* File: rss_parse.inc - parse an RSS or Atom feed
* return as a simple object.
*
-* Handles RSS 0.9x, RSS 2.0, RSS 1.0, and Atom 0.3
+* Handles RSS 0.9x, RSS 2.0, RSS 1.0, Atom 0.3, and Atom 1.0
*
* The lastest version of MagpieRSS can be obtained from:
* http://magpierss.sourceforge.net
* magpierss-general@lists.sourceforge.net
*
* @author Kellan Elliott-McCrea <kellan@protest.net>
-* @version 0.7a
+* @version 0.8
* @license GPL
*
*/
// define some constants
- var $_CONTENT_CONSTRUCTS = array('content', 'summary', 'info', 'title', 'tagline', 'copyright');
+ var $_ATOM_CONTENT_CONSTRUCTS = array(
+ 'content', 'summary', 'title', /* common */
+ 'info', 'tagline', 'copyright', /* Atom 0.3 */
+ 'rights', 'subtitle', /* Atom 1.0 */
+ );
+ var $_XHTML_CONTENT_CONSTRUCTS = array('body', 'div');
var $_KNOWN_ENCODINGS = array('UTF-8', 'US-ASCII', 'ISO-8859-1');
// parser variables, useless if you're not a parser, treat as private
var $stack = array(); // parser stack
var $inchannel = false;
var $initem = false;
- var $incontent = false; // if in Atom <content mode="xml"> field
+
+ var $incontent = array(); // non-empty if in namespaced XML content field
+ var $exclude_top = false; // true when Atom 1.0 type="xhtml"
+
var $intextinput = false;
var $inimage = false;
var $current_namespace = false;
-
/**
* Set up XML parser, parse source, and return populated RSS object..
*
xml_set_object( $this->parser, $this );
xml_set_element_handler($this->parser,
'feed_start_element', 'feed_end_element' );
-
- $source = preg_replace("/&(?![^ ][^ ]*;)/","&",$source);
-
+
xml_set_character_data_handler( $this->parser, 'feed_cdata' );
$status = xml_parse( $this->parser, $source );
$attrs = array_change_key_case($attrs, CASE_LOWER);
// check for a namespace, and split if found
- $ns = false;
- if ( strpos( $element, ':' ) ) {
- list($ns, $el) = split( ':', $element, 2);
- }
- if ( $ns and $ns != 'rdf' ) {
- $this->current_namespace = $ns;
- }
-
+ // Don't munge content tags
+ if ( empty($this->incontent) ) {
+ $ns = false;
+ if ( strpos( $element, ':' ) ) {
+ list($ns, $el) = split( ':', $element, 2);
+ }
+ if ( $ns and $ns != 'rdf' ) {
+ $this->current_namespace = $ns;
+ }
+ }
+
# if feed type isn't set, then this is first element of feed
# identify feed from root element
#
}
elseif ( $el == 'feed' ) {
$this->feed_type = ATOM;
- $this->feed_version = $attrs['version'];
+ if ($attrs['xmlns'] == 'http://www.w3.org/2005/Atom') { // Atom 1.0
+ $this->feed_version = '1.0';
+ }
+ else { // Atom 0.3, probably.
+ $this->feed_version = $attrs['version'];
+ }
$this->inchannel = true;
}
return;
}
- if ( $el == 'channel' )
+ // if we're inside a namespaced content construct, treat tags as text
+ if ( !empty($this->incontent) )
{
+ if ((count($this->incontent) > 1) or !$this->exclude_top) {
+ // if tags are inlined, then flatten
+ $attrs_str = join(' ',
+ array_map('map_attrs',
+ array_keys($attrs),
+ array_values($attrs) )
+ );
+
+ if (strlen($attrs_str) > 0) { $attrs_str = ' '.$attrs_str; }
+
+ $this->append_content( "<{$element}{$attrs_str}>" );
+ }
+ array_push($this->incontent, $el); // stack for parsing content XML
+ }
+
+ elseif ( $el == 'channel' ) {
$this->inchannel = true;
}
+
elseif ($el == 'item' or $el == 'entry' )
{
$this->initem = true;
$this->current_item['about'] = $attrs['rdf:about'];
}
}
-
+
// if we're in the default namespace of an RSS feed,
// record textinput or image fields
elseif (
$this->inimage = true;
}
- # handle atom content constructs
- elseif ( $this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) )
- {
- // avoid clashing w/ RSS mod_content
- if ($el == 'content' ) {
- $el = 'atom_content';
- }
-
- $this->incontent = $el;
-
-
- }
-
- // if inside an Atom content construct (e.g. content or summary) field treat tags as text
- elseif ($this->feed_type == ATOM and $this->incontent )
- {
- // if tags are inlined, then flatten
- $attrs_str = join(' ',
- array_map('map_attrs',
- array_keys($attrs),
- array_values($attrs) ) );
-
- $this->append_content( "<$element $attrs_str>" );
-
- array_unshift( $this->stack, $el );
- }
-
- // Atom support many links per containging element.
- // Magpie treats link elements of type rel='alternate'
- // as being equivalent to RSS's simple link element.
- //
- elseif ($this->feed_type == ATOM and $el == 'link' )
- {
- if ( isset($attrs['rel']) and $attrs['rel'] == 'alternate' )
- {
- $link_el = 'link';
- }
- else {
- $link_el = 'link_' . $attrs['rel'];
- }
-
- $this->append($link_el, $attrs['href']);
- }
// set stack[0] to current element
else {
- array_unshift($this->stack, $el);
- }
+ // Atom support many links per containing element.
+ // Magpie treats link elements of type rel='alternate'
+ // as being equivalent to RSS's simple link element.
+
+ $atom_link = false;
+ if ($this->feed_type == ATOM and $el == 'link') {
+ $atom_link = true;
+ if (isset($attrs['rel']) and $attrs['rel'] != 'alternate') {
+ $el = $el . "_" . $attrs['rel']; // pseudo-element names for Atom link elements
+ }
+ }
+ # handle atom content constructs
+ elseif ( $this->feed_type == ATOM and in_array($el, $this->_ATOM_CONTENT_CONSTRUCTS) )
+ {
+ // avoid clashing w/ RSS mod_content
+ if ($el == 'content' ) {
+ $el = 'atom_content';
+ }
+
+ // assume that everything accepts namespaced XML
+ // (that will pass through some non-validating feeds;
+ // but so what? this isn't a validating parser)
+ $this->incontent = array();
+ array_push($this->incontent, $el); // start a stack
+
+ if ( isset($attrs['type']) and trim(strtolower($attrs['type']))=='xhtml') {
+ $this->exclude_top = true;
+ } else {
+ $this->exclude_top = false;
+ }
+ }
+ # Handle inline XHTML body elements --CWJ
+ elseif (($this->current_namespace=='xhtml' or
+ (isset($attrs['xmlns']) and $attrs['xmlns'] == 'http://www.w3.org/1999/xhtml'))
+ and in_array($el, $this->_XHTML_CONTENT_CONSTRUCTS) )
+ {
+ $this->current_namespace = 'xhtml';
+ $this->incontent = array();
+ array_push($this->incontent, $el); // start a stack
+ $this->exclude_top = false;
+ }
+
+ array_unshift($this->stack, $el);
+ $elpath = join('_', array_reverse($this->stack));
+
+ $n = $this->element_count($elpath);
+ $this->element_count($elpath, $n+1);
+
+ if ($n > 0) {
+ array_shift($this->stack);
+ array_unshift($this->stack, $el.'#'.($n+1));
+ $elpath = join('_', array_reverse($this->stack));
+ }
+
+ // this makes the baby Jesus cry, but we can't do it in normalize()
+ // because we've made the element name for Atom links unpredictable
+ // by tacking on the relation to the end. -CWJ
+ if ($atom_link and isset($attrs['href'])) {
+ $this->append($elpath, $attrs['href']);
+ }
+
+ // add attributes
+ if (count($attrs) > 0) {
+ $this->append($elpath.'@', join(',', array_keys($attrs)));
+ foreach ($attrs as $attr => $value) {
+ $this->append($elpath.'@'.$attr, $value);
+ }
+ }
+ }
}
function feed_cdata ($p, $text) {
- if ($this->feed_type == ATOM and $this->incontent)
- {
+
+ if ($this->incontent) {
$this->append_content( $text );
}
else {
function feed_end_element ($p, $el) {
$el = strtolower($el);
-
- if ( $el == 'item' or $el == 'entry' )
+
+ if ( $this->incontent ) {
+ $opener = array_pop($this->incontent);
+
+ // Don't get bamboozled by namespace voodoo
+ if (strpos($el, ':')) { list($ns, $closer) = split(':', $el); }
+ else { $ns = false; $closer = $el; }
+
+ // Don't get bamboozled by our munging of <atom:content>, either
+ if ($this->feed_type == ATOM and $closer == 'content') {
+ $closer = 'atom_content';
+ }
+
+ // balance tags properly
+ // note: i don't think this is actually neccessary
+ if ($opener != $closer) {
+ array_push($this->incontent, $opener);
+ $this->append_content("<$el />");
+ } elseif ($this->incontent) { // are we in the content construct still?
+ if ((count($this->incontent) > 1) or !$this->exclude_top) {
+ $this->append_content("</$el>");
+ }
+ } else { // shift the opening of the content construct off the normal stack
+ array_shift( $this->stack );
+ }
+ }
+ elseif ( $el == 'item' or $el == 'entry' )
{
$this->items[] = $this->current_item;
$this->current_item = array();
$this->initem = false;
+
+ $this->current_category = 0;
}
- elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' )
+ elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' )
{
$this->intextinput = false;
}
{
$this->inimage = false;
}
- elseif ($this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) )
- {
- $this->incontent = false;
- }
elseif ($el == 'channel' or $el == 'feed' )
{
$this->inchannel = false;
}
- elseif ($this->feed_type == ATOM and $this->incontent ) {
- // balance tags properly
- // note: i don't think this is actually neccessary
- if ( $this->stack[0] == $el )
- {
- $this->append_content("</$el>");
- }
- else {
- $this->append_content("<$el />");
- }
-
- array_shift( $this->stack );
- }
else {
- array_shift( $this->stack );
+ array_shift( $this->stack );
}
+ if ( !$this->incontent ) { // Don't munge the namespace after finishing with elements in namespaced content constructs -CWJ
$this->current_namespace = false;
}
+ }
function concat (&$str1, $str2="") {
if (!isset($str1) ) {
$str1 .= $str2;
}
-
-
function append_content($text) {
- if ( $this->initem ) {
- $this->concat( $this->current_item[ $this->incontent ], $text );
+ if ( $this->initem ) {
+ if ($this->current_namespace) {
+ $this->concat( $this->current_item[$this->current_namespace][ reset($this->incontent) ], $text );
+ } else {
+ $this->concat( $this->current_item[ reset($this->incontent) ], $text );
}
- elseif ( $this->inchannel ) {
- $this->concat( $this->channel[ $this->incontent ], $text );
+ }
+ elseif ( $this->inchannel ) {
+ if ($this->current_namespace) {
+ $this->concat( $this->channel[$this->current_namespace][ reset($this->incontent) ], $text );
+ } else {
+ $this->concat( $this->channel[ reset($this->incontent) ], $text );
}
}
+ }
// smart append - field and namespace aware
function append($el, $text) {
if ( $this->current_namespace )
{
if ( $this->initem ) {
- $this->concat(
- $this->current_item[ $this->current_namespace ][ $el ], $text);
+ $this->concat(
+ $this->current_item[ $this->current_namespace ][ $el ], $text);
}
elseif ($this->inchannel) {
- $this->concat(
- $this->channel[ $this->current_namespace][ $el ], $text );
- }
+ $this->concat(
+ $this->channel[ $this->current_namespace][ $el ], $text );
+ }
elseif ($this->intextinput) {
$this->concat(
$this->textinput[ $this->current_namespace][ $el ], $text );
}
else {
if ( $this->initem ) {
- $this->concat(
- $this->current_item[ $el ], $text);
+ $this->concat(
+ $this->current_item[ $el ], $text);
}
elseif ($this->intextinput) {
$this->concat(
$this->image[ $el ], $text );
}
elseif ($this->inchannel) {
- $this->concat(
- $this->channel[ $el ], $text );
+ $this->concat(
+ $this->channel[ $el ], $text );
}
}
}
+
+ // smart count - field and namespace aware
+ function element_count ($el, $set = NULL) {
+ if (!$el) {
+ return;
+ }
+ if ( $this->current_namespace )
+ {
+ if ( $this->initem ) {
+ if (!is_null($set)) { $this->current_item[ $this->current_namespace ][ $el.'#' ] = $set; }
+ $ret = (isset($this->current_item[ $this->current_namespace ][ $el.'#' ]) ?
+ $this->current_item[ $this->current_namespace ][ $el.'#' ] : 0);
+ }
+ elseif ($this->inchannel) {
+ if (!is_null($set)) { $this->channel[ $this->current_namespace ][ $el.'#' ] = $set; }
+ $ret = (isset($this->channel[ $this->current_namespace][ $el.'#' ]) ?
+ $this->channel[ $this->current_namespace][ $el.'#' ] : 0);
+ }
+ }
+ else {
+ if ( $this->initem ) {
+ if (!is_null($set)) { $this->current_item[ $el.'#' ] = $set; }
+ $ret = (isset($this->current_item[ $el.'#' ]) ?
+ $this->current_item[ $el.'#' ] : 0);
+ }
+ elseif ($this->inchannel) {
+ if (!is_null($set)) {$this->channel[ $el.'#' ] = $set; }
+ $ret = (isset($this->channel[ $el.'#' ]) ?
+ $this->channel[ $el.'#' ] : 0);
+ }
+ }
+ return $ret;
+ }
+
+ function normalize_enclosure (&$source, $from, &$dest, $to, $i) {
+ $id_from = $this->element_id($from, $i);
+ $id_to = $this->element_id($to, $i);
+ if (isset($source["{$id_from}@"])) {
+ foreach (explode(',', $source["{$id_from}@"]) as $attr) {
+ if ($from=='link_enclosure' and $attr=='href') { // from Atom
+ $dest["{$id_to}@url"] = $source["{$id_from}@{$attr}"];
+ $dest["{$id_to}"] = $source["{$id_from}@{$attr}"];
+ }
+ elseif ($from=='enclosure' and $attr=='url') { // from RSS
+ $dest["{$id_to}@href"] = $source["{$id_from}@{$attr}"];
+ $dest["{$id_to}"] = $source["{$id_from}@{$attr}"];
+ }
+ else {
+ $dest["{$id_to}@{$attr}"] = $source["{$id_from}@{$attr}"];
+ }
+ }
+ }
+ }
+
+ function normalize_atom_person (&$source, $person, &$dest, $to, $i) {
+ $id = $this->element_id($person, $i);
+ $id_to = $this->element_id($to, $i);
+
+ // Atom 0.3 <=> Atom 1.0
+ if ($this->feed_version >= 1.0) { $used = 'uri'; $norm = 'url'; }
+ else { $used = 'url'; $norm = 'uri'; }
+
+ if (isset($source["{$id}_{$used}"])) {
+ $dest["{$id_to}_{$norm}"] = $source["{$id}_{$used}"];
+ }
+
+ // Atom to RSS 2.0 and Dublin Core
+ // RSS 2.0 person strings should be valid e-mail addresses if possible.
+ if (isset($source["{$id}_email"])) {
+ $rss_author = $source["{$id}_email"];
+ }
+ if (isset($source["{$id}_name"])) {
+ $rss_author = $source["{$id}_name"]
+ . (isset($rss_author) ? " <$rss_author>" : '');
+ }
+ if (isset($rss_author)) {
+ $source[$id] = $rss_author; // goes to top-level author or contributor
+ $dest[$id_to] = $rss_author; // goes to dc:creator or dc:contributor
+ }
+ }
+
+ // Normalize Atom 1.0 and RSS 2.0 categories to Dublin Core...
+ function normalize_category (&$source, $from, &$dest, $to, $i) {
+ $cat_id = $this->element_id($from, $i);
+ $dc_id = $this->element_id($to, $i);
+
+ // first normalize category elements: Atom 1.0 <=> RSS 2.0
+ if ( isset($source["{$cat_id}@term"]) ) { // category identifier
+ $source[$cat_id] = $source["{$cat_id}@term"];
+ } elseif ( $this->feed_type == RSS ) {
+ $source["{$cat_id}@term"] = $source[$cat_id];
+ }
+
+ if ( isset($source["{$cat_id}@scheme"]) ) { // URI to taxonomy
+ $source["{$cat_id}@domain"] = $source["{$cat_id}@scheme"];
+ } elseif ( isset($source["{$cat_id}@domain"]) ) {
+ $source["{$cat_id}@scheme"] = $source["{$cat_id}@domain"];
+ }
+
+ // Now put the identifier into dc:subject
+ $dest[$dc_id] = $source[$cat_id];
+ }
+ // ... or vice versa
+ function normalize_dc_subject (&$source, $from, &$dest, $to, $i) {
+ $dc_id = $this->element_id($from, $i);
+ $cat_id = $this->element_id($to, $i);
+
+ $dest[$cat_id] = $source[$dc_id]; // RSS 2.0
+ $dest["{$cat_id}@term"] = $source[$dc_id]; // Atom 1.0
+ }
+
+ // simplify the logic for normalize(). Makes sure that count of elements and
+ // each of multiple elements is normalized properly. If you need to mess
+ // with things like attributes or change formats or the like, pass it a
+ // callback to handle each element.
+ function normalize_element (&$source, $from, &$dest, $to, $via = NULL) {
+ if (isset($source[$from]) or isset($source["{$from}#"])) {
+ if (isset($source["{$from}#"])) {
+ $n = $source["{$from}#"];
+ $dest["{$to}#"] = $source["{$from}#"];
+ }
+ else { $n = 1; }
+
+ for ($i = 1; $i <= $n; $i++) {
+ if (isset($via)) { // custom callback for ninja attacks
+ $this->{$via}($source, $from, $dest, $to, $i);
+ }
+ else { // just make it the same
+ $from_id = $this->element_id($from, $i);
+ $to_id = $this->element_id($to, $i);
+ $dest[$to_id] = $source[$from_id];
+ }
+ }
+ }
+ }
+
function normalize () {
- // if atom populate rss fields
+ // if atom populate rss fields and normalize 0.3 and 1.0 feeds
if ( $this->is_atom() ) {
- $this->channel['description'] = $this->channel['tagline'];
- for ( $i = 0; $i < count($this->items); $i++) {
- $item = $this->items[$i];
- if ( isset($item['summary']) )
- $item['description'] = $item['summary'];
- if ( isset($item['atom_content']))
- $item['content']['encoded'] = $item['atom_content'];
-
- $atom_date = (isset($item['issued']) ) ? $item['issued'] : $item['modified'];
- if ( $atom_date ) {
- $epoch = @parse_w3cdtf($atom_date);
- if ($epoch and $epoch > 0) {
- $item['date_timestamp'] = $epoch;
+ // Atom 1.0 elements <=> Atom 0.3 elements (Thanks, o brilliant wordsmiths of the Atom 1.0 standard!)
+ if ($this->feed_version < 1.0) {
+ $this->normalize_element($this->channel, 'tagline', $this->channel, 'subtitle');
+ $this->normalize_element($this->channel, 'copyright', $this->channel, 'rights');
+ $this->normalize_element($this->channel, 'modified', $this->channel, 'updated');
+ } else {
+ $this->normalize_element($this->channel, 'subtitle', $this->channel, 'tagline');
+ $this->normalize_element($this->channel, 'rights', $this->channel, 'copyright');
+ $this->normalize_element($this->channel, 'updated', $this->channel, 'modified');
+ }
+ $this->normalize_element($this->channel, 'author', $this->channel['dc'], 'creator', 'normalize_atom_person');
+ $this->normalize_element($this->channel, 'contributor', $this->channel['dc'], 'contributor', 'normalize_atom_person');
+
+ // Atom elements to RSS elements
+ $this->normalize_element($this->channel, 'subtitle', $this->channel, 'description');
+
+ if ( isset($this->channel['logo']) ) {
+ $this->normalize_element($this->channel, 'logo', $this->image, 'url');
+ $this->normalize_element($this->channel, 'link', $this->image, 'link');
+ $this->normalize_element($this->channel, 'title', $this->image, 'title');
+ }
+
+ for ( $i = 0; $i < count($this->items); $i++) {
+ $item = $this->items[$i];
+
+ // Atom 1.0 elements <=> Atom 0.3 elements
+ if ($this->feed_version < 1.0) {
+ $this->normalize_element($item, 'modified', $item, 'updated');
+ $this->normalize_element($item, 'issued', $item, 'published');
+ } else {
+ $this->normalize_element($item, 'updated', $item, 'modified');
+ $this->normalize_element($item, 'published', $item, 'issued');
+ }
+
+ // "If an atom:entry element does not contain
+ // atom:author elements, then the atom:author elements
+ // of the contained atom:source element are considered
+ // to apply. In an Atom Feed Document, the atom:author
+ // elements of the containing atom:feed element are
+ // considered to apply to the entry if there are no
+ // atom:author elements in the locations described
+ // above." <http://atompub.org/2005/08/17/draft-ietf-atompub-format-11.html#rfc.section.4.2.1>
+ if (!isset($item["author#"])) {
+ if (isset($item["source_author#"])) { // from aggregation source
+ $source = $item;
+ $author = "source_author";
+ } elseif (isset($this->channel["author#"])) { // from containing feed
+ $source = $this->channel;
+ $author = "author";
+ }
+
+ $item["author#"] = $source["{$author}#"];
+ for ($au = 1; $au <= $item["author#"]; $au++) {
+ $id_to = $this->element_id('author', $au);
+ $id_from = $this->element_id($author, $au);
+
+ $item[$id_to] = $source[$id_from];
+ foreach (array('name', 'email', 'uri', 'url') as $what) {
+ if (isset($source["{$id_from}_{$what}"])) {
+ $item["{$id_to}_{$what}"] = $source["{$id_from}_{$what}"];
+ }
}
}
-
- $this->items[$i] = $item;
- }
+ }
+
+ // Atom elements to RSS elements
+ $this->normalize_element($item, 'author', $item['dc'], 'creator', 'normalize_atom_person');
+ $this->normalize_element($item, 'contributor', $item['dc'], 'contributor', 'normalize_atom_person');
+ $this->normalize_element($item, 'summary', $item, 'description');
+ $this->normalize_element($item, 'atom_content', $item['content'], 'encoded');
+ $this->normalize_element($item, 'link_enclosure', $item, 'enclosure', 'normalize_enclosure');
+
+ // Categories
+ if ( isset($item['category#']) ) { // Atom 1.0 categories to dc:subject and RSS 2.0 categories
+ $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category');
+ }
+ elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories
+ $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject');
+ }
+
+ // Normalized item timestamp
+ $atom_date = (isset($item['published']) ) ? $item['published'] : $item['updated'];
+ if ( $atom_date ) {
+ $epoch = @parse_w3cdtf($atom_date);
+ if ($epoch and $epoch > 0) {
+ $item['date_timestamp'] = $epoch;
+ }
+ }
+
+ $this->items[$i] = $item;
+ }
}
elseif ( $this->is_rss() ) {
- $this->channel['tagline'] = $this->channel['description'];
+ // RSS elements to Atom elements
+ $this->normalize_element($this->channel, 'description', $this->channel, 'tagline'); // Atom 0.3
+ $this->normalize_element($this->channel, 'description', $this->channel, 'subtitle'); // Atom 1.0 (yay wordsmithing!)
+ $this->normalize_element($this->image, 'url', $this->channel, 'logo');
+
for ( $i = 0; $i < count($this->items); $i++) {
$item = $this->items[$i];
- if ( isset($item['description']))
- $item['summary'] = $item['description'];
- if ( isset($item['content']['encoded'] ) )
- $item['atom_content'] = $item['content']['encoded'];
-
+
+ // RSS elements to Atom elements
+ $this->normalize_element($item, 'description', $item, 'summary');
+ $this->normalize_element($item['content'], 'encoded', $item, 'atom_content');
+ $this->normalize_element($item, 'enclosure', $item, 'link_enclosure', 'normalize_enclosure');
+
+ // Categories
+ if ( isset($item['category#']) ) { // RSS 2.0 categories to dc:subject and Atom 1.0 categories
+ $this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category');
+ }
+ elseif ( isset($item['dc']['subject#']) ) { // dc:subject to Atom 1.0 and RSS 2.0 categories
+ $this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject');
+ }
+
+ // Normalized item timestamp
if ( $this->is_rss() == '1.0' and isset($item['dc']['date']) ) {
$epoch = @parse_w3cdtf($item['dc']['date']);
if ($epoch and $epoch > 0) {
$item['date_timestamp'] = $epoch;
}
}
-
+
$this->items[$i] = $item;
}
}
$this->ERROR = $errormsg;
}
}
-
-
+
+ // magic ID function for multiple elemenets.
+ // can be called as static MagpieRSS::element_id()
+ function element_id ($el, $counter) {
+ return $el . (($counter > 1) ? '#'.$counter : '');
+ }
} // end class RSS
function map_attrs($k, $v) {
// courtesy, Ryan Currie, ryan@digibliss.com
if (!function_exists('array_change_key_case')) {
- define("CASE_UPPER",1);
- define("CASE_LOWER",0);
+ define("CASE_UPPER",1);
+ define("CASE_LOWER",0);
- function array_change_key_case($array,$case=CASE_LOWER) {
- if ($case=CASE_LOWER) $cmd=strtolower;
- elseif ($case=CASE_UPPER) $cmd=strtoupper;
+ function array_change_key_case($array,$case=CASE_LOWER) {
+ if ($case==CASE_LOWER) $cmd='strtolower';
+ elseif ($case==CASE_UPPER) $cmd='strtoupper';
foreach($array as $key=>$value) {
$output[$cmd($key)]=$value;
}
return $output;
- }
+ }
}
projects / tt-rss.git / commitdiff