| // Copyright 2006-2008 Google Inc. All Rights Reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * 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. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "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 THE COPYRIGHT |
| // OWNER 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. |
| |
| #ifndef V8_JSREGEXP_H_ |
| #define V8_JSREGEXP_H_ |
| |
| namespace v8 { namespace internal { |
| |
| class RegExpImpl { |
| public: |
| // Creates a regular expression literal in the old space. |
| // This function calls the garbage collector if necessary. |
| static Handle<Object> CreateRegExpLiteral(Handle<String> pattern, |
| Handle<String> flags, |
| bool* has_pending_exception); |
| |
| // Returns a string representation of a regular expression. |
| // Implements RegExp.prototype.toString, see ECMA-262 section 15.10.6.4. |
| // This function calls the garbage collector if necessary. |
| static Handle<String> ToString(Handle<Object> value); |
| |
| static Handle<Object> JsreCompile(Handle<JSValue> re, |
| Handle<String> pattern, |
| Handle<String> flags); |
| |
| // Implements RegExp.prototype.exec(string) function. |
| // See ECMA-262 section 15.10.6.2. |
| // This function calls the garbage collector if necessary. |
| static Handle<Object> JsreExec(Handle<JSValue> regexp, |
| Handle<String> subject, |
| Handle<Object> index); |
| |
| // Call RegExp.prototyp.exec(string) in a loop. |
| // Used by String.prototype.match and String.prototype.replace. |
| // This function calls the garbage collector if necessary. |
| static Handle<Object> JsreExecGlobal(Handle<JSValue> regexp, |
| Handle<String> subject); |
| |
| static void NewSpaceCollectionPrologue(); |
| static void OldSpaceCollectionPrologue(); |
| |
| private: |
| // Converts a source string to a 16 bit flat string. The string |
| // will be either sequential or it will be a SlicedString backed |
| // by a flat string. |
| static Handle<String> StringToTwoByte(Handle<String> pattern); |
| static Handle<String> CachedStringToTwoByte(Handle<String> pattern); |
| |
| static String* last_ascii_string_; |
| static String* two_byte_cached_string_; |
| |
| // Returns the caputure from the re. |
| static int JsreCapture(Handle<JSValue> re); |
| static ByteArray* JsreInternal(Handle<JSValue> re); |
| |
| // Call jsRegExpExecute once |
| static Handle<Object> JsreExecOnce(Handle<JSValue> regexp, |
| int num_captures, |
| Handle<String> subject, |
| int previous_index, |
| const uc16* utf8_subject, |
| int* ovector, |
| int ovector_length); |
| |
| // Set the subject cache. The previous string buffer is not deleted, so the |
| // caller should ensure that it doesn't leak. |
| static void SetSubjectCache(String* subject, char* utf8_subject, |
| int uft8_length, int character_position, |
| int utf8_position); |
| |
| // A one element cache of the last utf8_subject string and its length. The |
| // subject JS String object is cached in the heap. We also cache a |
| // translation between position and utf8 position. |
| static char* utf8_subject_cache_; |
| static int utf8_length_cache_; |
| static int utf8_position_; |
| static int character_position_; |
| }; |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_JSREGEXP_H_ |