public static function insert($str, array $data, array $options = array()) {
		$defaults = array(
			'before' => '{:',
			'after' => '}',
			'escape' => null,
			'format' => null,
			'clean' => false
		);
		$options += $defaults;
		$format = $options['format'];
		reset($data);

		if ($format == 'regex' || (!$format && $options['escape'])) {
			$format = sprintf(
				'/(?<!%s)%s%%s%s/',
				preg_quote($options['escape'], '/'),
				str_replace('%', '%%', preg_quote($options['before'], '/')),
				str_replace('%', '%%', preg_quote($options['after'], '/'))
			);
		}

		if (!$format && key($data) !== 0) {
			$replace = array();

			foreach ($data as $key => $value) {
				$value = (is_array($value) || $value instanceof Closure) ? '' : $value;

				try {
					if (is_object($value) && method_exists($value, '__toString')) {
						$value = (string) $value;
					}
				} catch (Exception $e) {
					$value = '';
				}
				$replace["{$options['before']}{$key}{$options['after']}"] = $value;
			}
			$str = strtr($str, $replace);
			return $options['clean'] ? static::clean($str, $options) : $str;
		}

		if (strpos($str, '?') !== false && isset($data[0])) {
			$offset = 0;
			while (($pos = strpos($str, '?', $offset)) !== false) {
				$val = array_shift($data);
				$offset = $pos + strlen($val);
				$str = substr_replace($str, $val, $pos, 1);
			}
			return $options['clean'] ? static::clean($str, $options) : $str;
		}

		foreach ($data as $key => $value) {
			$hashVal = crc32($key);
			$key = sprintf($format, preg_quote($key, '/'));

			if (!$key) {
				continue;
			}
			$str = preg_replace($key, $hashVal, $str);
			$str = str_replace($hashVal, $value, $str);
		}

		if (!isset($options['format']) && isset($options['before'])) {
			$str = str_replace($options['escape'] . $options['before'], $options['before'], $str);
		}
		return $options['clean'] ? static::clean($str, $options) : $str;
	}