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document_title_separator' ) );
}
/**
* Filters the blog title for use as the feed title.
*
* @since 2.2.0
* @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @param string $title The current blog title.
* @param string $deprecated Unused.
*/
return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated );
}
/**
* Display the blog title for display of the feed title.
*
* @since 2.2.0
* @since 4.4.0 The optional `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @param string $deprecated Unused.
*/
function wp_title_rss( $deprecated = '–' ) {
if ( '–' !== $deprecated ) {
/* translators: %s: 'document_title_separator' filter name */
_deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), 'document_title_separator' ) );
}
/**
* Filters the blog title for display of the feed title.
*
* @since 2.2.0
* @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @see get_wp_title_rss()
*
* @param string $wp_title_rss The current blog title.
* @param string $deprecated Unused.
*/
echo apply_filters( 'wp_title_rss', get_wp_title_rss(), $deprecated );
}
/**
* Retrieve the current post title for the feed.
*
* @since 2.0.0
*
* @return string Current post title.
*/
function get_the_title_rss() {
$title = get_the_title();
/**
* Filters the post title for use in a feed.
*
* @since 1.2.0
*
* @param string $title The current post title.
*/
$title = apply_filters( 'the_title_rss', $title );
return $title;
}
/**
* Display the post title in the feed.
*
* @since 0.71
*/
function the_title_rss() {
echo get_the_title_rss();
}
/**
* Retrieve the post content for feeds.
*
* @since 2.9.0
* @see get_the_content()
*
* @param string $feed_type The type of feed. rss2 | atom | rss | rdf
* @return string The filtered content.
*/
function get_the_content_feed( $feed_type = null ) {
if ( ! $feed_type ) {
$feed_type = get_default_feed();
}
/** This filter is documented in site-inc/post-template.php */
$content = apply_filters( 'the_content', get_the_content() );
$content = str_replace( ']]>', ']]>', $content );
/**
* Filters 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 );
}
/**
* Display the post content for feeds.
*
* @since 2.9.0
*
* @param string $feed_type The type of feed. rss2 | atom | rss | rdf
*/
function the_content_feed( $feed_type = null ) {
echo get_the_content_feed( $feed_type );
}
/**
* Display the post excerpt for the feed.
*
* @since 0.71
*/
function the_excerpt_rss() {
$output = get_the_excerpt();
/**
* Filters the post excerpt for a feed.
*
* @since 1.2.0
*
* @param string $output The current post excerpt.
*/
echo apply_filters( 'the_excerpt_rss', $output );
}
/**
* Display the permalink to the post for use in feeds.
*
* @since 2.3.0
*/
function the_permalink_rss() {
/**
* Filters 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() ) );
}
/**
* Outputs the link to the comments for the current post in an xml safe way
*
* @since 3.0.0
* @return none
*/
function comments_link_feed() {
/**
* Filters the comments permalink for the current post.
*
* @since 3.6.0
*
* @param string $comment_permalink The current comment permalink with
* '#comments' appended.
*/
echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) );
}
/**
* Display the feed GUID for the current comment.
*
* @since 2.5.0
*
* @param int|WP_Comment $comment_id Optional comment object or id. Defaults to global comment object.
*/
function comment_guid( $comment_id = null ) {
echo esc_url( get_comment_guid( $comment_id ) );
}
/**
* Retrieve the feed GUID for the current comment.
*
* @since 2.5.0
*
* @param int|WP_Comment $comment_id Optional comment object or id. Defaults to global comment object.
* @return false|string false on failure or guid for comment on success.
*/
function get_comment_guid( $comment_id = null ) {
$comment = get_comment( $comment_id );
if ( ! is_object( $comment ) ) {
return false;
}
return get_the_guid( $comment->comment_post_ID ) . '#comment-' . $comment->comment_ID;
}
/**
* Display the link to the comments.
*
* @since 1.5.0
* @since 4.4.0 Introduced the `$comment` argument.
*
* @param int|WP_Comment $comment Optional. Comment object or id. Defaults to global comment object.
*/
function comment_link( $comment = null ) {
/**
* Filters the current comment's permalink.
*
* @since 3.6.0
*
* @see get_comment_link()
*
* @param string $comment_permalink The current comment permalink.
*/
echo esc_url( apply_filters( 'comment_link', get_comment_link( $comment ) ) );
}
/**
* Retrieve the current comment author for use in the feeds.
*
* @since 2.0.0
*
* @return string Comment Author
*/
function get_comment_author_rss() {
/**
* Filters 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() );
}
/**
* Display the current comment author in the feed.
*
* @since 1.0.0
*/
function comment_author_rss() {
echo get_comment_author_rss();
}
/**
* Display the current comment content for use in the feeds.
*
* @since 1.0.0
*/
function comment_text_rss() {
$comment_text = get_comment_text();
/**
* Filters 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 );
echo $comment_text;
}
/**
* Retrieve all of the post categories, formatted for use in feeds.
*
* All of the categories for the current post in the feed loop, will be
* retrieved and have feed markup added, so that they can easily be added to the
* RSS2, Atom, or RSS1 and RSS0.91 RDF feeds.
*
* @since 2.1.0
*
* @param string $type Optional, default is the type returned by get_default_feed().
* @return string All of the post categories for displaying in the feed.
*/
function get_the_category_rss( $type = null ) {
if ( empty( $type ) ) {
$type = get_default_feed();
}
$categories = get_the_category();
$tags = get_the_tags();
$the_list = '';
$cat_names = array();
$filter = 'rss';
if ( 'atom' == $type ) {
$filter = 'raw';
}
if ( ! empty( $categories ) ) {
foreach ( (array) $categories as $category ) {
$cat_names[] = sanitize_term_field( 'name', $category->name, $category->term_id, 'category', $filter );
}
}
if ( ! empty( $tags ) ) {
foreach ( (array) $tags as $tag ) {
$cat_names[] = sanitize_term_field( 'name', $tag->name, $tag->term_id, 'post_tag', $filter );
}
}
$cat_names = array_unique( $cat_names );
foreach ( $cat_names as $cat_name ) {
if ( 'rdf' == $type ) {
$the_list .= "\t\t\n";
} elseif ( 'atom' == $type ) {
$the_list .= sprintf( '', esc_attr( get_bloginfo_rss( 'url' ) ), esc_attr( $cat_name ) );
} else {
$the_list .= "\t\t\n";
}
}
/**
* Filters all of the post categories for display in a feed.
*
* @since 1.2.0
*
* @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 );
}
/**
* Display the post categories in the feed.
*
* @since 0.71
* @see get_the_category_rss() For better explanation.
*
* @param string $type Optional, default is the type returned by get_default_feed().
*/
function the_category_rss( $type = null ) {
echo get_the_category_rss( $type );
}
/**
* Display the HTML type based on the blog setting.
*
* The two possible values are either 'xhtml' or 'html'.
*
* @since 2.2.0
*/
function html_type_rss() {
$type = get_bloginfo( 'html_type' );
if ( strpos( $type, 'xhtml' ) !== false ) {
$type = 'xhtml';
} else {
$type = 'html';
}
echo $type;
}
/**
* Display the rss enclosure for the current post.
*
* Uses the global $post to check whether the post requires a password and if
* the user has the password for the post. If not then it will return before
* displaying.
*
* Also uses the function get_post_custom() to get the post's 'enclosure'
* metadata field and parses the value to display the enclosure(s). The
* enclosure(s) consist of enclosure HTML tag(s) with a URI and other
* attributes.
*
* @since 1.5.0
*/
function rss_enclosure() {
if ( post_password_required() ) {
return;
}
foreach ( (array) get_post_custom() as $key => $val ) {
if ( $key == 'enclosure' ) {
foreach ( (array) $val as $enc ) {
$enclosure = explode( "\n", $enc );
// only get the first element, e.g. audio/mpeg from 'audio/mpeg mpga mp2 mp3'
$t = preg_split( '/[ \t]/', trim( $enclosure[2] ) );
$type = $t[0];
/**
* Filters 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', '' . "\n" );
}
}
}
}
/**
* Display the atom enclosure for the current post.
*
* Uses the global $post to check whether the post requires a password and if
* the user has the password for the post. If not then it will return before
* displaying.
*
* Also uses the function get_post_custom() to get the post's 'enclosure'
* metadata field and parses the value to display the enclosure(s). The
* enclosure(s) consist of link HTML tag(s) with a URI and other attributes.
*
* @since 2.2.0
*/
function atom_enclosure() {
if ( post_password_required() ) {
return;
}
foreach ( (array) get_post_custom() as $key => $val ) {
if ( $key == 'enclosure' ) {
foreach ( (array) $val as $enc ) {
$enclosure = explode( "\n", $enc );
/**
* Filters 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', '' . "\n" );
}
}
}
}
/**
* Determine the type of a string of data with the data formatted.
*
* Tell whether the type is text, html, or xhtml, per RFC 4287 section 3.1.
*
* In the case of WordPress, text is defined as containing no markup,
* xhtml is defined as "well formed", and html as tag soup (i.e., the rest).
*
* Container div tags are added to xhtml values, per section 3.1.1.3.
*
* @link http://www.atomenabled.org/developers/syndication/atom-format-spec.php#rfc.section.3.1
*
* @since 2.5.0
*
* @param string $data Input string
* @return array array(type, value)
*/
function prep_atom_text_construct( $data ) {
if ( strpos( $data, '<' ) === false && strpos( $data, '&' ) === false ) {
return array( 'text', $data );
}
if ( ! function_exists( 'xml_parser_create' ) ) {
trigger_error( __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) );
return array( 'html', "" );
}
$parser = xml_parser_create();
xml_parse( $parser, '