 against the subject string.
If the match succeeds,
returns the index in the subject of the first character after the match,
or the <a href="#captures">captured values</a>
(if the pattern captured any value).
</p>

<p>
An optional numeric argument <code>init</code> makes the match
starts at that position in the subject string.
As usual in Lua libraries,
a negative value counts from the end.
</p>

<p>
Unlike typical pattern-matching functions,
<code>match</code> works only in <em>anchored</em> mode;
that is,