blob: db233b878f8005734af8f82b6a30c46063a5cc26 (
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
|
/*
** $Id: lctype.h,v 1.3 2009/03/10 17:42:33 roberto Exp roberto $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/
#ifndef lctype_h
#define lctype_h
#include <limits.h>
#include "lua.h"
#define ALPHABIT 0
#define DIGITBIT 1
#define PRINTBIT 2
#define SPACEBIT 3
#define XDIGITBIT 4
#define MASK(B) (1 << (B))
/* 'lalpha' (Lua alphabetic) includes '_' */
#define lislalpha(x) (luai_ctype_[x] & MASK(ALPHABIT))
/* ditto */
#define lislalnum(x) (luai_ctype_[x] & (MASK(ALPHABIT) | MASK(DIGITBIT)))
#define lisdigit(x) (luai_ctype_[x] & MASK(DIGITBIT))
#define lisspace(x) (luai_ctype_[x] & MASK(SPACEBIT))
#define lisprint(x) (luai_ctype_[x] & MASK(PRINTBIT))
#define lisxdigit(x) (luai_ctype_[x] & MASK(XDIGITBIT))
LUAI_DATA const char luai_ctype_[UCHAR_MAX + 1];
#endif
|
