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/**
* @file rule.c item matching rules used by search folders
*
* Copyright (C) 2003-2010 Lars Lindner <lars.lindner@gmail.com>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "rule.h"
#include <string.h>
#include "common.h"
#include "debug.h"
#define ITEM_MATCH_RULE_ID "exact"
#define ITEM_TITLE_MATCH_RULE_ID "exact_title"
#define ITEM_DESC_MATCH_RULE_ID "exact_desc"
/** list of available search folder rules */
static GSList *ruleFunctions = NULL;
static void rule_init (void);
GSList *
rule_get_available_rules (void)
{
if (!ruleFunctions)
rule_init ();
return ruleFunctions;
}
/* rule creation */
rulePtr
rule_new (const gchar *ruleId,
const gchar *value,
gboolean additive)
{
GSList *iter;
iter = rule_get_available_rules ();
while (iter) {
ruleInfoPtr ruleInfo = (ruleInfoPtr)iter->data;
if (0 == strcmp (ruleInfo->ruleId, ruleId)) {
rulePtr rule = (rulePtr) g_new0 (struct rule, 1);
rule->ruleInfo = ruleInfo;
rule->additive = additive;
rule->value = common_strreplace (g_strdup (value), "'", "");
return rule;
}
iter = g_slist_next (iter);
}
return NULL;
}
void
rule_free (rulePtr rule)
{
g_free (rule->value);
g_free (rule);
}
/* rule conditions */
static gboolean
rule_check_item_title (rulePtr rule, itemPtr item)
{
return (NULL != g_strstr_len (item->title, -1, rule->value));
}
static gboolean
rule_check_item_description (rulePtr rule, itemPtr item)
{
return (NULL != g_strstr_len (item->description, -1, rule->value));
}
static gboolean
rule_check_item_all (rulePtr rule, itemPtr item)
{
return rule_check_item_title (rule, item) || rule_check_item_description (rule, item);
}
static gboolean
rule_check_item_is_unread (rulePtr rule, itemPtr item)
{
return (0 == item->readStatus);
}
static gboolean
rule_check_item_is_flagged (rulePtr rule, itemPtr item)
{
return (1 == item->flagStatus);
}
static gboolean
rule_check_item_has_enc (rulePtr rule, itemPtr item)
{
return FALSE; // FIXME
}
static gboolean
rule_check_item_category (rulePtr rule, itemPtr item)
{
return FALSE; // FIXME
}
/* rule initialization */
static void
rule_info_add (ruleCheckFunc checkFunc,
const gchar *ruleId,
gchar *title,
gchar *positive,
gchar *negative,
gboolean needsParameter)
{
ruleInfoPtr ruleInfo;
ruleInfo = (ruleInfoPtr) g_new0 (struct ruleInfo, 1);
ruleInfo->ruleId = ruleId;
ruleInfo->title = title;
ruleInfo->positive = positive;
ruleInfo->negative = negative;
ruleInfo->needsParameter = needsParameter;
ruleInfo->checkFunc = checkFunc;
ruleFunctions = g_slist_append (ruleFunctions, ruleInfo);
}
static void
rule_init (void)
{
debug_enter ("rule_init");
/* SQL condition builder function in-memory check function feedlist.opml rule id rule menu label positive menu option negative menu option has param */
/* ========================================================================================================================================================================================*/
rule_info_add (rule_check_item_all, ITEM_MATCH_RULE_ID, _("Item"), _("does contain"), _("does not contain"), TRUE);
rule_info_add (rule_check_item_title, ITEM_TITLE_MATCH_RULE_ID, _("Item title"), _("does contain"), _("does not contain"), TRUE);
rule_info_add (rule_check_item_description, ITEM_DESC_MATCH_RULE_ID, _("Item body"), _("does contain"), _("does not contain"), TRUE);
rule_info_add (rule_check_item_is_unread, "unread", _("Read status"), _("is unread"), _("is read"), FALSE);
rule_info_add (rule_check_item_is_flagged, "flagged", _("Flag status"), _("is flagged"), _("is unflagged"), FALSE);
rule_info_add (rule_check_item_has_enc, "enclosure", _("Podcast"), _("included"), _("not included"), FALSE);
rule_info_add (rule_check_item_category, "category", _("Category"), _("is set"), _("is not set"), TRUE);
debug_exit ("rule_init");
}
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