Question

So basically, I have this:

str.replace(/<p><\/p>|<p>\.<\/p>/g);

Trying to remove all paragraphs with nothing or less than 3 characters inside. The first part of the regex works properly, but the paragraphs like this: <p>.</p> don’t get removed. Sorry for the newbie question.

Answer 1

Try this regex. /<\s*(p|P)[^>]*>([^<.]{0,3}|\..{1,2}|.{1,2}\.)<\s*\/(p|P)\s*>/g
This will match a <p> tags, case-insensitive and the paragraphs can have different attributes.

Example:

var str = "<p>test</p><p>t</p><P>tes</P><p class=\"someclass\">s</p>< p >some long text</p>";
str.replace(/<\s*(p|P)[^>]*>([^<.]{0,3}|\..{1,2}|.{1,2}\.)<\s*\/(p|P)\s*>/g, '');

And a jsfiddle example: http://jsfiddle.net/Tkwk5/3/