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comparison lwlib/lw_string.c @ 326:2eb058346cad

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Added string module and expanded stringlist module
author lost
date Sat, 13 Feb 2010 05:21:20 +0000
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children c15cca3ae6a2
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325:619fd6ad4ab9 326:2eb058346cad
1 /*
2 lw_string.c
3
4 Copyright © 2010 William Astle
5
6 This file is part of LWTOOLS.
7
8 LWTOOLS is free software: you can redistribute it and/or modify it under the
9 terms of the GNU General Public License as published by the Free Software
10 Foundation, either version 3 of the License, or (at your option) any later
11 version.
12
13 This program is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 more details.
17
18 You should have received a copy of the GNU General Public License along with
19 this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include <config.h>
23
24 #include <string.h>
25 #include <stdlib.h>
26
27 #define ___lw_string_c_seen___
28 #include "lw_alloc.h"
29 #include "lw_string.h"
30
31 char *lw_strdup(const char *s)
32 {
33 char *r;
34
35 if (!s)
36 s = "(null)";
37
38 r = lw_alloc(strlen(s) + 1);
39 strcpy(r, s);
40 return r;
41 }
42
43 char *lw_token(const char *s, int sep, const char **ap)
44 {
45 const char *p;
46 char *r;
47
48 if (!s)
49 return NULL;
50
51 p = strchr(s, sep);
52 if (!p)
53 {
54 if (ap)
55 *ap = NULL;
56 return lw_strdup(s);
57 }
58
59 r = lw_alloc(p - s + 1);
60 strncpy(r, (char *)s, p - s);
61 r[p - s] = '\0';
62
63 if (ap)
64 {
65 while (*p && *p == sep)
66 p++;
67 *ap = p;
68 }
69 return r;
70 }