mc/src/dirhist.c
1998-02-27 04:54:42 +00:00

132 lines
2.8 KiB
C

/* Directory History routines
Copyright (C) 1997 The Free Software Foundation
Written by: 1997 Miguel de Icaza
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., 675 Mass Ave, Cambridge, MA 02139, USA.
FIXME: Maybe maintain a limit of the number of elements in the history
that should be kept?
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
#include "profile.h"
#include "setup.h"
#include "dirhist.h"
#include "global.h"
#include "mad.h"
struct dirhist_entry {
char *directory;
struct dirhist_entry *next;
};
/* Here we keep a pointer to all of the directories we have */
static struct dirhist_entry *base;
/* The iterator pointer */
static struct dirhist_entry *iter;
/* the field used for loading/saving data from the profile */
static char *dirhist_name = "Directory history";
void
directory_history_load (void)
{
char entry_name [20];
char *value;
int i;
for (i = 0; i < DIRECTORY_HISTORY_LOAD_COUNT; i++){
sprintf (entry_name, "%d", i);
value = get_profile_string (dirhist_name, entry_name, "", profile_name);
if (!(value || *value))
continue;
directory_history_add (value);
}
}
void
directory_history_save (void)
{
char entry_name [20];
char *dir;
int i;
directory_history_init_iterator ();
for (i = 0; i < DIRECTORY_HISTORY_LOAD_COUNT; i++){
dir = directory_history_get_next ();
if (!dir)
break;
sprintf (entry_name, "%d", i);
WritePrivateProfileString (dirhist_name, entry_name, dir, profile_name);
}
}
static void
directory_history_delete (struct dirhist_entry *e)
{
if (!e)
return;
directory_history_delete (e->next);
free (e->directory);
free (e);
}
void
directory_history_free (void)
{
directory_history_delete (base);
}
void
directory_history_init_iterator (void)
{
iter = base;
}
char *
directory_history_get_next (void)
{
struct dirhist_entry *p;
if (!iter)
return NULL;
p = iter;
iter = iter->next;
return p->directory;
}
void
directory_history_add (char *directory)
{
struct dirhist_entry *p;
p = (struct dirhist_entry *) malloc (sizeof (struct dirhist_entry));
if (!p)
return;
p->directory = strdup (directory);
p->next = base;
base = p;
}