diff -r 000000000000 -r d970ebf37754 wp/wp-includes/post-formats.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/post-formats.php	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,243 @@
+<?php
+/**
+ * Post format functions.
+ *
+ * @package WordPress
+ * @subpackage Post
+ */
+
+/**
+ * Retrieve the format slug for a post
+ *
+ * @since 3.1.0
+ *
+ * @param int|object $post Post ID or post object. Optional, default is the current post from the loop.
+ * @return mixed The format if successful. False otherwise.
+ */
+function get_post_format( $post = null ) {
+	if ( ! $post = get_post( $post ) )
+		return false;
+
+	if ( ! post_type_supports( $post->post_type, 'post-formats' ) )
+		return false;
+
+	$_format = get_the_terms( $post->ID, 'post_format' );
+
+	if ( empty( $_format ) )
+		return false;
+
+	$format = array_shift( $_format );
+
+	return str_replace('post-format-', '', $format->slug );
+}
+
+/**
+ * Check if a post has a particular format
+ *
+ * @since 3.1.0
+ *
+ * @uses has_term()
+ *
+ * @param string|array $format The format or formats to check.
+ * @param object|int   $post   The post to check. If not supplied, defaults to the current post if used in the loop.
+ * @return bool True if the post has the format, false otherwise.
+ */
+function has_post_format( $format, $post = null ) {
+	if ( ! is_array( $format ) )
+		$format = array( $format );
+
+	$prefixed = array();
+	foreach( $format as $single ) {
+		$prefixed[] = 'post-format-' . sanitize_key( $single );
+	}
+
+	return has_term( $prefixed, 'post_format', $post );
+}
+
+/**
+ * Assign a format to a post
+ *
+ * @since 3.1.0
+ *
+ * @param int|object $post The post for which to assign a format.
+ * @param string $format A format to assign. Use an empty string or array to remove all formats from the post.
+ * @return mixed WP_Error on error. Array of affected term IDs on success.
+ */
+function set_post_format( $post, $format ) {
+	$post = get_post( $post );
+
+	if ( empty( $post ) )
+		return new WP_Error( 'invalid_post', __( 'Invalid post' ) );
+
+	if ( ! empty( $format ) ) {
+		$format = sanitize_key( $format );
+		if ( 'standard' === $format || ! in_array( $format, get_post_format_slugs() ) )
+			$format = '';
+		else
+			$format = 'post-format-' . $format;
+	}
+
+	return wp_set_post_terms( $post->ID, $format, 'post_format' );
+}
+
+/**
+ * Returns an array of post format slugs to their translated and pretty display versions
+ *
+ * @since 3.1.0
+ *
+ * @return array The array of translated post format names.
+ */
+function get_post_format_strings() {
+	$strings = array(
+		'standard' => _x( 'Standard', 'Post format' ), // Special case. any value that evals to false will be considered standard
+		'aside'    => _x( 'Aside',    'Post format' ),
+		'chat'     => _x( 'Chat',     'Post format' ),
+		'gallery'  => _x( 'Gallery',  'Post format' ),
+		'link'     => _x( 'Link',     'Post format' ),
+		'image'    => _x( 'Image',    'Post format' ),
+		'quote'    => _x( 'Quote',    'Post format' ),
+		'status'   => _x( 'Status',   'Post format' ),
+		'video'    => _x( 'Video',    'Post format' ),
+		'audio'    => _x( 'Audio',    'Post format' ),
+	);
+	return $strings;
+}
+
+/**
+ * Retrieves an array of post format slugs.
+ *
+ * @since 3.1.0
+ *
+ * @uses get_post_format_strings()
+ *
+ * @return array The array of post format slugs.
+ */
+function get_post_format_slugs() {
+	$slugs = array_keys( get_post_format_strings() );
+	return array_combine( $slugs, $slugs );
+}
+
+/**
+ * Returns a pretty, translated version of a post format slug
+ *
+ * @since 3.1.0
+ *
+ * @uses get_post_format_strings()
+ *
+ * @param string $slug A post format slug.
+ * @return string The translated post format name.
+ */
+function get_post_format_string( $slug ) {
+	$strings = get_post_format_strings();
+	if ( !$slug )
+		return $strings['standard'];
+	else
+		return ( isset( $strings[$slug] ) ) ? $strings[$slug] : '';
+}
+
+/**
+ * Returns a link to a post format index.
+ *
+ * @since 3.1.0
+ *
+ * @param string $format The post format slug.
+ * @return string The post format term link.
+ */
+function get_post_format_link( $format ) {
+	$term = get_term_by('slug', 'post-format-' . $format, 'post_format' );
+	if ( ! $term || is_wp_error( $term ) )
+		return false;
+	return get_term_link( $term );
+}
+
+/**
+ * Filters the request to allow for the format prefix.
+ *
+ * @access private
+ * @since 3.1.0
+ */
+function _post_format_request( $qvs ) {
+	if ( ! isset( $qvs['post_format'] ) )
+		return $qvs;
+	$slugs = get_post_format_slugs();
+	if ( isset( $slugs[ $qvs['post_format'] ] ) )
+		$qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ];
+	$tax = get_taxonomy( 'post_format' );
+	if ( ! is_admin() )
+		$qvs['post_type'] = $tax->object_type;
+	return $qvs;
+}
+add_filter( 'request', '_post_format_request' );
+
+/**
+ * Filters the post format term link to remove the format prefix.
+ *
+ * @access private
+ * @since 3.1.0
+ */
+function _post_format_link( $link, $term, $taxonomy ) {
+	global $wp_rewrite;
+	if ( 'post_format' != $taxonomy )
+		return $link;
+	if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) {
+		return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link );
+	} else {
+		$link = remove_query_arg( 'post_format', $link );
+		return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link );
+	}
+}
+add_filter( 'term_link', '_post_format_link', 10, 3 );
+
+/**
+ * Remove the post format prefix from the name property of the term object created by get_term().
+ *
+ * @access private
+ * @since 3.1.0
+ */
+function _post_format_get_term( $term ) {
+	if ( isset( $term->slug ) ) {
+		$term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+	}
+	return $term;
+}
+add_filter( 'get_post_format', '_post_format_get_term' );
+
+/**
+ * Remove the post format prefix from the name property of the term objects created by get_terms().
+ *
+ * @access private
+ * @since 3.1.0
+ */
+function _post_format_get_terms( $terms, $taxonomies, $args ) {
+	if ( in_array( 'post_format', (array) $taxonomies ) ) {
+		if ( isset( $args['fields'] ) && 'names' == $args['fields'] ) {
+			foreach( $terms as $order => $name ) {
+				$terms[$order] = get_post_format_string( str_replace( 'post-format-', '', $name ) );
+			}
+		} else {
+			foreach ( (array) $terms as $order => $term ) {
+				if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) {
+					$terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+				}
+			}
+		}
+	}
+	return $terms;
+}
+add_filter( 'get_terms', '_post_format_get_terms', 10, 3 );
+
+/**
+ * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms().
+ *
+ * @access private
+ * @since 3.1.0
+ */
+function _post_format_wp_get_object_terms( $terms ) {
+	foreach ( (array) $terms as $order => $term ) {
+		if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) {
+			$terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+		}
+	}
+	return $terms;
+}
+add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' );