function smilies_init_old()
{
    global $wpsmiliestrans, $wp_smiliessearch;
    // don't bother setting up smilies if they are disabled
    if (!get_option('use_smilies')) {
        return;
    }
    if (!isset($wpsmiliestrans)) {
        $wpsmiliestrans = array(':mrgreen:' => 'icon_mrgreen.gif', ':neutral:' => 'icon_neutral.gif', ':twisted:' => 'icon_twisted.gif', ':arrow:' => 'icon_arrow.gif', ':shock:' => 'icon_eek.gif', ':smile:' => 'icon_smile.gif', ':???:' => 'icon_confused.gif', ':cool:' => 'icon_cool.gif', ':evil:' => 'icon_evil.gif', ':grin:' => 'icon_biggrin.gif', ':idea:' => 'icon_idea.gif', ':oops:' => 'icon_redface.gif', ':razz:' => 'icon_razz.gif', ':roll:' => 'icon_rolleyes.gif', ':wink:' => 'icon_wink.gif', ':cry:' => 'icon_cry.gif', ':eek:' => 'icon_surprised.gif', ':lol:' => 'icon_lol.gif', ':mad:' => 'icon_mad.gif', ':sad:' => 'icon_sad.gif', '8-)' => 'icon_cool.gif', '8-O' => 'icon_eek.gif', ':-(' => 'icon_sad.gif', ':-)' => 'icon_smile.gif', ':-?' => 'icon_confused.gif', ':-D' => 'icon_biggrin.gif', ':-P' => 'icon_razz.gif', ':-o' => 'icon_surprised.gif', ':-x' => 'icon_mad.gif', ':-|' => 'icon_neutral.gif', ';-)' => 'icon_wink.gif', '8O' => 'icon_eek.gif', ':(' => 'icon_sad.gif', ':)' => 'icon_smile.gif', ':?' => 'icon_confused.gif', ':D' => 'icon_biggrin.gif', ':P' => 'icon_razz.gif', ':o' => 'icon_surprised.gif', ':x' => 'icon_mad.gif', ':|' => 'icon_neutral.gif', ';)' => 'icon_wink.gif', ':!:' => 'icon_exclaim.gif', ':?:' => 'icon_question.gif');
    }
    if (count($wpsmiliestrans) == 0) {
        return;
    }
    /*
     * NOTE: we sort the smilies in reverse key order. This is to make sure
     * we match the longest possible smilie (:???: vs :?) as the regular
     * expression used below is first-match
     */
    krsort($wpsmiliestrans);
    $spaces = wp_spaces_regexp();
    // Begin first "subpattern"
    $wp_smiliessearch = '/(?<=' . $spaces . '|^)';
    $subchar = '';
    foreach ((array) $wpsmiliestrans as $smiley => $img) {
        $firstchar = substr($smiley, 0, 1);
        $rest = substr($smiley, 1);
        // new subpattern?
        if ($firstchar != $subchar) {
            if ($subchar != '') {
                $wp_smiliessearch .= ')(?=' . $spaces . '|$)';
                // End previous "subpattern"
                $wp_smiliessearch .= '|(?<=' . $spaces . '|^)';
                // Begin another "subpattern"
            }
            $subchar = $firstchar;
            $wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:';
        } else {
            $wp_smiliessearch .= '|';
        }
        $wp_smiliessearch .= preg_quote($rest, '/');
    }
    $wp_smiliessearch .= ')(?=' . $spaces . '|$)/m';
}

/**
 * Convert smiley code to the icon graphic file equivalent.
 *
 * You can turn off smilies, by going to the write setting screen and unchecking
 * the box, or by setting 'use_smilies' option to false or removing the option.
 *
 * Plugins may override the default smiley list by setting the $wpsmiliestrans
 * to an array, with the key the code the blogger types in and the value the
 * image file.
 *
 * The $wp_smiliessearch global is for the regular expression and is set each
 * time the function is called.
 *
 * The full list of smilies can be found in the function and won't be listed in
 * the description. Probably should create a Codex page for it, so that it is
 * available.
 *
 * @global array $wpsmiliestrans
 * @global array $wp_smiliessearch
 *
 * @since 2.2.0
 */
function smilies_init()
{
    global $wpsmiliestrans, $wp_smiliessearch;
    // don't bother setting up smilies if they are disabled
    if (!get_option('use_smilies')) {
        return;
    }
    if (!isset($wpsmiliestrans)) {
        $wpsmiliestrans = array(':mrgreen:' => 'mrgreen.png', ':neutral:' => "