mh_argp.c
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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, 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. */
/* Coexistence between GNU long options, traditional UNIX-style short
options and traditional MH long options. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <mh_getopt.h>
#include <string.h>
struct mh_argp_data
{
struct mh_option *mh_option;
int (*handler)();
void *closure;
};
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
struct mh_argp_data *data = state->input;
switch (key)
{
case ARGP_KEY_INIT:
while ((key = mh_getopt (state->argc, state->argv, data->mh_option))
!= EOF
&& key != '?')
{
data->handler (key, mh_optarg, data->closure);
}
state->next = mh_optind;
break;
case ARGP_KEY_ARG:
if (arg[0] == '+')
{
data->handler ('f', arg+1, data->closure);
break;
}
return ARGP_ERR_UNKNOWN;
default:
if (data->handler (key, arg, data->closure) == 0)
break;
return ARGP_ERR_UNKNOWN;
}
return 0;
}
int
mh_argp_parse (int argc, char **argv,
struct argp_option *option,
struct mh_option *mh_option,
char *argp_doc, char *doc,
int (*handler)(), void *closure)
{
struct argp argp;
struct mh_argp_data data;
char *p;
program_invocation_name = argv[0];
p = strrchr (argv[0], '/');
if (p)
program_invocation_short_name = p+1;
else
program_invocation_short_name = program_invocation_name;
memset (&argp, 0, sizeof (argp));
argp.options = option;
argp.parser = parse_opt;
argp.args_doc = argp_doc;
argp.doc = doc;
data.mh_option = mh_option;
data.closure = closure;
data.handler = handler;
return argp_parse (&argp, argc, argv, 0, 0, &data);
}
void
mh_license (const char *name)
{
static char license_text[] =
" This program is free software; you can redistribute it and/or modify\n"
" it under the terms of the GNU General Public License as published by\n"
" the Free Software Foundation; either version 2, or (at your option)\n"
" any later version.\n"
"\n"
" This program is distributed in the hope that it will be useful,\n"
" but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
" GNU General Public License for more details.\n"
"\n"
" You should have received a copy of the GNU General Public License\n"
" along with this program; if not, write to the Free Software\n"
" Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n";
printf ("This is %s\n%s", name, license_text);
exit (0);
}