blob: 25d6deeb1067f950ae9955c5979d13cba4f73608 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#pragma once
typedef uint32 rune;
#define UTFmax 4
#define RuneErr 0xFFFDu
#define RuneMax 0x10FFFFu
#define utf8·onebyte(c) (((c)&0x80u)==0x00u)
#define utf8·twobyte(c) (((c)&0xE0u)==0xC0u)
#define utf8·threebyte(c) (((c)&0xF0u)==0xE0u)
#define utf8·fourbyte(c) (((c)&0xF8u)==0xF0u)
/*
* UTF-8 functions.
*/
int utf8·len(char *s); // returns number of runes for s
int utf8·runelen(rune r); // returns number of bytes for rune
int utf8·runewidth(rune r); // returns number of printed columns for rune
int utf8·decode(char *, rune *); // decode 1 rune from char stream, store into rune, return number of bytes
int utf8·encode(rune *, char *); // encode 1 rune from rune stream, store into char, return number of bytes
int utf8·decodeprev(char *s, rune *r); // decode 1 rune from char stream, reading backwards, store into rune, return number of bytes
char *utf8·find(char *s, rune); // find rune in char stream
char *utf8·findlast(char* s, rune); // find last rune in char stream
int utf8·canfit(char *, int); // XXX: odd function...
int utf8·isalpha(rune r);
int utf8·isdigit(rune r);
int utf8·isspace(rune r);
int utf8·istitle(rune r);
int utf8·ispunct(rune r);
rune utf8·toupper(rune r);
rune utf8·tolower(rune r);
rune utf8·totitle(rune r);
|
