diff -r a4642baaf829 -r 4d4862461b8d web/wp-includes/theme.php
--- a/web/wp-includes/theme.php	Tue Feb 02 14:45:47 2010 +0000
+++ b/web/wp-includes/theme.php	Tue Feb 02 15:44:16 2010 +0000
@@ -1,1155 +1,1385 @@
-<?php
-/**
- * Theme, template, and stylesheet functions.
- *
- * @package WordPress
- * @subpackage Template
- */
-
-/**
- * Retrieve name of the current stylesheet.
- *
- * The theme name that the administrator has currently set the front end theme
- * as.
- *
- * For all extensive purposes, the template name and the stylesheet name are
- * going to be the same for most cases.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet' filter on stylesheet name.
- *
- * @return string Stylesheet name.
- */
-function get_stylesheet() {
-	return apply_filters('stylesheet', get_option('stylesheet'));
-}
-
-/**
- * Retrieve stylesheet directory path for current theme.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet_directory' filter on stylesheet directory and theme name.
- *
- * @return string Path to current theme directory.
- */
-function get_stylesheet_directory() {
-	$stylesheet = get_stylesheet();
-	$stylesheet_dir = get_theme_root() . "/$stylesheet";
-	return apply_filters('stylesheet_directory', $stylesheet_dir, $stylesheet);
-}
-
-/**
- * Retrieve stylesheet directory URI.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_stylesheet_directory_uri() {
-	$stylesheet = get_stylesheet();
-	$stylesheet_dir_uri = get_theme_root_uri() . "/$stylesheet";
-	return apply_filters('stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet);
-}
-
-/**
- * Retrieve URI of current theme stylesheet.
- *
- * The stylesheet file name is 'style.css' which is appended to {@link
- * get_stylesheet_directory_uri() stylesheet directory URI} path.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
- *
- * @return string
- */
-function get_stylesheet_uri() {
-	$stylesheet_dir_uri = get_stylesheet_directory_uri();
-	$stylesheet_uri = $stylesheet_dir_uri . "/style.css";
-	return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
-}
-
-/**
- * Retrieve localized stylesheet URI.
- *
- * The stylesheet directory for the localized stylesheet files are located, by
- * default, in the base theme directory. The name of the locale file will be the
- * locale followed by '.css'. If that does not exist, then the text direction
- * stylesheet will be checked for existence, for example 'ltr.css'.
- *
- * The theme may change the location of the stylesheet directory by either using
- * the 'stylesheet_directory_uri' filter or the 'locale_stylesheet_uri' filter.
- * If you want to change the location of the stylesheet files for the entire
- * WordPress workflow, then change the former. If you just have the locale in a
- * separate folder, then change the latter.
- *
- * @since 2.1.0
- * @uses apply_filters() Calls 'locale_stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
- *
- * @return string
- */
-function get_locale_stylesheet_uri() {
-	global $wp_locale;
-	$stylesheet_dir_uri = get_stylesheet_directory_uri();
-	$dir = get_stylesheet_directory();
-	$locale = get_locale();
-	if ( file_exists("$dir/$locale.css") )
-		$stylesheet_uri = "$stylesheet_dir_uri/$locale.css";
-	elseif ( !empty($wp_locale->text_direction) && file_exists("$dir/{$wp_locale->text_direction}.css") )
-		$stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css";
-	else
-		$stylesheet_uri = '';
-	return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
-}
-
-/**
- * Retrieve name of the current theme.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'template' filter on template option.
- *
- * @return string Template name.
- */
-function get_template() {
-	return apply_filters('template', get_option('template'));
-}
-
-/**
- * Retrieve current theme directory.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'template_directory' filter on template directory path and template name.
- *
- * @return string Template directory path.
- */
-function get_template_directory() {
-	$template = get_template();
-	$template_dir = get_theme_root() . "/$template";
-	return apply_filters('template_directory', $template_dir, $template);
-}
-
-/**
- * Retrieve theme directory URI.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'template_directory_uri' filter on template directory URI path and template name.
- *
- * @return string Template directory URI.
- */
-function get_template_directory_uri() {
-	$template = get_template();
-	$template_dir_uri = get_theme_root_uri() . "/$template";
-	return apply_filters('template_directory_uri', $template_dir_uri, $template);
-}
-
-/**
- * Retrieve theme data from parsed theme file.
- *
- * The description will have the tags filtered with the following HTML elements
- * whitelisted. The <b>'a'</b> element with the <em>href</em> and <em>title</em>
- * attributes. The <b>abbr</b> element with the <em>title</em> attribute. The
- * <b>acronym<b> element with the <em>title</em> attribute allowed. The
- * <b>code</b>, <b>em</b>, and <b>strong</b> elements also allowed.
- *
- * The style.css file must contain theme name, theme URI, and description. The
- * data can also contain author URI, author, template (parent template),
- * version, status, and finally tags. Some of these are not used by WordPress
- * administration panels, but are used by theme directory web sites which list
- * the theme.
- *
- * @since 1.5.0
- *
- * @param string $theme_file Theme file path.
- * @return array Theme data.
- */
-function get_theme_data( $theme_file ) {
-	$themes_allowed_tags = array(
-		'a' => array(
-			'href' => array(),'title' => array()
-			),
-		'abbr' => array(
-			'title' => array()
-			),
-		'acronym' => array(
-			'title' => array()
-			),
-		'code' => array(),
-		'em' => array(),
-		'strong' => array()
-	);
-
-	$theme_data = implode( '', file( $theme_file ) );
-	$theme_data = str_replace ( '\r', '\n', $theme_data );
-	if ( preg_match( '|Theme Name:(.*)$|mi', $theme_data, $theme_name ) )
-		$name = $theme = wp_kses( _cleanup_header_comment($theme_name[1]), $themes_allowed_tags );
-	else
-		$name = $theme = '';
-
-	if ( preg_match( '|Theme URI:(.*)$|mi', $theme_data, $theme_uri ) )
-		$theme_uri = esc_url( _cleanup_header_comment($theme_uri[1]) );
-	else
-		$theme_uri = '';
-
-	if ( preg_match( '|Description:(.*)$|mi', $theme_data, $description ) )
-		$description = wptexturize( wp_kses( _cleanup_header_comment($description[1]), $themes_allowed_tags ) );
-	else
-		$description = '';
-
-	if ( preg_match( '|Author URI:(.*)$|mi', $theme_data, $author_uri ) )
-		$author_uri = esc_url( _cleanup_header_comment($author_uri[1]) );
-	else
-		$author_uri = '';
-
-	if ( preg_match( '|Template:(.*)$|mi', $theme_data, $template ) )
-		$template = wp_kses( _cleanup_header_comment($template[1]), $themes_allowed_tags );
-	else
-		$template = '';
-
-	if ( preg_match( '|Version:(.*)|i', $theme_data, $version ) )
-		$version = wp_kses( _cleanup_header_comment($version[1]), $themes_allowed_tags );
-	else
-		$version = '';
-
-	if ( preg_match('|Status:(.*)|i', $theme_data, $status) )
-		$status = wp_kses( _cleanup_header_comment($status[1]), $themes_allowed_tags );
-	else
-		$status = 'publish';
-
-	if ( preg_match('|Tags:(.*)|i', $theme_data, $tags) )
-		$tags = array_map( 'trim', explode( ',', wp_kses( _cleanup_header_comment($tags[1]), array() ) ) );
-	else
-		$tags = array();
-
-	if ( preg_match( '|Author:(.*)$|mi', $theme_data, $author_name ) ) {
-		if ( empty( $author_uri ) ) {
-			$author = wp_kses( _cleanup_header_comment($author_name[1]), $themes_allowed_tags );
-		} else {
-			$author = sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', $author_uri, __( 'Visit author homepage' ), wp_kses( _cleanup_header_comment($author_name[1]), $themes_allowed_tags ) );
-		}
-	} else {
-		$author = __('Anonymous');
-	}
-
-	return array( 'Name' => $name, 'Title' => $theme, 'URI' => $theme_uri, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Status' => $status, 'Tags' => $tags );
-}
-
-/**
- * Retrieve list of themes with theme data in theme directory.
- *
- * The theme is broken, if it doesn't have a parent theme and is missing either
- * style.css and, or index.php. If the theme has a parent theme then it is
- * broken, if it is missing style.css; index.php is optional. The broken theme
- * list is saved in the {@link $wp_broken_themes} global, which is displayed on
- * the theme list in the administration panels.
- *
- * @since 1.5.0
- * @global array $wp_broken_themes Stores the broken themes.
- * @global array $wp_themes Stores the working themes.
- *
- * @return array Theme list with theme data.
- */
-function get_themes() {
-	global $wp_themes, $wp_broken_themes;
-
-	if ( isset($wp_themes) )
-		return $wp_themes;
-
-	$themes = array();
-	$wp_broken_themes = array();
-	$theme_loc = $theme_root = get_theme_root();
-	if ( '/' != WP_CONTENT_DIR ) // don't want to replace all forward slashes, see Trac #4541
-		$theme_loc = str_replace(WP_CONTENT_DIR, '', $theme_root);
-
-	// Files in wp-content/themes directory and one subdir down
-	$themes_dir = @ opendir($theme_root);
-	if ( !$themes_dir )
-		return false;
-
-	while ( ($theme_dir = readdir($themes_dir)) !== false ) {
-		if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) {
-			if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' )
-				continue;
-			$stylish_dir = @ opendir($theme_root . '/' . $theme_dir);
-			$found_stylesheet = false;
-			while ( ($theme_file = readdir($stylish_dir)) !== false ) {
-				if ( $theme_file == 'style.css' ) {
-					$theme_files[] = $theme_dir . '/' . $theme_file;
-					$found_stylesheet = true;
-					break;
-				}
-			}
-			@closedir($stylish_dir);
-			if ( !$found_stylesheet ) { // look for themes in that dir
-				$subdir = "$theme_root/$theme_dir";
-				$subdir_name = $theme_dir;
-				$theme_subdir = @ opendir( $subdir );
-				while ( ($theme_dir = readdir($theme_subdir)) !== false ) {
-					if ( is_dir( $subdir . '/' . $theme_dir) && is_readable($subdir . '/' . $theme_dir) ) {
-						if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' )
-							continue;
-						$stylish_dir = @ opendir($subdir . '/' . $theme_dir);
-						$found_stylesheet = false;
-						while ( ($theme_file = readdir($stylish_dir)) !== false ) {
-							if ( $theme_file == 'style.css' ) {
-								$theme_files[] = $subdir_name . '/' . $theme_dir . '/' . $theme_file;
-								$found_stylesheet = true;
-								break;
-							}
-						}
-						@closedir($stylish_dir);
-					}
-				}
-				@closedir($theme_subdir);
-				$wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
-			}
-		}
-	}
-	if ( is_dir( $theme_dir ) )
-		@closedir( $theme_dir );
-
-	if ( !$themes_dir || !$theme_files )
-		return $themes;
-
-	sort($theme_files);
-
-	foreach ( (array) $theme_files as $theme_file ) {
-		if ( !is_readable("$theme_root/$theme_file") ) {
-			$wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.'));
-			continue;
-		}
-
-		$theme_data = get_theme_data("$theme_root/$theme_file");
-
-		$name        = $theme_data['Name'];
-		$title       = $theme_data['Title'];
-		$description = wptexturize($theme_data['Description']);
-		$version     = $theme_data['Version'];
-		$author      = $theme_data['Author'];
-		$template    = $theme_data['Template'];
-		$stylesheet  = dirname($theme_file);
-
-		$screenshot = false;
-		foreach ( array('png', 'gif', 'jpg', 'jpeg') as $ext ) {
-			if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) {
-				$screenshot = "screenshot.$ext";
-				break;
-			}
-		}
-
-		if ( empty($name) ) {
-			$name = dirname($theme_file);
-			$title = $name;
-		}
-
-		if ( empty($template) ) {
-			if ( file_exists(dirname("$theme_root/$theme_file/index.php")) )
-				$template = dirname($theme_file);
-			else
-				continue;
-		}
-
-		$template = trim($template);
-
-		if ( !file_exists("$theme_root/$template/index.php") ) {
-			$parent_dir = dirname(dirname($theme_file));
-			if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) {
-				$template = "$parent_dir/$template";
-			} else {
-				$wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'));
-				continue;
-			}
-		}
-
-		$stylesheet_files = array();
-		$template_files = array();
-
-		$stylesheet_dir = @ dir("$theme_root/$stylesheet");
-		if ( $stylesheet_dir ) {
-			while ( ($file = $stylesheet_dir->read()) !== false ) {
-				if ( !preg_match('|^\.+$|', $file) ) {
-					if ( preg_match('|\.css$|', $file) )
-						$stylesheet_files[] = "$theme_loc/$stylesheet/$file";
-					elseif ( preg_match('|\.php$|', $file) )
-						$template_files[] = "$theme_loc/$stylesheet/$file";
-				}
-			}
-			@ $stylesheet_dir->close();
-		}
-
-		$template_dir = @ dir("$theme_root/$template");
-		if ( $template_dir ) {
-			while ( ($file = $template_dir->read()) !== false ) {
-				if ( preg_match('|^\.+$|', $file) )
-					continue;
-				if ( preg_match('|\.php$|', $file) ) {
-					$template_files[] = "$theme_loc/$template/$file";
-				} elseif ( is_dir("$theme_root/$template/$file") ) {
-					$template_subdir = @ dir("$theme_root/$template/$file");
-					while ( ($subfile = $template_subdir->read()) !== false ) {
-						if ( preg_match('|^\.+$|', $subfile) )
-							continue;
-						if ( preg_match('|\.php$|', $subfile) )
-							$template_files[] = "$theme_loc/$template/$file/$subfile";
-					}
-					@ $template_subdir->close();
-				}
-			}
-			@ $template_dir->close();
-		}
-
-		$template_dir = dirname($template_files[0]);
-		$stylesheet_dir = dirname($stylesheet_files[0]);
-
-		if ( empty($template_dir) )
-			$template_dir = '/';
-		if ( empty($stylesheet_dir) )
-			$stylesheet_dir = '/';
-
-		// Check for theme name collision.  This occurs if a theme is copied to
-		// a new theme directory and the theme header is not updated.  Whichever
-		// theme is first keeps the name.  Subsequent themes get a suffix applied.
-		// The Default and Classic themes always trump their pretenders.
-		if ( isset($themes[$name]) ) {
-			if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) &&
-					 ('default' == $stylesheet || 'classic' == $stylesheet) ) {
-				// If another theme has claimed to be one of our default themes, move
-				// them aside.
-				$suffix = $themes[$name]['Stylesheet'];
-				$new_name = "$name/$suffix";
-				$themes[$new_name] = $themes[$name];
-				$themes[$new_name]['Name'] = $new_name;
-			} else {
-				$name = "$name/$stylesheet";
-			}
-		}
-
-		$themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot, 'Tags' => $theme_data['Tags']);
-	}
-
-	// Resolve theme dependencies.
-	$theme_names = array_keys($themes);
-
-	foreach ( (array) $theme_names as $theme_name ) {
-		$themes[$theme_name]['Parent Theme'] = '';
-		if ( $themes[$theme_name]['Stylesheet'] != $themes[$theme_name]['Template'] ) {
-			foreach ( (array) $theme_names as $parent_theme_name ) {
-				if ( ($themes[$parent_theme_name]['Stylesheet'] == $themes[$parent_theme_name]['Template']) && ($themes[$parent_theme_name]['Template'] == $themes[$theme_name]['Template']) ) {
-					$themes[$theme_name]['Parent Theme'] = $themes[$parent_theme_name]['Name'];
-					break;
-				}
-			}
-		}
-	}
-
-	$wp_themes = $themes;
-
-	return $themes;
-}
-
-/**
- * Retrieve theme data.
- *
- * @since 1.5.0
- *
- * @param string $theme Theme name.
- * @return array|null Null, if theme name does not exist. Theme data, if exists.
- */
-function get_theme($theme) {
-	$themes = get_themes();
-
-	if ( array_key_exists($theme, $themes) )
-		return $themes[$theme];
-
-	return null;
-}
-
-/**
- * Retrieve current theme display name.
- *
- * If the 'current_theme' option has already been set, then it will be returned
- * instead. If it is not set, then each theme will be iterated over until both
- * the current stylesheet and current template name.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_current_theme() {
-	if ( $theme = get_option('current_theme') )
-		return $theme;
-
-	$themes = get_themes();
-	$theme_names = array_keys($themes);
-	$current_template = get_option('template');
-	$current_stylesheet = get_option('stylesheet');
-	$current_theme = 'WordPress Default';
-
-	if ( $themes ) {
-		foreach ( (array) $theme_names as $theme_name ) {
-			if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
-					$themes[$theme_name]['Template'] == $current_template ) {
-				$current_theme = $themes[$theme_name]['Name'];
-				break;
-			}
-		}
-	}
-
-	update_option('current_theme', $current_theme);
-
-	return $current_theme;
-}
-
-/**
- * Retrieve path to themes directory.
- *
- * Does not have trailing slash.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'theme_root' filter on path.
- *
- * @return string Theme path.
- */
-function get_theme_root() {
-	return apply_filters('theme_root', WP_CONTENT_DIR . "/themes");
-}
-
-/**
- * Retrieve URI for themes directory.
- *
- * Does not have trailing slash.
- *
- * @since 1.5.0
- *
- * @return string Themes URI.
- */
-function get_theme_root_uri() {
-	return apply_filters('theme_root_uri', content_url('themes'), get_option('siteurl'));
-}
-
-/**
- * Retrieve path to file without the use of extension.
- *
- * Used to quickly retrieve the path of file without including the file
- * extension. It will also check the parent template, if the file exists, with
- * the use of {@link locate_template()}. Allows for more generic file location
- * without the use of the other get_*_template() functions.
- *
- * Can be used with include() or require() to retrieve path.
- * <code>
- * if( '' != get_query_template( '404' ) )
- *     include( get_query_template( '404' ) );
- * </code>
- * or the same can be accomplished with
- * <code>
- * if( '' != get_404_template() )
- *     include( get_404_template() );
- * </code>
- *
- * @since 1.5.0
- *
- * @param string $type Filename without extension.
- * @return string Full path to file.
- */
-function get_query_template($type) {
-	$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
-	return apply_filters("{$type}_template", locate_template(array("{$type}.php")));
-}
-
-/**
- * Retrieve path of 404 template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_404_template() {
-	return get_query_template('404');
-}
-
-/**
- * Retrieve path of archive template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_archive_template() {
-	return get_query_template('archive');
-}
-
-/**
- * Retrieve path of author template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_author_template() {
-	return get_query_template('author');
-}
-
-/**
- * Retrieve path of category template in current or parent template.
- *
- * Works by retrieving the current category ID, for example 'category-1.php' and
- * will fallback to category.php template, if the ID category file doesn't
- * exist.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'category_template' on file path of category template.
- *
- * @return string
- */
-function get_category_template() {
-	$template = locate_template(array("category-" . absint( get_query_var('cat') ) . '.php', 'category.php'));
-	return apply_filters('category_template', $template);
-}
-
-/**
- * Retrieve path of tag template in current or parent template.
- *
- * Works by retrieving the current tag name, for example 'tag-wordpress.php' and will
- * fallback to tag.php template, if the name tag file doesn't exist.
- *
- * @since 2.3.0
- * @uses apply_filters() Calls 'tag_template' on file path of tag template.
- *
- * @return string
- */
-function get_tag_template() {
-	$template = locate_template(array("tag-" . get_query_var('tag') . '.php', 'tag.php'));
-	return apply_filters('tag_template', $template);
-}
-
-/**
- * Retrieve path of taxonomy template in current or parent template.
- *
- * Retrieves the taxonomy and term, if term is available. The template is
- * prepended with 'taxonomy-' and followed by both the taxonomy string and
- * the taxonomy string followed by a dash and then followed by the term.
- *
- * The taxonomy and term template is checked and used first, if it exists.
- * Second, just the taxonomy template is checked, and then finally, taxonomy.php
- * template is used. If none of the files exist, then it will fall back on to
- * index.php.
- *
- * @since unknown (2.6.0 most likely)
- * @uses apply_filters() Calls 'taxonomy_template' filter on found path.
- *
- * @return string
- */
-function get_taxonomy_template() {
-	$taxonomy = get_query_var('taxonomy');
-	$term = get_query_var('term');
-
-	$templates = array();
-	if ( $taxonomy && $term )
-		$templates[] = "taxonomy-$taxonomy-$term.php";
-	if ( $taxonomy )
-		$templates[] = "taxonomy-$taxonomy.php";
-
-	$templates[] = "taxonomy.php";
-
-	$template = locate_template($templates);
-	return apply_filters('taxonomy_template', $template);
-}
-
-/**
- * Retrieve path of date template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_date_template() {
-	return get_query_template('date');
-}
-
-/**
- * Retrieve path of home template in current or parent template.
- *
- * Attempts to locate 'home.php' first before falling back to 'index.php'.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'home_template' on file path of home template.
- *
- * @return string
- */
-function get_home_template() {
-	$template = locate_template(array('home.php', 'index.php'));
-	return apply_filters('home_template', $template);
-}
-
-/**
- * Retrieve path of page template in current or parent template.
- *
- * First attempt is to look for the file in the '_wp_page_template' page meta
- * data. The second attempt, if the first has a file and is not empty, is to
- * look for 'page.php'.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_page_template() {
-	global $wp_query;
-
-	$id = (int) $wp_query->post->ID;
-	$template = get_post_meta($id, '_wp_page_template', true);
-
-	if ( 'default' == $template )
-		$template = '';
-
-	$templates = array();
-	if ( !empty($template) && !validate_file($template) )
-		$templates[] = $template;
-
-	$templates[] = "page.php";
-
-	return apply_filters('page_template', locate_template($templates));
-}
-
-/**
- * Retrieve path of paged template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_paged_template() {
-	return get_query_template('paged');
-}
-
-/**
- * Retrieve path of search template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_search_template() {
-	return get_query_template('search');
-}
-
-/**
- * Retrieve path of single template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_single_template() {
-	return get_query_template('single');
-}
-
-/**
- * Retrieve path of attachment template in current or parent template.
- *
- * The attachment path first checks if the first part of the mime type exists.
- * The second check is for the second part of the mime type. The last check is
- * for both types separated by an underscore. If neither are found then the file
- * 'attachment.php' is checked and returned.
- *
- * Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
- * finally 'text_plain.php'.
- *
- * @since 2.0.0
- *
- * @return string
- */
-function get_attachment_template() {
-	global $posts;
-	$type = explode('/', $posts[0]->post_mime_type);
-	if ( $template = get_query_template($type[0]) )
-		return $template;
-	elseif ( $template = get_query_template($type[1]) )
-		return $template;
-	elseif ( $template = get_query_template("$type[0]_$type[1]") )
-		return $template;
-	else
-		return get_query_template('attachment');
-}
-
-/**
- * Retrieve path of comment popup template in current or parent template.
- *
- * Checks for comment popup template in current template, if it exists or in the
- * parent template. If it doesn't exist, then it retrieves the comment-popup.php
- * file from the default theme. The default theme must then exist for it to
- * work.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'comments_popup_template' filter on path.
- *
- * @return string
- */
-function get_comments_popup_template() {
-	$template = locate_template(array("comments-popup.php"));
-	if ('' == $template)
-		$template = get_theme_root() . '/default/comments-popup.php';
-
-	return apply_filters('comments_popup_template', $template);
-}
-
-/**
- * Retrieve the name of the highest priority template file that exists.
- *
- * Searches in the STYLESHEETPATH before TEMPLATEPATH so that themes which
- * inherit from a parent theme can just overload one file.
- *
- * @since 2.7.0
- *
- * @param array $template_names Array of template files to search for in priority order.
- * @param bool $load If true the template file will be loaded if it is found.
- * @return string The template filename if one is located.
- */
-function locate_template($template_names, $load = false) {
-	if (!is_array($template_names))
-		return '';
-
-	$located = '';
-	foreach($template_names as $template_name) {
-		if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
-			$located = STYLESHEETPATH . '/' . $template_name;
-			break;
-		} else if ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
-			$located = TEMPLATEPATH . '/' . $template_name;
-			break;
-		}
-	}
-
-	if ($load && '' != $located)
-		load_template($located);
-
-	return $located;
-}
-
-/**
- * Require once the template file with WordPress environment.
- *
- * The globals are set up for the template file to ensure that the WordPress
- * environment is available from within the function. The query variables are
- * also available.
- *
- * @since 1.5.0
- *
- * @param string $_template_file Path to template file.
- */
-function load_template($_template_file) {
-	global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
-
-	if ( is_array($wp_query->query_vars) )
-		extract($wp_query->query_vars, EXTR_SKIP);
-
-	require_once($_template_file);
-}
-
-/**
- * Display localized stylesheet link element.
- *
- * @since 2.1.0
- */
-function locale_stylesheet() {
-	$stylesheet = get_locale_stylesheet_uri();
-	if ( empty($stylesheet) )
-		return;
-	echo '<link rel="stylesheet" href="' . $stylesheet . '" type="text/css" media="screen" />';
-}
-
-/**
- * Start preview theme output buffer.
- *
- * Will only preform task if the user has permissions and template and preview
- * query variables exist.
- *
- * @since 2.5.0
- */
-function preview_theme() {
-	if ( ! (isset($_GET['template']) && isset($_GET['preview'])) )
-		return;
-
-	if ( !current_user_can( 'switch_themes' ) )
-		return;
-
-	$_GET['template'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['template']);
-
-	if ( validate_file($_GET['template']) )
-		return;
-
-	add_filter( 'template', '_preview_theme_template_filter' );
-
-	if ( isset($_GET['stylesheet']) ) {
-		$_GET['stylesheet'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['stylesheet']);
-		if ( validate_file($_GET['stylesheet']) )
-			return;
-		add_filter( 'stylesheet', '_preview_theme_stylesheet_filter' );
-	}
-
-	// Prevent theme mods to current theme being used on theme being previewed
-	add_filter( 'pre_option_mods_' . get_current_theme(), create_function( '', "return array();" ) );
-
-	ob_start( 'preview_theme_ob_filter' );
-}
-add_action('setup_theme', 'preview_theme');
-
-/**
- * Private function to modify the current template when previewing a theme
- * 
- * @return string
- */
-function _preview_theme_template_filter() {
-	return isset($_GET['template']) ? $_GET['template'] : '';
-}
-
-/**
- * Private function to modify the current stylesheet when previewing a theme
- * 
- * @return string
- */
-function _preview_theme_stylesheet_filter() {
-	return isset($_GET['stylesheet']) ? $_GET['stylesheet'] : '';
-}
-
-/**
- * Callback function for ob_start() to capture all links in the theme.
- *
- * @since unknown
- * @access private
- *
- * @param string $content
- * @return string
- */
-function preview_theme_ob_filter( $content ) {
-	return preg_replace_callback( "|(<a.*?href=([\"']))(.*?)([\"'].*?>)|", 'preview_theme_ob_filter_callback', $content );
-}
-
-/**
- * Manipulates preview theme links in order to control and maintain location.
- *
- * Callback function for preg_replace_callback() to accept and filter matches.
- *
- * @since unknown
- * @access private
- *
- * @param array $matches
- * @return string
- */
-function preview_theme_ob_filter_callback( $matches ) {
-	if ( strpos($matches[4], 'onclick') !== false )
-		$matches[4] = preg_replace('#onclick=([\'"]).*?(?<!\\\)\\1#i', '', $matches[4]); //Strip out any onclicks from rest of <a>. (?<!\\\) means to ignore the '" if its escaped by \  to prevent breaking mid-attribute.
-	if (
-		( false !== strpos($matches[3], '/wp-admin/') )
-	||
-		( false !== strpos($matches[3], '://') && 0 !== strpos($matches[3], get_option('home')) )
-	||
-		( false !== strpos($matches[3], '/feed/') )
-	||
-		( false !== strpos($matches[3], '/trackback/') )
-	)
-		return $matches[1] . "#$matches[2] onclick=$matches[2]return false;" . $matches[4];
-
-	$link = add_query_arg( array('preview' => 1, 'template' => $_GET['template'], 'stylesheet' => @$_GET['stylesheet'] ), $matches[3] );
-	if ( 0 === strpos($link, 'preview=1') )
-		$link = "?$link";
-	return $matches[1] . esc_attr( $link ) . $matches[4];
-}
-
-/**
- * Switches current theme to new template and stylesheet names.
- *
- * @since unknown
- * @uses do_action() Calls 'switch_theme' action on updated theme display name.
- *
- * @param string $template Template name
- * @param string $stylesheet Stylesheet name.
- */
-function switch_theme($template, $stylesheet) {
-	update_option('template', $template);
-	update_option('stylesheet', $stylesheet);
-	delete_option('current_theme');
-	$theme = get_current_theme();
-	do_action('switch_theme', $theme);
-}
-
-/**
- * Checks that current theme files 'index.php' and 'style.css' exists.
- *
- * Does not check the 'default' theme. The 'default' theme should always exist
- * or should have another theme renamed to that template name and directory
- * path. Will switch theme to default if current theme does not validate.
- * You can use the 'validate_current_theme' filter to return FALSE to
- * disable this functionality.
- *
- * @since 1.5.0
- *
- * @return bool
- */
-function validate_current_theme() {
-	// Don't validate during an install/upgrade.
-	if ( defined('WP_INSTALLING') || !apply_filters( 'validate_current_theme', true ) )
-		return true;
-
-	if ( get_template() != 'default' && !file_exists(get_template_directory() . '/index.php') ) {
-		switch_theme('default', 'default');
-		return false;
-	}
-
-	if ( get_stylesheet() != 'default' && !file_exists(get_template_directory() . '/style.css') ) {
-		switch_theme('default', 'default');
-		return false;
-	}
-
-	return true;
-}
-
-/**
- * Retrieve theme modification value for the current theme.
- *
- * If the modification name does not exist, then the $default will be passed
- * through {@link http://php.net/sprintf sprintf()} PHP function with the first
- * string the template directory URI and the second string the stylesheet
- * directory URI.
- *
- * @since 2.1.0
- * @uses apply_filters() Calls 'theme_mod_$name' filter on the value.
- *
- * @param string $name Theme modification name.
- * @param bool|string $default
- * @return string
- */
-function get_theme_mod($name, $default = false) {
-	$theme = get_current_theme();
-
-	$mods = get_option("mods_$theme");
-
-	if ( isset($mods[$name]) )
-		return apply_filters( "theme_mod_$name", $mods[$name] );
-
-	return apply_filters( "theme_mod_$name", sprintf($default, get_template_directory_uri(), get_stylesheet_directory_uri()) );
-}
-
-/**
- * Update theme modification value for the current theme.
- *
- * @since 2.1.0
- *
- * @param string $name Theme modification name.
- * @param string $value theme modification value.
- */
-function set_theme_mod($name, $value) {
-	$theme = get_current_theme();
-
-	$mods = get_option("mods_$theme");
-
-	$mods[$name] = $value;
-
-	update_option("mods_$theme", $mods);
-	wp_cache_delete("mods_$theme", 'options');
-}
-
-/**
- * Remove theme modification name from current theme list.
- *
- * If removing the name also removes all elements, then the entire option will
- * be removed.
- *
- * @since 2.1.0
- *
- * @param string $name Theme modification name.
- * @return null
- */
-function remove_theme_mod( $name ) {
-	$theme = get_current_theme();
-
-	$mods = get_option("mods_$theme");
-
-	if ( !isset($mods[$name]) )
-		return;
-
-	unset($mods[$name]);
-
-	if ( empty($mods) )
-		return remove_theme_mods();
-
-	update_option("mods_$theme", $mods);
-	wp_cache_delete("mods_$theme", 'options');
-}
-
-/**
- * Remove theme modifications option for current theme.
- *
- * @since 2.1.0
- */
-function remove_theme_mods() {
-	$theme = get_current_theme();
-
-	delete_option("mods_$theme");
-}
-
-/**
- * Retrieve text color for custom header.
- *
- * @since 2.1.0
- * @uses HEADER_TEXTCOLOR
- *
- * @return string
- */
-function get_header_textcolor() {
-	return get_theme_mod('header_textcolor', HEADER_TEXTCOLOR);
-}
-
-/**
- * Display text color for custom header.
- *
- * @since 2.1.0
- */
-function header_textcolor() {
-	echo get_header_textcolor();
-}
-
-/**
- * Retrieve header image for custom header.
- *
- * @since 2.1.0
- * @uses HEADER_IMAGE
- *
- * @return string
- */
-function get_header_image() {
-	return get_theme_mod('header_image', HEADER_IMAGE);
-}
-
-/**
- * Display header image path.
- *
- * @since 2.1.0
- */
-function header_image() {
-	echo get_header_image();
-}
-
-/**
- * Add callbacks for image header display.
- *
- * The parameter $header_callback callback will be required to display the
- * content for the 'wp_head' action. The parameter $admin_header_callback
- * callback will be added to Custom_Image_Header class and that will be added
- * to the 'admin_menu' action.
- *
- * @since 2.1.0
- * @uses Custom_Image_Header Sets up for $admin_header_callback for administration panel display.
- *
- * @param callback $header_callback Call on 'wp_head' action.
- * @param callback $admin_header_callback Call on administration panels.
- */
-function add_custom_image_header($header_callback, $admin_header_callback) {
-	if ( ! empty($header_callback) )
-		add_action('wp_head', $header_callback);
-
-	if ( ! is_admin() )
-		return;
-	require_once(ABSPATH . 'wp-admin/custom-header.php');
-	$GLOBALS['custom_image_header'] =& new Custom_Image_Header($admin_header_callback);
-	add_action('admin_menu', array(&$GLOBALS['custom_image_header'], 'init'));
-}
-
-?>
+<?php
+/**
+ * Theme, template, and stylesheet functions.
+ *
+ * @package WordPress
+ * @subpackage Template
+ */
+
+/**
+ * Retrieve name of the current stylesheet.
+ *
+ * The theme name that the administrator has currently set the front end theme
+ * as.
+ *
+ * For all extensive purposes, the template name and the stylesheet name are
+ * going to be the same for most cases.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'stylesheet' filter on stylesheet name.
+ *
+ * @return string Stylesheet name.
+ */
+function get_stylesheet() {
+	return apply_filters('stylesheet', get_option('stylesheet'));
+}
+
+/**
+ * Retrieve stylesheet directory path for current theme.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'stylesheet_directory' filter on stylesheet directory and theme name.
+ *
+ * @return string Path to current theme directory.
+ */
+function get_stylesheet_directory() {
+	$stylesheet = get_stylesheet();
+	$theme_root = get_theme_root( $stylesheet );
+	$stylesheet_dir = "$theme_root/$stylesheet";
+
+	return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
+}
+
+/**
+ * Retrieve stylesheet directory URI.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_stylesheet_directory_uri() {
+	$stylesheet = get_stylesheet();
+	$theme_root_uri = get_theme_root_uri( $stylesheet );
+	$stylesheet_dir_uri = "$theme_root_uri/$stylesheet";
+
+	return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri );
+}
+
+/**
+ * Retrieve URI of current theme stylesheet.
+ *
+ * The stylesheet file name is 'style.css' which is appended to {@link
+ * get_stylesheet_directory_uri() stylesheet directory URI} path.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
+ *
+ * @return string
+ */
+function get_stylesheet_uri() {
+	$stylesheet_dir_uri = get_stylesheet_directory_uri();
+	$stylesheet_uri = $stylesheet_dir_uri . "/style.css";
+	return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
+}
+
+/**
+ * Retrieve localized stylesheet URI.
+ *
+ * The stylesheet directory for the localized stylesheet files are located, by
+ * default, in the base theme directory. The name of the locale file will be the
+ * locale followed by '.css'. If that does not exist, then the text direction
+ * stylesheet will be checked for existence, for example 'ltr.css'.
+ *
+ * The theme may change the location of the stylesheet directory by either using
+ * the 'stylesheet_directory_uri' filter or the 'locale_stylesheet_uri' filter.
+ * If you want to change the location of the stylesheet files for the entire
+ * WordPress workflow, then change the former. If you just have the locale in a
+ * separate folder, then change the latter.
+ *
+ * @since 2.1.0
+ * @uses apply_filters() Calls 'locale_stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
+ *
+ * @return string
+ */
+function get_locale_stylesheet_uri() {
+	global $wp_locale;
+	$stylesheet_dir_uri = get_stylesheet_directory_uri();
+	$dir = get_stylesheet_directory();
+	$locale = get_locale();
+	if ( file_exists("$dir/$locale.css") )
+		$stylesheet_uri = "$stylesheet_dir_uri/$locale.css";
+	elseif ( !empty($wp_locale->text_direction) && file_exists("$dir/{$wp_locale->text_direction}.css") )
+		$stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css";
+	else
+		$stylesheet_uri = '';
+	return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
+}
+
+/**
+ * Retrieve name of the current theme.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'template' filter on template option.
+ *
+ * @return string Template name.
+ */
+function get_template() {
+	return apply_filters('template', get_option('template'));
+}
+
+/**
+ * Retrieve current theme directory.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'template_directory' filter on template directory path and template name.
+ *
+ * @return string Template directory path.
+ */
+function get_template_directory() {
+	$template = get_template();
+	$theme_root = get_theme_root( $template );
+	$template_dir = "$theme_root/$template";
+
+	return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
+}
+
+/**
+ * Retrieve theme directory URI.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'template_directory_uri' filter on template directory URI path and template name.
+ *
+ * @return string Template directory URI.
+ */
+function get_template_directory_uri() {
+	$template = get_template();
+	$theme_root_uri = get_theme_root_uri( $template );
+	$template_dir_uri = "$theme_root_uri/$template";
+
+	return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri );
+}
+
+/**
+ * Retrieve theme data from parsed theme file.
+ *
+ * The description will have the tags filtered with the following HTML elements
+ * whitelisted. The <b>'a'</b> element with the <em>href</em> and <em>title</em>
+ * attributes. The <b>abbr</b> element with the <em>title</em> attribute. The
+ * <b>acronym<b> element with the <em>title</em> attribute allowed. The
+ * <b>code</b>, <b>em</b>, and <b>strong</b> elements also allowed.
+ *
+ * The style.css file must contain theme name, theme URI, and description. The
+ * data can also contain author URI, author, template (parent template),
+ * version, status, and finally tags. Some of these are not used by WordPress
+ * administration panels, but are used by theme directory web sites which list
+ * the theme.
+ *
+ * @since 1.5.0
+ *
+ * @param string $theme_file Theme file path.
+ * @return array Theme data.
+ */
+function get_theme_data( $theme_file ) {
+	$default_headers = array( 
+		'Name' => 'Theme Name', 
+		'URI' => 'Theme URI', 
+		'Description' => 'Description', 
+		'Author' => 'Author', 
+		'AuthorURI' => 'Author URI',
+		'Version' => 'Version', 
+		'Template' => 'Template', 
+		'Status' => 'Status', 
+		'Tags' => 'Tags'
+		);
+
+	$themes_allowed_tags = array(
+		'a' => array(
+			'href' => array(),'title' => array()
+			),
+		'abbr' => array(
+			'title' => array()
+			),
+		'acronym' => array(
+			'title' => array()
+			),
+		'code' => array(),
+		'em' => array(),
+		'strong' => array()
+	);
+
+	$theme_data = get_file_data( $theme_file, $default_headers, 'theme' );
+
+	$theme_data['Name'] = $theme_data['Title'] = wp_kses( $theme_data['Name'], $themes_allowed_tags );
+
+	$theme_data['URI'] = esc_url( $theme_data['URI'] );
+
+	$theme_data['Description'] = wptexturize( wp_kses( $theme_data['Description'], $themes_allowed_tags ) );
+
+	$theme_data['AuthorURI'] = esc_url( $theme_data['AuthorURI'] );
+
+	$theme_data['Template'] = wp_kses( $theme_data['Template'], $themes_allowed_tags );
+
+	$theme_data['Version'] = wp_kses( $theme_data['Version'], $themes_allowed_tags );
+
+	if ( $theme_data['Status'] == '' )
+		$theme_data['Status'] = 'publish';
+	else
+		$theme_data['Status'] = wp_kses( $theme_data['Status'], $themes_allowed_tags );
+
+	if ( $theme_data['Tags'] == '' )
+		$theme_data['Tags'] = array();
+	else
+		$theme_data['Tags'] = array_map( 'trim', explode( ',', wp_kses( $theme_data['Tags'], array() ) ) );
+
+	if ( $theme_data['Author'] == '' ) {
+		$theme_data['Author'] = __('Anonymous');
+	} else {
+		if ( empty( $theme_data['AuthorURI'] ) ) {
+			$theme_data['Author'] = wp_kses( $theme_data['Author'], $themes_allowed_tags );
+		} else {
+			$theme_data['Author'] = sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', $theme_data['AuthorURI'], __( 'Visit author homepage' ), wp_kses( $theme_data['Author'], $themes_allowed_tags ) );
+		}
+	}
+
+	return $theme_data;
+}
+
+/**
+ * Retrieve list of themes with theme data in theme directory.
+ *
+ * The theme is broken, if it doesn't have a parent theme and is missing either
+ * style.css and, or index.php. If the theme has a parent theme then it is
+ * broken, if it is missing style.css; index.php is optional. The broken theme
+ * list is saved in the {@link $wp_broken_themes} global, which is displayed on
+ * the theme list in the administration panels.
+ *
+ * @since 1.5.0
+ * @global array $wp_broken_themes Stores the broken themes.
+ * @global array $wp_themes Stores the working themes.
+ *
+ * @return array Theme list with theme data.
+ */
+function get_themes() {
+	global $wp_themes, $wp_broken_themes;
+
+	if ( isset($wp_themes) )
+		return $wp_themes;
+
+	/* Register the default root as a theme directory */
+	register_theme_directory( get_theme_root() );
+
+	if ( !$theme_files = search_theme_directories() )
+		return false;
+
+	asort( $theme_files );
+
+	$wp_themes = array();
+
+	foreach ( (array) $theme_files as $theme_file ) {
+		$theme_root = $theme_file['theme_root'];
+		$theme_file = $theme_file['theme_file'];
+
+		if ( !is_readable("$theme_root/$theme_file") ) {
+			$wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.'));
+			continue;
+		}
+
+		$theme_data = get_theme_data("$theme_root/$theme_file");
+
+		$name        = $theme_data['Name'];
+		$title       = $theme_data['Title'];
+		$description = wptexturize($theme_data['Description']);
+		$version     = $theme_data['Version'];
+		$author      = $theme_data['Author'];
+		$template    = $theme_data['Template'];
+		$stylesheet  = dirname($theme_file);
+
+		$screenshot = false;
+		foreach ( array('png', 'gif', 'jpg', 'jpeg') as $ext ) {
+			if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) {
+				$screenshot = "screenshot.$ext";
+				break;
+			}
+		}
+
+		if ( empty($name) ) {
+			$name = dirname($theme_file);
+			$title = $name;
+		}
+
+		if ( empty($template) ) {
+			if ( file_exists("$theme_root/$stylesheet/index.php") )
+				$template = $stylesheet;
+			else
+				continue;
+		}
+
+		$template = trim( $template );
+
+		if ( !file_exists("$theme_root/$template/index.php") ) {
+			$parent_dir = dirname(dirname($theme_file));
+			if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) {
+				$template = "$parent_dir/$template";
+				$template_directory = "$theme_root/$template";
+			} else {
+				/**
+				 * The parent theme doesn't exist in the current theme's folder or sub folder
+				 * so lets use the theme root for the parent template.
+				 */
+				if ( isset($theme_files[$template]) && file_exists( $theme_files[$template]['theme_root'] . "/$template/index.php" ) ) {
+					$template_directory = $theme_files[$template]['theme_root'] . "/$template";
+				} else {
+					$wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'));
+					continue;
+				}
+
+			}
+		} else {
+			$template_directory = trim( $theme_root . '/' . $template );
+		}
+
+		$stylesheet_files = array();
+		$template_files = array();
+
+		$stylesheet_dir = @ dir("$theme_root/$stylesheet");
+		if ( $stylesheet_dir ) {
+			while ( ($file = $stylesheet_dir->read()) !== false ) {
+				if ( !preg_match('|^\.+$|', $file) ) {
+					if ( preg_match('|\.css$|', $file) )
+						$stylesheet_files[] = "$theme_root/$stylesheet/$file";
+					elseif ( preg_match('|\.php$|', $file) )
+						$template_files[] = "$theme_root/$stylesheet/$file";
+				}
+			}
+			@ $stylesheet_dir->close();
+		}
+
+		$template_dir = @ dir("$template_directory");
+		if ( $template_dir ) {
+			while ( ($file = $template_dir->read()) !== false ) {
+				if ( preg_match('|^\.+$|', $file) )
+					continue;
+				if ( preg_match('|\.php$|', $file) ) {
+					$template_files[] = "$template_directory/$file";
+				} elseif ( is_dir("$template_directory/$file") ) {
+					$template_subdir = @ dir("$template_directory/$file");
+					if ( !$template_subdir )
+						continue;
+					while ( ($subfile = $template_subdir->read()) !== false ) {
+						if ( preg_match('|^\.+$|', $subfile) )
+							continue;
+						if ( preg_match('|\.php$|', $subfile) )
+							$template_files[] = "$template_directory/$file/$subfile";
+					}
+					@ $template_subdir->close();
+				}
+			}
+			@ $template_dir->close();
+		}
+
+		//Make unique and remove duplicates when stylesheet and template are the same i.e. most themes
+		$template_files = array_unique($template_files);
+		$stylesheet_files = array_unique($stylesheet_files);
+			
+		$template_dir = dirname($template_files[0]);
+		$stylesheet_dir = dirname($stylesheet_files[0]);
+
+		if ( empty($template_dir) )
+			$template_dir = '/';
+		if ( empty($stylesheet_dir) )
+			$stylesheet_dir = '/';
+
+		// Check for theme name collision.  This occurs if a theme is copied to
+		// a new theme directory and the theme header is not updated.  Whichever
+		// theme is first keeps the name.  Subsequent themes get a suffix applied.
+		// The Default and Classic themes always trump their pretenders.
+		if ( isset($wp_themes[$name]) ) {
+			if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) &&
+					 ('default' == $stylesheet || 'classic' == $stylesheet) ) {
+				// If another theme has claimed to be one of our default themes, move
+				// them aside.
+				$suffix = $wp_themes[$name]['Stylesheet'];
+				$new_name = "$name/$suffix";
+				$wp_themes[$new_name] = $wp_themes[$name];
+				$wp_themes[$new_name]['Name'] = $new_name;
+			} else {
+				$name = "$name/$stylesheet";
+			}
+		}
+
+		$theme_roots[$stylesheet] = str_replace( WP_CONTENT_DIR, '', $theme_root );
+		$wp_themes[$name] = array( 'Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot, 'Tags' => $theme_data['Tags'], 'Theme Root' => $theme_root, 'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), $theme_root ) );
+	}
+
+	unset($theme_files);
+
+	/* Store theme roots in the DB */
+	if ( get_site_transient( 'theme_roots' ) != $theme_roots )
+		set_site_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours
+	unset($theme_roots);
+
+	/* Resolve theme dependencies. */
+	$theme_names = array_keys( $wp_themes );
+	foreach ( (array) $theme_names as $theme_name ) {
+		$wp_themes[$theme_name]['Parent Theme'] = '';
+		if ( $wp_themes[$theme_name]['Stylesheet'] != $wp_themes[$theme_name]['Template'] ) {
+			foreach ( (array) $theme_names as $parent_theme_name ) {
+				if ( ($wp_themes[$parent_theme_name]['Stylesheet'] == $wp_themes[$parent_theme_name]['Template']) && ($wp_themes[$parent_theme_name]['Template'] == $wp_themes[$theme_name]['Template']) ) {
+					$wp_themes[$theme_name]['Parent Theme'] = $wp_themes[$parent_theme_name]['Name'];
+					break;
+				}
+			}
+		}
+	}
+
+	return $wp_themes;
+}
+
+/**
+ * Retrieve theme roots.
+ *
+ * @since 2.9.0
+ *
+ * @return array Theme roots
+ */
+function get_theme_roots() {
+	$theme_roots = get_site_transient( 'theme_roots' );
+	if ( false === $theme_roots ) {
+		get_themes();
+		$theme_roots = get_site_transient( 'theme_roots' ); // this is set in get_theme()
+	}
+	return $theme_roots;
+}
+
+/**
+ * Retrieve theme data.
+ *
+ * @since 1.5.0
+ *
+ * @param string $theme Theme name.
+ * @return array|null Null, if theme name does not exist. Theme data, if exists.
+ */
+function get_theme($theme) {
+	$themes = get_themes();
+
+	if ( array_key_exists($theme, $themes) )
+		return $themes[$theme];
+
+	return null;
+}
+
+/**
+ * Retrieve current theme display name.
+ *
+ * If the 'current_theme' option has already been set, then it will be returned
+ * instead. If it is not set, then each theme will be iterated over until both
+ * the current stylesheet and current template name.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_current_theme() {
+	if ( $theme = get_option('current_theme') )
+		return $theme;
+
+	$themes = get_themes();
+	$theme_names = array_keys($themes);
+	$current_template = get_option('template');
+	$current_stylesheet = get_option('stylesheet');
+	$current_theme = 'WordPress Default';
+
+	if ( $themes ) {
+		foreach ( (array) $theme_names as $theme_name ) {
+			if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
+					$themes[$theme_name]['Template'] == $current_template ) {
+				$current_theme = $themes[$theme_name]['Name'];
+				break;
+			}
+		}
+	}
+
+	update_option('current_theme', $current_theme);
+
+	return $current_theme;
+}
+
+/**
+ * Register a directory that contains themes.
+ *
+ * @since 2.9.0
+ *
+ * @param string $directory Either the full filesystem path to a theme folder or a folder within WP_CONTENT_DIR
+ * @return bool
+ */
+function register_theme_directory( $directory) {
+	global $wp_theme_directories;
+
+	/* If this folder does not exist, return and do not register */
+	if ( !file_exists( $directory ) )
+			/* Try prepending as the theme directory could be relative to the content directory */
+		$registered_directory = WP_CONTENT_DIR . '/' . $directory;
+	else
+		$registered_directory = $directory;
+
+	/* If this folder does not exist, return and do not register */
+	if ( !file_exists( $registered_directory ) )
+		return false;
+
+	$wp_theme_directories[] = $registered_directory;
+
+	return true;
+}
+
+/**
+ * Search all registered theme directories for complete and valid themes.
+ *
+ * @since 2.9.0
+ *
+ * @return array Valid themes found
+ */
+function search_theme_directories() {
+	global $wp_theme_directories, $wp_broken_themes;
+	if ( empty( $wp_theme_directories ) )
+		return false;
+
+	$theme_files = array();
+	$wp_broken_themes = array();
+
+	/* Loop the registered theme directories and extract all themes */
+	foreach ( (array) $wp_theme_directories as $theme_root ) {
+		$theme_loc = $theme_root;
+
+		/* We don't want to replace all forward slashes, see Trac #4541 */
+		if ( '/' != WP_CONTENT_DIR )
+			$theme_loc = str_replace(WP_CONTENT_DIR, '', $theme_root);
+
+		/* Files in the root of the current theme directory and one subdir down */
+		$themes_dir = @ opendir($theme_root);
+
+		if ( !$themes_dir )
+			return false;
+
+		while ( ($theme_dir = readdir($themes_dir)) !== false ) {
+			if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) {
+				if ( $theme_dir{0} == '.' || $theme_dir == 'CVS' )
+					continue;
+
+				$stylish_dir = @opendir($theme_root . '/' . $theme_dir);
+				$found_stylesheet = false;
+
+				while ( ($theme_file = readdir($stylish_dir)) !== false ) {
+					if ( $theme_file == 'style.css' ) {
+						$theme_files[$theme_dir] = array( 'theme_file' => $theme_dir . '/' . $theme_file, 'theme_root' => $theme_root );
+						$found_stylesheet = true;
+						break;
+					}
+				}
+				@closedir($stylish_dir);
+
+				if ( !$found_stylesheet ) { // look for themes in that dir
+					$subdir = "$theme_root/$theme_dir";
+					$subdir_name = $theme_dir;
+					$theme_subdirs = @opendir( $subdir );
+
+					$found_subdir_themes = false;
+					while ( ($theme_subdir = readdir($theme_subdirs)) !== false ) {
+						if ( is_dir( $subdir . '/' . $theme_subdir) && is_readable($subdir . '/' . $theme_subdir) ) {
+							if ( $theme_subdir{0} == '.' || $theme_subdir == 'CVS' )
+								continue;
+
+							$stylish_dir = @opendir($subdir . '/' . $theme_subdir);
+							$found_stylesheet = false;
+
+							while ( ($theme_file = readdir($stylish_dir)) !== false ) {
+								if ( $theme_file == 'style.css' ) {
+									$theme_files["$theme_dir/$theme_subdir"] = array( 'theme_file' => $subdir_name . '/' . $theme_subdir . '/' . $theme_file, 'theme_root' => $theme_root );
+									$found_stylesheet = true;
+									$found_subdir_themes = true;
+									break;
+								}
+							}
+							@closedir($stylish_dir);
+						}
+					}
+					@closedir($theme_subdir);
+					if ( !$found_subdir_themes )
+						$wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
+				}
+			}
+		}
+		if ( is_dir( $theme_dir ) )
+			@closedir( $theme_dir );
+	}
+	return $theme_files;
+}
+
+/**
+ * Retrieve path to themes directory.
+ *
+ * Does not have trailing slash.
+ *
+ * @since 1.5.0
+ * @param $stylesheet_or_template The stylesheet or template name of the theme
+ * @uses apply_filters() Calls 'theme_root' filter on path.
+ *
+ * @return string Theme path.
+ */
+function get_theme_root( $stylesheet_or_template = false ) {
+	if ($stylesheet_or_template) {
+		$theme_roots = get_theme_roots();
+
+		if ( $theme_roots[$stylesheet_or_template] )
+			$theme_root = WP_CONTENT_DIR . $theme_roots[$stylesheet_or_template];
+		else
+			$theme_root = WP_CONTENT_DIR . '/themes';
+	} else {
+		$theme_root = WP_CONTENT_DIR . '/themes';
+	}
+
+	return apply_filters( 'theme_root', $theme_root );
+}
+
+/**
+ * Retrieve URI for themes directory.
+ *
+ * Does not have trailing slash.
+ *
+ * @since 1.5.0
+ * @param $stylesheet_or_template The stylesheet or template name of the theme
+ *
+ * @return string Themes URI.
+ */
+function get_theme_root_uri( $stylesheet_or_template = false ) {
+	$theme_roots = get_theme_roots();
+
+	if ( $theme_roots[$stylesheet_or_template] )
+		$theme_root_uri = content_url( $theme_roots[$stylesheet_or_template] );
+	else
+		$theme_root_uri = content_url( 'themes' );
+
+	return apply_filters( 'theme_root_uri', $theme_root_uri, get_option('siteurl'), $stylesheet_or_template );
+}
+
+/**
+ * Retrieve path to file without the use of extension.
+ *
+ * Used to quickly retrieve the path of file without including the file
+ * extension. It will also check the parent template, if the file exists, with
+ * the use of {@link locate_template()}. Allows for more generic file location
+ * without the use of the other get_*_template() functions.
+ *
+ * Can be used with include() or require() to retrieve path.
+ * <code>
+ * if( '' != get_query_template( '404' ) )
+ *     include( get_query_template( '404' ) );
+ * </code>
+ * or the same can be accomplished with
+ * <code>
+ * if( '' != get_404_template() )
+ *     include( get_404_template() );
+ * </code>
+ *
+ * @since 1.5.0
+ *
+ * @param string $type Filename without extension.
+ * @return string Full path to file.
+ */
+function get_query_template($type) {
+	$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
+	return apply_filters("{$type}_template", locate_template(array("{$type}.php")));
+}
+
+/**
+ * Retrieve path of 404 template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_404_template() {
+	return get_query_template('404');
+}
+
+/**
+ * Retrieve path of archive template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_archive_template() {
+	return get_query_template('archive');
+}
+
+/**
+ * Retrieve path of author template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_author_template() {
+	return get_query_template('author');
+}
+
+/**
+ * Retrieve path of category template in current or parent template.
+ *
+ * Works by first retrieving the current slug for example 'category-default.php' and then
+ * trying category ID, for example 'category-1.php' and will finally fallback to category.php
+ * template, if those files don't exist.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'category_template' on file path of category template.
+ *
+ * @return string
+ */
+function get_category_template() {
+	$cat_ID = absint( get_query_var('cat') );
+	$category = get_category( $cat_ID );
+
+	$templates = array();
+
+	if ( !is_wp_error($category) )
+		$templates[] = "category-{$category->slug}.php";
+
+	$templates[] = "category-$cat_ID.php";
+	$templates[] = "category.php";
+
+	$template = locate_template($templates);
+	return apply_filters('category_template', $template);
+}
+
+/**
+ * Retrieve path of tag template in current or parent template.
+ *
+ * Works by first retrieving the current tag name, for example 'tag-wordpress.php' and then
+ * trying tag ID, for example 'tag-1.php' and will finally fallback to tag.php
+ * template, if those files don't exist.
+ *
+ * @since 2.3.0
+ * @uses apply_filters() Calls 'tag_template' on file path of tag template.
+ *
+ * @return string
+ */
+function get_tag_template() {
+	$tag_id = absint( get_query_var('tag_id') );
+	$tag_name = get_query_var('tag');
+
+	$templates = array();
+
+	if ( $tag_name )
+		$templates[] = "tag-$tag_name.php";
+	if ( $tag_id )
+		$templates[] = "tag-$tag_id.php";
+	$templates[] = "tag.php";
+
+	$template = locate_template($templates);
+	return apply_filters('tag_template', $template);
+}
+
+/**
+ * Retrieve path of taxonomy template in current or parent template.
+ *
+ * Retrieves the taxonomy and term, if term is available. The template is
+ * prepended with 'taxonomy-' and followed by both the taxonomy string and
+ * the taxonomy string followed by a dash and then followed by the term.
+ *
+ * The taxonomy and term template is checked and used first, if it exists.
+ * Second, just the taxonomy template is checked, and then finally, taxonomy.php
+ * template is used. If none of the files exist, then it will fall back on to
+ * index.php.
+ *
+ * @since unknown (2.6.0 most likely)
+ * @uses apply_filters() Calls 'taxonomy_template' filter on found path.
+ *
+ * @return string
+ */
+function get_taxonomy_template() {
+	$taxonomy = get_query_var('taxonomy');
+	$term = get_query_var('term');
+
+	$templates = array();
+	if ( $taxonomy && $term )
+		$templates[] = "taxonomy-$taxonomy-$term.php";
+	if ( $taxonomy )
+		$templates[] = "taxonomy-$taxonomy.php";
+
+	$templates[] = "taxonomy.php";
+
+	$template = locate_template($templates);
+	return apply_filters('taxonomy_template', $template);
+}
+
+/**
+ * Retrieve path of date template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_date_template() {
+	return get_query_template('date');
+}
+
+/**
+ * Retrieve path of home template in current or parent template.
+ *
+ * Attempts to locate 'home.php' first before falling back to 'index.php'.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'home_template' on file path of home template.
+ *
+ * @return string
+ */
+function get_home_template() {
+	$template = locate_template(array('home.php', 'index.php'));
+	return apply_filters('home_template', $template);
+}
+
+/**
+ * Retrieve path of page template in current or parent template.
+ *
+ * Will first look for the specifically assigned page template
+ * The will search for 'page-{slug}.php' followed by 'page-id.php'
+ * and finally 'page.php'
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_page_template() {
+	global $wp_query;
+
+	$id = (int) $wp_query->post->ID;
+	$template = get_post_meta($id, '_wp_page_template', true);
+	$pagename = get_query_var('pagename');
+
+	if ( 'default' == $template )
+		$template = '';
+
+	$templates = array();
+	if ( !empty($template) && !validate_file($template) )
+		$templates[] = $template;
+	if ( $pagename )
+		$templates[] = "page-$pagename.php";
+	if ( $id )
+		$templates[] = "page-$id.php";
+	$templates[] = "page.php";
+
+	return apply_filters('page_template', locate_template($templates));
+}
+
+/**
+ * Retrieve path of paged template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_paged_template() {
+	return get_query_template('paged');
+}
+
+/**
+ * Retrieve path of search template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_search_template() {
+	return get_query_template('search');
+}
+
+/**
+ * Retrieve path of single template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_single_template() {
+	return get_query_template('single');
+}
+
+/**
+ * Retrieve path of attachment template in current or parent template.
+ *
+ * The attachment path first checks if the first part of the mime type exists.
+ * The second check is for the second part of the mime type. The last check is
+ * for both types separated by an underscore. If neither are found then the file
+ * 'attachment.php' is checked and returned.
+ *
+ * Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
+ * finally 'text_plain.php'.
+ *
+ * @since 2.0.0
+ *
+ * @return string
+ */
+function get_attachment_template() {
+	global $posts;
+	$type = explode('/', $posts[0]->post_mime_type);
+	if ( $template = get_query_template($type[0]) )
+		return $template;
+	elseif ( $template = get_query_template($type[1]) )
+		return $template;
+	elseif ( $template = get_query_template("$type[0]_$type[1]") )
+		return $template;
+	else
+		return get_query_template('attachment');
+}
+
+/**
+ * Retrieve path of comment popup template in current or parent template.
+ *
+ * Checks for comment popup template in current template, if it exists or in the
+ * parent template. If it doesn't exist, then it retrieves the comment-popup.php
+ * file from the default theme. The default theme must then exist for it to
+ * work.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'comments_popup_template' filter on path.
+ *
+ * @return string
+ */
+function get_comments_popup_template() {
+	$template = locate_template(array("comments-popup.php"));
+	if ('' == $template)
+		$template = get_theme_root() . '/default/comments-popup.php';
+
+	return apply_filters('comments_popup_template', $template);
+}
+
+/**
+ * Retrieve the name of the highest priority template file that exists.
+ *
+ * Searches in the STYLESHEETPATH before TEMPLATEPATH so that themes which
+ * inherit from a parent theme can just overload one file.
+ *
+ * @since 2.7.0
+ *
+ * @param array $template_names Array of template files to search for in priority order.
+ * @param bool $load If true the template file will be loaded if it is found.
+ * @return string The template filename if one is located.
+ */
+function locate_template($template_names, $load = false) {
+	if (!is_array($template_names))
+		return '';
+
+	$located = '';
+	foreach($template_names as $template_name) {
+		if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
+			$located = STYLESHEETPATH . '/' . $template_name;
+			break;
+		} else if ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
+			$located = TEMPLATEPATH . '/' . $template_name;
+			break;
+		}
+	}
+
+	if ($load && '' != $located)
+		load_template($located);
+
+	return $located;
+}
+
+/**
+ * Require once the template file with WordPress environment.
+ *
+ * The globals are set up for the template file to ensure that the WordPress
+ * environment is available from within the function. The query variables are
+ * also available.
+ *
+ * @since 1.5.0
+ *
+ * @param string $_template_file Path to template file.
+ */
+function load_template($_template_file) {
+	global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
+
+	if ( is_array($wp_query->query_vars) )
+		extract($wp_query->query_vars, EXTR_SKIP);
+
+	require_once($_template_file);
+}
+
+/**
+ * Display localized stylesheet link element.
+ *
+ * @since 2.1.0
+ */
+function locale_stylesheet() {
+	$stylesheet = get_locale_stylesheet_uri();
+	if ( empty($stylesheet) )
+		return;
+	echo '<link rel="stylesheet" href="' . $stylesheet . '" type="text/css" media="screen" />';
+}
+
+/**
+ * Start preview theme output buffer.
+ *
+ * Will only preform task if the user has permissions and template and preview
+ * query variables exist.
+ *
+ * @since 2.6.0
+ */
+function preview_theme() {
+	if ( ! (isset($_GET['template']) && isset($_GET['preview'])) )
+		return;
+
+	if ( !current_user_can( 'switch_themes' ) )
+		return;
+
+	$_GET['template'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['template']);
+
+	if ( validate_file($_GET['template']) )
+		return;
+
+	add_filter( 'template', '_preview_theme_template_filter' );
+
+	if ( isset($_GET['stylesheet']) ) {
+		$_GET['stylesheet'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['stylesheet']);
+		if ( validate_file($_GET['stylesheet']) )
+			return;
+		add_filter( 'stylesheet', '_preview_theme_stylesheet_filter' );
+	}
+
+	// Prevent theme mods to current theme being used on theme being previewed
+	add_filter( 'pre_option_mods_' . get_current_theme(), create_function( '', "return array();" ) );
+
+	ob_start( 'preview_theme_ob_filter' );
+}
+add_action('setup_theme', 'preview_theme');
+
+/**
+ * Private function to modify the current template when previewing a theme
+ *
+ * @since 2.9.0
+ * @access private
+ *
+ * @return string
+ */
+function _preview_theme_template_filter() {
+	return isset($_GET['template']) ? $_GET['template'] : '';
+}
+
+/**
+ * Private function to modify the current stylesheet when previewing a theme
+ *
+ * @since 2.9.0
+ * @access private
+ *
+ * @return string
+ */
+function _preview_theme_stylesheet_filter() {
+	return isset($_GET['stylesheet']) ? $_GET['stylesheet'] : '';
+}
+
+/**
+ * Callback function for ob_start() to capture all links in the theme.
+ *
+ * @since 2.6.0
+ * @access private
+ *
+ * @param string $content
+ * @return string
+ */
+function preview_theme_ob_filter( $content ) {
+	return preg_replace_callback( "|(<a.*?href=([\"']))(.*?)([\"'].*?>)|", 'preview_theme_ob_filter_callback', $content );
+}
+
+/**
+ * Manipulates preview theme links in order to control and maintain location.
+ *
+ * Callback function for preg_replace_callback() to accept and filter matches.
+ *
+ * @since 2.6.0
+ * @access private
+ *
+ * @param array $matches
+ * @return string
+ */
+function preview_theme_ob_filter_callback( $matches ) {
+	if ( strpos($matches[4], 'onclick') !== false )
+		$matches[4] = preg_replace('#onclick=([\'"]).*?(?<!\\\)\\1#i', '', $matches[4]); //Strip out any onclicks from rest of <a>. (?<!\\\) means to ignore the '" if its escaped by \  to prevent breaking mid-attribute.
+	if (
+		( false !== strpos($matches[3], '/wp-admin/') )
+	||
+		( false !== strpos($matches[3], '://') && 0 !== strpos($matches[3], get_option('home')) )
+	||
+		( false !== strpos($matches[3], '/feed/') )
+	||
+		( false !== strpos($matches[3], '/trackback/') )
+	)
+		return $matches[1] . "#$matches[2] onclick=$matches[2]return false;" . $matches[4];
+
+	$link = add_query_arg( array('preview' => 1, 'template' => $_GET['template'], 'stylesheet' => @$_GET['stylesheet'] ), $matches[3] );
+	if ( 0 === strpos($link, 'preview=1') )
+		$link = "?$link";
+	return $matches[1] . esc_attr( $link ) . $matches[4];
+}
+
+/**
+ * Switches current theme to new template and stylesheet names.
+ *
+ * @since unknown
+ * @uses do_action() Calls 'switch_theme' action on updated theme display name.
+ *
+ * @param string $template Template name
+ * @param string $stylesheet Stylesheet name.
+ */
+function switch_theme($template, $stylesheet) {
+	update_option('template', $template);
+	update_option('stylesheet', $stylesheet);
+	delete_option('current_theme');
+	$theme = get_current_theme();
+	do_action('switch_theme', $theme);
+}
+
+/**
+ * Checks that current theme files 'index.php' and 'style.css' exists.
+ *
+ * Does not check the 'default' theme. The 'default' theme should always exist
+ * or should have another theme renamed to that template name and directory
+ * path. Will switch theme to default if current theme does not validate.
+ * You can use the 'validate_current_theme' filter to return FALSE to
+ * disable this functionality.
+ *
+ * @since 1.5.0
+ *
+ * @return bool
+ */
+function validate_current_theme() {
+	// Don't validate during an install/upgrade.
+	if ( defined('WP_INSTALLING') || !apply_filters( 'validate_current_theme', true ) )
+		return true;
+
+	if ( get_template() != 'default' && !file_exists(get_template_directory() . '/index.php') ) {
+		switch_theme('default', 'default');
+		return false;
+	}
+
+	if ( get_stylesheet() != 'default' && !file_exists(get_template_directory() . '/style.css') ) {
+		switch_theme('default', 'default');
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * Retrieve theme modification value for the current theme.
+ *
+ * If the modification name does not exist, then the $default will be passed
+ * through {@link http://php.net/sprintf sprintf()} PHP function with the first
+ * string the template directory URI and the second string the stylesheet
+ * directory URI.
+ *
+ * @since 2.1.0
+ * @uses apply_filters() Calls 'theme_mod_$name' filter on the value.
+ *
+ * @param string $name Theme modification name.
+ * @param bool|string $default
+ * @return string
+ */
+function get_theme_mod($name, $default = false) {
+	$theme = get_current_theme();
+
+	$mods = get_option("mods_$theme");
+
+	if ( isset($mods[$name]) )
+		return apply_filters( "theme_mod_$name", $mods[$name] );
+
+	return apply_filters( "theme_mod_$name", sprintf($default, get_template_directory_uri(), get_stylesheet_directory_uri()) );
+}
+
+/**
+ * Update theme modification value for the current theme.
+ *
+ * @since 2.1.0
+ *
+ * @param string $name Theme modification name.
+ * @param string $value theme modification value.
+ */
+function set_theme_mod($name, $value) {
+	$theme = get_current_theme();
+
+	$mods = get_option("mods_$theme");
+
+	$mods[$name] = $value;
+
+	update_option("mods_$theme", $mods);
+	wp_cache_delete("mods_$theme", 'options');
+}
+
+/**
+ * Remove theme modification name from current theme list.
+ *
+ * If removing the name also removes all elements, then the entire option will
+ * be removed.
+ *
+ * @since 2.1.0
+ *
+ * @param string $name Theme modification name.
+ * @return null
+ */
+function remove_theme_mod( $name ) {
+	$theme = get_current_theme();
+
+	$mods = get_option("mods_$theme");
+
+	if ( !isset($mods[$name]) )
+		return;
+
+	unset($mods[$name]);
+
+	if ( empty($mods) )
+		return remove_theme_mods();
+
+	update_option("mods_$theme", $mods);
+	wp_cache_delete("mods_$theme", 'options');
+}
+
+/**
+ * Remove theme modifications option for current theme.
+ *
+ * @since 2.1.0
+ */
+function remove_theme_mods() {
+	$theme = get_current_theme();
+
+	delete_option("mods_$theme");
+}
+
+/**
+ * Retrieve text color for custom header.
+ *
+ * @since 2.1.0
+ * @uses HEADER_TEXTCOLOR
+ *
+ * @return string
+ */
+function get_header_textcolor() {
+	return get_theme_mod('header_textcolor', HEADER_TEXTCOLOR);
+}
+
+/**
+ * Display text color for custom header.
+ *
+ * @since 2.1.0
+ */
+function header_textcolor() {
+	echo get_header_textcolor();
+}
+
+/**
+ * Retrieve header image for custom header.
+ *
+ * @since 2.1.0
+ * @uses HEADER_IMAGE
+ *
+ * @return string
+ */
+function get_header_image() {
+	return get_theme_mod('header_image', HEADER_IMAGE);
+}
+
+/**
+ * Display header image path.
+ *
+ * @since 2.1.0
+ */
+function header_image() {
+	echo get_header_image();
+}
+
+/**
+ * Add callbacks for image header display.
+ *
+ * The parameter $header_callback callback will be required to display the
+ * content for the 'wp_head' action. The parameter $admin_header_callback
+ * callback will be added to Custom_Image_Header class and that will be added
+ * to the 'admin_menu' action.
+ *
+ * @since 2.1.0
+ * @uses Custom_Image_Header Sets up for $admin_header_callback for administration panel display.
+ *
+ * @param callback $header_callback Call on 'wp_head' action.
+ * @param callback $admin_header_callback Call on administration panels.
+ */
+function add_custom_image_header($header_callback, $admin_header_callback) {
+	if ( ! empty($header_callback) )
+		add_action('wp_head', $header_callback);
+
+	if ( ! is_admin() )
+		return;
+	require_once(ABSPATH . 'wp-admin/custom-header.php');
+	$GLOBALS['custom_image_header'] =& new Custom_Image_Header($admin_header_callback);
+	add_action('admin_menu', array(&$GLOBALS['custom_image_header'], 'init'));
+}
+
+/**
+ * Allows a theme to register its support of a certain feature
+ * 
+ * Must be called in the themes functions.php file to work.
+ *
+ * @author Mark Jaquith
+ * @since 2.9
+ * @param string $feature the feature being added
+ */
+function add_theme_support( $feature ) {
+	global $_wp_theme_features;
+
+	if ( func_num_args() == 1 )
+		$_wp_theme_features[$feature] = true;
+	else
+		$_wp_theme_features[$feature] = array_slice( func_get_args(), 1 );
+}
+
+/**
+ * Checks a theme's support for a given feature
+ *
+ * @author Mark Jaquith
+ * @since 2.9
+ * @param string $feature the feature being checked
+ * @return boolean
+ */
+
+function current_theme_supports( $feature ) {
+	global $_wp_theme_features;
+
+	if ( !isset( $_wp_theme_features[$feature] ) )
+		return false;
+
+	// If no args passed then no extra checks need be performed
+	if ( func_num_args() <= 1 )
+		return true;
+
+	$args = array_slice( func_get_args(), 1 );
+
+	// @todo Allow pluggable arg checking
+	switch ( $feature ) {
+		case 'post-thumbnails':
+			// post-thumbnails can be registered for only certain content/post types by passing
+			// an array of types to add_theme_support().  If no array was passed, then
+			// any type is accepted
+			if ( true === $_wp_theme_features[$feature] )  // Registered for all types
+				return true;
+			$content_type = $args[0];
+			if ( in_array($content_type, $_wp_theme_features[$feature][0]) )
+				return true;
+			else
+				return false;
+			break;
+	}
+
+	return true;
+}
+
+/**
+ * Checks a theme's support for a given feature before loading the functions which implement it.
+ *
+ * @author Peter Westwood
+ * @since 2.9
+ * @param string $feature the feature being checked
+ * @param string $include the file containing the functions that implement the feature
+ */
+function require_if_theme_supports( $feature, $include) {
+	if ( current_theme_supports( $feature ) )
+		require ( $include );
+}
+
+?>