131 lines
2.9 KiB
C++
131 lines
2.9 KiB
C++
//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/url
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//
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#ifndef BOOST_URL_GRAMMAR_ERROR_HPP
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#define BOOST_URL_GRAMMAR_ERROR_HPP
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#include <boost/url/detail/config.hpp>
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#include <boost/url/error_types.hpp>
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namespace boost {
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namespace urls {
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namespace grammar {
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/** Error codes returned when using rules
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@see
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@ref condition,
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@ref parse.
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*/
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enum class error
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{
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// VFALCO 3 space indent or
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// else Doxygen malfunctions
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//
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// (informational)
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//
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/**
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* More input is needed to match the rule
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*
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* A rule reached the end of the input,
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* resulting in a partial match. The error
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* is recoverable; the caller may obtain
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* more input if possible and attempt to
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* parse the character buffer again.
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* Custom rules should only return this
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* error if it is completely unambiguous
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* that the rule cannot be matched without
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* more input.
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*/
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need_more = 1,
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/**
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* The rule did not match the input.
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*
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* This error is returned when a rule fails
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* to match the input. The error is recoverable;
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* the caller may rewind the input pointer and
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* attempt to parse again using a different rule.
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*/
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mismatch,
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/**
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* A rule reached the end of a range
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*
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* This indicates that the input was consumed
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* when parsing a @ref range. The @ref range_rule
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* avoids rewinding the input buffer when
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* this error is returned. Thus the consumed
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* characters are be considered part of the
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* range without contributing additional
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* elements.
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*/
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end_of_range,
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/**
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* Leftover input remaining after match.
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*/
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leftover,
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//--------------------------------------------
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//
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// condition::fatal
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//
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//--------------------------------------------
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/**
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* A rule encountered unrecoverable invalid input.
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*
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* This error is returned when input is matching
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* but one of the requirements is violated. For
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* example if a percent escape is found, but
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* one or both characters that follow are not
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* valid hexadecimal digits. This is usually an
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* unrecoverable error.
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*/
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invalid,
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/** An integer overflowed during parsing.
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*/
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out_of_range,
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/**
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* An unspecified syntax error was found.
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*/
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syntax
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};
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//------------------------------------------------
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/** Error conditions for errors received from rules
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@see
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@ref error,
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@ref parse.
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*/
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enum class condition
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{
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/**
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* A fatal error in syntax was encountered.
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This indicates that parsing cannot continue.
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*/
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fatal = 1
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};
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} // grammar
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} // urls
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} // boost
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#include <boost/url/grammar/impl/error.hpp>
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#endif
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