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YarrErrorCode.cpp
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/*
* Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "YarrErrorCode.h"
#include "Error.h"
namespace JSC { namespace Yarr {
const char* errorMessage(ErrorCode error)
{
#define REGEXP_ERROR_PREFIX "Invalid regular expression: "
// The order of this array must match the ErrorCode enum.
static const char* errorMessages[] = {
nullptr, // NoError
REGEXP_ERROR_PREFIX "regular expression too large", // PatternTooLarge
REGEXP_ERROR_PREFIX "numbers out of order in {} quantifier", // QuantifierOutOfOrder
REGEXP_ERROR_PREFIX "nothing to repeat", // QuantifierWithoutAtom
REGEXP_ERROR_PREFIX "number too large in {} quantifier", // QuantifierTooLarge
REGEXP_ERROR_PREFIX "incomplete {} quantifier for Unicode pattern", // QuantifierIncomplete
REGEXP_ERROR_PREFIX "missing )", // MissingParentheses
REGEXP_ERROR_PREFIX "unmatched ] or } bracket for Unicode pattern", // BracketUnmatched
REGEXP_ERROR_PREFIX "unmatched parentheses", // ParenthesesUnmatched
REGEXP_ERROR_PREFIX "unrecognized character after (?", // ParenthesesTypeInvalid
REGEXP_ERROR_PREFIX "invalid group specifier name", // InvalidGroupName
REGEXP_ERROR_PREFIX "duplicate group specifier name", // DuplicateGroupName
REGEXP_ERROR_PREFIX "missing terminating ] for character class", // CharacterClassUnmatched
REGEXP_ERROR_PREFIX "range out of order in character class", // CharacterClassRangeOutOfOrder
REGEXP_ERROR_PREFIX "invalid range in character class for Unicode pattern", // CharacterClassRangeInvalid
REGEXP_ERROR_PREFIX "\\ at end of pattern", // EscapeUnterminated
REGEXP_ERROR_PREFIX "invalid Unicode \\u escape", // InvalidUnicodeEscape
REGEXP_ERROR_PREFIX "invalid Unicode code point \\u{} escape", // InvalidUnicodeCodePointEscape
REGEXP_ERROR_PREFIX "invalid backreference for Unicode pattern", // InvalidBackreference
REGEXP_ERROR_PREFIX "invalid \\k<> named backreference", // InvalidNamedBackReference
REGEXP_ERROR_PREFIX "invalid escaped character for Unicode pattern", // InvalidIdentityEscape
REGEXP_ERROR_PREFIX "invalid octal escape for Unicode pattern", // InvalidOctalEscape
REGEXP_ERROR_PREFIX "invalid \\c escape for Unicode pattern", // InvalidControlLetterEscape
REGEXP_ERROR_PREFIX "invalid property expression", // InvalidUnicodePropertyExpression
REGEXP_ERROR_PREFIX "too many nested disjunctions", // TooManyDisjunctions
REGEXP_ERROR_PREFIX "pattern exceeds string length limits", // OffsetTooLarge
REGEXP_ERROR_PREFIX "invalid flags" // InvalidRegularExpressionFlags
};
return errorMessages[static_cast<unsigned>(error)];
}
JSObject* errorToThrow(JSGlobalObject* globalObject, ErrorCode error)
{
switch (error) {
case ErrorCode::NoError:
ASSERT_NOT_REACHED();
return nullptr;
case ErrorCode::PatternTooLarge:
case ErrorCode::QuantifierOutOfOrder:
case ErrorCode::QuantifierWithoutAtom:
case ErrorCode::QuantifierTooLarge:
case ErrorCode::QuantifierIncomplete:
case ErrorCode::MissingParentheses:
case ErrorCode::BracketUnmatched:
case ErrorCode::ParenthesesUnmatched:
case ErrorCode::ParenthesesTypeInvalid:
case ErrorCode::InvalidGroupName:
case ErrorCode::DuplicateGroupName:
case ErrorCode::CharacterClassUnmatched:
case ErrorCode::CharacterClassRangeOutOfOrder:
case ErrorCode::CharacterClassRangeInvalid:
case ErrorCode::EscapeUnterminated:
case ErrorCode::InvalidUnicodeEscape:
case ErrorCode::InvalidUnicodeCodePointEscape:
case ErrorCode::InvalidBackreference:
case ErrorCode::InvalidNamedBackReference:
case ErrorCode::InvalidIdentityEscape:
case ErrorCode::InvalidOctalEscape:
case ErrorCode::InvalidControlLetterEscape:
case ErrorCode::InvalidUnicodePropertyExpression:
case ErrorCode::OffsetTooLarge:
case ErrorCode::InvalidRegularExpressionFlags:
return createSyntaxError(globalObject, errorMessage(error));
case ErrorCode::TooManyDisjunctions:
return createOutOfMemoryError(globalObject, errorMessage(error));
}
ASSERT_NOT_REACHED();
return nullptr;
}
} } // namespace JSC::Yarr