android_external_webkit/JavaScriptCore/wrec/WREC.cpp at froyo · madmack/android_external_webkit · GitHub

History

86 lines (70 loc) · 3.03 KB

Raw

* 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 "WREC.h"

#if ENABLE(WREC)

#include "CharacterClassConstructor.h"

#include "Interpreter.h"

#include "JSGlobalObject.h"

#include "RegisterFile.h"

#include "WRECFunctors.h"

#include "WRECParser.h"

#include "pcre_internal.h"

using namespace WTF;

namespace JSC { namespace WREC {

CompiledRegExp Generator::compileRegExp(JSGlobalData* globalData, const UString& pattern, unsigned* numSubpatterns_ptr, const char** error_ptr, RefPtr<ExecutablePool>& pool, bool ignoreCase, bool multiline)

{

if (pattern.size() > MAX_PATTERN_SIZE) {

*error_ptr = "regular expression too large";

return 0;

}

Parser parser(pattern, ignoreCase, multiline);

Generator& generator = parser.generator();

MacroAssembler::JumpList failures;

MacroAssembler::Jump endOfInput;

generator.generateEnter();

generator.generateSaveIndex();

Label beginPattern(&generator);

parser.parsePattern(failures);

generator.generateReturnSuccess();

failures.link(&generator);

generator.generateIncrementIndex(&endOfInput);

parser.parsePattern(failures);

generator.generateReturnSuccess();

failures.link(&generator);

generator.generateIncrementIndex();

generator.generateJumpIfNotEndOfInput(beginPattern);

endOfInput.link(&generator);

generator.generateReturnFailure();

if (parser.error()) {

*error_ptr = parser.syntaxError(); // NULL in the case of patterns that WREC doesn't support yet.

return 0;

}

*numSubpatterns_ptr = parser.numSubpatterns();

pool = globalData->executableAllocator.poolForSize(generator.size());

return reinterpret_cast<CompiledRegExp>(generator.copyCode(pool.get()));

}

} } // namespace JSC::WREC

#endif // ENABLE(WREC)

android_external_webkit/JavaScriptCore/wrec/WREC.cpp at froyo · madmack/android_external_webkit · GitHub

Expand file tree

Breadcrumbs

WREC.cpp

Latest commit

History

Breadcrumbs

WREC.cpp

File metadata and controls