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git.zerfleddert.de Git - proxmark3-svn/blob - liblua/lctype.h
2 ** $Id: lctype.h,v 1.12 2011/07/15 12:50:29 roberto Exp $
3 ** 'ctype' functions for Lua
4 ** See Copyright Notice in lua.h
14 ** WARNING: the functions defined here do not necessarily correspond
15 ** to the similar functions in the standard C ctype.h. They are
16 ** optimized for the specific needs of Lua
19 #if !defined(LUA_USE_CTYPE)
21 #if 'A' == 65 && '0' == 48
22 /* ASCII case: can use its own tables; faster and fixed */
23 #define LUA_USE_CTYPE 0
25 /* must use standard C ctype */
26 #define LUA_USE_CTYPE 1
32 #if !LUA_USE_CTYPE /* { */
46 #define MASK(B) (1 << (B))
50 ** add 1 to char to allow index -1 (EOZ)
52 #define testprop(c,p) (luai_ctype_[(c)+1] & (p))
55 ** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_'
57 #define lislalpha(c) testprop(c, MASK(ALPHABIT))
58 #define lislalnum(c) testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT)))
59 #define lisdigit(c) testprop(c, MASK(DIGITBIT))
60 #define lisspace(c) testprop(c, MASK(SPACEBIT))
61 #define lisprint(c) testprop(c, MASK(PRINTBIT))
62 #define lisxdigit(c) testprop(c, MASK(XDIGITBIT))
65 ** this 'ltolower' only works for alphabetic characters
67 #define ltolower(c) ((c) | ('A' ^ 'a'))
70 /* two more entries for 0 and -1 (EOZ) */
71 LUAI_DDEC
const lu_byte luai_ctype_
[UCHAR_MAX
+ 2];
77 ** use standard C ctypes
83 #define lislalpha(c) (isalpha(c) || (c) == '_')
84 #define lislalnum(c) (isalnum(c) || (c) == '_')
85 #define lisdigit(c) (isdigit(c))
86 #define lisspace(c) (isspace(c))
87 #define lisprint(c) (isprint(c))
88 #define lisxdigit(c) (isxdigit(c))
90 #define ltolower(c) (tolower(c))