diff options
Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp')
-rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp | 440 |
1 files changed, 0 insertions, 440 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp deleted file mode 100644 index be114d7..0000000 --- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp +++ /dev/null @@ -1,440 +0,0 @@ -/* - * Copyright (C) 1999-2002 Harri Porten (porten@kde.org) - * Copyright (C) 2001 Peter Kelly (pmk@post.com) - * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. - * Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca) - * Copyright (C) 2007 Maks Orlovich - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#include "config.h" -#include "JSGlobalObjectFunctions.h" - -#include "CallFrame.h" -#include "GlobalEvalFunction.h" -#include "Interpreter.h" -#include "JSGlobalObject.h" -#include "JSString.h" -#include "JSStringBuilder.h" -#include "Lexer.h" -#include "LiteralParser.h" -#include "Nodes.h" -#include "Parser.h" -#include "StringBuilder.h" -#include "StringExtras.h" -#include "dtoa.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <wtf/ASCIICType.h> -#include <wtf/Assertions.h> -#include <wtf/MathExtras.h> -#include <wtf/unicode/UTF8.h> - -using namespace WTF; -using namespace Unicode; - -namespace JSC { - -static JSValue encode(ExecState* exec, const ArgList& args, const char* doNotEscape) -{ - UString str = args.at(0).toString(exec); - CString cstr = str.UTF8String(true); - if (!cstr.c_str()) - return throwError(exec, URIError, "String contained an illegal UTF-16 sequence."); - - JSStringBuilder builder; - const char* p = cstr.c_str(); - for (size_t k = 0; k < cstr.size(); k++, p++) { - char c = *p; - if (c && strchr(doNotEscape, c)) - builder.append(c); - else { - char tmp[4]; - snprintf(tmp, 4, "%%%02X", static_cast<unsigned char>(c)); - builder.append(tmp); - } - } - return builder.build(exec); -} - -static JSValue decode(ExecState* exec, const ArgList& args, const char* doNotUnescape, bool strict) -{ - JSStringBuilder builder; - UString str = args.at(0).toString(exec); - int k = 0; - int len = str.size(); - const UChar* d = str.data(); - UChar u = 0; - while (k < len) { - const UChar* p = d + k; - UChar c = *p; - if (c == '%') { - int charLen = 0; - if (k <= len - 3 && isASCIIHexDigit(p[1]) && isASCIIHexDigit(p[2])) { - const char b0 = Lexer::convertHex(p[1], p[2]); - const int sequenceLen = UTF8SequenceLength(b0); - if (sequenceLen != 0 && k <= len - sequenceLen * 3) { - charLen = sequenceLen * 3; - char sequence[5]; - sequence[0] = b0; - for (int i = 1; i < sequenceLen; ++i) { - const UChar* q = p + i * 3; - if (q[0] == '%' && isASCIIHexDigit(q[1]) && isASCIIHexDigit(q[2])) - sequence[i] = Lexer::convertHex(q[1], q[2]); - else { - charLen = 0; - break; - } - } - if (charLen != 0) { - sequence[sequenceLen] = 0; - const int character = decodeUTF8Sequence(sequence); - if (character < 0 || character >= 0x110000) - charLen = 0; - else if (character >= 0x10000) { - // Convert to surrogate pair. - builder.append(static_cast<UChar>(0xD800 | ((character - 0x10000) >> 10))); - u = static_cast<UChar>(0xDC00 | ((character - 0x10000) & 0x3FF)); - } else - u = static_cast<UChar>(character); - } - } - } - if (charLen == 0) { - if (strict) - return throwError(exec, URIError); - // The only case where we don't use "strict" mode is the "unescape" function. - // For that, it's good to support the wonky "%u" syntax for compatibility with WinIE. - if (k <= len - 6 && p[1] == 'u' - && isASCIIHexDigit(p[2]) && isASCIIHexDigit(p[3]) - && isASCIIHexDigit(p[4]) && isASCIIHexDigit(p[5])) { - charLen = 6; - u = Lexer::convertUnicode(p[2], p[3], p[4], p[5]); - } - } - if (charLen && (u == 0 || u >= 128 || !strchr(doNotUnescape, u))) { - c = u; - k += charLen - 1; - } - } - k++; - builder.append(c); - } - return builder.build(exec); -} - -bool isStrWhiteSpace(UChar c) -{ - switch (c) { - case 0x0009: - case 0x000A: - case 0x000B: - case 0x000C: - case 0x000D: - case 0x0020: - case 0x00A0: - case 0x2028: - case 0x2029: - return true; - default: - return c > 0xff && isSeparatorSpace(c); - } -} - -static int parseDigit(unsigned short c, int radix) -{ - int digit = -1; - - if (c >= '0' && c <= '9') - digit = c - '0'; - else if (c >= 'A' && c <= 'Z') - digit = c - 'A' + 10; - else if (c >= 'a' && c <= 'z') - digit = c - 'a' + 10; - - if (digit >= radix) - return -1; - return digit; -} - -double parseIntOverflow(const char* s, int length, int radix) -{ - double number = 0.0; - double radixMultiplier = 1.0; - - for (const char* p = s + length - 1; p >= s; p--) { - if (radixMultiplier == Inf) { - if (*p != '0') { - number = Inf; - break; - } - } else { - int digit = parseDigit(*p, radix); - number += digit * radixMultiplier; - } - - radixMultiplier *= radix; - } - - return number; -} - -static double parseInt(const UString& s, int radix) -{ - int length = s.size(); - const UChar* data = s.data(); - int p = 0; - - while (p < length && isStrWhiteSpace(data[p])) - ++p; - - double sign = 1; - if (p < length) { - if (data[p] == '+') - ++p; - else if (data[p] == '-') { - sign = -1; - ++p; - } - } - - if ((radix == 0 || radix == 16) && length - p >= 2 && data[p] == '0' && (data[p + 1] == 'x' || data[p + 1] == 'X')) { - radix = 16; - p += 2; - } else if (radix == 0) { - if (p < length && data[p] == '0') - radix = 8; - else - radix = 10; - } - - if (radix < 2 || radix > 36) - return NaN; - - int firstDigitPosition = p; - bool sawDigit = false; - double number = 0; - while (p < length) { - int digit = parseDigit(data[p], radix); - if (digit == -1) - break; - sawDigit = true; - number *= radix; - number += digit; - ++p; - } - - if (number >= mantissaOverflowLowerBound) { - if (radix == 10) - number = WTF::strtod(s.substr(firstDigitPosition, p - firstDigitPosition).ascii(), 0); - else if (radix == 2 || radix == 4 || radix == 8 || radix == 16 || radix == 32) - number = parseIntOverflow(s.substr(firstDigitPosition, p - firstDigitPosition).ascii(), p - firstDigitPosition, radix); - } - - if (!sawDigit) - return NaN; - - return sign * number; -} - -static double parseFloat(const UString& s) -{ - // Check for 0x prefix here, because toDouble allows it, but we must treat it as 0. - // Need to skip any whitespace and then one + or - sign. - int length = s.size(); - const UChar* data = s.data(); - int p = 0; - while (p < length && isStrWhiteSpace(data[p])) - ++p; - - if (p < length && (data[p] == '+' || data[p] == '-')) - ++p; - - if (length - p >= 2 && data[p] == '0' && (data[p + 1] == 'x' || data[p + 1] == 'X')) - return 0; - - return s.toDouble(true /*tolerant*/, false /* NaN for empty string */); -} - -JSValue JSC_HOST_CALL globalFuncEval(ExecState* exec, JSObject* function, JSValue thisValue, const ArgList& args) -{ - JSObject* thisObject = thisValue.toThisObject(exec); - JSObject* unwrappedObject = thisObject->unwrappedObject(); - if (!unwrappedObject->isGlobalObject() || static_cast<JSGlobalObject*>(unwrappedObject)->evalFunction() != function) - return throwError(exec, EvalError, "The \"this\" value passed to eval must be the global object from which eval originated"); - - JSValue x = args.at(0); - if (!x.isString()) - return x; - - UString s = x.toString(exec); - - LiteralParser preparser(exec, s, LiteralParser::NonStrictJSON); - if (JSValue parsedObject = preparser.tryLiteralParse()) - return parsedObject; - - RefPtr<EvalExecutable> eval = EvalExecutable::create(exec, makeSource(s)); - JSObject* error = eval->compile(exec, static_cast<JSGlobalObject*>(unwrappedObject)->globalScopeChain().node()); - if (error) - return throwError(exec, error); - - return exec->interpreter()->execute(eval.get(), exec, thisObject, static_cast<JSGlobalObject*>(unwrappedObject)->globalScopeChain().node(), exec->exceptionSlot()); -} - -JSValue JSC_HOST_CALL globalFuncParseInt(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - JSValue value = args.at(0); - int32_t radix = args.at(1).toInt32(exec); - - if (radix != 0 && radix != 10) - return jsNumber(exec, parseInt(value.toString(exec), radix)); - - if (value.isInt32()) - return value; - - if (value.isDouble()) { - double d = value.asDouble(); - if (isfinite(d)) - return jsNumber(exec, (d > 0) ? floor(d) : ceil(d)); - if (isnan(d) || isinf(d)) - return jsNaN(exec); - return jsNumber(exec, 0); - } - - return jsNumber(exec, parseInt(value.toString(exec), radix)); -} - -JSValue JSC_HOST_CALL globalFuncParseFloat(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - return jsNumber(exec, parseFloat(args.at(0).toString(exec))); -} - -JSValue JSC_HOST_CALL globalFuncIsNaN(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - return jsBoolean(isnan(args.at(0).toNumber(exec))); -} - -JSValue JSC_HOST_CALL globalFuncIsFinite(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - double n = args.at(0).toNumber(exec); - return jsBoolean(!isnan(n) && !isinf(n)); -} - -JSValue JSC_HOST_CALL globalFuncDecodeURI(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - static const char do_not_unescape_when_decoding_URI[] = - "#$&+,/:;=?@"; - - return decode(exec, args, do_not_unescape_when_decoding_URI, true); -} - -JSValue JSC_HOST_CALL globalFuncDecodeURIComponent(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - return decode(exec, args, "", true); -} - -JSValue JSC_HOST_CALL globalFuncEncodeURI(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - static const char do_not_escape_when_encoding_URI[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789" - "!#$&'()*+,-./:;=?@_~"; - - return encode(exec, args, do_not_escape_when_encoding_URI); -} - -JSValue JSC_HOST_CALL globalFuncEncodeURIComponent(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - static const char do_not_escape_when_encoding_URI_component[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789" - "!'()*-._~"; - - return encode(exec, args, do_not_escape_when_encoding_URI_component); -} - -JSValue JSC_HOST_CALL globalFuncEscape(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - static const char do_not_escape[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789" - "*+-./@_"; - - JSStringBuilder builder; - UString str = args.at(0).toString(exec); - const UChar* c = str.data(); - for (unsigned k = 0; k < str.size(); k++, c++) { - int u = c[0]; - if (u > 255) { - char tmp[7]; - sprintf(tmp, "%%u%04X", u); - builder.append(tmp); - } else if (u != 0 && strchr(do_not_escape, static_cast<char>(u))) - builder.append(c, 1); - else { - char tmp[4]; - sprintf(tmp, "%%%02X", u); - builder.append(tmp); - } - } - - return builder.build(exec); -} - -JSValue JSC_HOST_CALL globalFuncUnescape(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - StringBuilder builder; - UString str = args.at(0).toString(exec); - int k = 0; - int len = str.size(); - while (k < len) { - const UChar* c = str.data() + k; - UChar u; - if (c[0] == '%' && k <= len - 6 && c[1] == 'u') { - if (isASCIIHexDigit(c[2]) && isASCIIHexDigit(c[3]) && isASCIIHexDigit(c[4]) && isASCIIHexDigit(c[5])) { - u = Lexer::convertUnicode(c[2], c[3], c[4], c[5]); - c = &u; - k += 5; - } - } else if (c[0] == '%' && k <= len - 3 && isASCIIHexDigit(c[1]) && isASCIIHexDigit(c[2])) { - u = UChar(Lexer::convertHex(c[1], c[2])); - c = &u; - k += 2; - } - k++; - builder.append(*c); - } - - return jsString(exec, builder.build()); -} - -#ifndef NDEBUG -JSValue JSC_HOST_CALL globalFuncJSCPrint(ExecState* exec, JSObject*, JSValue, const ArgList& args) -{ - CStringBuffer string; - args.at(0).toString(exec).getCString(string); - puts(string.data()); - return jsUndefined(); -} -#endif - -} // namespace JSC |