ession to a single constant expression,
 if it does not contain a variable.</p></div></div><div class="top"><p class="src"><a id="v:trimString" class="def">trimString</a> :: <a href="Expr.html#t:Expr" title="Expr">Expr</a> <a href="../text-1.2.3.0/Data-Text.html#t:Text" title="Data.Text">Text</a> -&gt; <a href="Expr.html#t:Expr" title="Expr">Expr</a> <a href="../text-1.2.3.0/Data-Text.html#t:Text" title="Data.Text">Text</a> <a href="src/Expr.html#trimString" class="link">Source</a> <a href="#v:trimString" c