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/*=============================================================================*\
* File: gfsmSet.c
* Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
* Description: finite state machine library
*
* Copyright (c) 2004-2008 Bryan Jurish.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*=============================================================================*/
#include <gfsmSet.h>
#include <gfsmCommon.h>
//-- no-inline definitions
#ifndef GFSM_INLINE_ENABLED
# include <gfsmSet.hi>
#endif
/*======================================================================
* Constructors etc.
*/
/*--------------------------------------------------------------
* copy_foreach_func()
*/
gboolean gfsm_set_copy_foreach_func(gpointer key, gpointer value, gfsmSet *data)
{
if (data) g_tree_insert(data,key,value);
return FALSE; // don't stop iterating
}
/*--------------------------------------------------------------
* clear()
*/
void gfsm_set_clear(gfsmSet *set)
{
guint i;
GPtrArray *keys = g_ptr_array_sized_new(gfsm_set_size(set));
gfsm_set_to_ptr_array(set,keys);
for (i=0; i < keys->len; i++) {
g_tree_remove(set, g_ptr_array_index(keys,i));
}
g_ptr_array_free(keys,TRUE);
}
/*======================================================================
* Algebra
*/
/*--------------------------------------------------------------
* union_func()
*/
gboolean gfsm_set_union_func(gpointer key, GFSM_UNUSED gpointer value, gfsmSetUnionData *data)
{
if (!data->dupfunc) {
//-- no memory hairiness: just insert
gfsm_set_insert(data->dst, key);
} else {
if (!gfsm_set_contains(data->dst, key))
gfsm_set_insert(data->dst, (*data->dupfunc)(key));
}
return FALSE;
}
/*--------------------------------------------------------------
* difference_func()
*/
gboolean gfsm_set_difference_func(gpointer key, GFSM_UNUSED gpointer value, gfsmSet *set1)
{
gfsm_set_remove(set1,key);
return FALSE;
}
/*--------------------------------------------------------------
* intersection()
*/
gfsmSet *gfsm_set_intersection(gfsmSet *set1, gfsmSet *set2)
{
guint i;
GPtrArray *elts1 = g_ptr_array_sized_new(gfsm_set_size(set1));
gfsm_set_to_ptr_array(set1,elts1);
for (i=0; i < elts1->len; i++) {
gpointer elt = g_ptr_array_index(elts1,i);
if (!gfsm_set_contains(set2,elt)) gfsm_set_remove(set1,elt);
}
g_ptr_array_free(elts1,TRUE);
return set1;
}
/*======================================================================
* Converters
*/
/*--------------------------------------------------------------
* to_slist_foreach_func()
*/
gboolean gfsm_set_to_slist_foreach_func(gpointer key, GFSM_UNUSED gpointer value, GSList **dst)
{
*dst = g_slist_prepend(*dst, key);
return FALSE; //-- don't stop iterating
}
/*--------------------------------------------------------------
* to_ptr_array_foreach_func()
*/
gboolean gfsm_set_to_ptr_array_foreach_func(gpointer key, GFSM_UNUSED gpointer value, GPtrArray *dst)
{
g_ptr_array_add(dst,key);
return FALSE;
}
/*======================================================================
* Debugging
*/
#ifdef GFSM_DEBUG_ENABLED
gboolean gfsm_set_print_foreach_func(gpointer key, gpointer data, FILE *f)
{
fprintf(f, " %u", GPOINTER_TO_UINT(key));
return FALSE;
}
void gfsm_set_print_uint(gfsmSet *set, FILE *f)
{
fputc('{',f);
g_tree_foreach(set, (GTraverseFunc)gfsm_set_print_foreach_func, f);
fputs(" }", f);
}
#endif /*GFSM_DEBUG_ENABLED*/
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