mh_sequence.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2003, 2005, 2007 Free Software Foundation, Inc.
GNU Mailutils 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, or (at your option)
any later version.
GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA */
#include <mh.h>
static char *
private_sequence_name (const char *name)
{
char *p;
char *mbox_dir = mh_expand_name (NULL, mh_current_folder (), 0);
asprintf (&p, "atr-%s-%s", name, mbox_dir);
free (mbox_dir);
return p;
}
const char *
mh_seq_read (const char *name, int flags)
{
const char *value;
if (flags & SEQ_PRIVATE)
{
char *p = private_sequence_name (name);
value = mh_global_context_get (p, NULL);
free (p);
}
else
value = mh_global_sequences_get (name, NULL);
return value;
}
static void
write_sequence (const char *name, char *value, int private)
{
if (private)
{
char *p = private_sequence_name (name);
mh_global_context_set (p, value);
free (p);
}
else
mh_global_sequences_set (name, value);
}
static void
delete_sequence (const char *name, int private)
{
write_sequence (name, NULL, private);
}
void
mh_seq_add (const char *name, mh_msgset_t *mset, int flags)
{
const char *value = mh_seq_read (name, flags);
char *new_value, *p;
const char *buf;
size_t i, len;
delete_sequence (name, !(flags & SEQ_PRIVATE));
if (flags & SEQ_ZERO)
value = NULL;
if (value)
len = strlen (value);
else
len = 0;
len++;
for (i = 0; i < mset->count; i++)
{
buf = mu_umaxtostr (0, mset->list[i]);
len += strlen (buf) + 1;
}
new_value = xmalloc (len + 1);
if (value)
strcpy (new_value, value);
else
new_value[0] = 0;
p = new_value + strlen (new_value);
*p++ = ' ';
for (i = 0; i < mset->count; i++)
{
p += sprintf (p, "%s", mu_umaxtostr (0, mset->list[i]));
*p++ = ' ';
}
*p = 0;
write_sequence (name, new_value, flags & SEQ_PRIVATE);
if (strcasecmp (name, "cur") == 0)
current_message = strtoul (new_value, NULL, 0);
free (new_value);
}
static int
cmp_msgnum (const void *a, const void *b)
{
const size_t *as = a;
const size_t *bs = b;
if (*as < *bs)
return -1;
if (*as > *bs)
return 1;
return 0;
}
int
mh_seq_delete (const char *name, mh_msgset_t *mset, int flags)
{
const char *value = mh_seq_read (name, flags);
char *new_val;
char *p;
int argc, i, count;
char **argv;
if (!value)
return 0;
if (mu_argcv_get (value, "", NULL, &argc, &argv))
return 0;
for (i = 0; i < argc; i++)
{
char *p;
size_t num = strtoul (argv[i], &p, 10);
if (*p)
continue;
if (bsearch (&num, mset->list, mset->count, sizeof (mset->list[0]),
cmp_msgnum))
{
free (argv[i]);
argv[i] = NULL;
}
}
new_val = xstrdup (value);
p = new_val;
count = 0;
for (i = 0; i < argc; i++)
{
if (argv[i])
{
strcpy (p, argv[i]);
p += strlen (p);
*p++ = ' ';
count++;
}
}
*p = 0;
write_sequence (name, count > 0 ? new_val : NULL, flags & SEQ_PRIVATE);
mu_argcv_free (argc, argv);
free (new_val);
return 0;
}