<p>problem scenario is:<br>
need to clear htable cache dynamically (using an event-route + nsq message)<br>
but <code>sht_rm_name_re</code> and <code>sht_rm_value_re</code> do not support variables as parameters.<br>
solution in patch:<br>
allow variables by adding a 2nd parameter to each function<br>
if called with one parameter like <code>sht_rm_value_re("ha=>.*");</code><br>
traditional behavior is executed.<br>
if passing a 2nd parameter like<br>
<code>sht_rm_value_re("$var(htable)", ".*$var(match)");</code><br>
new behavior is executed which allows variables.<br>
I hope that makes sense.</p>

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