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prefs.c
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/*
* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <glib.h>
#include "internal.h"
#include "prefs.h"
#include "debug.h"
#include "util.h"
#ifdef _WIN32
#include "win32dep.h"
#endif
struct pref_cb {
PurplePrefCallback func;
gpointer data;
guint id;
void *handle;
};
/* TODO: This should use PurpleValues? */
struct purple_pref {
PurplePrefType type;
char *name;
union {
gpointer generic;
gboolean boolean;
int integer;
char *string;
GList *stringlist;
} value;
GSList *callbacks;
struct purple_pref *parent;
struct purple_pref *sibling;
struct purple_pref *first_child;
};
static struct purple_pref prefs = {
PURPLE_PREF_NONE,
NULL,
{ NULL },
NULL,
NULL,
NULL,
NULL
};
static GHashTable *prefs_hash = NULL;
static guint save_timer = 0;
static gboolean prefs_loaded = FALSE;
/*********************************************************************
* Private utility functions *
*********************************************************************/
static struct
purple_pref *find_pref(const char *name)
{
g_return_val_if_fail(name != NULL && name[0] == '/', NULL);
if (name[1] == '\0')
return &prefs;
else
{
/* When we're initializing, the debug system is
* initialized before the prefs system, but debug
* calls will end up calling prefs functions, so we
* need to deal cleanly here. */
if (prefs_hash)
return g_hash_table_lookup(prefs_hash, name);
else
return NULL;
}
}
/*********************************************************************
* Writing to disk *
*********************************************************************/
/*
* This function recursively creates the xmlnode tree from the prefs
* tree structure. Yay recursion!
*/
static void
pref_to_xmlnode(xmlnode *parent, struct purple_pref *pref)
{
xmlnode *node, *childnode;
struct purple_pref *child;
char buf[21];
GList *cur;
/* Create a new node */
node = xmlnode_new_child(parent, "pref");
xmlnode_set_attrib(node, "name", pref->name);
/* Set the type of this node (if type == PURPLE_PREF_NONE then do nothing) */
if (pref->type == PURPLE_PREF_INT) {
xmlnode_set_attrib(node, "type", "int");
g_snprintf(buf, sizeof(buf), "%d", pref->value.integer);
xmlnode_set_attrib(node, "value", buf);
}
else if (pref->type == PURPLE_PREF_STRING) {
xmlnode_set_attrib(node, "type", "string");
xmlnode_set_attrib(node, "value", pref->value.string ? pref->value.string : "");
}
else if (pref->type == PURPLE_PREF_STRING_LIST) {
xmlnode_set_attrib(node, "type", "stringlist");
for (cur = pref->value.stringlist; cur != NULL; cur = cur->next)
{
childnode = xmlnode_new_child(node, "item");
xmlnode_set_attrib(childnode, "value", cur->data ? cur->data : "");
}
}
else if (pref->type == PURPLE_PREF_PATH) {
char *encoded = g_filename_to_utf8(pref->value.string ? pref->value.string : "", -1, NULL, NULL, NULL);
xmlnode_set_attrib(node, "type", "path");
xmlnode_set_attrib(node, "value", encoded);
g_free(encoded);
}
else if (pref->type == PURPLE_PREF_PATH_LIST) {
xmlnode_set_attrib(node, "type", "pathlist");
for (cur = pref->value.stringlist; cur != NULL; cur = cur->next)
{
char *encoded = g_filename_to_utf8(cur->data ? cur->data : "", -1, NULL, NULL, NULL);
childnode = xmlnode_new_child(node, "item");
xmlnode_set_attrib(childnode, "value", encoded);
g_free(encoded);
}
}
else if (pref->type == PURPLE_PREF_BOOLEAN) {
xmlnode_set_attrib(node, "type", "bool");
g_snprintf(buf, sizeof(buf), "%d", pref->value.boolean);
xmlnode_set_attrib(node, "value", buf);
}
/* All My Children */
for (child = pref->first_child; child != NULL; child = child->sibling)
pref_to_xmlnode(node, child);
}
static xmlnode *
prefs_to_xmlnode(void)
{
xmlnode *node;
struct purple_pref *pref, *child;
pref = &prefs;
/* Create the root preference node */
node = xmlnode_new("pref");
xmlnode_set_attrib(node, "version", "1");
xmlnode_set_attrib(node, "name", "/");
/* All My Children */
for (child = pref->first_child; child != NULL; child = child->sibling)
pref_to_xmlnode(node, child);
return node;
}
static void
sync_prefs(void)
{
xmlnode *node;
char *data;
if (!prefs_loaded)
{
/*
* TODO: Call schedule_prefs_save()? Ideally we wouldn't need to.
* (prefs.xml should be loaded when purple_prefs_init is called)
*/
purple_debug_error("prefs", "Attempted to save prefs before "
"they were read!\n");
return;
}
node = prefs_to_xmlnode();
data = xmlnode_to_formatted_str(node, NULL);
purple_util_write_data_to_file("prefs.xml", data, -1);
g_free(data);
xmlnode_free(node);
}
static gboolean
save_cb(gpointer data)
{
sync_prefs();
save_timer = 0;
return FALSE;
}
static void
schedule_prefs_save(void)
{
if (save_timer == 0)
save_timer = purple_timeout_add_seconds(5, save_cb, NULL);
}
/*********************************************************************
* Reading from disk *
*********************************************************************/
static GList *prefs_stack = NULL;
static void
prefs_start_element_handler (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
PurplePrefType pref_type = PURPLE_PREF_NONE;
int i;
const char *pref_name = NULL, *pref_value = NULL;
GString *pref_name_full;
GList *tmp;
if(!purple_strequal(element_name, "pref") &&
!purple_strequal(element_name, "item"))
return;
for(i = 0; attribute_names[i]; i++) {
if(purple_strequal(attribute_names[i], "name")) {
pref_name = attribute_values[i];
} else if(purple_strequal(attribute_names[i], "type")) {
if(purple_strequal(attribute_values[i], "bool"))
pref_type = PURPLE_PREF_BOOLEAN;
else if(purple_strequal(attribute_values[i], "int"))
pref_type = PURPLE_PREF_INT;
else if(purple_strequal(attribute_values[i], "string"))
pref_type = PURPLE_PREF_STRING;
else if(purple_strequal(attribute_values[i], "stringlist"))
pref_type = PURPLE_PREF_STRING_LIST;
else if(purple_strequal(attribute_values[i], "path"))
pref_type = PURPLE_PREF_PATH;
else if(purple_strequal(attribute_values[i], "pathlist"))
pref_type = PURPLE_PREF_PATH_LIST;
else
return;
} else if(purple_strequal(attribute_names[i], "value")) {
pref_value = attribute_values[i];
}
}
if ((pref_type == PURPLE_PREF_BOOLEAN || pref_type == PURPLE_PREF_INT) &&
pref_value == NULL) {
/* Missing a value attribute */
return;
}
if(purple_strequal(element_name, "item")) {
struct purple_pref *pref;
pref_name_full = g_string_new("");
for(tmp = prefs_stack; tmp; tmp = tmp->next) {
pref_name_full = g_string_prepend(pref_name_full, tmp->data);
pref_name_full = g_string_prepend_c(pref_name_full, '/');
}
pref = find_pref(pref_name_full->str);
if(pref) {
if(pref->type == PURPLE_PREF_STRING_LIST) {
pref->value.stringlist = g_list_append(pref->value.stringlist,
g_strdup(pref_value));
} else if(pref->type == PURPLE_PREF_PATH_LIST) {
pref->value.stringlist = g_list_append(pref->value.stringlist,
g_filename_from_utf8(pref_value, -1, NULL, NULL, NULL));
}
}
g_string_free(pref_name_full, TRUE);
} else {
char *decoded;
if(!pref_name || purple_strequal(pref_name, "/"))
return;
pref_name_full = g_string_new(pref_name);
for(tmp = prefs_stack; tmp; tmp = tmp->next) {
pref_name_full = g_string_prepend_c(pref_name_full, '/');
pref_name_full = g_string_prepend(pref_name_full, tmp->data);
}
pref_name_full = g_string_prepend_c(pref_name_full, '/');
switch(pref_type) {
case PURPLE_PREF_NONE:
purple_prefs_add_none(pref_name_full->str);
break;
case PURPLE_PREF_BOOLEAN:
purple_prefs_set_bool(pref_name_full->str, atoi(pref_value));
break;
case PURPLE_PREF_INT:
purple_prefs_set_int(pref_name_full->str, atoi(pref_value));
break;
case PURPLE_PREF_STRING:
purple_prefs_set_string(pref_name_full->str, pref_value);
break;
case PURPLE_PREF_STRING_LIST:
purple_prefs_set_string_list(pref_name_full->str, NULL);
break;
case PURPLE_PREF_PATH:
if (pref_value) {
decoded = g_filename_from_utf8(pref_value, -1, NULL, NULL, NULL);
purple_prefs_set_path(pref_name_full->str, decoded);
g_free(decoded);
} else {
purple_prefs_set_path(pref_name_full->str, NULL);
}
break;
case PURPLE_PREF_PATH_LIST:
purple_prefs_set_path_list(pref_name_full->str, NULL);
break;
}
prefs_stack = g_list_prepend(prefs_stack, g_strdup(pref_name));
g_string_free(pref_name_full, TRUE);
}
}
static void
prefs_end_element_handler(GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data, GError **error)
{
if(prefs_stack && purple_strequal(element_name, "pref")) {
g_free(prefs_stack->data);
prefs_stack = g_list_delete_link(prefs_stack, prefs_stack);
}
}
static GMarkupParser prefs_parser = {
prefs_start_element_handler,
prefs_end_element_handler,
NULL,
NULL,
NULL
};
gboolean
purple_prefs_load()
{
gchar *filename = g_build_filename(purple_user_dir(), "prefs.xml", NULL);
gchar *contents = NULL;
gsize length;
GMarkupParseContext *context;
GError *error = NULL;
if (!filename) {
prefs_loaded = TRUE;
return FALSE;
}
purple_debug_info("prefs", "Reading %s\n", filename);
if(!g_file_get_contents(filename, &contents, &length, &error)) {
#ifdef _WIN32
gchar *common_appdata = wpurple_get_special_folder(CSIDL_COMMON_APPDATA);
#endif
g_free(filename);
g_error_free(error);
error = NULL;
#ifdef _WIN32
filename = g_build_filename(common_appdata ? common_appdata : "", "purple", "prefs.xml", NULL);
g_free(common_appdata);
#else
filename = g_build_filename(SYSCONFDIR, "purple", "prefs.xml", NULL);
#endif
purple_debug_info("prefs", "Reading %s\n", filename);
if (!g_file_get_contents(filename, &contents, &length, &error)) {
purple_debug_error("prefs", "Error reading prefs: %s\n",
error->message);
g_error_free(error);
g_free(filename);
prefs_loaded = TRUE;
return FALSE;
}
}
context = g_markup_parse_context_new(&prefs_parser, 0, NULL, NULL);
if(!g_markup_parse_context_parse(context, contents, length, NULL)) {
g_markup_parse_context_free(context);
g_free(contents);
g_free(filename);
prefs_loaded = TRUE;
return FALSE;
}
if(!g_markup_parse_context_end_parse(context, NULL)) {
purple_debug_error("prefs", "Error parsing %s\n", filename);
g_markup_parse_context_free(context);
g_free(contents);
g_free(filename);
prefs_loaded = TRUE;
return FALSE;
}
purple_debug_info("prefs", "Finished reading %s\n", filename);
g_markup_parse_context_free(context);
g_free(contents);
g_free(filename);
prefs_loaded = TRUE;
return TRUE;
}
static void
prefs_save_cb(const char *name, PurplePrefType type, gconstpointer val,
gpointer user_data)
{
if(!prefs_loaded)
return;
purple_debug_misc("prefs", "%s changed, scheduling save.\n", name);
schedule_prefs_save();
}
static char *
get_path_dirname(const char *name)
{
char *c, *str;
str = g_strdup(name);
if ((c = strrchr(str, '/')) != NULL) {
*c = '\0';
if (*str == '\0') {
g_free(str);
str = g_strdup("/");
}
}
else {
g_free(str);
str = g_strdup(".");
}
return str;
}
static char *
get_path_basename(const char *name)
{
const char *c;
if ((c = strrchr(name, '/')) != NULL)
return g_strdup(c + 1);
return g_strdup(name);
}
static char *
pref_full_name(struct purple_pref *pref)
{
GString *name;
struct purple_pref *parent;
if(!pref)
return NULL;
if(pref == &prefs)
return g_strdup("/");
name = g_string_new(pref->name);
for(parent = pref->parent; parent && parent->name; parent = parent->parent) {
name = g_string_prepend_c(name, '/');
name = g_string_prepend(name, parent->name);
}
name = g_string_prepend_c(name, '/');
return g_string_free(name, FALSE);
}
static struct purple_pref *
find_pref_parent(const char *name)
{
char *parent_name = get_path_dirname(name);
struct purple_pref *ret = &prefs;
if(!purple_strequal(parent_name, "/")) {
ret = find_pref(parent_name);
}
g_free(parent_name);
return ret;
}
static void
free_pref_value(struct purple_pref *pref)
{
switch(pref->type) {
case PURPLE_PREF_BOOLEAN:
pref->value.boolean = FALSE;
break;
case PURPLE_PREF_INT:
pref->value.integer = 0;
break;
case PURPLE_PREF_STRING:
case PURPLE_PREF_PATH:
g_free(pref->value.string);
pref->value.string = NULL;
break;
case PURPLE_PREF_STRING_LIST:
case PURPLE_PREF_PATH_LIST:
{
g_list_foreach(pref->value.stringlist, (GFunc)g_free, NULL);
g_list_free(pref->value.stringlist);
} break;
case PURPLE_PREF_NONE:
break;
}
}
static struct purple_pref *
add_pref(PurplePrefType type, const char *name)
{
struct purple_pref *parent;
struct purple_pref *me;
struct purple_pref *sibling;
char *my_name;
parent = find_pref_parent(name);
if(!parent)
return NULL;
my_name = get_path_basename(name);
for(sibling = parent->first_child; sibling; sibling = sibling->sibling) {
if(purple_strequal(sibling->name, my_name)) {
g_free(my_name);
return NULL;
}
}
me = g_new0(struct purple_pref, 1);
me->type = type;
me->name = my_name;
me->parent = parent;
if(parent->first_child) {
/* blatant abuse of a for loop */
for(sibling = parent->first_child; sibling->sibling;
sibling = sibling->sibling);
sibling->sibling = me;
} else {
parent->first_child = me;
}
g_hash_table_insert(prefs_hash, g_strdup(name), (gpointer)me);
return me;
}
void
purple_prefs_add_none(const char *name)
{
add_pref(PURPLE_PREF_NONE, name);
}
void
purple_prefs_add_bool(const char *name, gboolean value)
{
struct purple_pref *pref = add_pref(PURPLE_PREF_BOOLEAN, name);
if(!pref)
return;
pref->value.boolean = value;
}
void
purple_prefs_add_int(const char *name, int value)
{
struct purple_pref *pref = add_pref(PURPLE_PREF_INT, name);
if(!pref)
return;
pref->value.integer = value;
}
void
purple_prefs_add_string(const char *name, const char *value)
{
struct purple_pref *pref;
if(value != NULL && !g_utf8_validate(value, -1, NULL)) {
purple_debug_error("prefs", "purple_prefs_add_string: Cannot store invalid UTF8 for string pref %s\n", name);
return;
}
pref = add_pref(PURPLE_PREF_STRING, name);
if(!pref)
return;
pref->value.string = g_strdup(value);
}
void
purple_prefs_add_string_list(const char *name, GList *value)
{
struct purple_pref *pref = add_pref(PURPLE_PREF_STRING_LIST, name);
GList *tmp;
if(!pref)
return;
for(tmp = value; tmp; tmp = tmp->next) {
if(tmp->data != NULL && !g_utf8_validate(tmp->data, -1, NULL)) {
purple_debug_error("prefs", "purple_prefs_add_string_list: Skipping invalid UTF8 for string list pref %s\n", name);
continue;
}
pref->value.stringlist = g_list_append(pref->value.stringlist,
g_strdup(tmp->data));
}
}
void
purple_prefs_add_path(const char *name, const char *value)
{
struct purple_pref *pref = add_pref(PURPLE_PREF_PATH, name);
if(!pref)
return;
pref->value.string = g_strdup(value);
}
void
purple_prefs_add_path_list(const char *name, GList *value)
{
struct purple_pref *pref = add_pref(PURPLE_PREF_PATH_LIST, name);
GList *tmp;
if(!pref)
return;
for(tmp = value; tmp; tmp = tmp->next)
pref->value.stringlist = g_list_append(pref->value.stringlist,
g_strdup(tmp->data));
}
static void
remove_pref(struct purple_pref *pref)
{
char *name;
GSList *l;
if(!pref)
return;
while(pref->first_child)
remove_pref(pref->first_child);
if(pref == &prefs)
return;
if(pref->parent->first_child == pref) {
pref->parent->first_child = pref->sibling;
} else {
struct purple_pref *sib = pref->parent->first_child;
while(sib && sib->sibling != pref)
sib = sib->sibling;
if(sib)
sib->sibling = pref->sibling;
}
name = pref_full_name(pref);
if (prefs_loaded)
purple_debug_info("prefs", "removing pref %s\n", name);
g_hash_table_remove(prefs_hash, name);
g_free(name);
free_pref_value(pref);
while((l = pref->callbacks) != NULL) {
pref->callbacks = pref->callbacks->next;
g_free(l->data);
g_slist_free_1(l);
}
g_free(pref->name);
g_free(pref);
}
void
purple_prefs_remove(const char *name)
{
struct purple_pref *pref = find_pref(name);
if(!pref)
return;
remove_pref(pref);
}
void
purple_prefs_destroy()
{
purple_prefs_remove("/");
}
static void
do_callbacks(const char* name, struct purple_pref *pref)
{
GSList *cbs;
struct purple_pref *cb_pref;
for(cb_pref = pref; cb_pref; cb_pref = cb_pref->parent) {
for(cbs = cb_pref->callbacks; cbs; cbs = cbs->next) {
struct pref_cb *cb = cbs->data;
cb->func(name, pref->type, pref->value.generic, cb->data);
}
}
}
void
purple_prefs_trigger_callback(const char *name)
{
struct purple_pref *pref = find_pref(name);
if(!pref) {
purple_debug_error("prefs",
"purple_prefs_trigger_callback: Unknown pref %s\n", name);
return;
}
do_callbacks(name, pref);
}
void
purple_prefs_set_generic(const char *name, gpointer value)
{
struct purple_pref *pref = find_pref(name);
if(!pref) {
purple_debug_error("prefs",
"purple_prefs_set_generic: Unknown pref %s\n", name);
return;
}
pref->value.generic = value;
do_callbacks(name, pref);
}
void
purple_prefs_set_bool(const char *name, gboolean value)
{
struct purple_pref *pref = find_pref(name);
if(pref) {
if(pref->type != PURPLE_PREF_BOOLEAN) {
purple_debug_error("prefs",
"purple_prefs_set_bool: %s not a boolean pref\n", name);
return;
}
if(pref->value.boolean != value) {
pref->value.boolean = value;
do_callbacks(name, pref);
}
} else {
purple_prefs_add_bool(name, value);
}
}
void
purple_prefs_set_int(const char *name, int value)
{
struct purple_pref *pref = find_pref(name);
if(pref) {
if(pref->type != PURPLE_PREF_INT) {
purple_debug_error("prefs",
"purple_prefs_set_int: %s not an integer pref\n", name);
return;
}
if(pref->value.integer != value) {
pref->value.integer = value;
do_callbacks(name, pref);
}
} else {
purple_prefs_add_int(name, value);
}
}
void
purple_prefs_set_string(const char *name, const char *value)
{
struct purple_pref *pref = find_pref(name);
if(value != NULL && !g_utf8_validate(value, -1, NULL)) {
purple_debug_error("prefs", "purple_prefs_set_string: Cannot store invalid UTF8 for string pref %s\n", name);
return;
}
if(pref) {
if(pref->type != PURPLE_PREF_STRING && pref->type != PURPLE_PREF_PATH) {
purple_debug_error("prefs",
"purple_prefs_set_string: %s not a string pref\n", name);
return;
}
if (!purple_strequal(pref->value.string, value)) {
g_free(pref->value.string);
pref->value.string = g_strdup(value);
do_callbacks(name, pref);
}
} else {
purple_prefs_add_string(name, value);
}
}
void
purple_prefs_set_string_list(const char *name, GList *value)
{
struct purple_pref *pref = find_pref(name);
if(pref) {
GList *tmp;
if(pref->type != PURPLE_PREF_STRING_LIST) {
purple_debug_error("prefs",
"purple_prefs_set_string_list: %s not a string list pref\n",
name);
return;
}
g_list_foreach(pref->value.stringlist, (GFunc)g_free, NULL);
g_list_free(pref->value.stringlist);
pref->value.stringlist = NULL;
for(tmp = value; tmp; tmp = tmp->next) {
if(tmp->data != NULL && !g_utf8_validate(tmp->data, -1, NULL)) {
purple_debug_error("prefs", "purple_prefs_set_string_list: Skipping invalid UTF8 for string list pref %s\n", name);
continue;
}
pref->value.stringlist = g_list_prepend(pref->value.stringlist,
g_strdup(tmp->data));
}
pref->value.stringlist = g_list_reverse(pref->value.stringlist);
do_callbacks(name, pref);
} else {
purple_prefs_add_string_list(name, value);
}
}
void
purple_prefs_set_path(const char *name, const char *value)
{
struct purple_pref *pref = find_pref(name);
if(pref) {
if(pref->type != PURPLE_PREF_PATH) {
purple_debug_error("prefs",
"purple_prefs_set_path: %s not a path pref\n", name);
return;
}
if (!purple_strequal(pref->value.string, value)) {
g_free(pref->value.string);
pref->value.string = g_strdup(value);
do_callbacks(name, pref);
}
} else {
purple_prefs_add_path(name, value);
}
}
void
purple_prefs_set_path_list(const char *name, GList *value)
{
struct purple_pref *pref = find_pref(name);
if(pref) {
GList *tmp;
if(pref->type != PURPLE_PREF_PATH_LIST) {
purple_debug_error("prefs",
"purple_prefs_set_path_list: %s not a path list pref\n",
name);
return;
}
g_list_foreach(pref->value.stringlist, (GFunc)g_free, NULL);
g_list_free(pref->value.stringlist);
pref->value.stringlist = NULL;
for(tmp = value; tmp; tmp = tmp->next)
pref->value.stringlist = g_list_prepend(pref->value.stringlist,
g_strdup(tmp->data));
pref->value.stringlist = g_list_reverse(pref->value.stringlist);
do_callbacks(name, pref);
} else {
purple_prefs_add_path_list(name, value);
}
}
gboolean
purple_prefs_exists(const char *name)
{
struct purple_pref *pref = find_pref(name);
if (pref != NULL)
return TRUE;
return FALSE;
}
PurplePrefType
purple_prefs_get_type(const char *name)
{
struct purple_pref *pref = find_pref(name);
if (pref == NULL)
return PURPLE_PREF_NONE;
return (pref->type);
}
gboolean
purple_prefs_get_bool(const char *name)
{
struct purple_pref *pref = find_pref(name);
if(!pref) {
purple_debug_error("prefs",
"purple_prefs_get_bool: Unknown pref %s\n", name);
return FALSE;
} else if(pref->type != PURPLE_PREF_BOOLEAN) {
purple_debug_error("prefs",
"purple_prefs_get_bool: %s not a boolean pref\n", name);
return FALSE;
}
return pref->value.boolean;
}
int
purple_prefs_get_int(const char *name)
{
struct purple_pref *pref = find_pref(name);