class="lineno">   79</span>&#160;  RuneStrArray::const_iterator SequentialLetterRule(RuneStrArray::const_iterator begin, RuneStrArray::const_iterator end)<span class="keyword"> const </span>{</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    Rune x = begin-&gt;rune;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="keywordflow">if</span> ((<span class="charliteral">&#39;a&#39;</span> &lt;= x &amp;&amp; x &lt;= <span class