Automattic / jetpack

		$line = $this->line +

			substr_count(substr($this->buffer, 0, $count), "\n");

		if (!empty($this->sourceName)) {

			$loc = "$this->sourceName on line $line";

		} else {

			$loc = "line: $line";

		}

		// TODO this depends on $this->count

		if ($this->peek("(.*?)(\n|$)", $m, $count)) {

		$line = $this->getLineNo($count);

		if (!empty($this->sourceName)) {

			$loc = "$this->sourceName on line $line";

		} else {

			$loc = "line: $line";

		}

		if ($this->peek("(.*?)(\n|$)", $m, $count)) {

			throw new Exception("$msg: failed at `$m[1]` $loc");