0ad/source/ps/StringConvert.cpp
Ykkrosh c9fa7f13d9 Add GPL header
This was SVN commit r6830.
2009-04-18 17:00:33 +00:00

84 lines
2.3 KiB
C++

/* Copyright (C) 2009 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "StringConvert.h"
#include "lib/external_libraries/sdl.h"
#include "scripting/SpiderMonkey.h"
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
#define ucs2le_to_wchart(ptr) (wchar_t)( (u16) ((u8*)ptr)[0] | (u16) ( ((u8*)ptr)[1] << 8) )
#else
#define ucs2le_to_wchart(ptr) (wchar_t)(*ptr);
#endif
JSString* StringConvert::wchars_to_jsstring(JSContext* cx, const wchar_t* chars, size_t len)
{
if (len == 0)
return JSVAL_TO_STRING(JS_GetEmptyStringValue(cx));
jschar* data = (jschar*)JS_malloc(cx, len*sizeof(jschar));
if (!data)
return NULL;
// Copy the string data, doing wchar_t->jschar conversion (since they're not equal in GCC)
for (size_t i=0; i<len; ++i)
data[i] = chars[i];
return JS_NewUCString(cx, data, len);
}
JSString* StringConvert::wchars_to_jsstring(JSContext* cx, const wchar_t* chars)
{
return wchars_to_jsstring(cx, chars, wcslen(chars));
}
JSString* StringConvert::wstring_to_jsstring(JSContext* cx, const std::wstring& str)
{
return wchars_to_jsstring(cx, str.data(), str.length());
}
void StringConvert::jsstring_to_wstring(JSString* str, std::wstring& result)
{
jschars_to_wstring(JS_GetStringChars(str), JS_GetStringLength(str), result);
}
void StringConvert::jschars_to_wstring(const jschar* chars, size_t len, std::wstring& result)
{
debug_assert(result.empty());
result.resize(len);
for (size_t i = 0; i < len; ++i)
result[i] = chars[i];
}
void StringConvert::ucs2le_to_wstring(const char* start, const char* end, std::wstring& result)
{
debug_assert(result.empty());
result.resize((end-start)/2);
size_t i = 0;
for (const char* pos = start; pos < end; pos += 2)
result[i++] = ucs2le_to_wchart(pos);
}