1 /* 2 * Copyright (C) 1999-2000 Harri Porten (porten (at) kde.org) 3 * Copyright (C) 2003, 2007, 2008 Apple Inc. All Rights Reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 * 19 */ 20 21 #include "config.h" 22 #include "RegExpObject.h" 23 24 #include "Error.h" 25 #include "JSArray.h" 26 #include "JSGlobalObject.h" 27 #include "JSString.h" 28 #include "RegExpConstructor.h" 29 #include "RegExpPrototype.h" 30 31 namespace JSC { 32 33 static JSValue regExpObjectGlobal(ExecState*, const Identifier&, const PropertySlot&); 34 static JSValue regExpObjectIgnoreCase(ExecState*, const Identifier&, const PropertySlot&); 35 static JSValue regExpObjectMultiline(ExecState*, const Identifier&, const PropertySlot&); 36 static JSValue regExpObjectSource(ExecState*, const Identifier&, const PropertySlot&); 37 static JSValue regExpObjectLastIndex(ExecState*, const Identifier&, const PropertySlot&); 38 static void setRegExpObjectLastIndex(ExecState*, JSObject*, JSValue); 39 40 } // namespace JSC 41 42 #include "RegExpObject.lut.h" 43 44 namespace JSC { 45 46 ASSERT_CLASS_FITS_IN_CELL(RegExpObject); 47 48 const ClassInfo RegExpObject::info = { "RegExp", 0, 0, ExecState::regExpTable }; 49 50 /* Source for RegExpObject.lut.h 51 @begin regExpTable 52 global regExpObjectGlobal DontDelete|ReadOnly|DontEnum 53 ignoreCase regExpObjectIgnoreCase DontDelete|ReadOnly|DontEnum 54 multiline regExpObjectMultiline DontDelete|ReadOnly|DontEnum 55 source regExpObjectSource DontDelete|ReadOnly|DontEnum 56 lastIndex regExpObjectLastIndex DontDelete|DontEnum 57 @end 58 */ 59 60 RegExpObject::RegExpObject(NonNullPassRefPtr<Structure> structure, NonNullPassRefPtr<RegExp> regExp) 61 : JSObject(structure) 62 , d(new RegExpObjectData(regExp, 0)) 63 { 64 } 65 66 RegExpObject::~RegExpObject() 67 { 68 } 69 70 bool RegExpObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot) 71 { 72 return getStaticValueSlot<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), this, propertyName, slot); 73 } 74 75 bool RegExpObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor) 76 { 77 return getStaticValueDescriptor<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), this, propertyName, descriptor); 78 } 79 80 JSValue regExpObjectGlobal(ExecState*, const Identifier&, const PropertySlot& slot) 81 { 82 return jsBoolean(asRegExpObject(slot.slotBase())->regExp()->global()); 83 } 84 85 JSValue regExpObjectIgnoreCase(ExecState*, const Identifier&, const PropertySlot& slot) 86 { 87 return jsBoolean(asRegExpObject(slot.slotBase())->regExp()->ignoreCase()); 88 } 89 90 JSValue regExpObjectMultiline(ExecState*, const Identifier&, const PropertySlot& slot) 91 { 92 return jsBoolean(asRegExpObject(slot.slotBase())->regExp()->multiline()); 93 } 94 95 JSValue regExpObjectSource(ExecState* exec, const Identifier&, const PropertySlot& slot) 96 { 97 return jsString(exec, asRegExpObject(slot.slotBase())->regExp()->pattern()); 98 } 99 100 JSValue regExpObjectLastIndex(ExecState* exec, const Identifier&, const PropertySlot& slot) 101 { 102 return jsNumber(exec, asRegExpObject(slot.slotBase())->lastIndex()); 103 } 104 105 void RegExpObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot) 106 { 107 lookupPut<RegExpObject, JSObject>(exec, propertyName, value, ExecState::regExpTable(exec), this, slot); 108 } 109 110 void setRegExpObjectLastIndex(ExecState* exec, JSObject* baseObject, JSValue value) 111 { 112 asRegExpObject(baseObject)->setLastIndex(value.toInteger(exec)); 113 } 114 115 JSValue RegExpObject::test(ExecState* exec, const ArgList& args) 116 { 117 return jsBoolean(match(exec, args)); 118 } 119 120 JSValue RegExpObject::exec(ExecState* exec, const ArgList& args) 121 { 122 if (match(exec, args)) 123 return exec->lexicalGlobalObject()->regExpConstructor()->arrayOfMatches(exec); 124 return jsNull(); 125 } 126 127 static JSValue JSC_HOST_CALL callRegExpObject(ExecState* exec, JSObject* function, JSValue, const ArgList& args) 128 { 129 return asRegExpObject(function)->exec(exec, args); 130 } 131 132 CallType RegExpObject::getCallData(CallData& callData) 133 { 134 callData.native.function = callRegExpObject; 135 return CallTypeHost; 136 } 137 138 // Shared implementation used by test and exec. 139 bool RegExpObject::match(ExecState* exec, const ArgList& args) 140 { 141 RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor(); 142 143 UString input = args.isEmpty() ? regExpConstructor->input() : args.at(0).toString(exec); 144 if (input.isNull()) { 145 throwError(exec, GeneralError, makeString("No input to ", toString(exec), ".")); 146 return false; 147 } 148 149 if (!regExp()->global()) { 150 int position; 151 int length; 152 regExpConstructor->performMatch(d->regExp.get(), input, 0, position, length); 153 return position >= 0; 154 } 155 156 if (d->lastIndex < 0 || d->lastIndex > input.size()) { 157 d->lastIndex = 0; 158 return false; 159 } 160 161 int position; 162 int length = 0; 163 regExpConstructor->performMatch(d->regExp.get(), input, static_cast<int>(d->lastIndex), position, length); 164 if (position < 0) { 165 d->lastIndex = 0; 166 return false; 167 } 168 169 d->lastIndex = position + length; 170 return true; 171 } 172 173 } // namespace JSC 174
