source: trunk/kernel/libk/ctype.c

Last change on this file was 457, checked in by alain, 3 years ago

This version modifies the exec syscall and fixes a large number of small bugs.
The version number has been updated (0.1)

File size: 1.2 KB
Line 
1/*
2 * ctype.c - characters related helper functions
3 *
4 * Author    Ghasssan Almaless (2008,2009,2010,2011,2012)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include <hal_kernel_types.h>
25
26////////////////////
27int isprint( int c )
28{
29        return (127 - ' ') > (uint8_t)(c - ' ') ? 1 : 0;
30}
31
32////////////////////
33int isalpha( int c )
34{
35        return ((uint8_t)((c | 0x20) - 'a')) < 26 ? 1 : 0;
36}
37
38////////////////////
39int isspace( int c )
40{
41        return ((c == ' ') || (c - 9) < 5);
42}
43
44////////////////////
45int toupper( int c )
46{
47        return isalpha(c) ? c & ~0x20 : c;
48}
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