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/*
* Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "mutt.h"
#include "sort.h"
#include <string.h>
#include <stdlib.h>
typedef struct score_t
{
char *str;
pattern_t *pat;
int val;
int exact; /* if this rule matches, don't evaluate any more */
struct score_t *next;
} SCORE;
SCORE *Score = NULL;
void mutt_check_rescore (CONTEXT *ctx)
{
int i;
if (option (OPTNEEDRESCORE) && option (OPTSCORE))
{
if ((Sort & SORT_MASK) == SORT_SCORE ||
(SortAux & SORT_MASK) == SORT_SCORE)
{
set_option (OPTNEEDRESORT);
if ((Sort & SORT_MASK) == SORT_THREADS)
set_option (OPTSORTSUBTHREADS);
}
/* must redraw the index since the user might have %N in it */
set_option (OPTFORCEREDRAWINDEX);
set_option (OPTFORCEREDRAWPAGER);
for (i = 0; ctx && i < ctx->msgcount; i++)
{
mutt_score_message (ctx, ctx->hdrs[i], 1);
ctx->hdrs[i]->pair = 0;
}
}
unset_option (OPTNEEDRESCORE);
}
int mutt_parse_score (BUFFER *buf, BUFFER *s, unsigned long data, BUFFER *err)
{
SCORE *ptr, *last;
char *pattern, *pc;
struct pattern_t *pat;
mutt_extract_token (buf, s, 0);
if (!MoreArgs (s))
{
strfcpy (err->data, _("score: too few arguments"), err->dsize);
return (-1);
}
pattern = buf->data;
memset (buf, 0, sizeof (BUFFER));
mutt_extract_token (buf, s, 0);
if (MoreArgs (s))
{
FREE (&pattern);
strfcpy (err->data, _("score: too many arguments"), err->dsize);
return (-1);
}
/* look for an existing entry and update the value, else add it to the end
of the list */
for (ptr = Score, last = NULL; ptr; last = ptr, ptr = ptr->next)
if (mutt_strcmp (pattern, ptr->str) == 0)
break;
if (!ptr)
{
if ((pat = mutt_pattern_comp (pattern, 0, err)) == NULL)
{
FREE (&pattern);
return (-1);
}
ptr = safe_calloc (1, sizeof (SCORE));
if (last)
last->next = ptr;
else
Score = ptr;
ptr->pat = pat;
ptr->str = pattern;
} else
/* 'buf' arg was cleared and 'pattern' holds the only reference;
* as here 'ptr' != NULL -> update the value only in which case
* ptr->str already has the string, so pattern should be freed.
*/
FREE (&pattern);
pc = buf->data;
if (*pc == '=')
{
ptr->exact = 1;
pc++;
}
ptr->val = atoi (pc);
set_option (OPTNEEDRESCORE);
return 0;
}
void mutt_score_message (CONTEXT *ctx, HEADER *hdr, int upd_ctx)
{
SCORE *tmp;
hdr->score = 0; /* in case of re-scoring */
for (tmp = Score; tmp; tmp = tmp->next)
{
if (mutt_pattern_exec (tmp->pat, 0, NULL, hdr) > 0)
{
if (tmp->exact || tmp->val == 9999 || tmp->val == -9999)
{
hdr->score = tmp->val;
break;
}
hdr->score += tmp->val;
}
}
if (hdr->score < 0)
hdr->score = 0;
if (hdr->score <= ScoreThresholdDelete)
_mutt_set_flag (ctx, hdr, M_DELETE, 1, upd_ctx);
if (hdr->score <= ScoreThresholdRead)
_mutt_set_flag (ctx, hdr, M_READ, 1, upd_ctx);
if (hdr->score >= ScoreThresholdFlag)
_mutt_set_flag (ctx, hdr, M_FLAG, 1, upd_ctx);
}
int mutt_parse_unscore (BUFFER *buf, BUFFER *s, unsigned long data, BUFFER *err)
{
SCORE *tmp, *last = NULL;
while (MoreArgs (s))
{
mutt_extract_token (buf, s, 0);
if (!mutt_strcmp ("*", buf->data))
{
for (tmp = Score; tmp; )
{
last = tmp;
tmp = tmp->next;
mutt_pattern_free (&last->pat);
FREE (&last);
}
Score = NULL;
}
else
{
for (tmp = Score; tmp; last = tmp, tmp = tmp->next)
{
if (!mutt_strcmp (buf->data, tmp->str))
{
if (last)
last->next = tmp->next;
else
Score = tmp->next;
mutt_pattern_free (&tmp->pat);
FREE (&tmp);
/* there should only be one score per pattern, so we can stop here */
break;
}
}
}
}
set_option (OPTNEEDRESCORE);
return 0;
}
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