/* | |
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "JSStringRef.h" | |
#include "InitializeThreading.h" | |
#include "OpaqueJSString.h" | |
#include <wtf/unicode/UTF8.h> | |
using namespace JSC; | |
using namespace WTF::Unicode; | |
JSStringRef JSStringCreateWithCharacters(const JSChar* chars, size_t numChars) | |
{ | |
initializeThreading(); | |
return OpaqueJSString::create(chars, numChars).releaseRef(); | |
} | |
JSStringRef JSStringCreateWithUTF8CString(const char* string) | |
{ | |
initializeThreading(); | |
if (string) { | |
size_t length = strlen(string); | |
Vector<UChar, 1024> buffer(length); | |
UChar* p = buffer.data(); | |
if (conversionOK == convertUTF8ToUTF16(&string, string + length, &p, p + length)) | |
return OpaqueJSString::create(buffer.data(), p - buffer.data()).releaseRef(); | |
} | |
// Null string. | |
return OpaqueJSString::create().releaseRef(); | |
} | |
JSStringRef JSStringRetain(JSStringRef string) | |
{ | |
string->ref(); | |
return string; | |
} | |
void JSStringRelease(JSStringRef string) | |
{ | |
string->deref(); | |
} | |
size_t JSStringGetLength(JSStringRef string) | |
{ | |
return string->length(); | |
} | |
const JSChar* JSStringGetCharactersPtr(JSStringRef string) | |
{ | |
return string->characters(); | |
} | |
size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string) | |
{ | |
// Any UTF8 character > 3 bytes encodes as a UTF16 surrogate pair. | |
return string->length() * 3 + 1; // + 1 for terminating '\0' | |
} | |
size_t JSStringGetUTF8CString(JSStringRef string, char* buffer, size_t bufferSize) | |
{ | |
if (!bufferSize) | |
return 0; | |
char* p = buffer; | |
const UChar* d = string->characters(); | |
ConversionResult result = convertUTF16ToUTF8(&d, d + string->length(), &p, p + bufferSize - 1, true); | |
*p++ = '\0'; | |
if (result != conversionOK && result != targetExhausted) | |
return 0; | |
return p - buffer; | |
} | |
bool JSStringIsEqual(JSStringRef a, JSStringRef b) | |
{ | |
unsigned len = a->length(); | |
return len == b->length() && 0 == memcmp(a->characters(), b->characters(), len * sizeof(UChar)); | |
} | |
bool JSStringIsEqualToUTF8CString(JSStringRef a, const char* b) | |
{ | |
JSStringRef bBuf = JSStringCreateWithUTF8CString(b); | |
bool result = JSStringIsEqual(a, bBuf); | |
JSStringRelease(bBuf); | |
return result; | |
} |