[Plugin: Twitter Tools] Feature request: use variables in tweet prefix

In the meanwhile I wrote a short hook which should do the case I think.. you have to set the tweet prefix to {category} and put the code somewhere in your theme (functions.php for instance).

function twitter_category_prefix($tweet = FALSE, $post = FALSE) {
	$replace_str = '{category}';

	if($tweet && $post && isset($post->ID) && strpos($tweet->tw_text, $replace_str) !== FALSE) {
		// Find categories for this post
		$categories = get_the_category($post->ID);
		if(count($categories) > 0) {
			// Replace first category name in tweet text
			$tweet->tw_text = str_replace($replace_str, $categories[0]->name, $tweet->tw_text);
			return $tweet;
		}
	}
	else {
		return $tweet;
	}
}
add_filter('aktt_do_blog_post_tweet', 'twitter_category_prefix', $priority = 10, $amount_of_args = 2);