projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 9dae56ea A |
1 | /* |
| 2 | * Copyright (C) 2008 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * 1. Redistributions of source code must retain the above copyright | |
| 8 | * notice, this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer in the | |
| 11 | * documentation and/or other materials provided with the distribution. | |
| 12 | * | |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 | */ | |
| 25 | ||
| 26 | #include "config.h" | |
| 27 | #include "WREC.h" | |
| 28 | ||
| 29 | #if ENABLE(WREC) | |
| 30 | ||
| 31 | #include "CharacterClassConstructor.h" | |
| 32 | #include "Interpreter.h" | |
| 33 | #include "JSGlobalObject.h" | |
| 34 | #include "RegisterFile.h" | |
| 35 | #include "WRECFunctors.h" | |
| 36 | #include "WRECParser.h" | |
| 37 | #include "pcre_internal.h" | |
| 38 | ||
| 39 | using namespace WTF; | |
| 40 | ||
| 41 | namespace JSC { namespace WREC { | |
| 42 | ||
| 43 | CompiledRegExp Generator::compileRegExp(JSGlobalData* globalData, const UString& pattern, unsigned* numSubpatterns_ptr, const char** error_ptr, RefPtr<ExecutablePool>& pool, bool ignoreCase, bool multiline) | |
| 44 | { | |
| 45 | if (pattern.size() > MAX_PATTERN_SIZE) { | |
| 46 | *error_ptr = "regular expression too large"; | |
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 50 | Parser parser(pattern, ignoreCase, multiline); | |
| 51 | Generator& generator = parser.generator(); | |
| 52 | MacroAssembler::JumpList failures; | |
| 53 | MacroAssembler::Jump endOfInput; | |
| 54 | ||
| 55 | generator.generateEnter(); | |
| 56 | generator.generateSaveIndex(); | |
| 57 | ||
| 58 | Label beginPattern(&generator); | |
| 59 | parser.parsePattern(failures); | |
| 60 | generator.generateReturnSuccess(); | |
| 61 | ||
| 62 | failures.link(&generator); | |
| 63 | generator.generateIncrementIndex(&endOfInput); | |
| 64 | parser.parsePattern(failures); | |
| 65 | generator.generateReturnSuccess(); | |
| 66 | ||
| 67 | failures.link(&generator); | |
| 68 | generator.generateIncrementIndex(); | |
| 69 | generator.generateJumpIfNotEndOfInput(beginPattern); | |
| 70 | ||
| 71 | endOfInput.link(&generator); | |
| 72 | generator.generateReturnFailure(); | |
| 73 | ||
| 74 | if (parser.error()) { | |
| 75 | *error_ptr = parser.syntaxError(); // NULL in the case of patterns that WREC doesn't support yet. | |
| 76 | return 0; | |
| 77 | } | |
| 78 | ||
| 79 | *numSubpatterns_ptr = parser.numSubpatterns(); | |
| 80 | pool = globalData->poolForSize(generator.size()); | |
| 81 | return reinterpret_cast<CompiledRegExp>(generator.copyCode(pool.get())); | |
| 82 | } | |
| 83 | ||
| 84 | } } // namespace JSC::WREC | |
| 85 | ||
| 86 | #endif // ENABLE(WREC) |