&#39;</span> &lt;= x &amp;&amp; x &lt;= <span class="charliteral">&#39;z&#39;</span>) || (<span class="charliteral">&#39;A&#39;</span> &lt;= x &amp;&amp; x &lt;= <span class="charliteral">&#39;Z&#39;</span>) || (<span class="charliteral">&#39;0&#39;</span> &lt;= x &amp;&amp; x &lt;= <span class="charliteral">&#39;9&#39;</span>)) {</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        begin ++;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&