Imported WebKit commit 68645295d2e3e09af2c942f092556f06aa5f8b0d (http://svn.webkit.org/repository/webkit/trunk@128073)

New snapshot

1 files changed, 0 insertions, 475 deletions

diff --git a/Source/JavaScriptCore/runtime/UString.cpp b/Source/JavaScriptCore/runtime/UString.cpp
deleted file mode 100644
index 5b1e9a0e0..000000000
--- a/Source/JavaScriptCore/runtime/UString.cpp
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
- *  Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
- *  Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca)
- *  Copyright (C) 2009 Google Inc. All rights reserved.
- *
- *  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 "UString.h"
-
-#include "JSGlobalObjectFunctions.h"
-#include "Heap.h"
-#include "Identifier.h"
-#include "Operations.h"
-#include <ctype.h>
-#include <limits.h>
-#include <limits>
-#include <stdio.h>
-#include <stdlib.h>
-#include <wtf/ASCIICType.h>
-#include <wtf/Assertions.h>
-#include <wtf/MathExtras.h>
-#include <wtf/StringExtras.h>
-#include <wtf/Vector.h>
-#include <wtf/dtoa.h>
-#include <wtf/unicode/UTF8.h>
-
-#if HAVE(STRINGS_H)
-#include <strings.h>
-#endif
-
-using namespace WTF;
-using namespace WTF::Unicode;
-using namespace std;
-
-namespace JSC {
-
-COMPILE_ASSERT(sizeof(UString) == sizeof(void*), UString_should_stay_small);
-
-// Construct a string with UTF-16 data.
-UString::UString(const UChar* characters, unsigned length)
-    : m_impl(characters ? StringImpl::create(characters, length) : 0)
-{
-}
-
-// Construct a string with UTF-16 data, from a null-terminated source.
-UString::UString(const UChar* characters)
-{
-    if (!characters)
-        return;
-
-    int length = 0;
-    while (characters[length] != UChar(0))
-        ++length;
-
-    m_impl = StringImpl::create(characters, length);
-}
-
-// Construct a string with latin1 data.
-UString::UString(const LChar* characters, unsigned length)
-    : m_impl(characters ? StringImpl::create(characters, length) : 0)
-{
-}
-
-UString::UString(const char* characters, unsigned length)
-    : m_impl(characters ? StringImpl::create(reinterpret_cast<const LChar*>(characters), length) : 0)
-{
-}
-
-// Construct a string with latin1 data, from a null-terminated source.
-UString::UString(const LChar* characters)
-    : m_impl(characters ? StringImpl::create(characters) : 0)
-{
-}
-
-UString::UString(const char* characters)
-    : m_impl(characters ? StringImpl::create(reinterpret_cast<const LChar*>(characters)) : 0)
-{
-}
-
-UString UString::number(int i)
-{
-    LChar buf[1 + sizeof(i) * 3];
-    LChar* end = buf + WTF_ARRAY_LENGTH(buf);
-    LChar* p = end;
-
-    if (i == 0)
-        *--p = '0';
-    else if (i == INT_MIN) {
-        char minBuf[1 + sizeof(i) * 3];
-        snprintf(minBuf, sizeof(minBuf), "%d", INT_MIN);
-        return UString(minBuf);
-    } else {
-        bool negative = false;
-        if (i < 0) {
-            negative = true;
-            i = -i;
-        }
-        while (i) {
-            *--p = static_cast<unsigned short>((i % 10) + '0');
-            i /= 10;
-        }
-        if (negative)
-            *--p = '-';
-    }
-
-    return UString(p, static_cast<unsigned>(end - p));
-}
-
-UString UString::number(long long i)
-{
-    LChar buf[1 + sizeof(i) * 3];
-    LChar* end = buf + WTF_ARRAY_LENGTH(buf);
-    LChar* p = end;
-
-    if (i == 0)
-        *--p = '0';
-    else if (i == std::numeric_limits<long long>::min()) {
-        char minBuf[1 + sizeof(i) * 3];
-#if OS(WINDOWS)
-        snprintf(minBuf, sizeof(minBuf), "%I64d", std::numeric_limits<long long>::min());
-#else
-        snprintf(minBuf, sizeof(minBuf), "%lld", std::numeric_limits<long long>::min());
-#endif
-        return UString(minBuf);
-    } else {
-        bool negative = false;
-        if (i < 0) {
-            negative = true;
-            i = -i;
-        }
-        while (i) {
-            *--p = static_cast<unsigned short>((i % 10) + '0');
-            i /= 10;
-        }
-        if (negative)
-            *--p = '-';
-    }
-
-    return UString(p, static_cast<unsigned>(end - p));
-}
-
-UString UString::number(unsigned u)
-{
-    LChar buf[sizeof(u) * 3];
-    LChar* end = buf + WTF_ARRAY_LENGTH(buf);
-    LChar* p = end;
-
-    if (u == 0)
-        *--p = '0';
-    else {
-        while (u) {
-            *--p = static_cast<unsigned short>((u % 10) + '0');
-            u /= 10;
-        }
-    }
-
-    return UString(p, static_cast<unsigned>(end - p));
-}
-
-UString UString::number(long l)
-{
-    LChar buf[1 + sizeof(l) * 3];
-    LChar* end = buf + WTF_ARRAY_LENGTH(buf);
-    LChar* p = end;
-
-    if (l == 0)
-        *--p = '0';
-    else if (l == LONG_MIN) {
-        char minBuf[1 + sizeof(l) * 3];
-        snprintf(minBuf, sizeof(minBuf), "%ld", LONG_MIN);
-        return UString(minBuf);
-    } else {
-        bool negative = false;
-        if (l < 0) {
-            negative = true;
-            l = -l;
-        }
-        while (l) {
-            *--p = static_cast<unsigned short>((l % 10) + '0');
-            l /= 10;
-        }
-        if (negative)
-            *--p = '-';
-    }
-
-    return UString(p, end - p);
-}
-
-UString UString::number(double d)
-{
-    NumberToStringBuffer buffer;
-    return UString(numberToString(d, buffer));
-}
-
-UString UString::substringSharingImpl(unsigned offset, unsigned length) const
-{
-    // FIXME: We used to check against a limit of Heap::minExtraCost / sizeof(UChar).
-
-    unsigned stringLength = this->length();
-    offset = min(offset, stringLength);
-    length = min(length, stringLength - offset);
-
-    if (!offset && length == stringLength)
-        return *this;
-    return UString(StringImpl::create(m_impl, offset, length));
-}
-
-bool operator==(const UString& s1, const char *s2)
-{
-    if (s1.isEmpty())
-        return !s2;
-
-    return equal(s1.impl(), s2);
-}
-
-// This method assumes that all simple checks have been performed by
-// the inlined operator==() in the header file.
-bool equalSlowCase(const UString& s1, const UString& s2)
-{
-    StringImpl* rep1 = s1.impl();
-    StringImpl* rep2 = s2.impl();
-    unsigned size1 = rep1->length();
-
-    // At this point we know 
-    //   (a) that the strings are the same length and
-    //   (b) that they are greater than zero length.
-    bool s1Is8Bit = rep1->is8Bit();
-    bool s2Is8Bit = rep2->is8Bit();
-    
-    if (s1Is8Bit) {
-        const LChar* d1 = rep1->characters8();
-        if (s2Is8Bit) {
-            const LChar* d2 = rep2->characters8();
-            
-            if (d1 == d2) // Check to see if the data pointers are the same.
-                return true;
-            
-            // Do quick checks for sizes 1 and 2.
-            switch (size1) {
-            case 1:
-                return d1[0] == d2[0];
-            case 2:
-                return (d1[0] == d2[0]) & (d1[1] == d2[1]);
-            default:
-                return (!memcmp(d1, d2, size1 * sizeof(LChar)));
-            }
-        }
-        
-        const UChar* d2 = rep2->characters16();
-        
-        for (unsigned i = 0; i < size1; i++) {
-            if (d1[i] != d2[i])
-                return false;
-        }
-        return true;
-    }
-    
-    if (s2Is8Bit) {
-        const UChar* d1 = rep1->characters16();
-        const LChar* d2 = rep2->characters8();
-        
-        for (unsigned i = 0; i < size1; i++) {
-            if (d1[i] != d2[i])
-                return false;
-        }
-        return true;
-        
-    }
-    
-    const UChar* d1 = rep1->characters16();
-    const UChar* d2 = rep2->characters16();
-    
-    if (d1 == d2) // Check to see if the data pointers are the same.
-        return true;
-    
-    // Do quick checks for sizes 1 and 2.
-    switch (size1) {
-    case 1:
-        return d1[0] == d2[0];
-    case 2:
-        return (d1[0] == d2[0]) & (d1[1] == d2[1]);
-    default:
-        return (!memcmp(d1, d2, size1 * sizeof(UChar)));
-    }
-}
-
-bool operator<(const UString& s1, const UString& s2)
-{
-    const unsigned l1 = s1.length();
-    const unsigned l2 = s2.length();
-    const unsigned lmin = l1 < l2 ? l1 : l2;
-    if (s1.is8Bit() && s2.is8Bit()) {
-        const LChar* c1 = s1.characters8();
-        const LChar* c2 = s2.characters8();
-        unsigned length = 0;
-        while (length < lmin && *c1 == *c2) {
-            c1++;
-            c2++;
-            length++;
-        }
-        if (length < lmin)
-            return (c1[0] < c2[0]);
-
-        return (l1 < l2);        
-    }
-    const UChar* c1 = s1.characters();
-    const UChar* c2 = s2.characters();
-    unsigned length = 0;
-    while (length < lmin && *c1 == *c2) {
-        c1++;
-        c2++;
-        length++;
-    }
-    if (length < lmin)
-        return (c1[0] < c2[0]);
-
-    return (l1 < l2);
-}
-
-bool operator>(const UString& s1, const UString& s2)
-{
-    const unsigned l1 = s1.length();
-    const unsigned l2 = s2.length();
-    const unsigned lmin = l1 < l2 ? l1 : l2;
-    const UChar* c1 = s1.characters();
-    const UChar* c2 = s2.characters();
-    unsigned l = 0;
-    while (l < lmin && *c1 == *c2) {
-        c1++;
-        c2++;
-        l++;
-    }
-    if (l < lmin)
-        return (c1[0] > c2[0]);
-
-    return (l1 > l2);
-}
-
-CString UString::ascii() const
-{
-    // Basic Latin1 (ISO) encoding - Unicode characters 0..255 are
-    // preserved, characters outside of this range are converted to '?'.
-
-    unsigned length = this->length();
-
-    if (this->is8Bit()) {
-        const LChar* characters = this->characters8();
-        
-        char* characterBuffer;
-        CString result = CString::newUninitialized(length, characterBuffer);
-        
-        for (unsigned i = 0; i < length; ++i) {
-            LChar ch = characters[i];
-            characterBuffer[i] = ch && (ch < 0x20 || ch > 0x7f) ? '?' : ch;
-        }
-        
-        return result;        
-    }
-
-    const UChar* characters = this->characters16();
-
-    char* characterBuffer;
-    CString result = CString::newUninitialized(length, characterBuffer);
-
-    for (unsigned i = 0; i < length; ++i) {
-        UChar ch = characters[i];
-        characterBuffer[i] = ch && (ch < 0x20 || ch >= 0x7f) ? '?' : ch;
-    }
-
-    return result;
-}
-
-CString UString::latin1() const
-{
-    // Basic Latin1 (ISO) encoding - Unicode characters 0..255 are
-    // preserved, characters outside of this range are converted to '?'.
-
-    unsigned length = this->length();
-    const UChar* characters = this->characters();
-
-    char* characterBuffer;
-    CString result = CString::newUninitialized(length, characterBuffer);
-
-    for (unsigned i = 0; i < length; ++i) {
-        UChar ch = characters[i];
-        characterBuffer[i] = ch > 0xff ? '?' : ch;
-    }
-
-    return result;
-}
-
-// Helper to write a three-byte UTF-8 code point to the buffer, caller must check room is available.
-static inline void putUTF8Triple(char*& buffer, UChar ch)
-{
-    ASSERT(ch >= 0x0800);
-    *buffer++ = static_cast<char>(((ch >> 12) & 0x0F) | 0xE0);
-    *buffer++ = static_cast<char>(((ch >> 6) & 0x3F) | 0x80);
-    *buffer++ = static_cast<char>((ch & 0x3F) | 0x80);
-}
-
-CString UString::utf8(bool strict) const
-{
-    unsigned length = this->length();
-
-    if (!length)
-        return CString("", 0);
-
-    // Allocate a buffer big enough to hold all the characters
-    // (an individual UTF-16 UChar can only expand to 3 UTF-8 bytes).
-    // Optimization ideas, if we find this function is hot:
-    //  * We could speculatively create a CStringBuffer to contain 'length' 
-    //    characters, and resize if necessary (i.e. if the buffer contains
-    //    non-ascii characters). (Alternatively, scan the buffer first for
-    //    ascii characters, so we know this will be sufficient).
-    //  * We could allocate a CStringBuffer with an appropriate size to
-    //    have a good chance of being able to write the string into the
-    //    buffer without reallocing (say, 1.5 x length).
-    if (length > numeric_limits<unsigned>::max() / 3)
-        return CString();
-
-    Vector<char, 1024> bufferVector(length * 3);
-    char* buffer = bufferVector.data();
-
-    if (is8Bit()) {
-        const LChar* characters = this->characters8();
-
-        ConversionResult result = convertLatin1ToUTF8(&characters, characters + length, &buffer, buffer + bufferVector.size());
-        ASSERT_UNUSED(result, result != targetExhausted); // (length * 3) should be sufficient for any conversion
-    } else {
-        const UChar* characters = this->characters16();
-
-        ConversionResult result = convertUTF16ToUTF8(&characters, characters + length, &buffer, buffer + bufferVector.size(), strict);
-        ASSERT(result != targetExhausted); // (length * 3) should be sufficient for any conversion
-
-        // Only produced from strict conversion.
-        if (result == sourceIllegal)
-            return CString();
-
-        // Check for an unconverted high surrogate.
-        if (result == sourceExhausted) {
-            if (strict)
-                return CString();
-            // This should be one unpaired high surrogate. Treat it the same
-            // was as an unpaired high surrogate would have been handled in
-            // the middle of a string with non-strict conversion - which is
-            // to say, simply encode it to UTF-8.
-            ASSERT((characters + 1) == (this->characters() + length));
-            ASSERT((*characters >= 0xD800) && (*characters <= 0xDBFF));
-            // There should be room left, since one UChar hasn't been converted.
-            ASSERT((buffer + 3) <= (buffer + bufferVector.size()));
-            putUTF8Triple(buffer, *characters);
-        }
-    }
-
-    return CString(bufferVector.data(), buffer - bufferVector.data());
-}
-
-} // namespace JSC