diff options
Diffstat (limited to 'JavaScriptCore/kjs/regexp_object.cpp')
| -rw-r--r-- | JavaScriptCore/kjs/regexp_object.cpp | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/JavaScriptCore/kjs/regexp_object.cpp b/JavaScriptCore/kjs/regexp_object.cpp deleted file mode 100644 index 217c8db..0000000 --- a/JavaScriptCore/kjs/regexp_object.cpp +++ /dev/null @@ -1,475 +0,0 @@ -/* - * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) - * Copyright (C) 2003, 2007, 2008 Apple Inc. All Rights Reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#include "config.h" -#include "regexp_object.h" -#include "regexp_object.lut.h" - -#include "array_instance.h" -#include "array_object.h" -#include "error_object.h" -#include "internal.h" -#include "object.h" -#include "operations.h" -#include "regexp.h" -#include "types.h" -#include "value.h" -#include "UnusedParam.h" - -#include <stdio.h> - -namespace KJS { - -// ------------------------------ RegExpPrototype --------------------------- - -static JSValue* regExpProtoFuncTest(ExecState*, JSObject*, const List&); -static JSValue* regExpProtoFuncExec(ExecState*, JSObject*, const List&); -static JSValue* regExpProtoFuncCompile(ExecState*, JSObject*, const List&); -static JSValue* regExpProtoFuncToString(ExecState*, JSObject*, const List&); - -// ECMA 15.10.5 - -const ClassInfo RegExpPrototype::info = { "RegExpPrototype", 0, 0 }; - -RegExpPrototype::RegExpPrototype(ExecState* exec, ObjectPrototype* objectPrototype, FunctionPrototype* functionPrototype) - : JSObject(objectPrototype) -{ - static const Identifier* compilePropertyName = new Identifier("compile"); - static const Identifier* execPropertyName = new Identifier("exec"); - static const Identifier* testPropertyName = new Identifier("test"); - - putDirectFunction(new PrototypeFunction(exec, functionPrototype, 0, *compilePropertyName, regExpProtoFuncCompile), DontEnum); - putDirectFunction(new PrototypeFunction(exec, functionPrototype, 0, *execPropertyName, regExpProtoFuncExec), DontEnum); - putDirectFunction(new PrototypeFunction(exec, functionPrototype, 0, *testPropertyName, regExpProtoFuncTest), DontEnum); - putDirectFunction(new PrototypeFunction(exec, functionPrototype, 0, exec->propertyNames().toString, regExpProtoFuncToString), DontEnum); -} - -// ------------------------------ Functions --------------------------- - -JSValue* regExpProtoFuncTest(ExecState* exec, JSObject* thisObj, const List& args) -{ - if (!thisObj->inherits(&RegExpImp::info)) - return throwError(exec, TypeError); - - return static_cast<RegExpImp*>(thisObj)->test(exec, args); -} - -JSValue* regExpProtoFuncExec(ExecState* exec, JSObject* thisObj, const List& args) -{ - if (!thisObj->inherits(&RegExpImp::info)) - return throwError(exec, TypeError); - - return static_cast<RegExpImp*>(thisObj)->exec(exec, args); -} - -JSValue* regExpProtoFuncCompile(ExecState* exec, JSObject* thisObj, const List& args) -{ - if (!thisObj->inherits(&RegExpImp::info)) - return throwError(exec, TypeError); - - RefPtr<RegExp> regExp; - JSValue* arg0 = args[0]; - JSValue* arg1 = args[1]; - - if (arg0->isObject(&RegExpImp::info)) { - if (!arg1->isUndefined()) - return throwError(exec, TypeError, "Cannot supply flags when constructing one RegExp from another."); - regExp = static_cast<RegExpImp*>(arg0)->regExp(); - } else { - UString pattern = args.isEmpty() ? UString("") : arg0->toString(exec); - UString flags = arg1->isUndefined() ? UString("") : arg1->toString(exec); - regExp = new RegExp(pattern, flags); - } - - if (!regExp->isValid()) - return throwError(exec, SyntaxError, UString("Invalid regular expression: ").append(regExp->errorMessage())); - - static_cast<RegExpImp*>(thisObj)->setRegExp(regExp.release()); - static_cast<RegExpImp*>(thisObj)->setLastIndex(0); - return jsUndefined(); -} - -JSValue* regExpProtoFuncToString(ExecState* exec, JSObject* thisObj, const List&) -{ - if (!thisObj->inherits(&RegExpImp::info)) { - if (thisObj->inherits(&RegExpPrototype::info)) - return jsString("//"); - return throwError(exec, TypeError); - } - - UString result = "/" + thisObj->get(exec, exec->propertyNames().source)->toString(exec) + "/"; - if (thisObj->get(exec, exec->propertyNames().global)->toBoolean(exec)) - result += "g"; - if (thisObj->get(exec, exec->propertyNames().ignoreCase)->toBoolean(exec)) - result += "i"; - if (thisObj->get(exec, exec->propertyNames().multiline)->toBoolean(exec)) - result += "m"; - return jsString(result); -} - -// ------------------------------ RegExpImp ------------------------------------ - -const ClassInfo RegExpImp::info = { "RegExp", 0, &RegExpImpTable }; - -/* Source for regexp_object.lut.h -@begin RegExpImpTable 5 - global RegExpImp::Global DontDelete|ReadOnly|DontEnum - ignoreCase RegExpImp::IgnoreCase DontDelete|ReadOnly|DontEnum - multiline RegExpImp::Multiline DontDelete|ReadOnly|DontEnum - source RegExpImp::Source DontDelete|ReadOnly|DontEnum - lastIndex RegExpImp::LastIndex DontDelete|DontEnum -@end -*/ - -RegExpImp::RegExpImp(RegExpPrototype* regexpProto, PassRefPtr<RegExp> regExp) - : JSObject(regexpProto) - , m_regExp(regExp) - , m_lastIndex(0) -{ -} - -RegExpImp::~RegExpImp() -{ -} - -bool RegExpImp::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot) -{ - return getStaticValueSlot<RegExpImp, JSObject>(exec, &RegExpImpTable, this, propertyName, slot); -} - -JSValue* RegExpImp::getValueProperty(ExecState*, int token) const -{ - switch (token) { - case Global: - return jsBoolean(m_regExp->global()); - case IgnoreCase: - return jsBoolean(m_regExp->ignoreCase()); - case Multiline: - return jsBoolean(m_regExp->multiline()); - case Source: - return jsString(m_regExp->pattern()); - case LastIndex: - return jsNumber(m_lastIndex); - } - - ASSERT_NOT_REACHED(); - return 0; -} - -void RegExpImp::put(ExecState* exec, const Identifier& propertyName, JSValue* value, int attributes) -{ - lookupPut<RegExpImp, JSObject>(exec, propertyName, value, attributes, &RegExpImpTable, this); -} - -void RegExpImp::putValueProperty(ExecState* exec, int token, JSValue* value, int) -{ - UNUSED_PARAM(token); - ASSERT(token == LastIndex); - m_lastIndex = value->toInteger(exec); -} - -bool RegExpImp::match(ExecState* exec, const List& args) -{ - RegExpObjectImp* regExpObj = exec->lexicalGlobalObject()->regExpConstructor(); - - UString input; - if (!args.isEmpty()) - input = args[0]->toString(exec); - else { - input = regExpObj->input(); - if (input.isNull()) { - throwError(exec, GeneralError, "No input."); - return false; - } - } - - bool global = get(exec, exec->propertyNames().global)->toBoolean(exec); - int lastIndex = 0; - if (global) { - if (m_lastIndex < 0 || m_lastIndex > input.size()) { - m_lastIndex = 0; - return false; - } - lastIndex = static_cast<int>(m_lastIndex); - } - - int foundIndex; - int foundLength; - regExpObj->performMatch(m_regExp.get(), input, lastIndex, foundIndex, foundLength); - - if (global) { - lastIndex = foundIndex < 0 ? 0 : foundIndex + foundLength; - m_lastIndex = lastIndex; - } - - return foundIndex >= 0; -} - -JSValue* RegExpImp::test(ExecState* exec, const List& args) -{ - return jsBoolean(match(exec, args)); -} - -JSValue* RegExpImp::exec(ExecState* exec, const List& args) -{ - return match(exec, args) - ? exec->lexicalGlobalObject()->regExpConstructor()->arrayOfMatches(exec) - : jsNull(); -} - -bool RegExpImp::implementsCall() const -{ - return true; -} - -JSValue* RegExpImp::callAsFunction(ExecState* exec, JSObject*, const List& args) -{ - return RegExpImp::exec(exec, args); -} - -// ------------------------------ RegExpObjectImp ------------------------------ - -const ClassInfo RegExpObjectImp::info = { "Function", &InternalFunctionImp::info, &RegExpObjectImpTable }; - -/* Source for regexp_object.lut.h -@begin RegExpObjectImpTable 21 - input RegExpObjectImp::Input None - $_ RegExpObjectImp::Input DontEnum - multiline RegExpObjectImp::Multiline None - $* RegExpObjectImp::Multiline DontEnum - lastMatch RegExpObjectImp::LastMatch DontDelete|ReadOnly - $& RegExpObjectImp::LastMatch DontDelete|ReadOnly|DontEnum - lastParen RegExpObjectImp::LastParen DontDelete|ReadOnly - $+ RegExpObjectImp::LastParen DontDelete|ReadOnly|DontEnum - leftContext RegExpObjectImp::LeftContext DontDelete|ReadOnly - $` RegExpObjectImp::LeftContext DontDelete|ReadOnly|DontEnum - rightContext RegExpObjectImp::RightContext DontDelete|ReadOnly - $' RegExpObjectImp::RightContext DontDelete|ReadOnly|DontEnum - $1 RegExpObjectImp::Dollar1 DontDelete|ReadOnly - $2 RegExpObjectImp::Dollar2 DontDelete|ReadOnly - $3 RegExpObjectImp::Dollar3 DontDelete|ReadOnly - $4 RegExpObjectImp::Dollar4 DontDelete|ReadOnly - $5 RegExpObjectImp::Dollar5 DontDelete|ReadOnly - $6 RegExpObjectImp::Dollar6 DontDelete|ReadOnly - $7 RegExpObjectImp::Dollar7 DontDelete|ReadOnly - $8 RegExpObjectImp::Dollar8 DontDelete|ReadOnly - $9 RegExpObjectImp::Dollar9 DontDelete|ReadOnly -@end -*/ - -struct RegExpObjectImpPrivate { - // Global search cache / settings - RegExpObjectImpPrivate() : lastNumSubPatterns(0), multiline(false) { } - UString lastInput; - OwnArrayPtr<int> lastOvector; - unsigned lastNumSubPatterns : 31; - bool multiline : 1; -}; - -RegExpObjectImp::RegExpObjectImp(ExecState* exec, FunctionPrototype* funcProto, RegExpPrototype* regProto) - : InternalFunctionImp(funcProto, "RegExp") - , d(new RegExpObjectImpPrivate) -{ - // ECMA 15.10.5.1 RegExp.prototype - putDirect(exec->propertyNames().prototype, regProto, DontEnum | DontDelete | ReadOnly); - - // no. of arguments for constructor - putDirect(exec->propertyNames().length, jsNumber(2), ReadOnly | DontDelete | DontEnum); -} - -/* - To facilitate result caching, exec(), test(), match(), search(), and replace() dipatch regular - expression matching through the performMatch function. We use cached results to calculate, - e.g., RegExp.lastMatch and RegExp.leftParen. -*/ -void RegExpObjectImp::performMatch(RegExp* r, const UString& s, int startOffset, int& position, int& length, int** ovector) -{ - OwnArrayPtr<int> tmpOvector; - position = r->match(s, startOffset, &tmpOvector); - - if (ovector) - *ovector = tmpOvector.get(); - - if (position != -1) { - ASSERT(tmpOvector); - - length = tmpOvector[1] - tmpOvector[0]; - - d->lastInput = s; - d->lastOvector.set(tmpOvector.release()); - d->lastNumSubPatterns = r->numSubpatterns(); - } -} - -JSObject* RegExpObjectImp::arrayOfMatches(ExecState* exec) const -{ - unsigned lastNumSubpatterns = d->lastNumSubPatterns; - ArrayInstance* arr = new ArrayInstance(exec->lexicalGlobalObject()->arrayPrototype(), lastNumSubpatterns + 1); - for (unsigned i = 0; i <= lastNumSubpatterns; ++i) { - int start = d->lastOvector[2 * i]; - if (start >= 0) - arr->put(exec, i, jsString(d->lastInput.substr(start, d->lastOvector[2 * i + 1] - start))); - } - arr->put(exec, exec->propertyNames().index, jsNumber(d->lastOvector[0])); - arr->put(exec, exec->propertyNames().input, jsString(d->lastInput)); - return arr; -} - -JSValue* RegExpObjectImp::getBackref(unsigned i) const -{ - if (d->lastOvector && i <= d->lastNumSubPatterns) - return jsString(d->lastInput.substr(d->lastOvector[2 * i], d->lastOvector[2 * i + 1] - d->lastOvector[2 * i])); - return jsString(""); -} - -JSValue* RegExpObjectImp::getLastParen() const -{ - unsigned i = d->lastNumSubPatterns; - if (i > 0) { - ASSERT(d->lastOvector); - return jsString(d->lastInput.substr(d->lastOvector[2 * i], d->lastOvector[2 * i + 1] - d->lastOvector[2 * i])); - } - return jsString(""); -} - -JSValue *RegExpObjectImp::getLeftContext() const -{ - if (d->lastOvector) - return jsString(d->lastInput.substr(0, d->lastOvector[0])); - return jsString(""); -} - -JSValue *RegExpObjectImp::getRightContext() const -{ - if (d->lastOvector) { - UString s = d->lastInput; - return jsString(s.substr(d->lastOvector[1], s.size() - d->lastOvector[1])); - } - return jsString(""); -} - -bool RegExpObjectImp::getOwnPropertySlot(ExecState *exec, const Identifier& propertyName, PropertySlot& slot) -{ - return getStaticValueSlot<RegExpObjectImp, InternalFunctionImp>(exec, &RegExpObjectImpTable, this, propertyName, slot); -} - -JSValue *RegExpObjectImp::getValueProperty(ExecState*, int token) const -{ - switch (token) { - case Dollar1: - return getBackref(1); - case Dollar2: - return getBackref(2); - case Dollar3: - return getBackref(3); - case Dollar4: - return getBackref(4); - case Dollar5: - return getBackref(5); - case Dollar6: - return getBackref(6); - case Dollar7: - return getBackref(7); - case Dollar8: - return getBackref(8); - case Dollar9: - return getBackref(9); - case Input: - return jsString(d->lastInput); - case Multiline: - return jsBoolean(d->multiline); - case LastMatch: - return getBackref(0); - case LastParen: - return getLastParen(); - case LeftContext: - return getLeftContext(); - case RightContext: - return getRightContext(); - default: - ASSERT(0); - } - - return jsString(""); -} - -void RegExpObjectImp::put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr) -{ - lookupPut<RegExpObjectImp, InternalFunctionImp>(exec, propertyName, value, attr, &RegExpObjectImpTable, this); -} - -void RegExpObjectImp::putValueProperty(ExecState *exec, int token, JSValue *value, int) -{ - switch (token) { - case Input: - d->lastInput = value->toString(exec); - break; - case Multiline: - d->multiline = value->toBoolean(exec); - break; - default: - ASSERT(0); - } -} - -bool RegExpObjectImp::implementsConstruct() const -{ - return true; -} - -// ECMA 15.10.4 -JSObject *RegExpObjectImp::construct(ExecState *exec, const List &args) -{ - JSValue* arg0 = args[0]; - JSValue* arg1 = args[1]; - - if (arg0->isObject(&RegExpImp::info)) { - if (!arg1->isUndefined()) - return throwError(exec, TypeError, "Cannot supply flags when constructing one RegExp from another."); - return static_cast<JSObject*>(arg0); - } - - UString pattern = arg0->isUndefined() ? UString("") : arg0->toString(exec); - UString flags = arg1->isUndefined() ? UString("") : arg1->toString(exec); - - return createRegExpImp(exec, new RegExp(pattern, flags)); -} - -JSObject* RegExpObjectImp::createRegExpImp(ExecState* exec, PassRefPtr<RegExp> regExp) -{ - return regExp->isValid() - ? new RegExpImp(static_cast<RegExpPrototype*>(exec->lexicalGlobalObject()->regExpPrototype()), regExp) - : throwError(exec, SyntaxError, UString("Invalid regular expression: ").append(regExp->errorMessage())); -} - -// ECMA 15.10.3 -JSValue *RegExpObjectImp::callAsFunction(ExecState *exec, JSObject * /*thisObj*/, const List &args) -{ - return construct(exec, args); -} - -const UString& RegExpObjectImp::input() const -{ - // Can detect a distinct initial state that is invisible to JavaScript, by checking for null - // state (since jsString turns null strings to empty strings). - return d->lastInput; -} - -} |