diff options
Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/runtime/StringPrototype.cpp')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/runtime/StringPrototype.cpp | 979 |
1 files changed, 0 insertions, 979 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/StringPrototype.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/runtime/StringPrototype.cpp deleted file mode 100644 index d002e07..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/StringPrototype.cpp +++ /dev/null @@ -1,979 +0,0 @@ -/* - * Copyright (C) 1999-2001 Harri Porten (porten@kde.org) - * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. - * Copyright (C) 2009 Torch Mobile, Inc. - * - * 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 "StringPrototype.h" - -#include "CachedCall.h" -#include "Error.h" -#include "Executable.h" -#include "JSGlobalObjectFunctions.h" -#include "JSArray.h" -#include "JSFunction.h" -#include "ObjectPrototype.h" -#include "Operations.h" -#include "PropertyNameArray.h" -#include "RegExpConstructor.h" -#include "RegExpObject.h" -#include <wtf/ASCIICType.h> -#include <wtf/MathExtras.h> -#include <wtf/unicode/Collator.h> - -using namespace WTF; - -namespace JSC { - -ASSERT_CLASS_FITS_IN_CELL(StringPrototype); - -static JSValue JSC_HOST_CALL stringProtoFuncToString(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncCharAt(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncCharCodeAt(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncConcat(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncIndexOf(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncLastIndexOf(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncMatch(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncReplace(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSearch(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSlice(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSplit(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSubstr(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSubstring(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncToLowerCase(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncToUpperCase(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncLocaleCompare(ExecState*, JSObject*, JSValue, const ArgList&); - -static JSValue JSC_HOST_CALL stringProtoFuncBig(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSmall(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncBlink(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncBold(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncFixed(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncItalics(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncStrike(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSub(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncSup(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncFontcolor(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncFontsize(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncAnchor(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncLink(ExecState*, JSObject*, JSValue, const ArgList&); - -static JSValue JSC_HOST_CALL stringProtoFuncTrim(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncTrimLeft(ExecState*, JSObject*, JSValue, const ArgList&); -static JSValue JSC_HOST_CALL stringProtoFuncTrimRight(ExecState*, JSObject*, JSValue, const ArgList&); - -} - -#include "StringPrototype.lut.h" - -namespace JSC { - -const ClassInfo StringPrototype::info = { "String", &StringObject::info, 0, ExecState::stringTable }; - -/* Source for StringPrototype.lut.h -@begin stringTable 26 - toString stringProtoFuncToString DontEnum|Function 0 - valueOf stringProtoFuncToString DontEnum|Function 0 - charAt stringProtoFuncCharAt DontEnum|Function 1 - charCodeAt stringProtoFuncCharCodeAt DontEnum|Function 1 - concat stringProtoFuncConcat DontEnum|Function 1 - indexOf stringProtoFuncIndexOf DontEnum|Function 1 - lastIndexOf stringProtoFuncLastIndexOf DontEnum|Function 1 - match stringProtoFuncMatch DontEnum|Function 1 - replace stringProtoFuncReplace DontEnum|Function 2 - search stringProtoFuncSearch DontEnum|Function 1 - slice stringProtoFuncSlice DontEnum|Function 2 - split stringProtoFuncSplit DontEnum|Function 2 - substr stringProtoFuncSubstr DontEnum|Function 2 - substring stringProtoFuncSubstring DontEnum|Function 2 - toLowerCase stringProtoFuncToLowerCase DontEnum|Function 0 - toUpperCase stringProtoFuncToUpperCase DontEnum|Function 0 - localeCompare stringProtoFuncLocaleCompare DontEnum|Function 1 - - # toLocaleLowerCase and toLocaleUpperCase are currently identical to toLowerCase and toUpperCase - toLocaleLowerCase stringProtoFuncToLowerCase DontEnum|Function 0 - toLocaleUpperCase stringProtoFuncToUpperCase DontEnum|Function 0 - - big stringProtoFuncBig DontEnum|Function 0 - small stringProtoFuncSmall DontEnum|Function 0 - blink stringProtoFuncBlink DontEnum|Function 0 - bold stringProtoFuncBold DontEnum|Function 0 - fixed stringProtoFuncFixed DontEnum|Function 0 - italics stringProtoFuncItalics DontEnum|Function 0 - strike stringProtoFuncStrike DontEnum|Function 0 - sub stringProtoFuncSub DontEnum|Function 0 - sup stringProtoFuncSup DontEnum|Function 0 - fontcolor stringProtoFuncFontcolor DontEnum|Function 1 - fontsize stringProtoFuncFontsize DontEnum|Function 1 - anchor stringProtoFuncAnchor DontEnum|Function 1 - link stringProtoFuncLink DontEnum|Function 1 - trim stringProtoFuncTrim DontEnum|Function 0 - trimLeft stringProtoFuncTrimLeft DontEnum|Function 0 - trimRight stringProtoFuncTrimRight DontEnum|Function 0 -@end -*/ - -// ECMA 15.5.4 -StringPrototype::StringPrototype(ExecState* exec, NonNullPassRefPtr<Structure> structure) - : StringObject(exec, structure) -{ - // The constructor will be added later, after StringConstructor has been built - putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 0), DontDelete | ReadOnly | DontEnum); -} - -bool StringPrototype::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot) -{ - return getStaticFunctionSlot<StringObject>(exec, ExecState::stringTable(exec), this, propertyName, slot); -} - -bool StringPrototype::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor) -{ - return getStaticFunctionDescriptor<StringObject>(exec, ExecState::stringTable(exec), this, propertyName, descriptor); -} - -// ------------------------------ Functions -------------------------- - -static NEVER_INLINE UString substituteBackreferencesSlow(const UString& replacement, const UString& source, const int* ovector, RegExp* reg, int i) -{ - Vector<UChar> substitutedReplacement; - int offset = 0; - do { - if (i + 1 == replacement.size()) - break; - - UChar ref = replacement[i + 1]; - if (ref == '$') { - // "$$" -> "$" - ++i; - substitutedReplacement.append(replacement.data() + offset, i - offset); - offset = i + 1; - continue; - } - - int backrefStart; - int backrefLength; - int advance = 0; - if (ref == '&') { - backrefStart = ovector[0]; - backrefLength = ovector[1] - backrefStart; - } else if (ref == '`') { - backrefStart = 0; - backrefLength = ovector[0]; - } else if (ref == '\'') { - backrefStart = ovector[1]; - backrefLength = source.size() - backrefStart; - } else if (reg && ref >= '0' && ref <= '9') { - // 1- and 2-digit back references are allowed - unsigned backrefIndex = ref - '0'; - if (backrefIndex > reg->numSubpatterns()) - continue; - if (replacement.size() > i + 2) { - ref = replacement[i + 2]; - if (ref >= '0' && ref <= '9') { - backrefIndex = 10 * backrefIndex + ref - '0'; - if (backrefIndex > reg->numSubpatterns()) - backrefIndex = backrefIndex / 10; // Fall back to the 1-digit reference - else - advance = 1; - } - } - if (!backrefIndex) - continue; - backrefStart = ovector[2 * backrefIndex]; - backrefLength = ovector[2 * backrefIndex + 1] - backrefStart; - } else - continue; - - if (i - offset) - substitutedReplacement.append(replacement.data() + offset, i - offset); - i += 1 + advance; - offset = i + 1; - substitutedReplacement.append(source.data() + backrefStart, backrefLength); - } while ((i = replacement.find('$', i + 1)) != -1); - - if (replacement.size() - offset) - substitutedReplacement.append(replacement.data() + offset, replacement.size() - offset); - - substitutedReplacement.shrinkToFit(); - return UString::adopt(substitutedReplacement); -} - -static inline UString substituteBackreferences(const UString& replacement, const UString& source, const int* ovector, RegExp* reg) -{ - int i = replacement.find('$', 0); - if (UNLIKELY(i != -1)) - return substituteBackreferencesSlow(replacement, source, ovector, reg, i); - return replacement; -} - -static inline int localeCompare(const UString& a, const UString& b) -{ - return Collator::userDefault()->collate(reinterpret_cast<const ::UChar*>(a.data()), a.size(), reinterpret_cast<const ::UChar*>(b.data()), b.size()); -} - -JSValue JSC_HOST_CALL stringProtoFuncReplace(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - JSString* sourceVal = thisValue.toThisJSString(exec); - const UString& source = sourceVal->value(exec); - - JSValue pattern = args.at(0); - - JSValue replacement = args.at(1); - UString replacementString; - CallData callData; - CallType callType = replacement.getCallData(callData); - if (callType == CallTypeNone) - replacementString = replacement.toString(exec); - - if (pattern.inherits(&RegExpObject::info)) { - RegExp* reg = asRegExpObject(pattern)->regExp(); - bool global = reg->global(); - - RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor(); - - int lastIndex = 0; - int startPosition = 0; - - Vector<UString::Range, 16> sourceRanges; - Vector<UString, 16> replacements; - - // This is either a loop (if global is set) or a one-way (if not). - if (global && callType == CallTypeJS) { - // reg->numSubpatterns() + 1 for pattern args, + 2 for match start and sourceValue - int argCount = reg->numSubpatterns() + 1 + 2; - JSFunction* func = asFunction(replacement); - CachedCall cachedCall(exec, func, argCount, exec->exceptionSlot()); - if (exec->hadException()) - return jsNull(); - while (true) { - int matchIndex; - int matchLen = 0; - int* ovector; - regExpConstructor->performMatch(reg, source, startPosition, matchIndex, matchLen, &ovector); - if (matchIndex < 0) - break; - - sourceRanges.append(UString::Range(lastIndex, matchIndex - lastIndex)); - - int completeMatchStart = ovector[0]; - unsigned i = 0; - for (; i < reg->numSubpatterns() + 1; ++i) { - int matchStart = ovector[i * 2]; - int matchLen = ovector[i * 2 + 1] - matchStart; - - if (matchStart < 0) - cachedCall.setArgument(i, jsUndefined()); - else - cachedCall.setArgument(i, jsSubstring(exec, source, matchStart, matchLen)); - } - - cachedCall.setArgument(i++, jsNumber(exec, completeMatchStart)); - cachedCall.setArgument(i++, sourceVal); - - cachedCall.setThis(exec->globalThisValue()); - JSValue result = cachedCall.call(); - replacements.append(result.toString(cachedCall.newCallFrame(exec))); - if (exec->hadException()) - break; - - lastIndex = matchIndex + matchLen; - startPosition = lastIndex; - - // special case of empty match - if (matchLen == 0) { - startPosition++; - if (startPosition > source.size()) - break; - } - } - } else { - do { - int matchIndex; - int matchLen = 0; - int* ovector; - regExpConstructor->performMatch(reg, source, startPosition, matchIndex, matchLen, &ovector); - if (matchIndex < 0) - break; - - sourceRanges.append(UString::Range(lastIndex, matchIndex - lastIndex)); - - if (callType != CallTypeNone) { - int completeMatchStart = ovector[0]; - MarkedArgumentBuffer args; - - for (unsigned i = 0; i < reg->numSubpatterns() + 1; ++i) { - int matchStart = ovector[i * 2]; - int matchLen = ovector[i * 2 + 1] - matchStart; - - if (matchStart < 0) - args.append(jsUndefined()); - else - args.append(jsSubstring(exec, source, matchStart, matchLen)); - } - - args.append(jsNumber(exec, completeMatchStart)); - args.append(sourceVal); - - replacements.append(call(exec, replacement, callType, callData, exec->globalThisValue(), args).toString(exec)); - if (exec->hadException()) - break; - } else - replacements.append(substituteBackreferences(replacementString, source, ovector, reg)); - - lastIndex = matchIndex + matchLen; - startPosition = lastIndex; - - // special case of empty match - if (matchLen == 0) { - startPosition++; - if (startPosition > source.size()) - break; - } - } while (global); - } - - if (!lastIndex && replacements.isEmpty()) - return sourceVal; - - if (lastIndex < source.size()) - sourceRanges.append(UString::Range(lastIndex, source.size() - lastIndex)); - - return jsString(exec, source.spliceSubstringsWithSeparators(sourceRanges.data(), sourceRanges.size(), - replacements.data(), replacements.size())); - } - - // Not a regular expression, so treat the pattern as a string. - - UString patternString = pattern.toString(exec); - int matchPos = source.find(patternString); - - if (matchPos == -1) - return sourceVal; - - int matchLen = patternString.size(); - if (callType != CallTypeNone) { - MarkedArgumentBuffer args; - args.append(jsSubstring(exec, source, matchPos, matchLen)); - args.append(jsNumber(exec, matchPos)); - args.append(sourceVal); - - replacementString = call(exec, replacement, callType, callData, exec->globalThisValue(), args).toString(exec); - } - - int ovector[2] = { matchPos, matchPos + matchLen }; - return jsString(exec, source.replaceRange(matchPos, matchLen, substituteBackreferences(replacementString, source, ovector, 0))); -} - -JSValue JSC_HOST_CALL stringProtoFuncToString(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - // Also used for valueOf. - - if (thisValue.isString()) - return thisValue; - - if (thisValue.inherits(&StringObject::info)) - return asStringObject(thisValue)->internalValue(); - - return throwError(exec, TypeError); -} - -JSValue JSC_HOST_CALL stringProtoFuncCharAt(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - unsigned len = s.size(); - JSValue a0 = args.at(0); - if (a0.isUInt32()) { - uint32_t i = a0.asUInt32(); - if (i < len) - return jsSingleCharacterSubstring(exec, s, i); - return jsEmptyString(exec); - } - double dpos = a0.toInteger(exec); - if (dpos >= 0 && dpos < len) - return jsSingleCharacterSubstring(exec, s, static_cast<unsigned>(dpos)); - return jsEmptyString(exec); -} - -JSValue JSC_HOST_CALL stringProtoFuncCharCodeAt(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - unsigned len = s.size(); - JSValue a0 = args.at(0); - if (a0.isUInt32()) { - uint32_t i = a0.asUInt32(); - if (i < len) - return jsNumber(exec, s.data()[i]); - return jsNaN(exec); - } - double dpos = a0.toInteger(exec); - if (dpos >= 0 && dpos < len) - return jsNumber(exec, s[static_cast<int>(dpos)]); - return jsNaN(exec); -} - -JSValue JSC_HOST_CALL stringProtoFuncConcat(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - if (thisValue.isString() && (args.size() == 1)) { - JSValue v = args.at(0); - return v.isString() - ? jsString(exec, asString(thisValue), asString(v)) - : jsString(exec, asString(thisValue), v.toString(exec)); - } - - return jsString(exec, thisValue, args); -} - -JSValue JSC_HOST_CALL stringProtoFuncIndexOf(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - int len = s.size(); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - UString u2 = a0.toString(exec); - int pos; - if (a1.isUndefined()) - pos = 0; - else if (a1.isUInt32()) - pos = min<uint32_t>(a1.asUInt32(), len); - else { - double dpos = a1.toInteger(exec); - if (dpos < 0) - dpos = 0; - else if (dpos > len) - dpos = len; - pos = static_cast<int>(dpos); - } - - return jsNumber(exec, s.find(u2, pos)); -} - -JSValue JSC_HOST_CALL stringProtoFuncLastIndexOf(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - int len = s.size(); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - - UString u2 = a0.toString(exec); - double dpos = a1.toIntegerPreserveNaN(exec); - if (dpos < 0) - dpos = 0; - else if (!(dpos <= len)) // true for NaN - dpos = len; -#if OS(SYMBIAN) - // Work around for broken NaN compare operator - else if (isnan(dpos)) - dpos = len; -#endif - return jsNumber(exec, s.rfind(u2, static_cast<int>(dpos))); -} - -JSValue JSC_HOST_CALL stringProtoFuncMatch(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - - JSValue a0 = args.at(0); - - UString u = s; - RefPtr<RegExp> reg; - RegExpObject* imp = 0; - if (a0.inherits(&RegExpObject::info)) - reg = asRegExpObject(a0)->regExp(); - else { - /* - * ECMA 15.5.4.12 String.prototype.search (regexp) - * If regexp is not an object whose [[Class]] property is "RegExp", it is - * replaced with the result of the expression new RegExp(regexp). - */ - reg = RegExp::create(&exec->globalData(), a0.toString(exec)); - } - RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor(); - int pos; - int matchLength = 0; - regExpConstructor->performMatch(reg.get(), u, 0, pos, matchLength); - if (!(reg->global())) { - // case without 'g' flag is handled like RegExp.prototype.exec - if (pos < 0) - return jsNull(); - return regExpConstructor->arrayOfMatches(exec); - } - - // return array of matches - MarkedArgumentBuffer list; - int lastIndex = 0; - while (pos >= 0) { - list.append(jsSubstring(exec, u, pos, matchLength)); - lastIndex = pos; - pos += matchLength == 0 ? 1 : matchLength; - regExpConstructor->performMatch(reg.get(), u, pos, pos, matchLength); - } - if (imp) - imp->setLastIndex(lastIndex); - if (list.isEmpty()) { - // if there are no matches at all, it's important to return - // Null instead of an empty array, because this matches - // other browsers and because Null is a false value. - return jsNull(); - } - - return constructArray(exec, list); -} - -JSValue JSC_HOST_CALL stringProtoFuncSearch(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - - JSValue a0 = args.at(0); - - UString u = s; - RefPtr<RegExp> reg; - if (a0.inherits(&RegExpObject::info)) - reg = asRegExpObject(a0)->regExp(); - else { - /* - * ECMA 15.5.4.12 String.prototype.search (regexp) - * If regexp is not an object whose [[Class]] property is "RegExp", it is - * replaced with the result of the expression new RegExp(regexp). - */ - reg = RegExp::create(&exec->globalData(), a0.toString(exec)); - } - RegExpConstructor* regExpConstructor = exec->lexicalGlobalObject()->regExpConstructor(); - int pos; - int matchLength = 0; - regExpConstructor->performMatch(reg.get(), u, 0, pos, matchLength); - return jsNumber(exec, pos); -} - -JSValue JSC_HOST_CALL stringProtoFuncSlice(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - int len = s.size(); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - - // The arg processing is very much like ArrayProtoFunc::Slice - double start = a0.toInteger(exec); - double end = a1.isUndefined() ? len : a1.toInteger(exec); - double from = start < 0 ? len + start : start; - double to = end < 0 ? len + end : end; - if (to > from && to > 0 && from < len) { - if (from < 0) - from = 0; - if (to > len) - to = len; - return jsSubstring(exec, s, static_cast<unsigned>(from), static_cast<unsigned>(to) - static_cast<unsigned>(from)); - } - - return jsEmptyString(exec); -} - -JSValue JSC_HOST_CALL stringProtoFuncSplit(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - - JSArray* result = constructEmptyArray(exec); - unsigned i = 0; - int p0 = 0; - unsigned limit = a1.isUndefined() ? 0xFFFFFFFFU : a1.toUInt32(exec); - if (a0.inherits(&RegExpObject::info)) { - RegExp* reg = asRegExpObject(a0)->regExp(); - if (s.isEmpty() && reg->match(s, 0) >= 0) { - // empty string matched by regexp -> empty array - return result; - } - int pos = 0; - while (i != limit && pos < s.size()) { - Vector<int, 32> ovector; - int mpos = reg->match(s, pos, &ovector); - if (mpos < 0) - break; - int mlen = ovector[1] - ovector[0]; - pos = mpos + (mlen == 0 ? 1 : mlen); - if (mpos != p0 || mlen) { - result->put(exec, i++, jsSubstring(exec, s, p0, mpos - p0)); - p0 = mpos + mlen; - } - for (unsigned si = 1; si <= reg->numSubpatterns(); ++si) { - int spos = ovector[si * 2]; - if (spos < 0) - result->put(exec, i++, jsUndefined()); - else - result->put(exec, i++, jsSubstring(exec, s, spos, ovector[si * 2 + 1] - spos)); - } - } - } else { - UString u2 = a0.toString(exec); - if (u2.isEmpty()) { - if (s.isEmpty()) { - // empty separator matches empty string -> empty array - return result; - } - while (i != limit && p0 < s.size() - 1) - result->put(exec, i++, jsSingleCharacterSubstring(exec, s, p0++)); - } else { - int pos; - while (i != limit && (pos = s.find(u2, p0)) >= 0) { - result->put(exec, i++, jsSubstring(exec, s, p0, pos - p0)); - p0 = pos + u2.size(); - } - } - } - - // add remaining string - if (i != limit) - result->put(exec, i++, jsSubstring(exec, s, p0, s.size() - p0)); - - return result; -} - -JSValue JSC_HOST_CALL stringProtoFuncSubstr(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - int len = s.size(); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - - double start = a0.toInteger(exec); - double length = a1.isUndefined() ? len : a1.toInteger(exec); - if (start >= len || length <= 0) - return jsEmptyString(exec); - if (start < 0) { - start += len; - if (start < 0) - start = 0; - } - if (start + length > len) - length = len - start; - return jsSubstring(exec, s, static_cast<unsigned>(start), static_cast<unsigned>(length)); -} - -JSValue JSC_HOST_CALL stringProtoFuncSubstring(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - int len = s.size(); - - JSValue a0 = args.at(0); - JSValue a1 = args.at(1); - - double start = a0.toNumber(exec); - double end = a1.toNumber(exec); - if (isnan(start)) - start = 0; - if (isnan(end)) - end = 0; - if (start < 0) - start = 0; - if (end < 0) - end = 0; - if (start > len) - start = len; - if (end > len) - end = len; - if (a1.isUndefined()) - end = len; - if (start > end) { - double temp = end; - end = start; - start = temp; - } - return jsSubstring(exec, s, static_cast<unsigned>(start), static_cast<unsigned>(end) - static_cast<unsigned>(start)); -} - -JSValue JSC_HOST_CALL stringProtoFuncToLowerCase(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - JSString* sVal = thisValue.toThisJSString(exec); - const UString& s = sVal->value(exec); - - int sSize = s.size(); - if (!sSize) - return sVal; - - const UChar* sData = s.data(); - Vector<UChar> buffer(sSize); - - UChar ored = 0; - for (int i = 0; i < sSize; i++) { - UChar c = sData[i]; - ored |= c; - buffer[i] = toASCIILower(c); - } - if (!(ored & ~0x7f)) - return jsString(exec, UString::adopt(buffer)); - - bool error; - int length = Unicode::toLower(buffer.data(), sSize, sData, sSize, &error); - if (error) { - buffer.resize(length); - length = Unicode::toLower(buffer.data(), length, sData, sSize, &error); - if (error) - return sVal; - } - if (length == sSize) { - if (memcmp(buffer.data(), sData, length * sizeof(UChar)) == 0) - return sVal; - } else - buffer.resize(length); - return jsString(exec, UString::adopt(buffer)); -} - -JSValue JSC_HOST_CALL stringProtoFuncToUpperCase(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - JSString* sVal = thisValue.toThisJSString(exec); - const UString& s = sVal->value(exec); - - int sSize = s.size(); - if (!sSize) - return sVal; - - const UChar* sData = s.data(); - Vector<UChar> buffer(sSize); - - UChar ored = 0; - for (int i = 0; i < sSize; i++) { - UChar c = sData[i]; - ored |= c; - buffer[i] = toASCIIUpper(c); - } - if (!(ored & ~0x7f)) - return jsString(exec, UString::adopt(buffer)); - - bool error; - int length = Unicode::toUpper(buffer.data(), sSize, sData, sSize, &error); - if (error) { - buffer.resize(length); - length = Unicode::toUpper(buffer.data(), length, sData, sSize, &error); - if (error) - return sVal; - } - if (length == sSize) { - if (memcmp(buffer.data(), sData, length * sizeof(UChar)) == 0) - return sVal; - } else - buffer.resize(length); - return jsString(exec, UString::adopt(buffer)); -} - -JSValue JSC_HOST_CALL stringProtoFuncLocaleCompare(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - if (args.size() < 1) - return jsNumber(exec, 0); - - UString s = thisValue.toThisString(exec); - JSValue a0 = args.at(0); - return jsNumber(exec, localeCompare(s, a0.toString(exec))); -} - -JSValue JSC_HOST_CALL stringProtoFuncBig(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<big>", s, "</big>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncSmall(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<small>", s, "</small>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncBlink(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<blink>", s, "</blink>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncBold(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<b>", s, "</b>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncFixed(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsString(exec, makeString("<tt>", s, "</tt>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncItalics(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<i>", s, "</i>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncStrike(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<strike>", s, "</strike>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncSub(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<sub>", s, "</sub>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncSup(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - UString s = thisValue.toThisString(exec); - return jsNontrivialString(exec, makeString("<sup>", s, "</sup>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncFontcolor(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - JSValue a0 = args.at(0); - return jsNontrivialString(exec, makeString("<font color=\"", a0.toString(exec), "\">", s, "</font>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncFontsize(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - JSValue a0 = args.at(0); - - uint32_t smallInteger; - if (a0.getUInt32(smallInteger) && smallInteger <= 9) { - unsigned stringSize = s.size(); - unsigned bufferSize = 22 + stringSize; - UChar* buffer; - PassRefPtr<UStringImpl> impl = UStringImpl::tryCreateUninitialized(bufferSize, buffer); - if (!impl) - return jsUndefined(); - buffer[0] = '<'; - buffer[1] = 'f'; - buffer[2] = 'o'; - buffer[3] = 'n'; - buffer[4] = 't'; - buffer[5] = ' '; - buffer[6] = 's'; - buffer[7] = 'i'; - buffer[8] = 'z'; - buffer[9] = 'e'; - buffer[10] = '='; - buffer[11] = '"'; - buffer[12] = '0' + smallInteger; - buffer[13] = '"'; - buffer[14] = '>'; - memcpy(&buffer[15], s.data(), stringSize * sizeof(UChar)); - buffer[15 + stringSize] = '<'; - buffer[16 + stringSize] = '/'; - buffer[17 + stringSize] = 'f'; - buffer[18 + stringSize] = 'o'; - buffer[19 + stringSize] = 'n'; - buffer[20 + stringSize] = 't'; - buffer[21 + stringSize] = '>'; - return jsNontrivialString(exec, impl); - } - - return jsNontrivialString(exec, makeString("<font size=\"", a0.toString(exec), "\">", s, "</font>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncAnchor(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - JSValue a0 = args.at(0); - return jsNontrivialString(exec, makeString("<a name=\"", a0.toString(exec), "\">", s, "</a>")); -} - -JSValue JSC_HOST_CALL stringProtoFuncLink(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args) -{ - UString s = thisValue.toThisString(exec); - JSValue a0 = args.at(0); - UString linkText = a0.toString(exec); - - unsigned linkTextSize = linkText.size(); - unsigned stringSize = s.size(); - unsigned bufferSize = 15 + linkTextSize + stringSize; - UChar* buffer; - PassRefPtr<UStringImpl> impl = UStringImpl::tryCreateUninitialized(bufferSize, buffer); - if (!impl) - return jsUndefined(); - buffer[0] = '<'; - buffer[1] = 'a'; - buffer[2] = ' '; - buffer[3] = 'h'; - buffer[4] = 'r'; - buffer[5] = 'e'; - buffer[6] = 'f'; - buffer[7] = '='; - buffer[8] = '"'; - memcpy(&buffer[9], linkText.data(), linkTextSize * sizeof(UChar)); - buffer[9 + linkTextSize] = '"'; - buffer[10 + linkTextSize] = '>'; - memcpy(&buffer[11 + linkTextSize], s.data(), stringSize * sizeof(UChar)); - buffer[11 + linkTextSize + stringSize] = '<'; - buffer[12 + linkTextSize + stringSize] = '/'; - buffer[13 + linkTextSize + stringSize] = 'a'; - buffer[14 + linkTextSize + stringSize] = '>'; - return jsNontrivialString(exec, impl); -} - -enum { - TrimLeft = 1, - TrimRight = 2 -}; - -static inline bool isTrimWhitespace(UChar c) -{ - return isStrWhiteSpace(c) || c == 0x200b; -} - -static inline JSValue trimString(ExecState* exec, JSValue thisValue, int trimKind) -{ - UString str = thisValue.toThisString(exec); - int left = 0; - if (trimKind & TrimLeft) { - while (left < str.size() && isTrimWhitespace(str[left])) - left++; - } - int right = str.size(); - if (trimKind & TrimRight) { - while (right > left && isTrimWhitespace(str[right - 1])) - right--; - } - - // Don't gc allocate a new string if we don't have to. - if (left == 0 && right == str.size() && thisValue.isString()) - return thisValue; - - return jsString(exec, str.substr(left, right - left)); -} - -JSValue JSC_HOST_CALL stringProtoFuncTrim(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - return trimString(exec, thisValue, TrimLeft | TrimRight); -} - -JSValue JSC_HOST_CALL stringProtoFuncTrimLeft(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - return trimString(exec, thisValue, TrimLeft); -} - -JSValue JSC_HOST_CALL stringProtoFuncTrimRight(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) -{ - return trimString(exec, thisValue, TrimRight); -} - - -} // namespace JSC |