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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2009-02-19 14:18:25 -0300
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2009-02-19 14:18:25 -0300
commitada82930fd9f81b7da96ea11faec9f5b79df3bca (patch)
tree4184507888b0c7a36f21f419e5331bdfe6e5425b /lctype.h
parentf36e3196585d0658f103954b6d3a188d1bdac9d7 (diff)
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"homemade" version of ctype.h
Diffstat (limited to 'lctype.h')
-rw-r--r--lctype.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/lctype.h b/lctype.h
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1/*
2** $Id: $
3** 'ctype' functions for Lua
4** See Copyright Notice in lua.h
5*/
6
7#ifndef lctype_h
8#define lctype_h
9
10
11#include <limits.h>
12
13#include "lua.h"
14
15
16#define ALPHABIT 0
17#define DIGITBIT 1
18#define PRINTBIT 2
19#define SPACEBIT 3
20
21
22#define MASK(B) (1 << (B))
23
24
25#define lisalpha(x) (lctypecode[x] & MASK(ALPHABIT))
26#define lisalnum(x) (lctypecode[x] & (MASK(ALPHABIT) | MASK(DIGITBIT)))
27#define lisdigit(x) (lctypecode[x] & MASK(DIGITBIT))
28#define lisspace(x) (lctypecode[x] & MASK(SPACEBIT))
29#define lisprint(x) (lctypecode[x] & MASK(PRINTBIT))
30
31LUAI_DATA const char lctypecode[UCHAR_MAX + 1];
32
33#endif
34