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diff lwlib/lw_string.c @ 326:2eb058346cad
Added string module and expanded stringlist module
author | lost |
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date | Sat, 13 Feb 2010 05:21:20 +0000 |
parents | |
children | c15cca3ae6a2 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lwlib/lw_string.c Sat Feb 13 05:21:20 2010 +0000 @@ -0,0 +1,70 @@ +/* +lw_string.c + +Copyright © 2010 William Astle + +This file is part of LWTOOLS. + +LWTOOLS is free software: you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation, either version 3 of the License, or (at your option) any later +version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <string.h> +#include <stdlib.h> + +#define ___lw_string_c_seen___ +#include "lw_alloc.h" +#include "lw_string.h" + +char *lw_strdup(const char *s) +{ + char *r; + + if (!s) + s = "(null)"; + + r = lw_alloc(strlen(s) + 1); + strcpy(r, s); + return r; +} + +char *lw_token(const char *s, int sep, const char **ap) +{ + const char *p; + char *r; + + if (!s) + return NULL; + + p = strchr(s, sep); + if (!p) + { + if (ap) + *ap = NULL; + return lw_strdup(s); + } + + r = lw_alloc(p - s + 1); + strncpy(r, (char *)s, p - s); + r[p - s] = '\0'; + + if (ap) + { + while (*p && *p == sep) + p++; + *ap = p; + } + return r; +}