </span><span class="n">install</span><span class="w"> </span><span class="o">-</span><span class="n">g</span><span class="w"> </span><span class="n">less</span><span class="w"> </span><span class="n">less</span><span class="o">-</span><span class="n">plugin</span><span class="o">-</span><span class="n">clean</span><span class="o">-</span><span class="n">css</span><span class="p">.</span><span class="w"></span>
+</pre></div>
+</div>
+</li>
+</ul>
+<p>First generate makefiles or project files using CMake as described in
+the previous section. Then compile the <code class="docutils literal notranslate"><span class="pre">doc</span></code> target/project, for example:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">make</span><span class="w"> </span><span class="n">doc</span><span class="w"></span>
+</pre></div>
+</div>
+<p>This will generate the HTML documentation in <code class="docutils literal notranslate"><span class="pre">doc/html</span></code>.</p>
+</section>
+<section id="conda">
+<h2>Conda<a class="headerlink" href="#conda" title="Permalink to this headline">¶</a></h2>
+<p>fmt can be installed on Linux, macOS and Windows with
+<a class="reference external" href="https://docs.conda.io/en/latest/">Conda</a>, using its
+<a class="reference external" href="https://conda-forge.org">conda-forge</a>
+<a class="reference external" href="https://github.com/conda-forge/fmt-feedstock">package</a>, as follows:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">conda</span><span class="w"> </span><span class="n">install</span><span class="w"> </span><span class="o">-</span><span class="n">c</span><span class="w"> </span><span class="n">conda</span><span class="o">-</span><span class="n">forge</span><span class="w"> </span><span class="n">fmt</span><span class="w"></span>
+</pre></div>
+</div>
+</section>
+<section id="vcpkg">
+<h2>Vcpkg<a class="headerlink" href="#vcpkg" title="Permalink to this headline">¶</a></h2>
+<p>You can download and install fmt using the <a class="reference external" href="https://github.com/Microsoft/vcpkg">vcpkg</a> dependency manager:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">git</span><span class="w"> </span><span class="n">clone</span><span class="w"> </span><span class="n">https</span><span class="o">:</span><span class="c1">//github.com/Microsoft/vcpkg.git</span>
+<span class="n">cd</span><span class="w"> </span><span class="n">vcpkg</span><span class="w"></span>
+<span class="p">.</span><span class="o">/</span><span class="n">bootstrap</span><span class="o">-</span><span class="n">vcpkg</span><span class="p">.</span><span class="n">sh</span><span class="w"></span>
+<span class="p">.</span><span class="o">/</span><span class="n">vcpkg</span><span class="w"> </span><span class="n">integrate</span><span class="w"> </span><span class="n">install</span><span class="w"></span>
+<span class="p">.</span><span class="o">/</span><span class="n">vcpkg</span><span class="w"> </span><span class="n">install</span><span class="w"> </span><span class="n">fmt</span><span class="w"></span>
+</pre></div>
+</div>
+<p>The fmt port in vcpkg is kept up to date by Microsoft team members and community
+contributors. If the version is out of date, please <a class="reference external" href="https://github.com/Microsoft/vcpkg">create an issue or pull
+request</a> on the vcpkg repository.</p>
+</section>
+<section id="lhelper">
+<h2>LHelper<a class="headerlink" href="#lhelper" title="Permalink to this headline">¶</a></h2>
+<p>You can download and install fmt using
+<a class="reference external" href="https://github.com/franko/lhelper">lhelper</a> dependency manager:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">lhelper</span><span class="w"> </span><span class="n">activate</span><span class="w"> </span><span class="o">&lt;</span><span class="n">some</span><span class="o">-</span><span class="n">environment</span><span class="o">&gt;</span><span class="w"></span>
+<span class="n">lhelper</span><span class="w"> </span><span class="n">install</span><span class="w"> </span><span class="n">fmt</span><span class="w"></span>
+</pre></div>
+</div>
+<p>All the recipes for lhelper are kept in the
+<a class="reference external" href="https://github.com/franko/lhelper-recipes">lhelper’s recipe</a> repository.</p>
+</section>
+<section id="android-ndk">
+<h2>Android NDK<a class="headerlink" href="#android-ndk" title="Permalink to this headline">¶</a></h2>
+<p>fmt provides <a class="reference external" href="https://github.com/fmtlib/fmt/blob/master/support/Android.mk">Android.mk file</a> that can be used to build the library
+with <a class="reference external" href="https://developer.android.com/tools/sdk/ndk/index.html">Android NDK</a>.
+For an example of using fmt with Android NDK, see the
+<a class="reference external" href="https://github.com/fmtlib/android-ndk-example">android-ndk-example</a>
+repository.</p>
+</section>
+<section id="homebrew">
+<h2>Homebrew<a class="headerlink" href="#homebrew" title="Permalink to this headline">¶</a></h2>
+<p>fmt can be installed on OS X using <a class="reference external" href="https://brew.sh/">Homebrew</a>:</p>
+<div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">brew</span><span class="w"> </span><span class="n">install</span><span class="w"> </span><span class="n">fmt</span><span class="w"></span>
+</pre></div>
+</div>
+</section>
+</section>
+
+
+    </div>
+  </div>
+</div>
+
+
+
+    <div class="footer" role="contentinfo">
+        &copy; Copyright 2012-present, Victor Zverovich.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 3.3.0.
+    </div>
+
+<script src="_static/bootstrap.min.js"></script>
+
+  </body>
+</html>

externals/fmt/doc/index.rst

@@ -39,7 +39,7 @@ The ``fmt::format`` function returns a string "The answer is 42.". You can use
 .. code:: c++
 
   auto out = fmt::memory_buffer();
-  format_to(std::back_inserter(out),
+  fmt::format_to(std::back_inserter(out),
             "For a moment, {} happened.", "nothing");
   auto data = out.data(); // pointer to the formatted data
   auto size = out.size(); // size of the formatted data

externals/fmt/doc/syntax.rst

@@ -356,8 +356,8 @@ Range Format Specifications
 
 Format specifications for range types have the following syntax:
 
-..productionlist:: sf
-  range_format_spec: [":" [`underlying_spec`]]
+.. productionlist:: sf
+   range_format_spec: [":" [`underlying_spec`]]
 
 The `underlying_spec` is parsed based on the formatter of the range's
 reference type.
@@ -366,7 +366,7 @@ By default, a range of characters or strings is printed escaped and quoted. But
 if any `underlying_spec` is provided (even if it is empty), then the characters
 or strings are printed according to the provided specification.
 
-Examples:
+Examples::
 
   fmt::format("{}", std::vector{10, 20, 30});
   // Result: [10, 20, 30]

externals/fmt/include/fmt/chrono.h

@@ -203,7 +203,7 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
     }
     const auto min1 =
         (std::numeric_limits<IntermediateRep>::min)() / Factor::num;
-    if (count < min1) {
+    if (!std::is_unsigned<IntermediateRep>::value && count < min1) {
       ec = 1;
       return {};
     }
@@ -1396,7 +1396,8 @@ inline bool isfinite(T) {
 // Converts value to Int and checks that it's in the range [0, upper).
 template <typename T, typename Int, FMT_ENABLE_IF(std::is_integral<T>::value)>
 inline Int to_nonnegative_int(T value, Int upper) {
-  FMT_ASSERT(value >= 0 && to_unsigned(value) <= to_unsigned(upper),
+  FMT_ASSERT(std::is_unsigned<Int>::value ||
+             (value >= 0 && to_unsigned(value) <= to_unsigned(upper)),
              "invalid value");
   (void)upper;
   return static_cast<Int>(value);
@@ -1776,7 +1777,7 @@ struct chrono_formatter {
         format_to(std::back_inserter(buf), runtime("{:.{}f}"),
                   std::fmod(val * static_cast<rep>(Period::num) /
                                 static_cast<rep>(Period::den),
-                            60),
+                            static_cast<rep>(60)),
                   num_fractional_digits);
         if (negative) *out++ = '-';
         if (buf.size() < 2 || buf[1] == '.') *out++ = '0';
@@ -2001,13 +2002,9 @@ template <typename Char, typename Duration>
 struct formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
                  Char> : formatter<std::tm, Char> {
   FMT_CONSTEXPR formatter() {
-    this->do_parse(default_specs,
-                   default_specs + sizeof(default_specs) / sizeof(Char));
-  }
-
-  template <typename ParseContext>
-  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
-    return this->do_parse(ctx.begin(), ctx.end(), true);
+    basic_string_view<Char> default_specs =
+        detail::string_literal<Char, '%', 'F', ' ', '%', 'T'>{};
+    this->do_parse(default_specs.begin(), default_specs.end());
   }
 
   template <typename FormatContext>
@@ -2015,15 +2012,8 @@ struct formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
               FormatContext& ctx) const -> decltype(ctx.out()) {
     return formatter<std::tm, Char>::format(localtime(val), ctx);
   }
-
-  static constexpr const Char default_specs[] = {'%', 'F', ' ', '%', 'T'};
 };
 
-template <typename Char, typename Duration>
-constexpr const Char
-    formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
-              Char>::default_specs[];
-
 template <typename Char> struct formatter<std::tm, Char> {
  private:
   enum class spec {
@@ -2035,13 +2025,18 @@ template <typename Char> struct formatter<std::tm, Char> {
   basic_string_view<Char> specs;
 
  protected:
-  template <typename It>
-  FMT_CONSTEXPR auto do_parse(It begin, It end, bool with_default = false)
-      -> It {
+  template <typename It> FMT_CONSTEXPR auto do_parse(It begin, It end) -> It {
     if (begin != end && *begin == ':') ++begin;
     end = detail::parse_chrono_format(begin, end, detail::tm_format_checker());
-    if (!with_default || end != begin)
-      specs = {begin, detail::to_unsigned(end - begin)};
+    // Replace default spec only if the new spec is not empty.
+    if (end != begin) specs = {begin, detail::to_unsigned(end - begin)};
+    return end;
+  }
+
+ public:
+  FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
+      -> decltype(ctx.begin()) {
+    auto end = this->do_parse(ctx.begin(), ctx.end());
     // basic_string_view<>::compare isn't constexpr before C++17.
     if (specs.size() == 2 && specs[0] == Char('%')) {
       if (specs[1] == Char('F'))
@@ -2052,12 +2047,6 @@ template <typename Char> struct formatter<std::tm, Char> {
     return end;
   }
 
- public:
-  template <typename ParseContext>
-  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
-    return this->do_parse(ctx.begin(), ctx.end());
-  }
-
   template <typename FormatContext>
   auto format(const std::tm& tm, FormatContext& ctx) const
       -> decltype(ctx.out()) {

externals/fmt/include/fmt/color.h

@@ -634,7 +634,7 @@ struct formatter<detail::styled_arg<T>, Char> : formatter<T, Char> {
 
   **Example**::
 
-    fmt::print("Elapsed time: {s:.2f} seconds",
+    fmt::print("Elapsed time: {0:.2f} seconds",
                fmt::styled(1.23, fmt::fg(fmt::color::green) |
                                  fmt::bg(fmt::color::blue)));
   \endrst

externals/fmt/include/fmt/compile.h

@@ -14,8 +14,8 @@ FMT_BEGIN_NAMESPACE
 namespace detail {
 
 template <typename Char, typename InputIt>
-inline counting_iterator copy_str(InputIt begin, InputIt end,
-                                  counting_iterator it) {
+FMT_CONSTEXPR inline counting_iterator copy_str(InputIt begin, InputIt end,
+                                                counting_iterator it) {
   return it + (end - begin);
 }
 
@@ -341,7 +341,7 @@ constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
                                          next_arg_id);
   auto f = formatter<T, Char>();
   auto end = f.parse(ctx);
-  return {f, pos + fmt::detail::to_unsigned(end - str.data()) + 1,
+  return {f, pos + fmt::detail::to_unsigned(end - str.data()),
           next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()};
 }
 
@@ -397,13 +397,20 @@ constexpr auto parse_replacement_field_then_tail(S format_str) {
     return parse_tail<Args, END_POS + 1, NEXT_ID>(
         field<char_type, typename field_type<T>::type, ARG_INDEX>(),
         format_str);
-  } else if constexpr (c == ':') {
+  } else if constexpr (c != ':') {
+    FMT_THROW(format_error("expected ':'"));
+  } else {
     constexpr auto result = parse_specs<typename field_type<T>::type>(
         str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID);
-    return parse_tail<Args, result.end, result.next_arg_id>(
-        spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
-            result.fmt},
-        format_str);
+    if constexpr (result.end >= str.size() || str[result.end] != '}') {
+      FMT_THROW(format_error("expected '}'"));
+      return 0;
+    } else {
+      return parse_tail<Args, result.end + 1, result.next_arg_id>(
+          spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
+              result.fmt},
+          format_str);
+    }
   }
 }
 
@@ -568,7 +575,8 @@ format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
 
 template <typename S, typename... Args,
           FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-size_t formatted_size(const S& format_str, const Args&... args) {
+FMT_CONSTEXPR20 size_t formatted_size(const S& format_str,
+                                      const Args&... args) {
   return fmt::format_to(detail::counting_iterator(), format_str, args...)
       .count();
 }

externals/fmt/include/fmt/core.h

@@ -17,7 +17,7 @@
 #include <type_traits>
 
 // The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 90000
+#define FMT_VERSION 90100
 
 #if defined(__clang__) && !defined(__ibmxl__)
 #  define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
@@ -200,6 +200,9 @@
 #  endif
 #endif
 
+// An inline std::forward replacement.
+#define FMT_FORWARD(...) static_cast<decltype(__VA_ARGS__)&&>(__VA_ARGS__)
+
 #ifdef _MSC_VER
 #  define FMT_UNCHECKED_ITERATOR(It) \
     using _Unchecked_type = It  // Mark iterator as checked.
@@ -273,7 +276,8 @@
 #ifndef FMT_USE_NONTYPE_TEMPLATE_ARGS
 #  if defined(__cpp_nontype_template_args) &&                  \
       ((FMT_GCC_VERSION >= 903 && FMT_CPLUSPLUS >= 201709L) || \
-       __cpp_nontype_template_args >= 201911L)
+       __cpp_nontype_template_args >= 201911L) &&              \
+      !defined(__NVCOMPILER)
 #    define FMT_USE_NONTYPE_TEMPLATE_ARGS 1
 #  else
 #    define FMT_USE_NONTYPE_TEMPLATE_ARGS 0
@@ -402,7 +406,7 @@ template <typename T> auto convert_for_visit(T) -> monostate { return {}; }
 template <typename Int>
 FMT_CONSTEXPR auto to_unsigned(Int value) ->
     typename std::make_unsigned<Int>::type {
-  FMT_ASSERT(value >= 0, "negative value");
+  FMT_ASSERT(std::is_unsigned<Int>::value || value >= 0, "negative value");
   return static_cast<typename std::make_unsigned<Int>::type>(value);
 }
 
@@ -707,8 +711,8 @@ class basic_format_parse_context : private ErrorHandler {
     next_arg_id_ = -1;
     do_check_arg_id(id);
   }
-
   FMT_CONSTEXPR void check_arg_id(basic_string_view<Char>) {}
+  FMT_CONSTEXPR void check_dynamic_spec(int arg_id);
 
   FMT_CONSTEXPR void on_error(const char* message) {
     ErrorHandler::on_error(message);
@@ -735,7 +739,8 @@ class compile_parse_context
       ErrorHandler eh = {}, int next_arg_id = 0)
       : base(format_str, eh, next_arg_id), num_args_(num_args), types_(types) {}
 
-  constexpr int num_args() const { return num_args_; }
+  constexpr auto num_args() const -> int { return num_args_; }
+  constexpr auto arg_type(int id) const -> type { return types_[id]; }
 
   FMT_CONSTEXPR auto next_arg_id() -> int {
     int id = base::next_arg_id();
@@ -748,6 +753,11 @@ class compile_parse_context
     if (id >= num_args_) this->on_error("argument not found");
   }
   using base::check_arg_id;
+
+  FMT_CONSTEXPR void check_dynamic_spec(int arg_id) {
+    if (arg_id < num_args_ && types_ && !is_integral_type(types_[arg_id]))
+      this->on_error("width/precision is not integer");
+  }
 };
 FMT_END_DETAIL_NAMESPACE
 
@@ -763,6 +773,15 @@ basic_format_parse_context<Char, ErrorHandler>::do_check_arg_id(int id) {
   }
 }
 
+template <typename Char, typename ErrorHandler>
+FMT_CONSTEXPR void
+basic_format_parse_context<Char, ErrorHandler>::check_dynamic_spec(int arg_id) {
+  if (detail::is_constant_evaluated()) {
+    using context = detail::compile_parse_context<Char, ErrorHandler>;
+    static_cast<context*>(this)->check_dynamic_spec(arg_id);
+  }
+}
+
 template <typename Context> class basic_format_arg;
 template <typename Context> class basic_format_args;
 template <typename Context> class dynamic_format_arg_store;
@@ -917,11 +936,11 @@ template <typename T> class buffer {
   /** Appends data to the end of the buffer. */
   template <typename U> void append(const U* begin, const U* end);
 
-  template <typename I> FMT_CONSTEXPR auto operator[](I index) -> T& {
+  template <typename Idx> FMT_CONSTEXPR auto operator[](Idx index) -> T& {
     return ptr_[index];
   }
-  template <typename I>
-  FMT_CONSTEXPR auto operator[](I index) const -> const T& {
+  template <typename Idx>
+  FMT_CONSTEXPR auto operator[](Idx index) const -> const T& {
     return ptr_[index];
   }
 };
@@ -1649,6 +1668,11 @@ auto copy_str(InputIt begin, InputIt end, appender out) -> appender {
   return out;
 }
 
+template <typename Char, typename R, typename OutputIt>
+FMT_CONSTEXPR auto copy_str(R&& rng, OutputIt out) -> OutputIt {
+  return detail::copy_str<Char>(rng.begin(), rng.end(), out);
+}
+
 #if FMT_GCC_VERSION && FMT_GCC_VERSION < 500
 // A workaround for gcc 4.8 to make void_t work in a SFINAE context.
 template <typename... Ts> struct void_t_impl { using type = void; };
@@ -1708,7 +1732,7 @@ constexpr auto encode_types() -> unsigned long long {
 
 template <typename Context, typename T>
 FMT_CONSTEXPR FMT_INLINE auto make_value(T&& val) -> value<Context> {
-  const auto& arg = arg_mapper<Context>().map(std::forward<T>(val));
+  const auto& arg = arg_mapper<Context>().map(FMT_FORWARD(val));
 
   constexpr bool formattable_char =
       !std::is_same<decltype(arg), const unformattable_char&>::value;
@@ -1875,7 +1899,7 @@ class format_arg_store
         data_{detail::make_arg<
             is_packed, Context,
             detail::mapped_type_constant<remove_cvref_t<T>, Context>::value>(
-            std::forward<T>(args))...} {
+            FMT_FORWARD(args))...} {
     detail::init_named_args(data_.named_args(), 0, 0, args...);
   }
 };
@@ -1891,7 +1915,7 @@ class format_arg_store
 template <typename Context = format_context, typename... Args>
 constexpr auto make_format_args(Args&&... args)
     -> format_arg_store<Context, remove_cvref_t<Args>...> {
-  return {std::forward<Args>(args)...};
+  return {FMT_FORWARD(args)...};
 }
 
 /**
@@ -2240,11 +2264,14 @@ class dynamic_specs_handler
 
   FMT_CONSTEXPR auto make_arg_ref(int arg_id) -> arg_ref_type {
     context_.check_arg_id(arg_id);
+    context_.check_dynamic_spec(arg_id);
     return arg_ref_type(arg_id);
   }
 
   FMT_CONSTEXPR auto make_arg_ref(auto_id) -> arg_ref_type {
-    return arg_ref_type(context_.next_arg_id());
+    int arg_id = context_.next_arg_id();
+    context_.check_dynamic_spec(arg_id);
+    return arg_ref_type(arg_id);
   }
 
   FMT_CONSTEXPR auto make_arg_ref(basic_string_view<char_type> arg_id)
@@ -2270,12 +2297,15 @@ constexpr auto to_ascii(Char c) -> underlying_t<Char> {
   return c;
 }
 
+FMT_CONSTEXPR inline auto code_point_length_impl(char c) -> int {
+  return "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4"
+      [static_cast<unsigned char>(c) >> 3];
+}
+
 template <typename Char>
 FMT_CONSTEXPR auto code_point_length(const Char* begin) -> int {
   if (const_check(sizeof(Char) != 1)) return 1;
-  auto lengths =
-      "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4";
-  int len = lengths[static_cast<unsigned char>(*begin) >> 3];
+  int len = code_point_length_impl(static_cast<char>(*begin));
 
   // Compute the pointer to the next character early so that the next
   // iteration can start working on the next character. Neither Clang
@@ -2803,7 +2833,8 @@ FMT_CONSTEXPR auto parse_float_type_spec(const basic_format_specs<Char>& specs,
 template <typename ErrorHandler = error_handler>
 FMT_CONSTEXPR auto check_cstring_type_spec(presentation_type type,
                                            ErrorHandler&& eh = {}) -> bool {
-  if (type == presentation_type::none || type == presentation_type::string)
+  if (type == presentation_type::none || type == presentation_type::string ||
+      type == presentation_type::debug)
     return true;
   if (type != presentation_type::pointer) eh.on_error("invalid type specifier");
   return false;
@@ -2921,7 +2952,10 @@ class format_string_checker {
       basic_string_view<Char> format_str, ErrorHandler eh)
       : context_(format_str, num_args, types_, eh),
         parse_funcs_{&parse_format_specs<Args, parse_context_type>...},
-        types_{type_constant<Args, char>::value...} {}
+        types_{
+            mapped_type_constant<Args,
+                                 basic_format_context<Char*, Char>>::value...} {
+  }
 
   FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
 
@@ -3065,6 +3099,15 @@ struct formatter<T, Char,
     return it;
   }
 
+  template <detail::type U = detail::type_constant<T, Char>::value,
+            enable_if_t<(U == detail::type::string_type ||
+                         U == detail::type::cstring_type ||
+                         U == detail::type::char_type),
+                        int> = 0>
+  FMT_CONSTEXPR void set_debug_format() {
+    specs_.type = presentation_type::debug;
+  }
+
   template <typename FormatContext>
   FMT_CONSTEXPR auto format(const T& val, FormatContext& ctx) const
       -> decltype(ctx.out());
@@ -3127,7 +3170,7 @@ template <typename Char, typename... Args> class basic_format_string {
 #if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
 // Workaround broken conversion on older gcc.
 template <typename...> using format_string = string_view;
-inline auto runtime(string_view s) -> basic_string_view<char> { return s; }
+inline auto runtime(string_view s) -> string_view { return s; }
 #else
 template <typename... Args>
 using format_string = basic_format_string<char, type_identity_t<Args>...>;

externals/fmt/include/fmt/format-inl.h

@@ -1337,7 +1337,7 @@ template <typename T> decimal_fp<T> to_decimal(T x) noexcept {
 
   if (r < deltai) {
     // Exclude the right endpoint if necessary.
-    if (r == 0 && z_mul.is_integer && !include_right_endpoint) {
+    if (r == 0 && (z_mul.is_integer & !include_right_endpoint)) {
       --ret_value.significand;
       r = float_info<T>::big_divisor;
       goto small_divisor_case_label;
@@ -1346,26 +1346,11 @@ template <typename T> decimal_fp<T> to_decimal(T x) noexcept {
     goto small_divisor_case_label;
   } else {
     // r == deltai; compare fractional parts.
-    const carrier_uint two_fl = two_fc - 1;
+    const typename cache_accessor<T>::compute_mul_parity_result x_mul =
+        cache_accessor<T>::compute_mul_parity(two_fc - 1, cache, beta);
 
-    if (!include_left_endpoint ||
-        exponent < float_info<T>::case_fc_pm_half_lower_threshold ||
-        exponent > float_info<T>::divisibility_check_by_5_threshold) {
-      // If the left endpoint is not included, the condition for
-      // success is z^(f) < delta^(f) (odd parity).
-      // Otherwise, the inequalities on exponent ensure that
-      // x is not an integer, so if z^(f) >= delta^(f) (even parity), we in fact
-      // have strict inequality.
-      if (!cache_accessor<T>::compute_mul_parity(two_fl, cache, beta).parity) {
-        goto small_divisor_case_label;
-      }
-    } else {
-      const typename cache_accessor<T>::compute_mul_parity_result x_mul =
-          cache_accessor<T>::compute_mul_parity(two_fl, cache, beta);
-      if (!x_mul.parity && !x_mul.is_integer) {
-        goto small_divisor_case_label;
-      }
-    }
+    if (!(x_mul.parity | (x_mul.is_integer & include_left_endpoint)))
+      goto small_divisor_case_label;
   }
   ret_value.exponent = minus_k + float_info<T>::kappa + 1;
 
@@ -1404,7 +1389,7 @@ small_divisor_case_label:
   // or equivalently, when y is an integer.
   if (y_mul.parity != approx_y_parity)
     --ret_value.significand;
-  else if (y_mul.is_integer && ret_value.significand % 2 != 0)
+  else if (y_mul.is_integer & (ret_value.significand % 2 != 0))
     --ret_value.significand;
   return ret_value;
 }
@@ -1488,17 +1473,13 @@ FMT_FUNC std::string vformat(string_view fmt, format_args args) {
   return to_string(buffer);
 }
 
-#ifdef _WIN32
 namespace detail {
+#ifdef _WIN32
 using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>;
 extern "C" __declspec(dllimport) int __stdcall WriteConsoleW(  //
     void*, const void*, dword, dword*, void*);
-}  // namespace detail
-#endif
 
-namespace detail {
-FMT_FUNC void print(std::FILE* f, string_view text) {
-#ifdef _WIN32
+FMT_FUNC bool write_console(std::FILE* f, string_view text) {
   auto fd = _fileno(f);
   if (_isatty(fd)) {
     detail::utf8_to_utf16 u16(string_view(text.data(), text.size()));
@@ -1506,11 +1487,20 @@ FMT_FUNC void print(std::FILE* f, string_view text) {
     if (detail::WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)),
                               u16.c_str(), static_cast<uint32_t>(u16.size()),
                               &written, nullptr)) {
-      return;
+      return true;
     }
-    // Fallback to fwrite on failure. It can happen if the output has been
-    // redirected to NUL.
   }
+  // We return false if the file descriptor was not TTY, or it was but
+  // SetConsoleW failed which can happen if the output has been redirected to
+  // NUL. In both cases when we return false, we should attempt to do regular
+  // write via fwrite or std::ostream::write.
+  return false;
+}
+#endif
+
+FMT_FUNC void print(std::FILE* f, string_view text) {
+#ifdef _WIN32
+  if (write_console(f, text)) return;
 #endif
   detail::fwrite_fully(text.data(), 1, text.size(), f);
 }

externals/fmt/include/fmt/format.h

@@ -249,6 +249,18 @@ FMT_CONSTEXPR inline void abort_fuzzing_if(bool condition) {
 #endif
 }
 
+template <typename CharT, CharT... C> struct string_literal {
+  static constexpr CharT value[sizeof...(C)] = {C...};
+  constexpr operator basic_string_view<CharT>() const {
+    return {value, sizeof...(C)};
+  }
+};
+
+#if FMT_CPLUSPLUS < 201703L
+template <typename CharT, CharT... C>
+constexpr CharT string_literal<CharT, C...>::value[sizeof...(C)];
+#endif
+
 template <typename Streambuf> class formatbuf : public Streambuf {
  private:
   using char_type = typename Streambuf::char_type;
@@ -287,7 +299,8 @@ FMT_CONSTEXPR20 auto bit_cast(const From& from) -> To {
   if (is_constant_evaluated()) return std::bit_cast<To>(from);
 #endif
   auto to = To();
-  std::memcpy(&to, &from, sizeof(to));
+  // The cast suppresses a bogus -Wclass-memaccess on GCC.
+  std::memcpy(static_cast<void*>(&to), &from, sizeof(to));
   return to;
 }
 
@@ -366,10 +379,12 @@ class uint128_fallback {
   }
   FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback {
     if (shift == 64) return {0, hi_};
+    if (shift > 64) return uint128_fallback(0, hi_) >> (shift - 64);
     return {hi_ >> shift, (hi_ << (64 - shift)) | (lo_ >> shift)};
   }
   FMT_CONSTEXPR auto operator<<(int shift) const -> uint128_fallback {
     if (shift == 64) return {lo_, 0};
+    if (shift > 64) return uint128_fallback(lo_, 0) << (shift - 64);
     return {hi_ << shift | (lo_ >> (64 - shift)), (lo_ << shift)};
   }
   FMT_CONSTEXPR auto operator>>=(int shift) -> uint128_fallback& {
@@ -389,11 +404,11 @@ class uint128_fallback {
       hi_ += (lo_ < n ? 1 : 0);
       return *this;
     }
-#if FMT_HAS_BUILTIN(__builtin_addcll)
+#if FMT_HAS_BUILTIN(__builtin_addcll) && !defined(__ibmxl__)
     unsigned long long carry;
     lo_ = __builtin_addcll(lo_, n, 0, &carry);
     hi_ += carry;
-#elif FMT_HAS_BUILTIN(__builtin_ia32_addcarryx_u64)
+#elif FMT_HAS_BUILTIN(__builtin_ia32_addcarryx_u64) && !defined(__ibmxl__)
     unsigned long long result;
     auto carry = __builtin_ia32_addcarryx_u64(0, lo_, n, &result);
     lo_ = result;
@@ -592,19 +607,23 @@ FMT_CONSTEXPR inline auto utf8_decode(const char* s, uint32_t* c, int* e)
   constexpr const int shiftc[] = {0, 18, 12, 6, 0};
   constexpr const int shifte[] = {0, 6, 4, 2, 0};
 
-  int len = code_point_length(s);
-  const char* next = s + len;
+  int len = code_point_length_impl(*s);
+  // Compute the pointer to the next character early so that the next
+  // iteration can start working on the next character. Neither Clang
+  // nor GCC figure out this reordering on their own.
+  const char* next = s + len + !len;
+
+  using uchar = unsigned char;
 
   // Assume a four-byte character and load four bytes. Unused bits are
   // shifted out.
-  *c = uint32_t(s[0] & masks[len]) << 18;
-  *c |= uint32_t(s[1] & 0x3f) << 12;
-  *c |= uint32_t(s[2] & 0x3f) << 6;
-  *c |= uint32_t(s[3] & 0x3f) << 0;
+  *c = uint32_t(uchar(s[0]) & masks[len]) << 18;
+  *c |= uint32_t(uchar(s[1]) & 0x3f) << 12;
+  *c |= uint32_t(uchar(s[2]) & 0x3f) << 6;
+  *c |= uint32_t(uchar(s[3]) & 0x3f) << 0;
   *c >>= shiftc[len];
 
   // Accumulate the various error conditions.
-  using uchar = unsigned char;
   *e = (*c < mins[len]) << 6;       // non-canonical encoding
   *e |= ((*c >> 11) == 0x1b) << 7;  // surrogate half?
   *e |= (*c > 0x10FFFF) << 8;       // out of range?
@@ -628,8 +647,8 @@ FMT_CONSTEXPR void for_each_codepoint(string_view s, F f) {
     auto error = 0;
     auto end = utf8_decode(buf_ptr, &cp, &error);
     bool result = f(error ? invalid_code_point : cp,
-                    string_view(ptr, to_unsigned(end - buf_ptr)));
-    return result ? end : nullptr;
+                    string_view(ptr, error ? 1 : to_unsigned(end - buf_ptr)));
+    return result ? (error ? buf_ptr + 1 : end) : nullptr;
   };
   auto p = s.data();
   const size_t block_size = 4;  // utf8_decode always reads blocks of 4 chars.
@@ -919,8 +938,11 @@ struct is_contiguous<basic_memory_buffer<T, SIZE, Allocator>> : std::true_type {
 };
 
 namespace detail {
+#ifdef _WIN32
+FMT_API bool write_console(std::FILE* f, string_view text);
+#endif
 FMT_API void print(std::FILE*, string_view);
-}
+}  // namespace detail
 
 /** A formatting error such as invalid format string. */
 FMT_CLASS_API
@@ -1213,7 +1235,7 @@ FMT_CONSTEXPR20 auto format_decimal(Char* out, UInt value, int size)
 
 template <typename Char, typename UInt, typename Iterator,
           FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<Iterator>>::value)>
-inline auto format_decimal(Iterator out, UInt value, int size)
+FMT_CONSTEXPR inline auto format_decimal(Iterator out, UInt value, int size)
     -> format_decimal_result<Iterator> {
   // Buffer is large enough to hold all digits (digits10 + 1).
   Char buffer[digits10<UInt>() + 1];
@@ -1274,8 +1296,6 @@ template <> struct float_info<float> {
   static const int small_divisor = 10;
   static const int min_k = -31;
   static const int max_k = 46;
-  static const int divisibility_check_by_5_threshold = 39;
-  static const int case_fc_pm_half_lower_threshold = -1;
   static const int shorter_interval_tie_lower_threshold = -35;
   static const int shorter_interval_tie_upper_threshold = -35;
 };
@@ -1288,8 +1308,6 @@ template <> struct float_info<double> {
   static const int small_divisor = 100;
   static const int min_k = -292;
   static const int max_k = 326;
-  static const int divisibility_check_by_5_threshold = 86;
-  static const int case_fc_pm_half_lower_threshold = -2;
   static const int shorter_interval_tie_lower_threshold = -77;
   static const int shorter_interval_tie_upper_threshold = -77;
 };
@@ -1543,7 +1561,10 @@ FMT_CONSTEXPR inline fp get_cached_power(int min_exponent,
   const int dec_exp_step = 8;
   index = (index - first_dec_exp - 1) / dec_exp_step + 1;
   pow10_exponent = first_dec_exp + index * dec_exp_step;
-  return {data::pow10_significands[index], data::pow10_exponents[index]};
+  // Using *(x + index) instead of x[index] avoids an issue with some compilers
+  // using the EDG frontend (e.g. nvhpc/22.3 in C++17 mode).
+  return {*(data::pow10_significands + index),
+          *(data::pow10_exponents + index)};
 }
 
 #ifndef _MSC_VER
@@ -1724,18 +1745,18 @@ inline auto find_escape(const char* begin, const char* end)
   return result;
 }
 
-#define FMT_STRING_IMPL(s, base, explicit)                                 \
-  [] {                                                                     \
-    /* Use the hidden visibility as a workaround for a GCC bug (#1973). */ \
-    /* Use a macro-like name to avoid shadowing warnings. */               \
-    struct FMT_GCC_VISIBILITY_HIDDEN FMT_COMPILE_STRING : base {           \
-      using char_type = fmt::remove_cvref_t<decltype(s[0])>;               \
-      FMT_MAYBE_UNUSED FMT_CONSTEXPR explicit                              \
-      operator fmt::basic_string_view<char_type>() const {                 \
-        return fmt::detail_exported::compile_string_to_view<char_type>(s); \
-      }                                                                    \
-    };                                                                     \
-    return FMT_COMPILE_STRING();                                           \
+#define FMT_STRING_IMPL(s, base, explicit)                                    \
+  [] {                                                                        \
+    /* Use the hidden visibility as a workaround for a GCC bug (#1973). */    \
+    /* Use a macro-like name to avoid shadowing warnings. */                  \
+    struct FMT_GCC_VISIBILITY_HIDDEN FMT_COMPILE_STRING : base {              \
+      using char_type FMT_MAYBE_UNUSED = fmt::remove_cvref_t<decltype(s[0])>; \
+      FMT_MAYBE_UNUSED FMT_CONSTEXPR explicit                                 \
+      operator fmt::basic_string_view<char_type>() const {                    \
+        return fmt::detail_exported::compile_string_to_view<char_type>(s);    \
+      }                                                                       \
+    };                                                                        \
+    return FMT_COMPILE_STRING();                                              \
   }()
 
 /**
@@ -1981,7 +2002,10 @@ auto write_int_localized(OutputIt out, UInt value, unsigned prefix,
                               grouping.count_separators(num_digits));
   return write_padded<align::right>(
       out, specs, size, size, [&](reserve_iterator<OutputIt> it) {
-        if (prefix != 0) *it++ = static_cast<Char>(prefix);
+        if (prefix != 0) {
+          char sign = static_cast<char>(prefix);
+          *it++ = static_cast<Char>(sign);
+        }
         return grouping.apply(it, string_view(digits, to_unsigned(num_digits)));
       });
 }
@@ -2123,29 +2147,30 @@ class counting_iterator {
   FMT_UNCHECKED_ITERATOR(counting_iterator);
 
   struct value_type {
-    template <typename T> void operator=(const T&) {}
+    template <typename T> FMT_CONSTEXPR void operator=(const T&) {}
   };
 
-  counting_iterator() : count_(0) {}
+  FMT_CONSTEXPR counting_iterator() : count_(0) {}
 
-  size_t count() const { return count_; }
+  FMT_CONSTEXPR size_t count() const { return count_; }
 
-  counting_iterator& operator++() {
+  FMT_CONSTEXPR counting_iterator& operator++() {
     ++count_;
     return *this;
   }
-  counting_iterator operator++(int) {
+  FMT_CONSTEXPR counting_iterator operator++(int) {
     auto it = *this;
     ++*this;
     return it;
   }
 
-  friend counting_iterator operator+(counting_iterator it, difference_type n) {
+  FMT_CONSTEXPR friend counting_iterator operator+(counting_iterator it,
+                                                   difference_type n) {
     it.count_ += static_cast<size_t>(n);
     return it;
   }
 
-  value_type operator*() const { return {}; }
+  FMT_CONSTEXPR value_type operator*() const { return {}; }
 };
 
 template <typename Char, typename OutputIt>
@@ -2991,7 +3016,7 @@ FMT_CONSTEXPR20 inline void format_dragon(basic_fp<uint128_t> value,
       upper = &upper_store;
     }
   }
-  bool even = (value.f & 1) == 0;
+  int even = static_cast<int>((value.f & 1) == 0);
   if (!upper) upper = &lower;
   if ((flags & dragon::fixup) != 0) {
     if (add_compare(numerator, *upper, denominator) + even <= 0) {

externals/fmt/include/fmt/ostream.h

@@ -10,6 +10,12 @@
 
 #include <fstream>
 #include <ostream>
+#if defined(_WIN32) && defined(__GLIBCXX__)
+#  include <ext/stdio_filebuf.h>
+#  include <ext/stdio_sync_filebuf.h>
+#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
+#  include <__std_stream>
+#endif
 
 #include "format.h"
 
@@ -51,43 +57,50 @@ struct is_streamable<
         (std::is_convertible<T, int>::value && !std::is_enum<T>::value)>>
     : std::false_type {};
 
-template <typename Char> FILE* get_file(std::basic_filebuf<Char>&) {
-  return nullptr;
-}
-
-struct dummy_filebuf {
-  FILE* _Myfile;
-};
-template <typename T, typename U = int> struct ms_filebuf {
-  using type = dummy_filebuf;
-};
-template <typename T> struct ms_filebuf<T, decltype(T::_Myfile, 0)> {
-  using type = T;
-};
-using filebuf_type = ms_filebuf<std::filebuf>::type;
-
-FILE* get_file(filebuf_type& buf);
-
 // Generate a unique explicit instantion in every translation unit using a tag
 // type in an anonymous namespace.
 namespace {
-struct filebuf_access_tag {};
+struct file_access_tag {};
 }  // namespace
-template <typename Tag, typename FileMemberPtr, FileMemberPtr file>
-class filebuf_access {
-  friend FILE* get_file(filebuf_type& buf) { return buf.*file; }
+template <class Tag, class BufType, FILE* BufType::*FileMemberPtr>
+class file_access {
+  friend auto get_file(BufType& obj) -> FILE* { return obj.*FileMemberPtr; }
 };
-template class filebuf_access<filebuf_access_tag,
-                              decltype(&filebuf_type::_Myfile),
-                              &filebuf_type::_Myfile>;
 
-inline bool write(std::filebuf& buf, fmt::string_view data) {
-  FILE* f = get_file(buf);
-  if (!f) return false;
-  print(f, data);
-  return true;
+#if FMT_MSC_VERSION
+template class file_access<file_access_tag, std::filebuf,
+                           &std::filebuf::_Myfile>;
+auto get_file(std::filebuf&) -> FILE*;
+#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
+template class file_access<file_access_tag, std::__stdoutbuf<char>,
+                           &std::__stdoutbuf<char>::__file_>;
+auto get_file(std::__stdoutbuf<char>&) -> FILE*;
+#endif
+
+inline bool write_ostream_unicode(std::ostream& os, fmt::string_view data) {
+#if FMT_MSC_VERSION
+  if (auto* buf = dynamic_cast<std::filebuf*>(os.rdbuf()))
+    if (FILE* f = get_file(*buf)) return write_console(f, data);
+#elif defined(_WIN32) && defined(__GLIBCXX__)
+  auto* rdbuf = os.rdbuf();
+  FILE* c_file;
+  if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
+    c_file = fbuf->file();
+  else if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_filebuf<char>*>(rdbuf))
+    c_file = fbuf->file();
+  else
+    return false;
+  if (c_file) return write_console(c_file, data);
+#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
+  if (auto* buf = dynamic_cast<std::__stdoutbuf<char>*>(os.rdbuf()))
+    if (FILE* f = get_file(*buf)) return write_console(f, data);
+#else
+  ignore_unused(os, data);
+#endif
+  return false;
 }
-inline bool write(std::wfilebuf&, fmt::basic_string_view<wchar_t>) {
+inline bool write_ostream_unicode(std::wostream&,
+                                  fmt::basic_string_view<wchar_t>) {
   return false;
 }
 
@@ -95,10 +108,6 @@ inline bool write(std::wfilebuf&, fmt::basic_string_view<wchar_t>) {
 // It is a separate function rather than a part of vprint to simplify testing.
 template <typename Char>
 void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
-  if (const_check(FMT_MSC_VERSION)) {
-    auto filebuf = dynamic_cast<std::basic_filebuf<Char>*>(os.rdbuf());
-    if (filebuf && write(*filebuf, {buf.data(), buf.size()})) return;
-  }
   const Char* buf_data = buf.data();
   using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
   unsigned_streamsize size = buf.size();
@@ -130,6 +139,8 @@ template <typename T> struct streamed_view { const T& value; };
 // Formats an object of type T that has an overloaded ostream operator<<.
 template <typename Char>
 struct basic_ostream_formatter : formatter<basic_string_view<Char>, Char> {
+  void set_debug_format() = delete;
+
   template <typename T, typename OutputIt>
   auto format(const T& value, basic_format_context<OutputIt, Char>& ctx) const
       -> OutputIt {
@@ -142,12 +153,13 @@ struct basic_ostream_formatter : formatter<basic_string_view<Char>, Char> {
 
 using ostream_formatter = basic_ostream_formatter<char>;
 
-template <typename T>
-struct formatter<detail::streamed_view<T>> : ostream_formatter {
+template <typename T, typename Char>
+struct formatter<detail::streamed_view<T>, Char>
+    : basic_ostream_formatter<Char> {
   template <typename OutputIt>
   auto format(detail::streamed_view<T> view,
-              basic_format_context<OutputIt, char>& ctx) const -> OutputIt {
-    return ostream_formatter::format(view.value, ctx);
+              basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
+    return basic_ostream_formatter<Char>::format(view.value, ctx);
   }
 };
 
@@ -175,6 +187,13 @@ struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
   using basic_ostream_formatter<Char>::format;
 };
 
+inline void vprint_directly(std::ostream& os, string_view format_str,
+                            format_args args) {
+  auto buffer = memory_buffer();
+  detail::vformat_to(buffer, format_str, args);
+  detail::write_buffer(os, buffer);
+}
+
 }  // namespace detail
 
 FMT_MODULE_EXPORT template <typename Char>
@@ -183,6 +202,7 @@ void vprint(std::basic_ostream<Char>& os,
             basic_format_args<buffer_context<type_identity_t<Char>>> args) {
   auto buffer = basic_memory_buffer<Char>();
   detail::vformat_to(buffer, format_str, args);
+  if (detail::write_ostream_unicode(os, {buffer.data(), buffer.size()})) return;
   detail::write_buffer(os, buffer);
 }
 
@@ -197,7 +217,11 @@ void vprint(std::basic_ostream<Char>& os,
  */
 FMT_MODULE_EXPORT template <typename... T>
 void print(std::ostream& os, format_string<T...> fmt, T&&... args) {
-  vprint(os, fmt, fmt::make_format_args(args...));
+  const auto& vargs = fmt::make_format_args(args...);
+  if (detail::is_utf8())
+    vprint(os, fmt, vargs);
+  else
+    detail::vprint_directly(os, fmt, vargs);
 }
 
 FMT_MODULE_EXPORT

externals/fmt/include/fmt/ranges.h

@@ -270,8 +270,8 @@ template <typename Range>
 using uncvref_type = remove_cvref_t<range_reference_type<Range>>;
 
 template <typename Range>
-using uncvref_first_type = remove_cvref_t<
-    decltype(std::declval<range_reference_type<Range>>().first)>;
+using uncvref_first_type =
+    remove_cvref_t<decltype(std::declval<range_reference_type<Range>>().first)>;
 
 template <typename Range>
 using uncvref_second_type = remove_cvref_t<
@@ -326,18 +326,37 @@ struct formatter<TupleT, Char,
                  enable_if_t<fmt::is_tuple_like<TupleT>::value &&
                              fmt::is_tuple_formattable<TupleT, Char>::value>> {
  private:
+  basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
+  basic_string_view<Char> opening_bracket_ =
+      detail::string_literal<Char, '('>{};
+  basic_string_view<Char> closing_bracket_ =
+      detail::string_literal<Char, ')'>{};
+
   // C++11 generic lambda for format().
   template <typename FormatContext> struct format_each {
     template <typename T> void operator()(const T& v) {
-      if (i > 0) out = detail::write_delimiter(out);
+      if (i > 0) out = detail::copy_str<Char>(separator, out);
       out = detail::write_range_entry<Char>(out, v);
       ++i;
     }
     int i;
     typename FormatContext::iterator& out;
+    basic_string_view<Char> separator;
   };
 
  public:
+  FMT_CONSTEXPR formatter() {}
+
+  FMT_CONSTEXPR void set_separator(basic_string_view<Char> sep) {
+    separator_ = sep;
+  }
+
+  FMT_CONSTEXPR void set_brackets(basic_string_view<Char> open,
+                                  basic_string_view<Char> close) {
+    opening_bracket_ = open;
+    closing_bracket_ = close;
+  }
+
   template <typename ParseContext>
   FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
     return ctx.begin();
@@ -347,9 +366,9 @@ struct formatter<TupleT, Char,
   auto format(const TupleT& values, FormatContext& ctx) const
       -> decltype(ctx.out()) {
     auto out = ctx.out();
-    *out++ = '(';
-    detail::for_each(values, format_each<FormatContext>{0, out});
-    *out++ = ')';
+    out = detail::copy_str<Char>(opening_bracket_, out);
+    detail::for_each(values, format_each<FormatContext>{0, out, separator_});
+    out = detail::copy_str<Char>(closing_bracket_, out);
     return out;
   }
 };
@@ -357,9 +376,8 @@ struct formatter<TupleT, Char,
 template <typename T, typename Char> struct is_range {
   static constexpr const bool value =
       detail::is_range_<T>::value && !detail::is_std_string_like<T>::value &&
-      !detail::is_map<T>::value &&
       !std::is_convertible<T, std::basic_string<Char>>::value &&
-      !std::is_constructible<detail::std_string_view<Char>, T>::value;
+      !std::is_convertible<T, detail::std_string_view<Char>>::value;
 };
 
 namespace detail {
@@ -390,40 +408,88 @@ using range_formatter_type = conditional_t<
 template <typename R>
 using maybe_const_range =
     conditional_t<has_const_begin_end<R>::value, const R, R>;
+
+// Workaround a bug in MSVC 2015 and earlier.
+#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
+template <typename R, typename Char>
+struct is_formattable_delayed
+    : disjunction<
+          is_formattable<uncvref_type<maybe_const_range<R>>, Char>,
+          has_fallback_formatter<uncvref_type<maybe_const_range<R>>, Char>> {};
+#endif
+
 }  // namespace detail
 
-template <typename R, typename Char>
-struct formatter<
-    R, Char,
-    enable_if_t<
-        conjunction<fmt::is_range<R, Char>
-// Workaround a bug in MSVC 2017 and earlier.
-#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
-        ,
-        disjunction<
-          is_formattable<detail::uncvref_type<detail::maybe_const_range<R>>,
-                         Char>,
-          detail::has_fallback_formatter<
-             detail::uncvref_type<detail::maybe_const_range<R>>, Char>
-        >
-#endif
-        >::value
-        >> {
+template <typename T, typename Char, typename Enable = void>
+struct range_formatter;
 
-  using range_type = detail::maybe_const_range<R>;
-  using formatter_type =
-      detail::range_formatter_type<Char, detail::uncvref_type<range_type>>;
-  formatter_type underlying_;
+template <typename T, typename Char>
+struct range_formatter<
+    T, Char,
+    enable_if_t<conjunction<
+        std::is_same<T, remove_cvref_t<T>>,
+        disjunction<is_formattable<T, Char>,
+                    detail::has_fallback_formatter<T, Char>>>::value>> {
+ private:
+  detail::range_formatter_type<Char, T> underlying_;
   bool custom_specs_ = false;
+  basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
+  basic_string_view<Char> opening_bracket_ =
+      detail::string_literal<Char, '['>{};
+  basic_string_view<Char> closing_bracket_ =
+      detail::string_literal<Char, ']'>{};
+
+  template <class U>
+  FMT_CONSTEXPR static auto maybe_set_debug_format(U& u, int)
+      -> decltype(u.set_debug_format()) {
+    u.set_debug_format();
+  }
+
+  template <class U>
+  FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {}
+
+  FMT_CONSTEXPR void maybe_set_debug_format() {
+    maybe_set_debug_format(underlying_, 0);
+  }
+
+ public:
+  FMT_CONSTEXPR range_formatter() {}
+
+  FMT_CONSTEXPR auto underlying() -> detail::range_formatter_type<Char, T>& {
+    return underlying_;
+  }
+
+  FMT_CONSTEXPR void set_separator(basic_string_view<Char> sep) {
+    separator_ = sep;
+  }
+
+  FMT_CONSTEXPR void set_brackets(basic_string_view<Char> open,
+                                  basic_string_view<Char> close) {
+    opening_bracket_ = open;
+    closing_bracket_ = close;
+  }
 
   template <typename ParseContext>
   FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
     auto it = ctx.begin();
     auto end = ctx.end();
-    if (it == end || *it == '}') return it;
+    if (it == end || *it == '}') {
+      maybe_set_debug_format();
+      return it;
+    }
+
+    if (*it == 'n') {
+      set_brackets({}, {});
+      ++it;
+    }
+
+    if (*it == '}') {
+      maybe_set_debug_format();
+      return it;
+    }
 
     if (*it != ':')
-      FMT_THROW(format_error("no top-level range formatters supported"));
+      FMT_THROW(format_error("no other top-level range formatters supported"));
 
     custom_specs_ = true;
     ++it;
@@ -431,75 +497,100 @@ struct formatter<
     return underlying_.parse(ctx);
   }
 
-  template <typename FormatContext>
-  auto format(range_type& range, FormatContext& ctx) const
-      -> decltype(ctx.out()) {
-    Char prefix = detail::is_set<R>::value ? '{' : '[';
-    Char postfix = detail::is_set<R>::value ? '}' : ']';
+  template <typename R, class FormatContext>
+  auto format(R&& range, FormatContext& ctx) const -> decltype(ctx.out()) {
     detail::range_mapper<buffer_context<Char>> mapper;
     auto out = ctx.out();
-    *out++ = prefix;
+    out = detail::copy_str<Char>(opening_bracket_, out);
     int i = 0;
     auto it = detail::range_begin(range);
     auto end = detail::range_end(range);
     for (; it != end; ++it) {
-      if (i > 0) out = detail::write_delimiter(out);
-      if (custom_specs_) {
-        ctx.advance_to(out);
-        out = underlying_.format(mapper.map(*it), ctx);
-      } else {
-        out = detail::write_range_entry<Char>(out, *it);
-      }
+      if (i > 0) out = detail::copy_str<Char>(separator_, out);
+      ;
+      ctx.advance_to(out);
+      out = underlying_.format(mapper.map(*it), ctx);
       ++i;
     }
-    *out++ = postfix;
+    out = detail::copy_str<Char>(closing_bracket_, out);
     return out;
   }
 };
 
-template <typename T, typename Char>
-struct formatter<
-    T, Char,
-    enable_if_t<conjunction<detail::is_map<T>
-// Workaround a bug in MSVC 2017 and earlier.
-#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
-        ,
-        disjunction<
-          is_formattable<detail::uncvref_first_type<T>, Char>,
-          detail::has_fallback_formatter<detail::uncvref_first_type<T>, Char>
-        >,
-        disjunction<
-          is_formattable<detail::uncvref_second_type<T>, Char>,
-          detail::has_fallback_formatter<detail::uncvref_second_type<T>, Char>
-        >
-#endif
-    >::value
-    >> {
-  template <typename ParseContext>
-  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
-    return ctx.begin();
+enum class range_format { disabled, map, set, sequence, string, debug_string };
+
+namespace detail {
+template <typename T> struct range_format_kind_ {
+  static constexpr auto value = std::is_same<range_reference_type<T>, T>::value
+                                    ? range_format::disabled
+                                : is_map<T>::value ? range_format::map
+                                : is_set<T>::value ? range_format::set
+                                                   : range_format::sequence;
+};
+
+template <range_format K, typename R, typename Char, typename Enable = void>
+struct range_default_formatter;
+
+template <range_format K>
+using range_format_constant = std::integral_constant<range_format, K>;
+
+template <range_format K, typename R, typename Char>
+struct range_default_formatter<
+    K, R, Char,
+    enable_if_t<(K == range_format::sequence || K == range_format::map ||
+                 K == range_format::set)>> {
+  using range_type = detail::maybe_const_range<R>;
+  range_formatter<detail::uncvref_type<range_type>, Char> underlying_;
+
+  FMT_CONSTEXPR range_default_formatter() { init(range_format_constant<K>()); }
+
+  FMT_CONSTEXPR void init(range_format_constant<range_format::set>) {
+    underlying_.set_brackets(detail::string_literal<Char, '{'>{},
+                             detail::string_literal<Char, '}'>{});
   }
 
-  template <
-      typename FormatContext, typename U,
-      FMT_ENABLE_IF(
-          std::is_same<U, conditional_t<detail::has_const_begin_end<T>::value,
-                                        const T, T>>::value)>
-  auto format(U& map, FormatContext& ctx) const -> decltype(ctx.out()) {
-    auto out = ctx.out();
-    *out++ = '{';
-    int i = 0;
-    for (const auto& item : map) {
-      if (i > 0) out = detail::write_delimiter(out);
-      out = detail::write_range_entry<Char>(out, item.first);
-      *out++ = ':';
-      *out++ = ' ';
-      out = detail::write_range_entry<Char>(out, item.second);
-      ++i;
-    }
-    *out++ = '}';
-    return out;
+  FMT_CONSTEXPR void init(range_format_constant<range_format::map>) {
+    underlying_.set_brackets(detail::string_literal<Char, '{'>{},
+                             detail::string_literal<Char, '}'>{});
+    underlying_.underlying().set_brackets({}, {});
+    underlying_.underlying().set_separator(
+        detail::string_literal<Char, ':', ' '>{});
   }
+
+  FMT_CONSTEXPR void init(range_format_constant<range_format::sequence>) {}
+
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return underlying_.parse(ctx);
+  }
+
+  template <typename FormatContext>
+  auto format(range_type& range, FormatContext& ctx) const
+      -> decltype(ctx.out()) {
+    return underlying_.format(range, ctx);
+  }
+};
+}  // namespace detail
+
+template <typename T, typename Char, typename Enable = void>
+struct range_format_kind
+    : conditional_t<
+          is_range<T, Char>::value, detail::range_format_kind_<T>,
+          std::integral_constant<range_format, range_format::disabled>> {};
+
+template <typename R, typename Char>
+struct formatter<
+    R, Char,
+    enable_if_t<conjunction<bool_constant<range_format_kind<R, Char>::value !=
+                                          range_format::disabled>
+// Workaround a bug in MSVC 2015 and earlier.
+#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
+                            ,
+                            detail::is_formattable_delayed<R, Char>
+#endif
+                            >::value>>
+    : detail::range_default_formatter<range_format_kind<R, Char>::value, R,
+                                      Char> {
 };
 
 template <typename Char, typename... T> struct tuple_join_view : detail::view {

externals/fmt/include/fmt/std.h

@@ -57,10 +57,6 @@ inline void write_escaped_path<std::filesystem::path::value_type>(
 
 }  // namespace detail
 
-#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
-// For MSVC 2017 and earlier using the partial specialization
-// would cause an ambiguity error, therefore we provide it only
-// conditionally.
 template <typename Char>
 struct formatter<std::filesystem::path, Char>
     : formatter<basic_string_view<Char>> {
@@ -73,7 +69,6 @@ struct formatter<std::filesystem::path, Char>
         basic_string_view<Char>(quoted.data(), quoted.size()), ctx);
   }
 };
-#endif
 FMT_END_NAMESPACE
 #endif
 

externals/fmt/include/fmt/xchar.h

@@ -9,7 +9,6 @@
 #define FMT_XCHAR_H_
 
 #include <cwchar>
-#include <tuple>
 
 #include "format.h"
 
@@ -30,9 +29,11 @@ using wmemory_buffer = basic_memory_buffer<wchar_t>;
 #if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
 // Workaround broken conversion on older gcc.
 template <typename... Args> using wformat_string = wstring_view;
+inline auto runtime(wstring_view s) -> wstring_view { return s; }
 #else
 template <typename... Args>
 using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
+inline auto runtime(wstring_view s) -> basic_runtime<wchar_t> { return {{s}}; }
 #endif
 
 template <> struct is_char<wchar_t> : std::true_type {};
@@ -82,20 +83,16 @@ auto vformat(basic_string_view<Char> format_str,
   return to_string(buffer);
 }
 
-#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 409
-template <typename... Args>
-using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
-#endif
-
 template <typename... T>
 auto format(wformat_string<T...> fmt, T&&... args) -> std::wstring {
-  return vformat(fmt, fmt::make_wformat_args(args...));
+  return vformat(fmt::wstring_view(fmt), fmt::make_wformat_args(args...));
 }
 
 // Pass char_t as a default template parameter instead of using
 // std::basic_string<char_t<S>> to reduce the symbol size.
 template <typename S, typename... Args, typename Char = char_t<S>,
-          FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+          FMT_ENABLE_IF(!std::is_same<Char, char>::value &&
+                        !std::is_same<Char, wchar_t>::value)>
 auto format(const S& format_str, Args&&... args) -> std::basic_string<Char> {
   return vformat(detail::to_string_view(format_str),
                  fmt::make_format_args<buffer_context<Char>>(args...));

externals/fmt/support/appveyor-build.py

@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-# Build the project on AppVeyor.
-
-import os
-from subprocess import check_call
-
-build = os.environ['BUILD']
-config = os.environ['CONFIGURATION']
-platform = os.environ['PLATFORM']
-path = os.environ['PATH']
-image = os.environ['APPVEYOR_BUILD_WORKER_IMAGE']
-jobid = os.environ['APPVEYOR_JOB_ID']
-cmake_command = ['cmake', '-DFMT_PEDANTIC=ON', '-DCMAKE_BUILD_TYPE=' + config, '..']
-if build == 'mingw':
-    cmake_command.append('-GMinGW Makefiles')
-    build_command = ['mingw32-make', '-j4']
-    test_command = ['mingw32-make', 'test']
-    # Remove the path to Git bin directory from $PATH because it breaks
-    # MinGW config.
-    path = path.replace(r'C:\Program Files (x86)\Git\bin', '')
-    os.environ['PATH'] = r'C:\MinGW\bin;' + path
-else:
-    # Add MSBuild 14.0 to PATH as described in
-    # http://help.appveyor.com/discussions/problems/2229-v140-not-found-on-vs2105rc.
-    os.environ['PATH'] = r'C:\Program Files (x86)\MSBuild\15.0\Bin;' + path
-    if image == 'Visual Studio 2019':
-        generator = 'Visual Studio 16 2019'
-        if platform == 'x64':
-            cmake_command.extend(['-A', 'x64'])
-    else:
-        if image == 'Visual Studio 2015':
-            generator = 'Visual Studio 14 2015'
-        elif image == 'Visual Studio 2017':
-            generator = 'Visual Studio 15 2017'
-        if platform == 'x64':
-            generator += ' Win64'
-    cmake_command.append('-G' + generator)
-    build_command = ['cmake', '--build', '.', '--config', config, '--', '/m:4']
-    test_command = ['ctest', '-C', config]
-
-check_call(cmake_command)
-check_call(build_command)
-check_call(test_command)

externals/fmt/support/appveyor.yml

@@ -1,31 +0,0 @@
-configuration:
-  - Debug
-  - Release
-
-clone_depth: 1
-
-image:
-  - Visual Studio 2015
-
-platform:
-  - x64
-
-environment:
-  CTEST_OUTPUT_ON_FAILURE: 1
-  MSVC_DEFAULT_OPTIONS: ON
-  BUILD: msvc
-
-before_build:
- - mkdir build
- - cd build
-
-build_script:
-  - python ../support/appveyor-build.py
-
-on_failure:
-  - appveyor PushArtifact Testing/Temporary/LastTest.log
-  - appveyor AddTest test
-
-# Uncomment this to debug AppVeyor failures.
-#on_finish:
-#  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))

externals/fmt/support/manage.py

@@ -183,6 +183,12 @@ def update_site(env):
         with rewrite(index) as b:
             b.data = b.data.replace(
                 'doc/latest/index.html#format-string-syntax', 'syntax.html')
+        # Fix issues in syntax.rst.
+        index = os.path.join(target_doc_dir, 'syntax.rst')
+        with rewrite(index) as b:
+            b.data = b.data.replace(
+                '..productionlist:: sf\n', '.. productionlist:: sf\n ')
+            b.data = b.data.replace('Examples:\n', 'Examples::\n')
         # Build the docs.
         html_dir = os.path.join(env.build_dir, 'html')
         if os.path.exists(html_dir):

externals/fmt/test/CMakeLists.txt

@@ -8,9 +8,6 @@ target_link_libraries(test-main gtest fmt)
 
 function(add_fmt_executable name)
   add_executable(${name} ${ARGN})
-  if (MINGW)
-    target_link_libraries(${name} -static-libgcc -static-libstdc++)
-  endif ()
   # (Wstringop-overflow) - [meta-bug] bogus/missing -Wstringop-overflow warnings
   #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88443
   # Bogus -Wstringop-overflow warning
@@ -19,6 +16,8 @@ function(add_fmt_executable name)
   #   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353
   if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND
       NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
+    target_compile_options(${name} PRIVATE -Wno-stringop-overflow)
+    # The linker flag is needed for LTO.
     target_link_libraries(${name} -Wno-stringop-overflow)
   endif ()
 endfunction()

externals/fmt/test/chrono-test.cc

@@ -121,6 +121,13 @@ TEST(chrono_test, format_tm) {
       make_tm(2000, 1, 2, 12, 14, 16),    // W52
       make_tm(2000, 1, 3, 12, 14, 16)     // W1
   };
+
+#if defined(__MINGW32__) && !defined(_UCRT)
+  GTEST_SKIP() << "Skip the rest of this test because it relies on strftime() "
+                  "conforming to C99, but on this platform, MINGW + MSVCRT, "
+                  "the function conforms only to C89.";
+#endif
+
   const std::string iso_week_spec = "%Y-%m-%d: %G %g %V";
   for (auto ctm : tm_list) {
     // Calculate tm_yday, tm_wday, etc.
@@ -261,12 +268,16 @@ TEST(chrono_test, time_point) {
       "%Oe", "%a",  "%A",  "%w",  "%Ow", "%u",  "%Ou", "%H",  "%OH",
       "%I",  "%OI", "%M",  "%OM", "%S",  "%OS", "%x",  "%Ex", "%X",
       "%EX", "%D",  "%F",  "%R",  "%T",  "%p",  "%z",  "%Z"};
-  spec_list.push_back("%Y-%m-%d %H:%M:%S");
 #ifndef _WIN32
   // Disabled on Windows because these formats are not consistent among
   // platforms.
   spec_list.insert(spec_list.end(), {"%c", "%Ec", "%r"});
+#elif defined(__MINGW32__) && !defined(_UCRT)
+  // Only C89 conversion specifiers when using MSVCRT instead of UCRT
+  spec_list = {"%%", "%Y", "%y", "%b", "%B", "%m", "%U", "%W", "%j", "%d", "%a",
+               "%A", "%w", "%H", "%I", "%M", "%S", "%x", "%X", "%p", "%Z"};
 #endif
+  spec_list.push_back("%Y-%m-%d %H:%M:%S");
 
   for (const auto& spec : spec_list) {
     auto t = std::chrono::system_clock::to_time_t(t1);

externals/fmt/test/compile-test.cc

@@ -227,10 +227,14 @@ TEST(compile_test, format_to_n) {
   EXPECT_STREQ("2a", buffer);
 }
 
-TEST(compile_test, formatted_size) {
-  EXPECT_EQ(2, fmt::formatted_size(FMT_COMPILE("{0}"), 42));
-  EXPECT_EQ(5, fmt::formatted_size(FMT_COMPILE("{0:<4.2f}"), 42.0));
+#ifdef __cpp_lib_bit_cast
+TEST(compile_test, constexpr_formatted_size) {
+  FMT_CONSTEXPR20 size_t s1 = fmt::formatted_size(FMT_COMPILE("{0}"), 42);
+  EXPECT_EQ(2, s1);
+  FMT_CONSTEXPR20 size_t s2 = fmt::formatted_size(FMT_COMPILE("{0:<4.2f}"), 42.0);
+  EXPECT_EQ(5, s2);
 }
+#endif
 
 TEST(compile_test, text_and_arg) {
   EXPECT_EQ(">>>42<<<", fmt::format(FMT_COMPILE(">>>{}<<<"), 42));

externals/fmt/test/core-test.cc

@@ -9,7 +9,9 @@
 #include "test-assert.h"
 // clang-format on
 
+#define I 42  // simulate https://en.cppreference.com/w/c/numeric/complex/I
 #include "fmt/core.h"
+#undef I
 
 #include <algorithm>    // std::copy_n
 #include <climits>      // INT_MAX
@@ -584,6 +586,7 @@ struct test_parse_context {
 
   constexpr int next_arg_id() { return 11; }
   template <typename Id> FMT_CONSTEXPR void check_arg_id(Id) {}
+  FMT_CONSTEXPR void check_dynamic_spec(int) {}
 
   constexpr const char* begin() { return nullptr; }
   constexpr const char* end() { return nullptr; }

externals/fmt/test/format-impl-test.cc

@@ -376,6 +376,14 @@ bool operator>=(const double_double& lhs, const double_double& rhs) {
   return lhs.a + lhs.b >= rhs.a + rhs.b;
 }
 
+struct slow_float {
+  float value;
+
+  explicit constexpr slow_float(float val = 0) : value(val) {}
+  operator float() const { return value; }
+  auto operator-() const -> slow_float { return slow_float(-value); }
+};
+
 namespace std {
 template <> struct is_floating_point<double_double> : std::true_type {};
 template <> struct numeric_limits<double_double> {
@@ -383,14 +391,35 @@ template <> struct numeric_limits<double_double> {
   static constexpr bool is_iec559 = true;
   static constexpr int digits = 106;
 };
+
+template <> struct is_floating_point<slow_float> : std::true_type {};
+template <> struct numeric_limits<slow_float> : numeric_limits<float> {};
 }  // namespace std
 
+FMT_BEGIN_NAMESPACE
+namespace detail {
+template <> struct is_fast_float<slow_float> : std::false_type {};
+namespace dragonbox {
+template <> struct float_info<slow_float> {
+  using carrier_uint = uint32_t;
+  static const int exponent_bits = 8;
+};
+}  // namespace dragonbox
+}  // namespace detail
+FMT_END_NAMESPACE
+
 TEST(format_impl_test, write_double_double) {
   auto s = std::string();
   fmt::detail::write<char>(std::back_inserter(s), double_double(42), {});
-#ifndef _MSC_VER  // MSVC has an issue with specializing is_floating_point.
-  EXPECT_EQ(s, "42");
-#endif
+  // Specializing is_floating_point is broken in MSVC.
+  if (!FMT_MSC_VERSION) EXPECT_EQ(s, "42");
+}
+
+TEST(format_impl_test, write_dragon_even) {
+  auto s = std::string();
+  fmt::detail::write<char>(std::back_inserter(s), slow_float(33554450.0f), {});
+  // Specializing is_floating_point is broken in MSVC.
+  if (!FMT_MSC_VERSION) EXPECT_EQ(s, "33554450");
 }
 
 #ifdef _WIN32
@@ -401,3 +430,118 @@ TEST(format_impl_test, write_console_signature) {
   (void)p;
 }
 #endif
+
+// A public domain branchless UTF-8 decoder by Christopher Wellons:
+// https://github.com/skeeto/branchless-utf8
+constexpr bool unicode_is_surrogate(uint32_t c) {
+  return c >= 0xD800U && c <= 0xDFFFU;
+}
+
+FMT_CONSTEXPR char* utf8_encode(char* s, uint32_t c) {
+  if (c >= (1UL << 16)) {
+    s[0] = static_cast<char>(0xf0 | (c >> 18));
+    s[1] = static_cast<char>(0x80 | ((c >> 12) & 0x3f));
+    s[2] = static_cast<char>(0x80 | ((c >> 6) & 0x3f));
+    s[3] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
+    return s + 4;
+  } else if (c >= (1UL << 11)) {
+    s[0] = static_cast<char>(0xe0 | (c >> 12));
+    s[1] = static_cast<char>(0x80 | ((c >> 6) & 0x3f));
+    s[2] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
+    return s + 3;
+  } else if (c >= (1UL << 7)) {
+    s[0] = static_cast<char>(0xc0 | (c >> 6));
+    s[1] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
+    return s + 2;
+  } else {
+    s[0] = static_cast<char>(c);
+    return s + 1;
+  }
+}
+
+// Make sure it can decode every character
+TEST(format_impl_test, utf8_decode_decode_all) {
+  for (uint32_t i = 0; i < 0x10ffff; i++) {
+    if (!unicode_is_surrogate(i)) {
+      int e;
+      uint32_t c;
+      char buf[8] = {0};
+      char* end = utf8_encode(buf, i);
+      const char* res = fmt::detail::utf8_decode(buf, &c, &e);
+      EXPECT_EQ(end, res);
+      EXPECT_EQ(c, i);
+      EXPECT_EQ(e, 0);
+    }
+  }
+}
+
+// Reject everything outside of U+0000..U+10FFFF
+TEST(format_impl_test, utf8_decode_out_of_range) {
+  for (uint32_t i = 0x110000; i < 0x1fffff; i++) {
+    int e;
+    uint32_t c;
+    char buf[8] = {0};
+    utf8_encode(buf, i);
+    const char* end = fmt::detail::utf8_decode(buf, &c, &e);
+    EXPECT_NE(e, 0);
+    EXPECT_EQ(end - buf, 4);
+  }
+}
+
+// Does it reject all surrogate halves?
+TEST(format_impl_test, utf8_decode_surrogate_halves) {
+  for (uint32_t i = 0xd800; i <= 0xdfff; i++) {
+    int e;
+    uint32_t c;
+    char buf[8] = {0};
+    utf8_encode(buf, i);
+    fmt::detail::utf8_decode(buf, &c, &e);
+    EXPECT_NE(e, 0);
+  }
+}
+
+// How about non-canonical encodings?
+TEST(format_impl_test, utf8_decode_non_canonical_encodings) {
+  int e;
+  uint32_t c;
+  const char* end;
+
+  char buf2[8] = {char(0xc0), char(0xA4)};
+  end = fmt::detail::utf8_decode(buf2, &c, &e);
+  EXPECT_NE(e, 0);           // non-canonical len 2
+  EXPECT_EQ(end, buf2 + 2);  // non-canonical recover 2
+
+  char buf3[8] = {char(0xe0), char(0x80), char(0xA4)};
+  end = fmt::detail::utf8_decode(buf3, &c, &e);
+  EXPECT_NE(e, 0);           // non-canonical len 3
+  EXPECT_EQ(end, buf3 + 3);  // non-canonical recover 3
+
+  char buf4[8] = {char(0xf0), char(0x80), char(0x80), char(0xA4)};
+  end = fmt::detail::utf8_decode(buf4, &c, &e);
+  EXPECT_NE(e, 0);           // non-canonical encoding len 4
+  EXPECT_EQ(end, buf4 + 4);  // non-canonical recover 4
+}
+
+// Let's try some bogus byte sequences
+TEST(format_impl_test, utf8_decode_bogus_byte_sequences) {
+  int e;
+  uint32_t c;
+
+  // Invalid first byte
+  char buf0[4] = {char(0xff)};
+  auto len = fmt::detail::utf8_decode(buf0, &c, &e) - buf0;
+  EXPECT_NE(e, 0);    // "bogus [ff] 0x%02x U+%04lx", e, (unsigned long)c);
+  EXPECT_EQ(len, 1);  // "bogus [ff] recovery %d", len);
+
+  // Invalid first byte
+  char buf1[4] = {char(0x80)};
+  len = fmt::detail::utf8_decode(buf1, &c, &e) - buf1;
+  EXPECT_NE(e, 0);    // "bogus [80] 0x%02x U+%04lx", e, (unsigned long)c);
+  EXPECT_EQ(len, 1);  // "bogus [80] recovery %d", len);
+
+  // Looks like a two-byte sequence but second byte is wrong
+  char buf2[4] = {char(0xc0), char(0x0a)};
+  len = fmt::detail::utf8_decode(buf2, &c, &e) - buf2;
+  EXPECT_NE(e, 0);    // "bogus [c0 0a] 0x%02x U+%04lx", e, (unsigned long)c
+  EXPECT_EQ(len, 2);  // "bogus [c0 0a] recovery %d", len);
+}