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<title>[26902] trunk/src/wp-includes/feed.php: Inline documentation for hooks in wp-includes/feed.php.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/26902">26902</a></dd>
<dt>Author</dt> <dd>DrewAPicture</dd>
<dt>Date</dt> <dd>2014-01-04 06:21:14 +0000 (Sat, 04 Jan 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Inline documentation for hooks in wp-includes/feed.php.
Props stevenkword, kpdesign, DrewAPicture.
Fixes <a href="http://core.trac.wordpress.org/ticket/26253">#26253</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesfeedphp">trunk/src/wp-includes/feed.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesfeedphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/feed.php (26901 => 26902)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/feed.php 2014-01-04 06:17:18 UTC (rev 26901)
+++ trunk/src/wp-includes/feed.php 2014-01-04 06:21:14 UTC (rev 26902)
</span><span class="lines">@@ -19,7 +19,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 1.5.1
</span><del>- * @uses apply_filters() Calls 'get_bloginfo_rss' hook with two parameters.
</del><span class="cx"> * @see get_bloginfo() For the list of possible values to display.
</span><span class="cx"> *
</span><span class="cx"> * @param string $show See get_bloginfo() for possible values.
</span><span class="lines">@@ -27,7 +26,18 @@
</span><span class="cx"> */
</span><span class="cx"> function get_bloginfo_rss($show = '') {
</span><span class="cx"> $info = strip_tags(get_bloginfo($show));
</span><del>- return apply_filters('get_bloginfo_rss', convert_chars($info), $show);
</del><ins>+ /**
+ * Filter the bloginfo for use in RSS feeds.
+ *
+ * @since 2.2.0
+ *
+ * @see convert_chars()
+ * @see get_bloginfo()
+ *
+ * @param string $info Converted string value of the blog information.
+ * @param string $show The type of blog information to retrieve.
+ */
+ return apply_filters( 'get_bloginfo_rss', convert_chars( $info ), $show );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -40,13 +50,22 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 0.71
</span><del>- * @uses apply_filters() Calls 'bloginfo_rss' hook with two parameters.
</del><span class="cx"> * @see get_bloginfo() For the list of possible values to display.
</span><span class="cx"> *
</span><span class="cx"> * @param string $show See get_bloginfo() for possible values.
</span><span class="cx"> */
</span><span class="cx"> function bloginfo_rss($show = '') {
</span><del>- echo apply_filters('bloginfo_rss', get_bloginfo_rss($show), $show);
</del><ins>+ /**
+ * Filter the bloginfo for display in RSS feeds.
+ *
+ * @since 2.1.0
+ *
+ * @see get_bloginfo()
+ *
+ * @param string $rss_container RSS container for the blog information.
+ * @param string $show The type of blog information to retrieve.
+ */
+ echo apply_filters( 'bloginfo_rss', get_bloginfo_rss( $show ), $show );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -63,7 +82,15 @@
</span><span class="cx"> * @return string Default feed, or for example 'rss2', 'atom', etc.
</span><span class="cx"> */
</span><span class="cx"> function get_default_feed() {
</span><del>- $default_feed = apply_filters('default_feed', 'rss2');
</del><ins>+ /**
+ * Filter the default feed type.
+ *
+ * @since 2.5.0
+ *
+ * @param string $feed_type Type of default feed. Possible values include 'rss2', 'atom'.
+ * Default 'rss2'.
+ */
+ $default_feed = apply_filters( 'default_feed', 'rss2' );
</ins><span class="cx"> return 'rss' == $default_feed ? 'rss2' : $default_feed;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -73,8 +100,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.2.0
</span><del>- * @uses apply_filters() Calls 'get_wp_title_rss' hook on title.
- * @uses wp_title() See function for $sep parameter usage.
</del><span class="cx"> *
</span><span class="cx"> * @param string $sep Optional.How to separate the title. See wp_title() for more info.
</span><span class="cx"> * @return string Error message on failure or blog title on success.
</span><span class="lines">@@ -83,6 +108,14 @@
</span><span class="cx"> $title = wp_title($sep, false);
</span><span class="cx"> if ( is_wp_error( $title ) )
</span><span class="cx"> return $title->get_error_message();
</span><ins>+ /**
+ * Filter the blog title for use as the feed title.
+ *
+ * @since 2.2.0
+ *
+ * @param string $title The current blog title.
+ * @param string $sep Separator used by wp_title().
+ */
</ins><span class="cx"> $title = apply_filters( 'get_wp_title_rss', $title, $sep );
</span><span class="cx"> return $title;
</span><span class="cx"> }
</span><span class="lines">@@ -93,12 +126,21 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.2.0
</span><del>- * @uses apply_filters() Calls 'wp_title_rss' on the blog title.
</del><span class="cx"> * @see wp_title() $sep parameter usage.
</span><span class="cx"> *
</span><span class="cx"> * @param string $sep Optional.
</span><span class="cx"> */
</span><span class="cx"> function wp_title_rss( $sep = '»' ) {
</span><ins>+ /**
+ * Filter the blog title for display of the feed title.
+ *
+ * @since 2.2.0
+ *
+ * @see get_wp_title_rss()
+ *
+ * @param string $wp_title The current blog title.
+ * @param string $sep Separator used by wp_title().
+ */
</ins><span class="cx"> echo apply_filters( 'wp_title_rss', get_wp_title_rss( $sep ), $sep );
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -108,13 +150,19 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.0.0
</span><del>- * @uses apply_filters() Calls 'the_title_rss' on the post title.
</del><span class="cx"> *
</span><span class="cx"> * @return string Current post title.
</span><span class="cx"> */
</span><span class="cx"> function get_the_title_rss() {
</span><span class="cx"> $title = get_the_title();
</span><del>- $title = apply_filters('the_title_rss', $title);
</del><ins>+ /**
+ * Filter the post title for use in a feed.
+ *
+ * @since 1.2.1
+ *
+ * @param string $title The current post title.
+ */
+ $title = apply_filters( 'the_title_rss', $title );
</ins><span class="cx"> return $title;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -136,7 +184,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.9.0
</span><del>- * @uses apply_filters() Calls 'the_content_feed' on the content before processing.
</del><span class="cx"> * @see get_the_content()
</span><span class="cx"> *
</span><span class="cx"> * @param string $feed_type The type of feed. rss2 | atom | rss | rdf
</span><span class="lines">@@ -146,9 +193,19 @@
</span><span class="cx"> if ( !$feed_type )
</span><span class="cx"> $feed_type = get_default_feed();
</span><span class="cx">
</span><del>- $content = apply_filters('the_content', get_the_content());
</del><ins>+ /** This filter is documented in wp-admin/post-template.php */
+ $content = apply_filters( 'the_content', get_the_content() );
</ins><span class="cx"> $content = str_replace(']]>', ']]>', $content);
</span><del>- return apply_filters('the_content_feed', $content, $feed_type);
</del><ins>+ /**
+ * Filter the post content for use in feeds.
+ *
+ * @since 2.9.0
+ *
+ * @param string $content The current post content.
+ * @param string $feed_type Type of feed. Possible values include 'rss2', 'atom'.
+ * Default 'rss2'.
+ */
+ return apply_filters( 'the_content_feed', $content, $feed_type );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -172,11 +229,17 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 0.71
</span><del>- * @uses apply_filters() Calls 'the_excerpt_rss' hook on the excerpt.
</del><span class="cx"> */
</span><span class="cx"> function the_excerpt_rss() {
</span><span class="cx"> $output = get_the_excerpt();
</span><del>- echo apply_filters('the_excerpt_rss', $output);
</del><ins>+ /**
+ * Filter the post excerpt for a feed.
+ *
+ * @since 1.2.1
+ *
+ * @param string $output The current post excerpt.
+ */
+ echo apply_filters( 'the_excerpt_rss', $output );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -185,10 +248,16 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.3.0
</span><del>- * @uses apply_filters() Call 'the_permalink_rss' on the post permalink
</del><span class="cx"> */
</span><span class="cx"> function the_permalink_rss() {
</span><del>- echo esc_url( apply_filters('the_permalink_rss', get_permalink() ));
</del><ins>+ /**
+ * Filter the permalink to the post for use in feeds.
+ *
+ * @since 2.3.0
+ *
+ * @param string $post_permalink The current post permalink.
+ */
+ echo esc_url( apply_filters( 'the_permalink_rss', get_permalink() ) );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -198,6 +267,14 @@
</span><span class="cx"> * @return none
</span><span class="cx"> */
</span><span class="cx"> function comments_link_feed() {
</span><ins>+ /**
+ * Filter the comments permalink for the current post.
+ *
+ * @since 3.6.0
+ *
+ * @param string $comment_permalink The current comment permalink with
+ * '#comments' appended.
+ */
</ins><span class="cx"> echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) );
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -239,6 +316,15 @@
</span><span class="cx"> * @since 1.5.0
</span><span class="cx"> */
</span><span class="cx"> function comment_link() {
</span><ins>+ /**
+ * Filter the current comment's permalink.
+ *
+ * @since 3.6.0
+ *
+ * @see get_comment_link()
+ *
+ * @param string $comment_permalink The current comment permalink.
+ */
</ins><span class="cx"> echo esc_url( apply_filters( 'comment_link', get_comment_link() ) );
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -248,13 +334,21 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.0.0
</span><del>- * @uses apply_filters() Calls 'comment_author_rss' hook on comment author.
</del><span class="cx"> * @uses get_comment_author()
</span><span class="cx"> *
</span><span class="cx"> * @return string Comment Author
</span><span class="cx"> */
</span><span class="cx"> function get_comment_author_rss() {
</span><del>- return apply_filters('comment_author_rss', get_comment_author() );
</del><ins>+ /**
+ * Filter the current comment author for use in a feed.
+ *
+ * @since 1.5.0
+ *
+ * @see get_comment_author()
+ *
+ * @param string $comment_author The current comment author.
+ */
+ return apply_filters( 'comment_author_rss', get_comment_author() );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -274,12 +368,18 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 1.0.0
</span><del>- * @uses apply_filters() Calls 'comment_text_rss' filter on comment content.
</del><span class="cx"> * @uses get_comment_text()
</span><span class="cx"> */
</span><span class="cx"> function comment_text_rss() {
</span><span class="cx"> $comment_text = get_comment_text();
</span><del>- $comment_text = apply_filters('comment_text_rss', $comment_text);
</del><ins>+ /**
+ * Filter the current comment content for use in a feed.
+ *
+ * @since 1.5.0
+ *
+ * @param string $comment_text The content of the current comment.
+ */
+ $comment_text = apply_filters( 'comment_text_rss', $comment_text );
</ins><span class="cx"> echo $comment_text;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -293,7 +393,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Feed
</span><span class="cx"> * @since 2.1.0
</span><del>- * @uses apply_filters()
</del><span class="cx"> *
</span><span class="cx"> * @param string $type Optional, default is the type returned by get_default_feed().
</span><span class="cx"> * @return string All of the post categories for displaying in the feed.
</span><span class="lines">@@ -324,12 +423,22 @@
</span><span class="cx"> if ( 'rdf' == $type )
</span><span class="cx"> $the_list .= "\t\t<dc:subject><![CDATA[$cat_name]]></dc:subject>\n";
</span><span class="cx"> elseif ( 'atom' == $type )
</span><ins>+ /** This filter is documented in wp-includes/feed.php */
</ins><span class="cx"> $the_list .= sprintf( '<category scheme="%1$s" term="%2$s" />', esc_attr( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), esc_attr( $cat_name ) );
</span><span class="cx"> else
</span><span class="cx"> $the_list .= "\t\t<category><![CDATA[" . @html_entity_decode( $cat_name, ENT_COMPAT, get_option('blog_charset') ) . "]]></category>\n";
</span><span class="cx"> }
</span><span class="cx">
</span><del>- return apply_filters('the_category_rss', $the_list, $type);
</del><ins>+ /**
+ * Filter all of the post categories for display in a feed.
+ *
+ * @since 1.2.1
+ *
+ * @param string $the_list All of the RSS post categories.
+ * @param string $type Type of feed. Possible values include 'rss2', 'atom'.
+ * Default 'rss2'.
+ */
+ return apply_filters( 'the_category_rss', $the_list, $type );
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><span class="lines">@@ -379,7 +488,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Template
</span><span class="cx"> * @since 1.5.0
</span><del>- * @uses apply_filters() Calls 'rss_enclosure' hook on rss enclosure.
</del><span class="cx"> * @uses get_post_custom() To get the current post enclosure metadata.
</span><span class="cx"> */
</span><span class="cx"> function rss_enclosure() {
</span><span class="lines">@@ -395,7 +503,14 @@
</span><span class="cx"> $t = preg_split('/[ \t]/', trim($enclosure[2]) );
</span><span class="cx"> $type = $t[0];
</span><span class="cx">
</span><del>- echo apply_filters('rss_enclosure', '<enclosure url="' . trim(htmlspecialchars($enclosure[0])) . '" length="' . trim($enclosure[1]) . '" type="' . $type . '" />' . "\n");
</del><ins>+ /**
+ * Filter the RSS enclosure HTML link tag for the current post.
+ *
+ * @since 2.2.0
+ *
+ * @param string $html_link_tag The HTML link tag with a URI and other attributes.
+ */
+ echo apply_filters( 'rss_enclosure', '<enclosure url="' . trim( htmlspecialchars( $enclosure[0] ) ) . '" length="' . trim( $enclosure[1] ) . '" type="' . $type . '" />' . "\n" );
</ins><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="lines">@@ -415,7 +530,6 @@
</span><span class="cx"> * @package WordPress
</span><span class="cx"> * @subpackage Template
</span><span class="cx"> * @since 2.2.0
</span><del>- * @uses apply_filters() Calls 'atom_enclosure' hook on atom enclosure.
</del><span class="cx"> * @uses get_post_custom() To get the current post enclosure metadata.
</span><span class="cx"> */
</span><span class="cx"> function atom_enclosure() {
</span><span class="lines">@@ -426,7 +540,14 @@
</span><span class="cx"> if ($key == 'enclosure') {
</span><span class="cx"> foreach ( (array) $val as $enc ) {
</span><span class="cx"> $enclosure = explode("\n", $enc);
</span><del>- echo apply_filters('atom_enclosure', '<link href="' . trim(htmlspecialchars($enclosure[0])) . '" rel="enclosure" length="' . trim($enclosure[1]) . '" type="' . trim($enclosure[2]) . '" />' . "\n");
</del><ins>+ /**
+ * Filter the atom enclosure HTML link tag for the current post.
+ *
+ * @since 2.2.0
+ *
+ * @param string $html_link_tag The HTML link tag with a URI and other attributes.
+ */
+ echo apply_filters( 'atom_enclosure', '<link href="' . trim( htmlspecialchars( $enclosure[0] ) ) . '" rel="enclosure" length="' . trim( $enclosure[1] ) . '" type="' . trim( $enclosure[2] ) . '" />' . "\n" );
</ins><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="lines">@@ -488,6 +609,16 @@
</span><span class="cx"> */
</span><span class="cx"> function self_link() {
</span><span class="cx"> $host = @parse_url(home_url());
</span><ins>+ /**
+ * Filter the current feed URL.
+ *
+ * @since 3.6.0
+ *
+ * @see set_url_scheme()
+ * @see wp_unslash()
+ *
+ * @param string $feed_link The link for the feed with set URL scheme.
+ */
</ins><span class="cx"> echo esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) );
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -512,6 +643,15 @@
</span><span class="cx">
</span><span class="cx"> $content_type = ( !empty($types[$type]) ) ? $types[$type] : 'application/octet-stream';
</span><span class="cx">
</span><ins>+ /**
+ * Filter the content type for a specific feed type.
+ *
+ * @since 2.8.0
+ *
+ * @param string $content_type Content type indicating the type of data that a feed contains.
+ * @param string $type Type of feed. Possible values include 'rss2', 'atom'.
+ * Default 'rss2'.
+ */
</ins><span class="cx"> return apply_filters( 'feed_content_type', $content_type, $type );
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -540,7 +680,16 @@
</span><span class="cx"> $feed->set_file_class( 'WP_SimplePie_File' );
</span><span class="cx">
</span><span class="cx"> $feed->set_feed_url( $url );
</span><ins>+ /** This filter is documented in wp-includes/class-feed.php */
</ins><span class="cx"> $feed->set_cache_duration( apply_filters( 'wp_feed_cache_transient_lifetime', 12 * HOUR_IN_SECONDS, $url ) );
</span><ins>+ /**
+ * Fires just before processing the SimplePie feed object.
+ *
+ * @since 3.0.0
+ *
+ * @param object &$feed SimplePie feed object, passed by reference.
+ * @param mixed $url URL of feed to retrieve. If an array of URLs, the feeds are merged.
+ */
</ins><span class="cx"> do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
</span><span class="cx"> $feed->init();
</span><span class="cx"> $feed->handle_content_type();
</span></span></pre>
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