<?php
-# Copyright (C) 2009 Aryeh Gregor
+# Copyright © 2009 Aryeh Gregor
# http://www.mediawiki.org/
#
# This program is free software; you can redistribute it and/or modify
* This class is meant to be confined to utility functions that are called from
* trusted code paths. It does not do enforcement of policy like not allowing
* <a> elements.
+ *
+ * @since 1.16
*/
class Html {
# List of void elements from HTML5, section 9.1.2 as of 2009-08-10
}
return $start;
} else {
- return "$start$contents</$element>";
+ return "$start$contents" . self::closeElement( $element );
}
}
/**
* Identical to rawElement(), but has no third parameter and omits the end
- * tag (and the self-closing / in XML mode for empty elements).
+ * tag (and the self-closing '/' in XML mode for empty elements).
*/
public static function openElement( $element, $attribs = array() ) {
- global $wgHtml5;
+ global $wgHtml5, $wgWellFormedXml;
$attribs = (array)$attribs;
# This is not required in HTML5, but let's do it anyway, for
# consistency and better compression.
$element = strtolower( $element );
+ # In text/html, initial <html> and <head> tags can be omitted under
+ # pretty much any sane circumstances, if they have no attributes. See:
+ # <http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html#optional-tags>
+ if ( !$wgWellFormedXml && !$attribs
+ && in_array( $element, array( 'html', 'head' ) ) ) {
+ return '';
+ }
+
# Remove HTML5-only attributes if we aren't doing HTML5
if ( !$wgHtml5 ) {
if ( $element == 'input' ) {
self::dropDefaults( $element, $attribs ) ) . '>';
}
+ /**
+ * Returns "</$element>", except if $wgWellFormedXml is off, in which case
+ * it returns the empty string when that's guaranteed to be safe.
+ *
+ * @param $element string Name of the element, e.g., 'a'
+ * @return string A closing tag, if required
+ */
+ public static function closeElement( $element ) {
+ global $wgWellFormedXml;
+
+ $element = strtolower( $element );
+
+ # Reference:
+ # http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html#optional-tags
+ if ( !$wgWellFormedXml && in_array( $element, array(
+ 'html',
+ 'head',
+ 'body',
+ 'li',
+ 'dt',
+ 'dd',
+ 'tr',
+ 'td',
+ 'th',
+ ) ) ) {
+ return '';
+ }
+ return "</$element>";
+ }
+
/**
* Given an element name and an associative array of element attributes,
* return an array that is functionally identical to the input array, but
dépôts / lhc / web / wiklou.git / blobdiff