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add and apply filter optimizations from FraT. fixes #3875 

git-svn-id: https://develop.svn.wordpress.org/trunk@4955 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2007-02-28 01:09:20 +00:00
parent 2ae4ad71e0
commit 0e79a6014b
1 changed files with 32 additions and 81 deletions
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113
wp-includes/plugin.php
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@ -7,79 +7,50 @@
function add_filter($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
global $wp_filter;
// check that we don't already have the same filter at the same priority
if ( isset($wp_filter[$tag]["$priority"]) ) {
foreach ( $wp_filter[$tag]["$priority"] as $filter ) {
// uncomment if we want to match function AND accepted_args
// if ( $filter == array($function, $accepted_args) ) {
if ( $filter['function'] == $function_to_add )
return true;
}
}
// So the format is wp_filter['tag']['array of priorities']['array of ['array (functions, accepted_args)]']
$wp_filter[$tag]["$priority"][] = array('function'=>$function_to_add, 'accepted_args'=>$accepted_args);
// So the format is wp_filter['tag']['array of priorities']['array of functions serialized']['array of ['array (functions, accepted_args)]']
$wp_filter[$tag][$priority][serialize($function_to_add)] = array('function' => $function_to_add, 'accepted_args' => $accepted_args);
return true;
}
function apply_filters($tag, $string) {
global $wp_filter;
$args = array();
for ( $a = 2; $a < func_num_args(); $a++ )
$args[] = func_get_arg($a);
merge_filters($tag);
if ( !isset($wp_filter[$tag]) )
return $string;
foreach ( (array) $wp_filter[$tag] as $priority => $functions ) {
if ( !is_null($functions) ) {
foreach ( (array) $functions as $function ) {
$function_name = $function['function'];
$accepted_args = $function['accepted_args'];
$the_args = $args;
array_unshift($the_args, $string);
if ( $accepted_args > 0 )
$the_args = array_slice($the_args, 0, $accepted_args);
elseif ( 0 == $accepted_args )
$the_args = NULL;
$string = call_user_func_array($function_name, $the_args);
$args = func_get_args();
do{
foreach( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_['function']) ){
$args[1] = $string;
$string = call_user_func_array($the_['function'], array_slice($args, 1, (int) $the_['accepted_args']));
}
}
}
} while ( next($wp_filter[$tag]) );
return $string;
}
function merge_filters($tag) {
global $wp_filter;
if ( isset($wp_filter['all']) ) {
foreach ( (array) $wp_filter['all'] as $priority => $functions ) {
if ( isset($wp_filter[$tag][$priority]) )
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
else
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
}
}
if ( isset($wp_filter[$tag]) )
uksort( $wp_filter[$tag], "strnatcasecmp" );
if ( isset($wp_filter['all']) )
$wp_filter[$tag] = array_merge($wp_filter['all'], (array) $wp_filter[$tag]);
if ( isset($wp_filter[$tag]) ){
reset($wp_filter[$tag]);
uksort($wp_filter[$tag], "strnatcasecmp");
}
}
function remove_filter($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
global $wp_filter;
// rebuild the list of filters
if ( isset($wp_filter[$tag]["$priority"]) ) {
$new_function_list = array();
foreach ( (array) $wp_filter[$tag]["$priority"] as $filter ) {
if ( $filter['function'] != $function_to_remove )
$new_function_list[] = $filter;
}
$wp_filter[$tag]["$priority"] = $new_function_list;
}
unset($GLOBALS['wp_filter'][$tag][$priority][serialize($function_to_remove)]);
return true;
}
@ -107,23 +78,12 @@ function do_action($tag, $arg = '') {
if ( !isset($wp_filter[$tag]) )
return;
foreach ( (array) $wp_filter[$tag] as $priority => $functions ) {
if ( !is_null($functions) ) {
foreach ( (array) $functions as $function ) {
$function_name = $function['function'];
$accepted_args = $function['accepted_args'];
do{
foreach( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_['function']) )
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
if ( $accepted_args > 0 )
$the_args = array_slice($args, 0, $accepted_args);
elseif ( $accepted_args == 0 )
$the_args = NULL;
else
$the_args = $args;
call_user_func_array($function_name, $the_args);
}
}
}
} while ( next($wp_filter[$tag]) );
if ( is_array($wp_actions) )
$wp_actions[] = $tag;
@ -151,22 +111,13 @@ function do_action_ref_array($tag, $args) {
if ( !isset($wp_filter[$tag]) )
return;
foreach ( (array) $wp_filter[$tag] as $priority => $functions ) {
if ( !is_null($functions) ) {
foreach ( (array) $functions as $function ) {
$function_name = $function['function'];
$accepted_args = $function['accepted_args'];
if ( $accepted_args > 0 )
$the_args = array_slice($args, 0, $accepted_args);
elseif ( 0 == $accepted_args )
$the_args = NULL;
else
$the_args = $args;
do{
foreach( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_['function']) )
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
} while ( next($wp_filter[$tag]) );
call_user_func_array($function_name, $the_args);
}
}
}
}
function remove_action($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {