Strips @font-face definitions

Can you test the following fix?

Modify line 711 of class.csstidy.php to look like this:

if($this->sub_value != '') {
	$this->sub_value_arr[] = $this->sub_value;
	foreach($this->sub_value_arr as &$sub_value) {
		if (substr($sub_value, 0, 6) == 'format') {
			$sub_value = str_replace(array('format(', ')'), array('format("', '")'), $sub_value);
		}
	}
	$this->sub_value = '';
}

Source: http://www.pixelastic.com/blog/86:csstidy-and-the-woff-fonts

Ok, I'll try to test it this weekend.

This issue here appears that src: isn't a registered property with CSSTidy.

By adding the following to the list of properties on line 181 of data.inc.php we get a partial fix

$GLOBALS['csstidy']['all_properties']['src'] = 'CSS3.0';

Running the code, this:

@font-face {
font-family: 'League';
src: url('fonts/league_gothic-webfont.eot');
src: local('☺'), url('fonts/league_gothic-webfont.woff') format('woff'), url('fonts/league_gothic-webfont.ttf') format('truetype'), url('fonts/league_gothic-webfont.svg#webfontd1flepKb') format('svg');
font-weight: normal;
font-style: normal;
}

gets turned into this:

@font-face {
font-family:League;
src:local(☺),url(/themes/garland/fonts/league_gothic-webfont.woff) format(woff),url(/themes/garland/fonts/league_gothic-webfont.ttf) format(truetype),url(/themes/garland/fonts/league_gothic-webfont.svg#webfontd1flepKb) format(svg);
font-weight:400;
font-style:normal
}

So, it overwrites the following code:
src: url('fonts/league_gothic-webfont.eot');

...which I believe means Internet Explorer gets left out of the fun. :-(

From the project page:

One of the core features of CSSTidy is to remove properties which have been overwritten. Sometimes, like in the case of @font-face, overwriting properties is a technique used for browser compatibility. Unfortunately, since this feature is so engrained in CSSTidy, I'm not able to provide a solution to preserve this technique. This means the first src: property, which declares the Internet Explorer .eot file, is removed from your stylesheet and therefore IE doesn't display your font.

The solution is to keep the @font-face rule out of CSSTidy's processing. You can do this by hard coding it into your theme so it is not visible to Drupal's CSS preprocessor.

Going to try getting this to work:
http://www.pixelastic.com/blog/188:css3-gradients-with-csstidy

The cursor hack it refers to no longer exist in CSSTidy, so I'm not sure this will work.

http://drupalcode.org/project/csstidy.git/commit/894ea13