diff -r 000000000000 -r d970ebf37754 wp/wp-includes/template.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/template.php	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,445 @@
+<?php
+/**
+ * Template loading functions.
+ *
+ * @package WordPress
+ * @subpackage Template
+ */
+
+/**
+ * Retrieve path to a template
+ *
+ * Used to quickly retrieve the path of a template without including the file
+ * extension. It will also check the parent theme, if the file exists, with
+ * the use of {@link locate_template()}. Allows for more generic template location
+ * without the use of the other get_*_template() functions.
+ *
+ * @since 1.5.0
+ *
+ * @param string $type Filename without extension.
+ * @param array $templates An optional list of template candidates
+ * @return string Full path to file.
+ */
+function get_query_template( $type, $templates = array() ) {
+	$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
+
+	if ( empty( $templates ) )
+		$templates = array("{$type}.php");
+
+	$template = locate_template( $templates );
+	/**
+	 * Filter the path of the queried template by type.
+	 *
+	 * The dynamic portion of the hook name, $type, refers to the filename
+	 * -- minus the extension -- of the file to load. This hook also applies
+	 * to various types of files loaded as part of the Template Hierarchy.
+	 *
+	 * @since 1.5.2
+	 *
+	 * @param string $template Path to the template. @see locate_template()
+	 */
+	return apply_filters( "{$type}_template", $template );
+}
+
+/**
+ * Retrieve path of index template in current or parent template.
+ *
+ * @since 3.0.0
+ *
+ * @return string
+ */
+function get_index_template() {
+	return get_query_template('index');
+}
+
+/**
+ * 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() {
+	$post_types = array_filter( (array) get_query_var( 'post_type' ) );
+
+	$templates = array();
+
+	if ( count( $post_types ) == 1 ) {
+		$post_type = reset( $post_types );
+		$templates[] = "archive-{$post_type}.php";
+	}
+	$templates[] = 'archive.php';
+
+	return get_query_template( 'archive', $templates );
+}
+
+/**
+ * Retrieve path of post type archive template in current or parent template.
+ *
+ * @since 3.7.0
+ *
+ * @return string
+ */
+function get_post_type_archive_template() {
+	$post_type = get_query_var( 'post_type' );
+	if ( is_array( $post_type ) )
+		$post_type = reset( $post_type );
+
+	$obj = get_post_type_object( $post_type );
+	if ( ! $obj->has_archive )
+		return '';
+
+	return get_archive_template();
+}
+
+/**
+ * Retrieve path of author template in current or parent template.
+ *
+ * @since 1.5.0
+ *
+ * @return string
+ */
+function get_author_template() {
+	$author = get_queried_object();
+
+	$templates = array();
+
+	if ( is_a( $author, 'WP_User' ) ) {
+		$templates[] = "author-{$author->user_nicename}.php";
+		$templates[] = "author-{$author->ID}.php";
+	}
+	$templates[] = 'author.php';
+
+	return get_query_template( 'author', $templates );
+}
+
+/**
+ * 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 fall back 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() {
+	$category = get_queried_object();
+
+	$templates = array();
+
+	if ( ! empty( $category->slug ) ) {
+		$templates[] = "category-{$category->slug}.php";
+		$templates[] = "category-{$category->term_id}.php";
+	}
+	$templates[] = 'category.php';
+
+	return get_query_template( 'category', $templates );
+}
+
+/**
+ * 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 fall back 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 = get_queried_object();
+
+	$templates = array();
+
+	if ( ! empty( $tag->slug ) ) {
+		$templates[] = "tag-{$tag->slug}.php";
+		$templates[] = "tag-{$tag->term_id}.php";
+	}
+	$templates[] = 'tag.php';
+
+	return get_query_template( 'tag', $templates );
+}
+
+/**
+ * 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 2.5.0
+ * @uses apply_filters() Calls 'taxonomy_template' filter on found path.
+ *
+ * @return string
+ */
+function get_taxonomy_template() {
+	$term = get_queried_object();
+
+	$templates = array();
+
+	if ( ! empty( $term->slug ) ) {
+		$taxonomy = $term->taxonomy;
+		$templates[] = "taxonomy-$taxonomy-{$term->slug}.php";
+		$templates[] = "taxonomy-$taxonomy.php";
+	}
+	$templates[] = 'taxonomy.php';
+
+	return get_query_template( 'taxonomy', $templates );
+}
+
+/**
+ * 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.
+ *
+ * This is the template used for the page containing the blog posts.
+ *
+ * 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() {
+	$templates = array( 'home.php', 'index.php' );
+
+	return get_query_template( 'home', $templates );
+}
+
+/**
+ * Retrieve path of front-page template in current or parent template.
+ *
+ * Looks for 'front-page.php'.
+ *
+ * @since 3.0.0
+ * @uses apply_filters() Calls 'front_page_template' on file path of template.
+ *
+ * @return string
+ */
+function get_front_page_template() {
+	$templates = array('front-page.php');
+
+	return get_query_template( 'front_page', $templates );
+}
+
+/**
+ * Retrieve path of page template in current or parent template.
+ *
+ * Will first look for the specifically assigned page template.
+ * Then 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() {
+	$id = get_queried_object_id();
+	$template = get_page_template_slug();
+	$pagename = get_query_var('pagename');
+
+	if ( ! $pagename && $id ) {
+		// If a static page is set as the front page, $pagename will not be set. Retrieve it from the queried object
+		$post = get_queried_object();
+		if ( $post )
+			$pagename = $post->post_name;
+	}
+
+	$templates = array();
+	if ( $template && 0 === validate_file( $template ) )
+		$templates[] = $template;
+	if ( $pagename )
+		$templates[] = "page-$pagename.php";
+	if ( $id )
+		$templates[] = "page-$id.php";
+	$templates[] = 'page.php';
+
+	return get_query_template( 'page', $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() {
+	$object = get_queried_object();
+
+	$templates = array();
+
+	if ( ! empty( $object->post_type ) )
+		$templates[] = "single-{$object->post_type}.php";
+	$templates[] = "single.php";
+
+	return get_query_template( 'single', $templates );
+}
+
+/**
+ * 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;
+
+	if ( ! empty( $posts ) && isset( $posts[0]->post_mime_type ) ) {
+		$type = explode( '/', $posts[0]->post_mime_type );
+
+		if ( ! empty( $type ) ) {
+			if ( $template = get_query_template( $type[0] ) )
+				return $template;
+			elseif ( ! empty( $type[1] ) ) {
+				if ( $template = get_query_template( $type[1] ) )
+					return $template;
+				elseif ( $template = get_query_template( "$type[0]_$type[1]" ) )
+					return $template;
+			}
+		}
+	}
+
+	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.
+ *
+ * @since 1.5.0
+ * @uses apply_filters() Calls 'comments_popup_template' filter on path.
+ *
+ * @return string
+ */
+function get_comments_popup_template() {
+	$template = get_query_template( 'comments_popup', array( 'comments-popup.php' ) );
+
+	// Backward compat code will be removed in a future release
+	if ('' == $template)
+		$template = ABSPATH . WPINC . '/theme-compat/comments-popup.php';
+
+	return $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 string|array $template_names Template file(s) to search for, in order.
+ * @param bool $load If true the template file will be loaded if it is found.
+ * @param bool $require_once Whether to require_once or require. Default true. Has no effect if $load is false.
+ * @return string The template filename if one is located.
+ */
+function locate_template($template_names, $load = false, $require_once = true ) {
+	$located = '';
+	foreach ( (array) $template_names as $template_name ) {
+		if ( !$template_name )
+			continue;
+		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, $require_once );
+
+	return $located;
+}
+
+/**
+ * Require 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.
+ * @param bool $require_once Whether to require_once or require. Default true.
+ */
+function load_template( $_template_file, $require_once = true ) {
+	global $posts, $post, $wp_did_header, $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 );
+
+	if ( $require_once )
+		require_once( $_template_file );
+	else
+		require( $_template_file );
+}
+