- // Underline: 2 = browser default, 1 = always, 0 = never
- if ( $options['underline'] < 2 ) {
- $rules[] = "a { text-decoration: " .
- ( $options['underline'] ? 'underline' : 'none' ) . "; }";
- } else {
- # The scripts of these languages are very hard to read with underlines
- $rules[] = 'a:lang(ar), a:lang(ckb), a:lang(fa),a:lang(kk-arab), ' .
- 'a:lang(mzn), a:lang(ps), a:lang(ur) { text-decoration: none; }';
- }
- if ( $options['justify'] ) {
- $rules[] = "#article, #bodyContent, #mw_content { text-align: justify; }\n";
- }
- if ( !$options['showtoc'] ) {
- $rules[] = "#toc { display: none; }\n";
- }
- if ( !$options['editsection'] ) {
- $rules[] = ".editsection { display: none; }\n";
- }
- if ( $options['editfont'] !== 'default' ) {
+ // Build CSS rules
+ $rules = array();
+
+ // Underline: 2 = browser default, 1 = always, 0 = never
+ if ( $options['underline'] < 2 ) {
+ $rules[] = "a { text-decoration: " .
+ ( $options['underline'] ? 'underline' : 'none' ) . "; }";
+ } else {
+ # The scripts of these languages are very hard to read with underlines
+ $rules[] = 'a:lang(ar), a:lang(ckb), a:lang(fa),a:lang(kk-arab), ' .
+ 'a:lang(mzn), a:lang(ps), a:lang(ur) { text-decoration: none; }';
+ }
+ if ( $options['justify'] ) {
+ $rules[] = "#article, #bodyContent, #mw_content { text-align: justify; }\n";
+ }
+ if ( !$options['showtoc'] ) {
+ $rules[] = "#toc { display: none; }\n";
+ }
+ if ( !$options['editsection'] ) {
+ $rules[] = ".editsection { display: none; }\n";
+ }
+ if ( $options['editfont'] !== 'default' ) {
+ // Double-check that $options['editfont'] consists of safe characters only
+ if ( preg_match( '/^[a-zA-Z0-9_, -]+$/', $options['editfont'] ) ) {