+
+static gint slist_path_cmp(const gchar *a, const gchar *b)
+{
+ return strcmp(a, b);
+}
+
+typedef GSList* (*GSListFunc) (gpointer list, gconstpointer data);
+
+static GSList* slist_path_add(GSList *list, gpointer data, GSListFunc func)
+{
+ g_assert(func);
+
+ if (!data)
+ return list;
+
+ if (!g_slist_find_custom(list, data, (GCompareFunc) slist_path_cmp))
+ list = func(list, data);
+ else
+ g_free(data);
+
+ return list;
+}
+
+static GSList* split_paths(const gchar *paths)
+{
+ GSList *list = NULL;
+ gchar **spl, **it;
+
+ if (!paths)
+ return NULL;
+ spl = g_strsplit(paths, ":", -1);
+ for (it = spl; *it; ++it)
+ list = slist_path_add(list, *it, (GSListFunc) g_slist_append);
+ g_free(spl);
+ return list;
+}
+
+void parse_paths_startup(void)
+{
+ const gchar *path;
+
+ if (xdg_start)
+ return;
+ xdg_start = TRUE;
+
+ path = g_getenv("XDG_CONFIG_HOME");
+ if (path && path[0] != '\0') /* not unset or empty */
+ xdg_config_home_path = g_build_filename(path, NULL);
+ else
+ xdg_config_home_path = g_build_filename(g_get_home_dir(), ".config",
+ NULL);
+
+ path = g_getenv("XDG_DATA_HOME");
+ if (path && path[0] != '\0') /* not unset or empty */
+ xdg_data_home_path = g_build_filename(path, NULL);
+ else
+ xdg_data_home_path = g_build_filename(g_get_home_dir(), ".local",
+ "share", NULL);
+
+ path = g_getenv("XDG_CONFIG_DIRS");
+ if (path && path[0] != '\0') /* not unset or empty */
+ xdg_config_dir_paths = split_paths(path);
+ else {
+ xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
+ g_strdup(CONFIGDIR),
+ (GSListFunc) g_slist_append);
+ xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
+ g_build_filename
+ (G_DIR_SEPARATOR_S,
+ "etc", "xdg", NULL),
+ (GSListFunc) g_slist_append);
+ }
+ xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
+ g_strdup(xdg_config_home_path),
+ (GSListFunc) g_slist_prepend);
+
+ path = g_getenv("XDG_DATA_DIRS");
+ if (path && path[0] != '\0') /* not unset or empty */
+ xdg_data_dir_paths = split_paths(path);
+ else {
+ xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
+ g_strdup(DATADIR),
+ (GSListFunc) g_slist_append);
+ xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
+ g_build_filename
+ (G_DIR_SEPARATOR_S,
+ "usr", "local", "share", NULL),
+ (GSListFunc) g_slist_append);
+ xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
+ g_build_filename
+ (G_DIR_SEPARATOR_S,
+ "usr", "share", NULL),
+ (GSListFunc) g_slist_append);
+ }
+ xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
+ g_strdup(xdg_data_home_path),
+ (GSListFunc) g_slist_prepend);
+}
+
+void parse_paths_shutdown(void)
+{
+ GSList *it;
+
+ if (!xdg_start)
+ return;
+ xdg_start = FALSE;
+
+ for (it = xdg_config_dir_paths; it; it = g_slist_next(it))
+ g_free(it->data);
+ g_slist_free(xdg_config_dir_paths);
+ xdg_config_dir_paths = NULL;
+ for (it = xdg_data_dir_paths; it; it = g_slist_next(it))
+ g_free(it->data);
+ g_slist_free(xdg_data_dir_paths);
+ xdg_data_dir_paths = NULL;
+ g_free(xdg_config_home_path);
+ xdg_config_home_path = NULL;
+ g_free(xdg_data_home_path);
+ xdg_data_home_path = NULL;
+}
+
+gchar *parse_expand_tilde(const gchar *f)
+{
+ gchar **spl;
+ gchar *ret;
+
+ if (!f)
+ return NULL;
+ spl = g_strsplit(f, "~", 0);
+ ret = g_strjoinv(g_get_home_dir(), spl);
+ g_strfreev(spl);
+ return ret;
+}
+
+gboolean parse_mkdir(const gchar *path, gint mode)
+{
+ gboolean ret = TRUE;
+
+ g_return_val_if_fail(path != NULL, FALSE);
+ g_return_val_if_fail(path[0] != '\0', FALSE);
+
+ if (!g_file_test(path, G_FILE_TEST_IS_DIR))
+ if (mkdir(path, mode) == -1)
+ ret = FALSE;
+
+ return ret;
+}
+
+gboolean parse_mkdir_path(const gchar *path, gint mode)
+{
+ gboolean ret = TRUE;
+
+ g_return_val_if_fail(path != NULL, FALSE);
+ g_return_val_if_fail(path[0] == '/', FALSE);
+
+ if (!g_file_test(path, G_FILE_TEST_IS_DIR)) {
+ gchar *c, *e;
+
+ c = g_strdup(path);
+ e = c;
+ while ((e = strchr(e + 1, '/'))) {
+ *e = '\0';
+ if (!(ret = parse_mkdir(c, mode)))
+ goto parse_mkdir_path_end;
+ *e = '/';
+ }
+ ret = parse_mkdir(c, mode);
+
+ parse_mkdir_path_end:
+ g_free(c);
+ }
+
+ return ret;
+}
+
+const gchar* parse_xdg_config_home_path(void)
+{
+ return xdg_config_home_path;
+}
+
+const gchar* parse_xdg_data_home_path(void)
+{
+ return xdg_data_home_path;
+}
+
+GSList* parse_xdg_config_dir_paths(void)
+{
+ return xdg_config_dir_paths;
+}
+
+GSList* parse_xdg_data_dir_paths(void)
+{
+ return xdg_data_dir_paths;
+}