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-rw-r--r--libnautilus-private/nautilus-string-map.c330
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diff --git a/libnautilus-private/nautilus-string-map.c b/libnautilus-private/nautilus-string-map.c
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-/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
-
- nautilus-string-map.c: A many-to-one string mapping data structure.
-
- Copyright (C) 1999, 2000 Eazel, Inc.
-
- 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.
-
- Author: Ramiro Estrugo <ramiro@eazel.com>
-*/
-
-#include <config.h>
-
-#include "nautilus-string-map.h"
-#include "nautilus-string-list.h"
-#include "nautilus-string.h"
-#include "nautilus-glib-extensions.h"
-#include "nautilus-lib-self-check-functions.h"
-#include <string.h>
-
-struct _NautilusStringMap
-{
- GList *map;
- gboolean case_sensitive;
-};
-
-typedef struct
-{
- char *string;
- NautilusStringList *map_list;
-} MapEntry;
-
-/* MapEntry things */
-static MapEntry *map_entry_new (const char *string,
- gboolean case_sensitive);
-static void map_entry_free (MapEntry *map_entry);
-static MapEntry *map_entry_list_lookup_mapped_string (GList *entry_list,
- const char *mapped_string,
- gboolean case_sensitive);
-static MapEntry *map_entry_list_lookup (GList *entry_list,
- const char *string);
-static gboolean str_is_equal (const char *a,
- const char *b,
- gboolean case_sensitive);
-
-/**
- * nautilus_string_map_new:
- *
- * @case_sensitive: Boolean flag indicating whether the string map is case sensitive.
- *
- * Allocate an empty string map.
- *
- * Return value: A newly allocated string map.
- */
-NautilusStringMap *
-nautilus_string_map_new (gboolean case_sensitive)
-{
- NautilusStringMap * string_map;
-
- string_map = g_new (NautilusStringMap, 1);
-
- string_map->map = NULL;
- string_map->case_sensitive = case_sensitive;
-
- return string_map;
-}
-
-/**
- * nautilus_string_map_free:
- *
- * @string_map: A NautilusStringMap
- *
- * Free the string map.
- */
-void
-nautilus_string_map_free (NautilusStringMap *string_map)
-{
- if (string_map == NULL) {
- return;
- }
-
- nautilus_string_map_clear (string_map);
-
- g_free (string_map);
-}
-
-static void
-map_for_each_node_free (gpointer data,
- gpointer user_data)
-{
- MapEntry *map_entry = (MapEntry *) data;
- g_assert (map_entry != NULL);
-
- map_entry_free (map_entry);
-}
-
-/**
- * nautilus_string_map_clear:
- *
- * @string_map: A NautilusStringMap
- *
- * Clear the string map.
- */
-void
-nautilus_string_map_clear (NautilusStringMap *string_map)
-{
- if (string_map == NULL) {
- return;
- }
-
- g_return_if_fail (string_map != NULL);
-
- nautilus_g_list_free_deep_custom (string_map->map, map_for_each_node_free, NULL);
-
- string_map->map = NULL;
-}
-
-/**
- * nautilus_string_map_lookup:
- *
- * @string_map: A NautilusStringMap
- * @string: The mapped string to lookup
- *
- * Lookup the mapping for 'string'
- *
- * Return value: A copy of the mapped_to_string or NULL if no mapping exists.
- */
-char *
-nautilus_string_map_lookup (const NautilusStringMap *string_map,
- const char *string)
-{
- MapEntry *map_entry;
-
- if (string_map == NULL || string == NULL) {
- return NULL;
- }
-
- map_entry = map_entry_list_lookup (string_map->map, string);
-
- return map_entry ? g_strdup (map_entry->string) : NULL;
-}
-
-/**
- * nautilus_string_map_add:
- *
- * @string_map: A NautilusStringMap
- *
- * Add a mapping from 'string' to 'strings_maps_to'
- */
-void
-nautilus_string_map_add (NautilusStringMap *string_map,
- const char *string_maps_to,
- const char *string)
-{
- MapEntry *map_entry;
-
- g_return_if_fail (string_map != NULL);
- g_return_if_fail (string_maps_to != NULL);
- g_return_if_fail (string != NULL);
-
- map_entry = map_entry_list_lookup_mapped_string (string_map->map, string_maps_to, string_map->case_sensitive);
-
- if (map_entry == NULL) {
- map_entry = map_entry_new (string_maps_to, string_map->case_sensitive);
-
- /* Add a mapping for the string_maps_to to simplify things */
- nautilus_string_list_insert (map_entry->map_list, string_maps_to);
-
- string_map->map = g_list_append (string_map->map, map_entry);
- }
-
- nautilus_string_list_insert (map_entry->map_list, string);
-}
-
-/* MapEntry things */
-static MapEntry *
-map_entry_new (const char *string,
- gboolean case_sensitive)
-{
- MapEntry *map_entry;
-
- g_return_val_if_fail (string != NULL, NULL);
-
- map_entry = g_new (MapEntry, 1);
- map_entry->map_list = nautilus_string_list_new (case_sensitive);
- map_entry->string = g_strdup (string);
-
- return map_entry;
-}
-
-static void
-map_entry_free (MapEntry *map_entry)
-{
- g_return_if_fail (map_entry);
-
- nautilus_string_list_free (map_entry->map_list);
- map_entry->map_list = NULL;
- g_free (map_entry->string);
- g_free (map_entry);
-}
-
-static MapEntry *
-map_entry_list_lookup_mapped_string (GList *entry_list,
- const char *mapped_string,
- gboolean case_sensitive)
-{
- GList *iterator;
-
- g_return_val_if_fail (mapped_string != NULL, NULL);
-
- if (entry_list == NULL) {
- return NULL;
- }
-
- for (iterator = entry_list; iterator != NULL; iterator = iterator->next) {
- MapEntry *map_entry = (MapEntry *) iterator->data;
- g_assert (map_entry != NULL);
-
- if (str_is_equal (map_entry->string, mapped_string, case_sensitive)) {
- return map_entry;
- }
- }
-
- return NULL;
-}
-
-static MapEntry *
-map_entry_list_lookup (GList *entry_list,
- const char *string)
-{
- GList *iterator;
-
- g_return_val_if_fail (string != NULL, NULL);
-
- if (entry_list == NULL) {
- return NULL;
- }
-
- for (iterator = entry_list; iterator != NULL; iterator = iterator->next) {
- MapEntry *map_entry = (MapEntry *) iterator->data;
- g_assert (map_entry != NULL);
-
- if (nautilus_string_list_contains (map_entry->map_list, string)) {
- return map_entry;
- }
- }
-
- return NULL;
-}
-
-static gboolean
-str_is_equal (const char *a,
- const char *b,
- gboolean case_sensitive)
-{
- return case_sensitive ? nautilus_str_is_equal (a, b) : nautilus_istr_is_equal (a, b);
-}
-
-#if !defined (NAUTILUS_OMIT_SELF_CHECK)
-
-void
-nautilus_self_check_string_map (void)
-{
- NautilusStringMap *map;
-
- map = nautilus_string_map_new (TRUE);
-
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "foo"), NULL);
-
- nautilus_string_map_clear (map);
-
- nautilus_string_map_add (map, "animal", "dog");
- nautilus_string_map_add (map, "animal", "cat");
- nautilus_string_map_add (map, "animal", "mouse");
- nautilus_string_map_add (map, "human", "geek");
- nautilus_string_map_add (map, "human", "nerd");
- nautilus_string_map_add (map, "human", "lozer");
-
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "animal"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "cat"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "dog"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "mouse"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "human"), "human");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "geek"), "human");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "nerd"), "human");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "lozer"), "human");
-
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "Lozer"), NULL);
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "HuMaN"), NULL);
-
- nautilus_string_map_free (map);
-
- /*
- * case insensitive tests
- *
- */
- map = nautilus_string_map_new (FALSE);
-
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "foo"), NULL);
-
- nautilus_string_map_clear (map);
-
- nautilus_string_map_add (map, "animal", "dog");
- nautilus_string_map_add (map, "animal", "cat");
- nautilus_string_map_add (map, "animal", "mouse");
-
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "animal"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "Animal"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "cat"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "CAT"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "dog"), "animal");
- NAUTILUS_CHECK_STRING_RESULT (nautilus_string_map_lookup (map, "DoG"), "animal");
-
- nautilus_string_map_free (map);
-}
-
-#endif /* !NAUTILUS_OMIT_SELF_CHECK */