/**
* Format a [quote] tag.
*
* This tag can come in a variety of flavors:
*
* ```
* [quote]...[/quote]
* [quote=Tom]...[/quote]
* [quote name="Tom"]...[/quote]
* ```
*
* In the third form, you can also add a date="" parameter to display the date
* on which Tom wrote it, and you can add a url="" parameter to turn the author's
* name into a link. A full example might be:
*
* ```
* [quote name="Tom" date="July 4, 1776 3:48 PM" url="http://www.constitution.gov"]...[/quote]
* ```
*
* The URL only allows http, https, mailto, gopher, ftp, and feed protocols for safety.
*
* @param BBCode $bbcode The {@link BBCode} object doing the parsing.
* @param int $action The current action being performed on the tag.
* @param string $name The name of the tag.
* @param string $default The default value passed to the tag in the form: `[tag=default]`.
* @param array $params All of the parameters passed to the tag.
* @param string $content The content of the tag. Only available when {@link $action} is **BBCODE_OUTPUT**.
* @return bool|string Returns the quote HTML or **true** if {@link $action} is **BBCode::BBCODE_CHECK**.
*/
public function doQuote(BBCode $bbcode, $action, $name, $default, $params, $content)
{
if ($action == BBCode::BBCODE_CHECK) {
return true;
}
if (isset($params['name'])) {
$title = htmlspecialchars(trim($params['name'])) . " wrote";
if (isset($params['date'])) {
$title .= " on " . htmlspecialchars(trim($params['date']));
}
$title .= ":";
if (isset($params['url'])) {
$url = trim($params['url']);
if ($bbcode->isValidURL($url)) {
$title = "<a href=\"" . htmlspecialchars($params['url']) . "\">" . $title . "</a>";
}
}
} elseif (!is_string($default)) {
$title = "Quote:";
} else {
$title = htmlspecialchars(trim($default)) . " wrote:";
}
return $bbcode->fillTemplate($bbcode->getQuoteTemplate(), array("title" => $title, "content" => $content));
}