;lex_buffer_len&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_abs_pos&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_start_pos&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_curr_pos&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_last_pos&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_last_