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/* filter_expressions.c
* Submitted by Edwin Groothuis <wireshark@mavetju.org>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <epan/prefs.h>
#include "epan/filter_expressions.h"
static struct filter_expression *_filter_expression_head = NULL;
struct filter_expression **pfilter_expression_head = &_filter_expression_head;
/*
* Create a new filter_expression and add it to the end of the list
* of filter_expressions.
*/
struct filter_expression *
filter_expression_new(const gchar *label, const gchar *expr,
const gboolean enabled)
{
struct filter_expression *expression;
struct filter_expression *prev;
expression = (struct filter_expression *)g_malloc(sizeof(struct filter_expression));
memset(expression, '\0', sizeof(struct filter_expression));
expression->button = NULL;
expression->label = g_strdup(label);
expression->expression = g_strdup(expr);
expression->enabled = enabled;
expression->deleted = FALSE;
expression->index = 0;
expression->next = NULL;
/* Add it at the end so the button order is always the same*/
if (*pfilter_expression_head == NULL) {
_filter_expression_head = expression;
} else {
prev = *pfilter_expression_head;
while (prev->next != NULL)
prev = prev->next;
prev->next = expression;
expression->index = prev->index + 1;
}
return(expression);
}
void
filter_expression_init(gboolean enable_prefs)
{
if (enable_prefs)
prefs.filter_expressions = pfilter_expression_head;
}
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