You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.5 KiB
87 lines
2.5 KiB
// 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 |
|
} |
|
} |
|
};
|
|
|