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/*
* Copyright (c) 2020, Emanuel Sprung <emanuel.sprung@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Types.h>
#ifdef AK_OS_SERENITY
# include <bits/regex_defs.h>
#else
# include <LibC/bits/regex_defs.h>
#endif
namespace regex {
enum class Error : u8 {
NoError = __Regex_NoError,
InvalidPattern = __Regex_InvalidPattern, // Invalid regular expression.
InvalidCollationElement = __Regex_InvalidCollationElement, // Invalid collating element referenced.
InvalidCharacterClass = __Regex_InvalidCharacterClass, // Invalid character class type referenced.
InvalidTrailingEscape = __Regex_InvalidTrailingEscape, // Trailing \ in pattern.
InvalidNumber = __Regex_InvalidNumber, // Number in \digit invalid or in error.
MismatchingBracket = __Regex_MismatchingBracket, // [ ] imbalance.
MismatchingParen = __Regex_MismatchingParen, // ( ) imbalance.
MismatchingBrace = __Regex_MismatchingBrace, // { } imbalance.
InvalidBraceContent = __Regex_InvalidBraceContent, // Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.
InvalidBracketContent = __Regex_InvalidBracketContent, // Content of [] invalid.
InvalidRange = __Regex_InvalidRange, // Invalid endpoint in range expression.
InvalidRepetitionMarker = __Regex_InvalidRepetitionMarker, // ?, * or + not preceded by valid regular expression.
ReachedMaxRecursion = __Regex_ReachedMaxRecursion, // MaximumRecursion has been reached.
EmptySubExpression = __Regex_EmptySubExpression, // Sub expression has empty content.
InvalidCaptureGroup = __Regex_InvalidCaptureGroup, // Content of capture group is invalid.
InvalidNameForCaptureGroup = __Regex_InvalidNameForCaptureGroup, // Name of capture group is invalid.
InvalidNameForProperty = __Regex_InvalidNameForProperty, // Name of property is invalid.
DuplicateNamedCapture = __Regex_DuplicateNamedCapture, // Name of property is invalid.
InvalidCharacterClassEscape = __Regex_InvalidCharacterClassEscape, // Invalid escaped entity in character class.
};
inline String get_error_string(Error error)
{
switch (error) {
case Error::NoError:
return "No error";
case Error::InvalidPattern:
return "Invalid regular expression.";
case Error::InvalidCollationElement:
return "Invalid collating element referenced.";
case Error::InvalidCharacterClass:
return "Invalid character class type referenced.";
case Error::InvalidTrailingEscape:
return "Trailing \\ in pattern.";
case Error::InvalidNumber:
return "Number in \\digit invalid or in error.";
case Error::MismatchingBracket:
return "[ ] imbalance.";
case Error::MismatchingParen:
return "( ) imbalance.";
case Error::MismatchingBrace:
return "{ } imbalance.";
case Error::InvalidBraceContent:
return "Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.";
case Error::InvalidBracketContent:
return "Content of [] invalid.";
case Error::InvalidRange:
return "Invalid endpoint in range expression.";
case Error::InvalidRepetitionMarker:
return "?, * or + not preceded by valid regular expression.";
case Error::ReachedMaxRecursion:
return "Maximum recursion has been reached.";
case Error::EmptySubExpression:
return "Sub expression has empty content.";
case Error::InvalidCaptureGroup:
return "Content of capture group is invalid.";
case Error::InvalidNameForCaptureGroup:
return "Name of capture group is invalid.";
case Error::InvalidNameForProperty:
return "Name of property is invalid.";
case Error::DuplicateNamedCapture:
return "Duplicate capture group name";
case Error::InvalidCharacterClassEscape:
return "Invalid escaped entity in character class.";
}
return "Undefined error.";
}
}
using regex::get_error_string;
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