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/*
convenient routines for argument list handling
Copyright (C) Andrew Tridgell 2002
This program 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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ccache.h"
ARGS *args_init(int init_argc, char **init_args)
{
ARGS *args;
int i;
args = (ARGS *)x_malloc(sizeof(ARGS));
args->argc = 0;
args->argv = (char **)x_malloc(sizeof(char *));
args->argv[0] = NULL;
for (i=0;i<init_argc;i++) {
args_add(args, init_args[i]);
}
return args;
}
void args_add(ARGS *args, const char *s)
{
args->argv = (char**)x_realloc(args->argv, (args->argc + 2) * sizeof(char *));
args->argv[args->argc] = x_strdup(s);
args->argc++;
args->argv[args->argc] = NULL;
}
/* pop the last element off the args list */
void args_pop(ARGS *args, int n)
{
while (n--) {
args->argc--;
free(args->argv[args->argc]);
args->argv[args->argc] = NULL;
}
}
/* remove the first element of the argument list */
void args_remove_first(ARGS *args)
{
free(args->argv[0]);
memmove(&args->argv[0],
&args->argv[1],
args->argc * sizeof(args->argv[0]));
args->argc--;
}
/* add an argument into the front of the argument list */
void args_add_prefix(ARGS *args, const char *s)
{
args->argv = (char**)x_realloc(args->argv, (args->argc + 2) * sizeof(char *));
memmove(&args->argv[1], &args->argv[0],
(args->argc+1) * sizeof(args->argv[0]));
args->argv[0] = x_strdup(s);
args->argc++;
}
/* strip any arguments beginning with the specified prefix */
void args_strip(ARGS *args, const char *prefix)
{
int i;
for (i=0; i<args->argc; ) {
if (strncmp(args->argv[i], prefix, strlen(prefix)) == 0) {
free(args->argv[i]);
memmove(&args->argv[i],
&args->argv[i+1],
args->argc * sizeof(args->argv[i]));
args->argc--;
} else {
i++;
}
}
}
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