Reply To: Date Picker: Using escape-characters results in odd behaviour

• jsilver

• November 1, 2014 at 11:27 pm

I was also able to correct this using a filter to avoid changing the ACF code directly, the preg_match() will only do the replace if there is a single \ in the content, not a double \\:

add_filter( 'content_save_pre', function( $content ){
	global $post;
	if ( get_post_type() == 'acf-field-group' ){
		if ( preg_match( '~(?<!\\\\)\\\\(?!\\\\)~', $content ) ){
			$content = str_replace('\\', '\\\\', $content);
		}
	}
	return $content;
});

I’m including this filter in my Validated Field plugin since backslashes are pretty common in regular expressions which is one of the validations types I am supporting.