Upgrade to 3.3 ruins Double Dash fix

I changed my wordpress/wp-includes/formatting.php

Aaaand that’s all she wrote.

Let that be a lesson to you, young man, don’t modify core files that ship with the WordPress distribution!

There’s much easier ways to filter content. Try this solution that I just tested on my crash test dummy.

In your wp-content/plugins directory create a file called un-double-dash.php and paste in this code.

<?php
/*
Plugin Name: Un-double the dash
*/

add_filter( 'the_content' , 'mh_double_dash' , 99 );
function mh_double_dash( $text ) {
        return str_replace( '& #8211;', '--', $text );
}

See that & #8211; delete the space between the & and the #.

Activate that new plugin and enjoy the double dash not being converted.

That will apply to the_content but it can be applied to the_excerpt, etc. too.

Note: Just to be clear, the “Let that be a lesson to you, young man” part was an attempt at humor. I don’t think the original poster is a young man or needs admonishment. ??

In seriousness, please don’t edit the core files. There is usually an easy way to accomplish something like this and the plugin I describe above will unconvert the – back to double dashes.

I got the joke. And this was super helpful. Thanks Jan.