WordPress: Problem with the shortcode regex
- by peroyomas
This is the regular expression used for "shortcodes" in WordPress (one for the whole tag, other for the attributes).
return '(.?)\[('.$tagregexp.')\b(.*?)(?:(\/))?\](?:(.+?)\[\/\2\])?(.?)';
$pattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/';
It parses stuff like
[foo bar="baz"]content[/foo]
or
[foo /]
In the WordPress trac they say it's a bit flawed, but my main problem is that it don't support shortcodes inside the attributes, like in
[foo bar="[baz /]"]content[/foo]
because the regex stops the main shortcode at the first appearance of a closing bracket, so in the example it renders
[foo bar="[baz /]
and
"]content[/foo]
shows as it is.
Is there any way to change the regex so it bypass any ocurrence of [ with ] and its content when occurs between the opening tag or self-closing tag?
