| NingSun | 0c89b3c | 2018-02-08 08:34:03 -0800 | [diff] [blame^] | 1 | /* This code was taken from http://www.fourmilab.ch/random/ where it states that: |
| 2 | |
| 3 | This software is in the public domain. Permission to use, copy, modify, and distribute |
| 4 | this software and its documentation for any purpose and without fee is hereby granted, |
| 5 | without any conditions or restrictions. This software is provided “as is” without |
| 6 | express or implied warranty. */ |
| 7 | |
| 8 | /* ISO 8859/1 Latin-1 "ctype" macro replacements. */ |
| 9 | |
| 10 | extern unsigned char isoalpha[32], isoupper[32], isolower[32]; |
| 11 | |
| 12 | #define isISOspace(x) ((isascii(((unsigned char) (x))) && isspace(((unsigned char) (x)))) || ((x) == 0xA0)) |
| 13 | #define isISOalpha(x) ((isoalpha[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0) |
| 14 | #define isISOupper(x) ((isoupper[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0) |
| 15 | #define isISOlower(x) ((isolower[(((unsigned char) (x))) / 8] & (0x80 >> ((((unsigned char) (x))) % 8))) != 0) |
| 16 | #define isISOprint(x) ((((x) >= ' ') && ((x) <= '~')) || ((x) >= 0xA0)) |
| 17 | #define toISOupper(x) (isISOlower(x) ? (isascii(((unsigned char) (x))) ? \ |
| 18 | toupper(x) : (((((unsigned char) (x)) != 0xDF) && \ |
| 19 | (((unsigned char) (x)) != 0xFF)) ? \ |
| 20 | (((unsigned char) (x)) - 0x20) : (x))) : (x)) |
| 21 | #define toISOlower(x) (isISOupper(x) ? (isascii(((unsigned char) (x))) ? \ |
| 22 | tolower(x) : (((unsigned char) (x)) + 0x20)) \ |
| 23 | : (x)) |