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/*
* UTF-8 Utilities
* Copyright
* (C) 2004 Joseph H. Allen
*
* This file is part of JOE (Joe's Own Editor)
*/
#ifndef _Iutf8
#define _Iutf8 1
/* UTF-8 Encoder
*
* c is unicode character.
* buf is 7 byte buffer- utf-8 coded character is written to this followed by a 0 termination.
* returns length (not including terminator).
*/
int utf8_encode PARAMS((unsigned char *buf,int c));
/* UTF-8 decoder state machine */
struct utf8_sm {
unsigned char buf[8]; /* Record of sequence */
int ptr; /* Record pointer */
int state; /* Current state. 0 = idle, anything else is no. of chars left in sequence */
int accu; /* Character accumulator */
};
/* UTF-8 Decoder
*
* Returns 0 - 7FFFFFFF: decoded character
* -1: character accepted, nothing decoded yet.
* -2: incomplete sequence
* -3: no sequence started, but character is between 128 - 191, 254 or 255
*/
int utf8_decode PARAMS((struct utf8_sm *utf8_sm,unsigned char c));
int utf8_decode_string PARAMS((unsigned char *s));
int utf8_decode_fwrd PARAMS((unsigned char **p,int *plen));
/* Initialize state machine */
void utf8_init PARAMS((struct utf8_sm *utf8_sm));
void joe_locale();
void to_utf8 PARAMS((struct charmap *map,unsigned char *s,int c));
int from_utf8 PARAMS((struct charmap *map,unsigned char *s));
int unictrl PARAMS((int ucs));
int mk_wcwidth PARAMS((int wide,int c));
extern struct charmap *locale_map; /* Default bytemap of terminal */
extern unsigned char *locale_lang; /* Locale language (like de_DE) */
extern unsigned char *locale_msgs; /* Locale language for editor messages (like de_DE) */
void my_iconv PARAMS((unsigned char *dest,struct charmap *dest_map,
unsigned char *src,struct charmap *src_map));
struct charmap *guess_map PARAMS((unsigned char *buf, int len));
extern int guess_non_utf8;
extern int guess_utf8;
#endif
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