Antispam Bee filter for custom RegExp patterns

functions.php

<?php 
/**
 * Antispam Bee filter for custom RegExp patterns
 * See: https://github.com/sdellenb/twentyfifteen-rubenesque-child/blob/master/functions.php#L14-L45
 */
add_action(
	'init',
	'antispam_bee_patterns'
);
function antispam_bee_patterns() {
	add_filter(
		'antispam_bee_patterns',
		'antispam_bee_add_custom_patterns'
	);
}
function antispam_bee_add_custom_patterns($patterns) {
	// Pattern for phony author names.
	// Fun Fact: The last one is 'Prada' in Japanese.
	$patterns[] = array(
		'author' => 'moncler|north face|vuitton|handbag|burberry|outlet|dress|maillot|oakley|ralph lauren|ray ban|iphone|プラダ'
	);
	// Pattern for phony web pages.
	$patterns[] = array(
		'host' => '^(www\.)?fkbook\.co\.uk$|^(www\.)?nsru\.net$|^(www\.)?goo\.gl$|^(www\.)?bit\.ly$'
	);
	// Pattern for text containing strings like 'targetted visitors'.
	$patterns[] = array(
		'body' => 'target[t]?ed (visitors|traffic)'
	);
	return $patterns;
}