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102 lines
4.9 KiB
C++
102 lines
4.9 KiB
C++
/*
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* Copyright (c) 2020, Emanuel Sprung <emanuel.sprung@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/Types.h>
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#ifdef __serenity__
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# include <regex.h>
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#else
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# include <LibC/regex.h>
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#endif
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namespace regex {
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enum class Error : u8 {
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NoError = __Regex_NoError,
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InvalidPattern = __Regex_InvalidPattern, // Invalid regular expression.
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InvalidCollationElement = __Regex_InvalidCollationElement, // Invalid collating element referenced.
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InvalidCharacterClass = __Regex_InvalidCharacterClass, // Invalid character class type referenced.
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InvalidTrailingEscape = __Regex_InvalidTrailingEscape, // Trailing \ in pattern.
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InvalidNumber = __Regex_InvalidNumber, // Number in \digit invalid or in error.
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MismatchingBracket = __Regex_MismatchingBracket, // [ ] imbalance.
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MismatchingParen = __Regex_MismatchingParen, // ( ) imbalance.
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MismatchingBrace = __Regex_MismatchingBrace, // { } imbalance.
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InvalidBraceContent = __Regex_InvalidBraceContent, // Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.
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InvalidBracketContent = __Regex_InvalidBracketContent, // Content of [] invalid.
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InvalidRange = __Regex_InvalidRange, // Invalid endpoint in range expression.
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InvalidRepetitionMarker = __Regex_InvalidRepetitionMarker, // ?, * or + not preceded by valid regular expression.
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ReachedMaxRecursion = __Regex_ReachedMaxRecursion, // MaximumRecursion has been reached.
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EmptySubExpression = __Regex_EmptySubExpression, // Sub expression has empty content.
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InvalidCaptureGroup = __Regex_InvalidCaptureGroup, // Content of capture group is invalid.
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InvalidNameForCaptureGroup = __Regex_InvalidNameForCaptureGroup, // Name of capture group is invalid.
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};
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inline String get_error_string(Error error)
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{
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switch (error) {
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case Error::NoError:
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return "No error";
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case Error::InvalidPattern:
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return "Invalid regular expression.";
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case Error::InvalidCollationElement:
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return "Invalid collating element referenced.";
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case Error::InvalidCharacterClass:
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return "Invalid character class type referenced.";
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case Error::InvalidTrailingEscape:
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return "Trailing \\ in pattern.";
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case Error::InvalidNumber:
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return "Number in \\digit invalid or in error.";
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case Error::MismatchingBracket:
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return "[ ] imbalance.";
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case Error::MismatchingParen:
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return "( ) imbalance.";
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case Error::MismatchingBrace:
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return "{ } imbalance.";
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case Error::InvalidBraceContent:
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return "Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.";
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case Error::InvalidBracketContent:
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return "Content of [] invalid.";
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case Error::InvalidRange:
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return "Invalid endpoint in range expression.";
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case Error::InvalidRepetitionMarker:
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return "?, * or + not preceded by valid regular expression.";
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case Error::ReachedMaxRecursion:
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return "Maximum recursion has been reached.";
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case Error::EmptySubExpression:
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return "Sub expression has empty content.";
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case Error::InvalidCaptureGroup:
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return "Content of capture group is invalid.";
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case Error::InvalidNameForCaptureGroup:
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return "Name of capture group is invalid.";
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}
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return "Undefined error.";
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}
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}
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using regex::Error;
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using regex::get_error_string;
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