action&nbsp;:&nbsp;int;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_eof_reached&nbsp;:&nbsp;bool;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_mem&nbsp;:&nbsp;int&nbsp;array;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_start_p&nbsp;:&nbsp;<span class="constructor">Lexing</span>.position;<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">mutable</span>&nbsp;lex_curr_p&nbsp;:&nbsp;<span class="constructor">Lexing</span>.p