+/*
+Copyright (C) 2009-2020 DarkPlaces contributors
+
+This program 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.
+
+This program 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 this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+
/*
* UTF-8 utility functions for DarkPlaces
*/
#ifndef UTF8LIB_H__
#define UTF8LIB_H__
+#include <stddef.h>
#include "qtypes.h"
// types for unicode strings
// a non-utf8 version to work: u8_strlen() will wrap to strlen()
// u8_byteofs() and u8_charidx() will simply return whatever is passed as index parameter
// u8_getchar() will will just return the next byte, u8_fromchar will write one byte, ...
-extern cvar_t utf8_enable;
+extern struct cvar_s utf8_enable;
void u8_Init(void);
size_t u8_strlen(const char*);
Uchar u8_toupper(Uchar ch);
Uchar u8_tolower(Uchar ch);
+#ifdef WIN32
+
+// WTF-8 encoding to circumvent Windows encodings, be it UTF-16 or random codepages
+// https://simonsapin.github.io/wtf-8/
+#define WTF8U32 0 // whether to regard wchar as utf-32
+#define WTF8CHECKS 1 // check for extra sanity in conversion steps
+typedef wchar_t wchar;
+
+int towtf8(const wchar* wstr, int wlen, char* cstr, int maxclen);
+int fromwtf8(const char* cstr, int clen, wchar* wstr, int maxwlen);
+
+#endif // WIN32
+
#endif // UTF8LIB_H__