472 lines
13 KiB
C
472 lines
13 KiB
C
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
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parse.c for the Openbox window manager
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Copyright (c) 2003 Ben Jansens
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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See the COPYING file for a copy of the GNU General Public License.
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*/
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#include "parse.h"
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#include <glib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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static gboolean xdg_start;
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static gchar *xdg_config_home_path;
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static gchar *xdg_data_home_path;
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static GSList *xdg_config_dir_paths;
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static GSList *xdg_data_dir_paths;
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struct Callback {
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gchar *tag;
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ParseCallback func;
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gpointer data;
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};
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struct _ObParseInst {
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GHashTable *callbacks;
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};
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static void destfunc(struct Callback *c)
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{
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g_free(c->tag);
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g_free(c);
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}
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ObParseInst* parse_startup()
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{
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ObParseInst *i = g_new(ObParseInst, 1);
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i->callbacks = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
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(GDestroyNotify)destfunc);
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return i;
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}
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void parse_shutdown(ObParseInst *i)
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{
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if (i) {
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g_hash_table_destroy(i->callbacks);
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g_free(i);
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}
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}
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void parse_register(ObParseInst *i, const gchar *tag,
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ParseCallback func, gpointer data)
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{
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struct Callback *c;
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if ((c = g_hash_table_lookup(i->callbacks, tag))) {
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g_warning("tag '%s' already registered", tag);
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return;
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}
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c = g_new(struct Callback, 1);
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c->tag = g_strdup(tag);
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c->func = func;
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c->data = data;
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g_hash_table_insert(i->callbacks, c->tag, c);
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}
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gboolean parse_load_rc(xmlDocPtr *doc, xmlNodePtr *root)
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{
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GSList *it;
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gchar *path;
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gboolean r = FALSE;
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for (it = xdg_config_dir_paths; !r && it; it = g_slist_next(it)) {
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path = g_build_filename(it->data, "openbox", "rc.xml", NULL);
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r = parse_load(path, "openbox_config", doc, root);
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g_free(path);
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}
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if (!r)
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g_warning("unable to find a valid config file, using defaults");
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return r;
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}
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gboolean parse_load_menu(const gchar *file, xmlDocPtr *doc, xmlNodePtr *root)
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{
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GSList *it;
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gchar *path;
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gboolean r = FALSE;
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if (file[0] == '/') {
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r = parse_load(file, "openbox_menu", doc, root);
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} else {
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for (it = xdg_config_dir_paths; !r && it; it = g_slist_next(it)) {
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path = g_build_filename(it->data, "openbox", file, NULL);
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r = parse_load(path, "openbox_menu", doc, root);
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g_free(path);
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}
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}
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if (!r)
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g_warning("unable to find a valid menu file '%s'", file);
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return r;
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}
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gboolean parse_load(const gchar *path, const gchar *rootname,
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xmlDocPtr *doc, xmlNodePtr *root)
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{
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if ((*doc = xmlParseFile(path))) {
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*root = xmlDocGetRootElement(*doc);
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if (!*root) {
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xmlFreeDoc(*doc);
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*doc = NULL;
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g_warning("%s is an empty document", path);
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} else {
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if (xmlStrcasecmp((*root)->name, (const xmlChar*)rootname)) {
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xmlFreeDoc(*doc);
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*doc = NULL;
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g_warning("document %s is of wrong type. root node is "
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"not '%s'", path, rootname);
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}
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}
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}
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if (!*doc)
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return FALSE;
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return TRUE;
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}
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gboolean parse_load_mem(gpointer data, guint len, const gchar *rootname,
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xmlDocPtr *doc, xmlNodePtr *root)
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{
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if ((*doc = xmlParseMemory(data, len))) {
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*root = xmlDocGetRootElement(*doc);
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if (!*root) {
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xmlFreeDoc(*doc);
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*doc = NULL;
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g_warning("Given memory is an empty document");
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} else {
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if (xmlStrcasecmp((*root)->name, (const xmlChar*)rootname)) {
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xmlFreeDoc(*doc);
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*doc = NULL;
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g_warning("document in given memory is of wrong type. root "
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"node is not '%s'", rootname);
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}
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}
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}
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if (!*doc)
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return FALSE;
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return TRUE;
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}
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void parse_close(xmlDocPtr doc)
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{
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xmlFreeDoc(doc);
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}
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void parse_tree(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node)
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{
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while (node) {
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struct Callback *c = g_hash_table_lookup(i->callbacks, node->name);
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if (c)
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c->func(i, doc, node, c->data);
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node = node->next;
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}
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}
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gchar *parse_string(xmlDocPtr doc, xmlNodePtr node)
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{
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xmlChar *c = xmlNodeListGetString(doc, node->children, TRUE);
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gchar *s = g_strdup(c ? (gchar*)c : "");
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xmlFree(c);
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return s;
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}
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gint parse_int(xmlDocPtr doc, xmlNodePtr node)
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{
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xmlChar *c = xmlNodeListGetString(doc, node->children, TRUE);
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gint i = atoi((gchar*)c);
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xmlFree(c);
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return i;
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}
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gboolean parse_bool(xmlDocPtr doc, xmlNodePtr node)
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{
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xmlChar *c = xmlNodeListGetString(doc, node->children, TRUE);
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gboolean b = FALSE;
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if (!xmlStrcasecmp(c, (const xmlChar*) "true"))
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b = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "yes"))
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b = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "on"))
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b = TRUE;
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xmlFree(c);
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return b;
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}
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gboolean parse_contains(const gchar *val, xmlDocPtr doc, xmlNodePtr node)
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{
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xmlChar *c = xmlNodeListGetString(doc, node->children, TRUE);
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gboolean r;
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r = !xmlStrcasecmp(c, (const xmlChar*) val);
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xmlFree(c);
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return r;
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}
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xmlNodePtr parse_find_node(const gchar *tag, xmlNodePtr node)
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{
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while (node) {
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if (!xmlStrcasecmp(node->name, (const xmlChar*) tag))
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return node;
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node = node->next;
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}
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return NULL;
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}
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gboolean parse_attr_bool(const gchar *name, xmlNodePtr node, gboolean *value)
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{
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xmlChar *c = xmlGetProp(node, (const xmlChar*) name);
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gboolean r = FALSE;
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if (c) {
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if (!xmlStrcasecmp(c, (const xmlChar*) "true"))
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*value = TRUE, r = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "yes"))
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*value = TRUE, r = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "on"))
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*value = TRUE, r = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "false"))
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*value = FALSE, r = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "no"))
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*value = FALSE, r = TRUE;
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else if (!xmlStrcasecmp(c, (const xmlChar*) "off"))
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*value = FALSE, r = TRUE;
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}
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xmlFree(c);
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return r;
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}
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gboolean parse_attr_int(const gchar *name, xmlNodePtr node, gint *value)
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{
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xmlChar *c = xmlGetProp(node, (const xmlChar*) name);
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gboolean r = FALSE;
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if (c) {
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*value = atoi((gchar*)c);
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r = TRUE;
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}
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xmlFree(c);
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return r;
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}
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gboolean parse_attr_string(const gchar *name, xmlNodePtr node, gchar **value)
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{
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xmlChar *c = xmlGetProp(node, (const xmlChar*) name);
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gboolean r = FALSE;
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if (c) {
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*value = g_strdup((gchar*)c);
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r = TRUE;
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}
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xmlFree(c);
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return r;
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}
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gboolean parse_attr_contains(const gchar *val, xmlNodePtr node,
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const gchar *name)
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{
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xmlChar *c = xmlGetProp(node, (const xmlChar*) name);
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gboolean r = FALSE;
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if (c)
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r = !xmlStrcasecmp(c, (const xmlChar*) val);
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xmlFree(c);
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return r;
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}
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static gint slist_path_cmp(const gchar *a, const gchar *b)
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{
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return strcmp(a, b);
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}
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typedef GSList* (*GSListFunc) (gpointer list, gconstpointer data);
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static GSList* slist_path_add(GSList *list, gpointer data, GSListFunc func)
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{
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g_assert(func);
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if (!data)
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return list;
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if (!g_slist_find_custom(list, data, (GCompareFunc) slist_path_cmp))
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list = func(list, data);
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return list;
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}
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static GSList* split_paths(const gchar *paths)
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{
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GSList *list = NULL;
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gchar **spl, **it;
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if (!paths)
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return NULL;
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spl = g_strsplit(paths, ":", -1);
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for (it = spl; *it; ++it)
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list = slist_path_add(list, *it, (GSListFunc) g_slist_append);
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g_free(spl);
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return list;
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}
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void parse_paths_startup()
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{
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const gchar *path;
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if (xdg_start)
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return;
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xdg_start = TRUE;
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path = g_getenv("XDG_CONFIG_HOME");
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if (path && path[0] != '\0') /* not unset or empty */
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xdg_config_home_path = g_build_filename(path, NULL);
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else
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xdg_config_home_path = g_build_filename(g_get_home_dir(), ".config",
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NULL);
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path = g_getenv("XDG_DATA_HOME");
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if (path && path[0] != '\0') /* not unset or empty */
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xdg_data_home_path = g_build_filename(path, NULL);
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else
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xdg_data_home_path = g_build_filename(g_get_home_dir(), ".local",
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"share", NULL);
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path = g_getenv("XDG_CONFIG_DIRS");
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if (path && path[0] != '\0') /* not unset or empty */
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xdg_config_dir_paths = split_paths(path);
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else {
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xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
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g_build_filename
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(G_DIR_SEPARATOR_S,
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"etc", "xdg", NULL),
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(GSListFunc) g_slist_append);
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xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
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g_strdup(CONFIGDIR),
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(GSListFunc) g_slist_append);
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}
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xdg_config_dir_paths = slist_path_add(xdg_config_dir_paths,
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xdg_config_home_path,
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(GSListFunc) g_slist_prepend);
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path = g_getenv("XDG_DATA_DIRS");
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if (path && path[0] != '\0') /* not unset or empty */
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xdg_data_dir_paths = split_paths(path);
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else {
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xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
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g_build_filename
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(G_DIR_SEPARATOR_S,
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"usr", "local", "share", NULL),
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(GSListFunc) g_slist_append);
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xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
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g_build_filename
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(G_DIR_SEPARATOR_S,
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"usr", "share", NULL),
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(GSListFunc) g_slist_append);
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xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
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g_strdup(DATADIR),
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(GSListFunc) g_slist_append);
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}
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xdg_data_dir_paths = slist_path_add(xdg_data_dir_paths,
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xdg_data_home_path,
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(GSListFunc) g_slist_prepend);
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}
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void parse_paths_shutdown()
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{
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GSList *it;
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if (!xdg_start)
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return;
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xdg_start = FALSE;
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for (it = xdg_config_dir_paths; it; it = g_slist_next(it))
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g_free(it->data);
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g_slist_free(xdg_config_dir_paths);
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xdg_config_dir_paths = NULL;
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for (it = xdg_data_dir_paths; it; it = g_slist_next(it))
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g_free(it->data);
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g_slist_free(xdg_data_dir_paths);
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xdg_data_dir_paths = NULL;
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}
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gchar *parse_expand_tilde(const gchar *f)
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{
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gchar **spl;
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gchar *ret;
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if (!f)
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return NULL;
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spl = g_strsplit(f, "~", 0);
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ret = g_strjoinv(g_get_home_dir(), spl);
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g_strfreev(spl);
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return ret;
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}
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gboolean parse_mkdir(const gchar *path, gint mode)
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{
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gboolean ret = TRUE;
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g_return_val_if_fail(path != NULL, FALSE);
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g_return_val_if_fail(path[0] != '\0', FALSE);
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if (!g_file_test(path, G_FILE_TEST_IS_DIR))
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if (mkdir(path, mode) == -1)
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ret = FALSE;
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return ret;
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}
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gboolean parse_mkdir_path(const gchar *path, gint mode)
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{
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gboolean ret = TRUE;
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g_return_val_if_fail(path != NULL, FALSE);
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g_return_val_if_fail(path[0] == '/', FALSE);
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if (!g_file_test(path, G_FILE_TEST_IS_DIR)) {
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gchar *c, *e;
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c = g_strdup(path);
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e = c;
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while ((e = strchr(e + 1, '/'))) {
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*e = '\0';
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if (!(ret = parse_mkdir(c, mode)))
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goto parse_mkdir_path_end;
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*e = '/';
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}
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ret = parse_mkdir(c, mode);
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parse_mkdir_path_end:
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g_free(c);
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}
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return ret;
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}
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const gchar* parse_xdg_config_home_path()
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{
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return xdg_config_home_path;
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}
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const gchar* parse_xdg_data_home_path()
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{
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return xdg_data_home_path;
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}
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GSList* parse_xdg_config_dir_paths()
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{
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return xdg_config_dir_paths;
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}
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GSList* parse_xdg_data_dir_paths()
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{
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return xdg_data_dir_paths;
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}
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