print.c
2.84 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011-2012, 2014-2017 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdlib.h>
#include <mailutils/types.h>
#include <mailutils/errno.h>
#include <mailutils/list.h>
#include <mailutils/stream.h>
#include <mailutils/io.h>
#include <mailutils/msgset.h>
#include <mailutils/sys/msgset.h>
struct mu_msgset_format const mu_msgset_formats[] = {
[MU_MSGSET_FMT_IMAP] = {
.delim = ",",
.range = ":",
.last = "*",
.empty = "NIL"
},
[MU_MSGSET_FMT_MH] = {
.delim = " ",
.range = "-",
.last = "last"
}
};
struct print_env
{
mu_stream_t stream;
int cont;
struct mu_msgset_format const *fmt;
};
static int
_msgrange_printer (void *item, void *data)
{
int rc;
struct mu_msgrange *range = item;
struct print_env *env = data;
if (env->cont)
{
rc = mu_stream_printf (env->stream, "%s", env->fmt->delim);
if (rc)
return rc;
}
else
env->cont = 1;
if (range->msg_beg == range->msg_end)
rc = mu_stream_printf (env->stream, "%lu", (unsigned long) range->msg_beg);
else if (range->msg_end == 0)
rc = mu_stream_printf (env->stream, "%lu%s%s",
(unsigned long) range->msg_beg,
env->fmt->range,
env->fmt->last);
else if (range->msg_end == range->msg_beg + 1)
rc = mu_stream_printf (env->stream, "%lu%s%lu",
(unsigned long) range->msg_beg,
env->fmt->delim,
(unsigned long) range->msg_end);
else
rc = mu_stream_printf (env->stream, "%lu%s%lu",
(unsigned long) range->msg_beg,
env->fmt->range,
(unsigned long) range->msg_end);
return rc;
}
int
mu_stream_msgset_format (mu_stream_t str, struct mu_msgset_format const *fmt,
mu_msgset_t mset)
{
struct print_env env;
int rc;
env.stream = str;
env.cont = 0;
env.fmt = fmt;
if (mu_list_is_empty (mset->list))
{
if (env.fmt->empty)
return mu_stream_printf (str, "%s", env.fmt->empty);
return 0;
}
rc = mu_msgset_aggregate (mset);
if (rc)
return rc;
return mu_list_foreach (mset->list, _msgrange_printer, &env);
}
int
mu_msgset_print (mu_stream_t str, mu_msgset_t mset)
{
return mu_stream_msgset_format (str, mu_msgset_fmt_imap, mset);
}