<?PHP
/**
 * For embedding from museum-digital functions.
 *
 * @file
 *
 * @author Joshua Ramon Enslin <joshua@jrenslin.de>
 */

/**
 * Function for checking a text for the existence of pseudocode
 * for embedding from museum-digital.
 *
 * @param string $text Input string.
 *
 * @return string
 */
function checkForEmbeds(string $text):string {

    $embedOptions = [
        "eventCalendar"
    ];

    foreach ($embedOptions as $option) {

        if (strpos($text, $option) === false) continue;
        $position = strpos($text, $option) - 1;

        $nextTag        = strpos($text, "<", $position);
        $nextWhitespace = strpos($text, " ", $position);

        $end = min($nextTag, $nextWhitespace, strlen($text));

        $pseudocode = substr($text, $position, $position + $end);
        echo $pseudocode;

    }

    return $text;

}

?>