Last modified: 2013-10-23 15:57:36 UTC
Currently, the function uses the regex /(<[^>]+)class=(['\"])$class\\2([^>]*>)/ to try to detect the CSS classes. This only works if the element has only one class and fails for some classes (mentioned on bug 34800) which appear at https://en.wikipedia.org/w/index.php?title=Special:RecentChanges&feed=rss&action=purge E.g.: * diff: http://www.rubular.com/r/Q6x0qNBRmo * diffchange: http://www.rubular.com/r/0ToRFfpvXA Something like (<[^>]+)class=(['\"])$class(| .+?)\\2([^>]*>) would be slightly better: http://www.rubular.com/r/BGlcrGfRtd but still wouldn't work in case there is some class before the specified class: http://www.rubular.com/r/xLWx9MWBSL Besides, notice that \" has only one backslash and \\2 has two. I don't know what is the proper syntax for this in PHP strings but it is likely that one of the two needs to be fixed. See also bug 34800 and bug 34798.
not happening for 1.20 tarball.
