1 #ifndef _UTFH_
2 #define _UTFH_ 1
3 #ifdef __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	= 0x80,		/* decoding error in UTF */
15 };
16 
17 /*
18  * rune routines
19  */
20 extern	int	runetochar(char*, Rune*);
21 extern	int	chartorune(Rune*, char*);
22 extern	int	runelen(long);
23 extern	int	runenlen(Rune*, int);
24 extern	int	fullrune(char*, int);
25 extern	int	utflen(char*);
26 extern	int	utfnlen(char*, long);
27 extern	char*	utfrune(char*, long);
28 extern	char*	utfrrune(char*, long);
29 extern	char*	utfutf(char*, char*);
30 extern	char*	utfecpy(char*, char*, char*);
31 
32 extern	Rune*	runestrcat(Rune*, Rune*);
33 extern	Rune*	runestrchr(Rune*, Rune);
34 extern	int	runestrcmp(Rune*, Rune*);
35 extern	Rune*	runestrcpy(Rune*, Rune*);
36 extern	Rune*	runestrncpy(Rune*, Rune*, long);
37 extern	Rune*	runestrecpy(Rune*, Rune*, Rune*);
38 extern	Rune*	runestrdup(Rune*);
39 extern	Rune*	runestrncat(Rune*, Rune*, long);
40 extern	int	runestrncmp(Rune*, Rune*, long);
41 extern	Rune*	runestrrchr(Rune*, Rune);
42 extern	long	runestrlen(Rune*);
43 extern	Rune*	runestrstr(Rune*, Rune*);
44 
45 extern	Rune	tolowerrune(Rune);
46 extern	Rune	totitlerune(Rune);
47 extern	Rune	toupperrune(Rune);
48 extern	int	isalpharune(Rune);
49 extern	int	islowerrune(Rune);
50 extern	int	isspacerune(Rune);
51 extern	int	istitlerune(Rune);
52 extern	int	isupperrune(Rune);
53 
54 #ifdef cplusplus
55 }
56 #endif
57 #endif