1 #ifndef _UTF_H_
2 #define _UTF_H_ 1
3 #if defined(__cplusplus)
4 extern "C" { 
5 #endif
6 
7 typedef unsigned short Rune;	/* 16 bits */
8 
9 enum
10 {
11 	UTFmax		= 3,		/* maximum bytes per rune */
12 	Runesync	= 0x80,		/* cannot represent part of a UTF sequence (<) */
13 	Runeself	= 0x80,		/* rune and UTF sequences are the same (<) */
14 	Runeerror	= 0xFFFD,		/* decoding error in UTF */
15 };
16 
17 /* Edit .+1,/^$/ | cfn $PLAN9/src/lib9/utf/?*.c | grep -v static |grep -v __ */
18 int		chartorune(Rune *rune, char *str);
19 int		fullrune(char *str, int n);
20 int		isalpharune(Rune c);
21 int		islowerrune(Rune c);
22 int		isspacerune(Rune c);
23 int		istitlerune(Rune c);
24 int		isupperrune(Rune c);
25 int		runelen(long c);
26 int		runenlen(Rune *r, int nrune);
27 Rune*		runestrcat(Rune *s1, Rune *s2);
28 Rune*		runestrchr(Rune *s, Rune c);
29 int		runestrcmp(Rune *s1, Rune *s2);
30 Rune*		runestrcpy(Rune *s1, Rune *s2);
31 Rune*		runestrdup(Rune *s) ;
32 Rune*		runestrecpy(Rune *s1, Rune *es1, Rune *s2);
33 long		runestrlen(Rune *s);
34 Rune*		runestrncat(Rune *s1, Rune *s2, long n);
35 int		runestrncmp(Rune *s1, Rune *s2, long n);
36 Rune*		runestrncpy(Rune *s1, Rune *s2, long n);
37 Rune*		runestrrchr(Rune *s, Rune c);
38 Rune*		runestrstr(Rune *s1, Rune *s2);
39 int		runetochar(char *str, Rune *rune);
40 Rune		tolowerrune(Rune c);
41 Rune		totitlerune(Rune c);
42 Rune		toupperrune(Rune c);
43 char*		utfecpy(char *to, char *e, char *from);
44 int		utflen(char *s);
45 int		utfnlen(char *s, long m);
46 char*		utfrrune(char *s, long c);
47 char*		utfrune(char *s, long c);
48 char*		utfutf(char *s1, char *s2);
49 
50 #if defined(__cplusplus)
51 }
52 #endif
53 #endif