source/texk/web2c/luatexdir/utils/unistring.h

   1 /* unistring.h
   2
   3    Copyright 2013 Taco Hoekwater <taco@luatex.org>
   4
   5    This file is part of LuaTeX.
   6
   7    LuaTeX is free software; you can redistribute it and/or modify it under
   8    the terms of the GNU General Public License as published by the Free
   9    Software Foundation; either version 2 of the License, or (at your
  10    option) any later version.
  11
  12    LuaTeX is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License along
  18    with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
  19
  20
  21 #ifndef UNISTRING_H
  22 #  define UNISTRING_H
  23
  24 extern unsigned char *uni2str(unsigned);
  25 extern unsigned str2uni(const unsigned char *);
  26 extern int buffer_to_unichar(int k);
  27
  28 extern char *uni2string(char *utf8_text, unsigned ch);
  29 extern unsigned u_length(register unsigned int *str);
  30 extern void utf2uni_strcpy(unsigned int *ubuf, const char *utf8buf);
  31
  32 #define is_utf8_follow(A) (A >= 0x80 && A < 0xC0)
  33
  34 #define utf8_size(a) (a>0xFFFF ? 4 : (a>0x7FF ? 3 : (a>0x7F? 2 : 1)))
  35
  36 extern char *utf16be_str(long code);
  37
  38 #endif
  39