shortcode->getHandlers()->add('safe-email', function(ShortcodeInterface $sc) {
// Get shortcode content and parameters. Strip any tags Grav's GFM
// autolinker may have wrapped the bare email in before this handler
// runs, otherwise the address gets double-wrapped into a nested link.
$addr_str = strip_tags($sc->getContent());
$icon = $sc->getParameter('icon', false);
// Only pull Font Awesome in when an icon was actually asked for.
// This used to register the stylesheet before reading the
// parameter, so a plain [safe-email], which is the common case,
// fetched a webfont it never drew (getgrav/grav#4288).
if ($icon && $this->config->get('plugins.shortcode-core.fontawesome.load', false)) {
$this->shortcode->addAssets('css', $this->config->get('plugins.shortcode-core.fontawesome.url'));
}
$icon_base = "fa fa-";
$autolink = $sc->getParameter('autolink', false);
$subject = $sc->getParameter('subject', false);
// Add subject, if any, to the link target.
$link_str = $addr_str;
if ($subject) {
$subject = html_entity_decode($subject);
$link_str .= '?subject=' . rawurlencode($subject);
}
// Encode display text and link target
$email_disp = static::encodeText($addr_str);
$email_link = static::encodeText($link_str);
// Handle autolinking
if ($autolink) {
$output = '' . $email_disp . '';
} else {
$output = $email_disp;
}
// Handle icon option
if ($icon) {
if ($this->config->get('plugins.shortcode-core.fontawesome.v5', false)) {
if (preg_match("/^(?Pfa[srlbd]) fa-(?.+)/", $icon, $icon_parts)) {
$icon_base = $icon_parts["weight"] . " fa-";
$icon = $icon_parts["icon"];
}
}
$output = ' ' . $output;
}
return $output;
});
}
/**
* encodes text as numeric HTML entities
* @param string $text the text to encode
* @return string the encoded text
*/
private static function encodeText($text)
{
$encoded = '';
$str_len = strlen($text);
for ($i = 0; $i < $str_len; $i++) {
$encoded .= '&#' . ord($text[$i]). ';';
}
return $encoded;
}
}