+/** Convert html to plain text
+ */
+function htmlToPlainText($res)
+{
+ $res = trim(html_entity_decode(strip_tags($res, '<br>')));
+ $res = preg_replace("@<br[^>]>@i", "\n", $res);
+ return $res;
+}
+
+/********************************************************************************
+ * RICHTEXT STUFF
+ */
+
+/** Convert richtext to html
+ */
+function richtextToHtml($source)
+{
+ $tags = Array('bold' => 'b',
+ 'italic' => 'i',
+ 'smaller' => 'small',
+ 'bigger' => 'big',
+ 'underline' => 'u',
+ 'subscript' => 'sub',
+ 'superscript' => 'sup',
+ 'excerpt' => 'blockquote',
+ 'paragraph' => 'p',
+ 'nl' => 'br'
+ );
+
+ // clean unsupported tags
+ $protectedTags = '<signature><lt><comment><'.join('><', array_keys($tags)).'>';
+ $source = strip_tags($source, $protectedTags);
+
+ // convert richtext tags to html
+ foreach (array_keys($tags) as $tag) {
+ $source = preg_replace('@(</?)'.$tag.'([^>]*>)@i', '\1'.$tags[$tag].'\2', $source);
+ }
+
+ // some special cases
+ $source = preg_replace('@<signature>@i', '<br>-- <br>', $source);
+ $source = preg_replace('@</signature>@i', '', $source);
+ $source = preg_replace('@<lt>@i', '<', $source);
+ $source = preg_replace('@<comment[^>]*>((?:[^<]|<(?!/comment>))*)</comment>@i', '<!-- \1 -->', $source);
+ return removeEvilAttributes($source);
+}
+