9d4a4a9edb
git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@461 f5eea248-9336-0410-98b8-ebc06183d4e3
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
// Scintilla source code edit control
|
|
// Converter.h - Encapsulation of iconv
|
|
// Copyright 2004 by Neil Hodgson <neilh@scintilla.org>
|
|
// The License.txt file describes the conditions under which this software may be distributed.
|
|
|
|
#include <iconv.h>
|
|
#if GTK_MAJOR_VERSION >= 2
|
|
typedef GIConv ConverterHandle;
|
|
#else
|
|
typedef iconv_t ConverterHandle;
|
|
#endif
|
|
const ConverterHandle iconvhBad = (ConverterHandle)(-1);
|
|
// Since various versions of iconv can not agree on whether the src argument
|
|
// is char ** or const char ** provide a templatised adaptor.
|
|
template<typename T>
|
|
size_t iconv_adaptor(size_t(*f_iconv)(ConverterHandle, T, size_t *, char **, size_t *),
|
|
ConverterHandle cd, char** src, size_t *srcleft,
|
|
char **dst, size_t *dstleft) {
|
|
return f_iconv(cd, (T)src, srcleft, dst, dstleft);
|
|
}
|
|
/**
|
|
* Encapsulate iconv safely and avoid iconv_adaptor complexity in client code.
|
|
*/
|
|
class Converter {
|
|
ConverterHandle iconvh;
|
|
void OpenHandle(const char *fullDestination, const char *charSetSource) {
|
|
#if GTK_MAJOR_VERSION >= 2
|
|
iconvh = g_iconv_open(fullDestination, charSetSource);
|
|
#else
|
|
iconvh = iconv_open(fullDestination, charSetSource);
|
|
#endif
|
|
}
|
|
bool Succeeded() const {
|
|
return iconvh != iconvhBad;
|
|
}
|
|
public:
|
|
Converter() {
|
|
iconvh = iconvhBad;
|
|
}
|
|
Converter(const char *charSetDestination, const char *charSetSource, bool transliterations) {
|
|
iconvh = iconvhBad;
|
|
Open(charSetDestination, charSetSource, transliterations);
|
|
}
|
|
~Converter() {
|
|
Close();
|
|
}
|
|
operator bool() const {
|
|
return Succeeded();
|
|
}
|
|
void Open(const char *charSetDestination, const char *charSetSource, bool transliterations=true) {
|
|
Close();
|
|
if (*charSetSource) {
|
|
// Try allowing approximate transliterations
|
|
if (transliterations) {
|
|
char fullDest[200];
|
|
strcpy(fullDest, charSetDestination);
|
|
strcat(fullDest, "//TRANSLIT");
|
|
OpenHandle(fullDest, charSetSource);
|
|
}
|
|
if (!Succeeded()) {
|
|
// Transliterations failed so try basic name
|
|
OpenHandle(charSetDestination, charSetSource);
|
|
}
|
|
}
|
|
}
|
|
void Close() {
|
|
if (Succeeded()) {
|
|
#if GTK_MAJOR_VERSION >= 2
|
|
g_iconv_close(iconvh);
|
|
#else
|
|
iconv_close(iconvh);
|
|
#endif
|
|
iconvh = iconvhBad;
|
|
}
|
|
}
|
|
size_t Convert(char** src, size_t *srcleft, char **dst, size_t *dstleft) const {
|
|
if (!Succeeded()) {
|
|
return (size_t)(-1);
|
|
} else {
|
|
#if GTK_MAJOR_VERSION >= 2
|
|
return iconv_adaptor(g_iconv, iconvh, src, srcleft, dst, dstleft);
|
|
#else
|
|
return iconv_adaptor(iconv, iconvh, src, srcleft, dst, dstleft);
|
|
#endif
|
|
}
|
|
}
|
|
};
|