gn="left" valign="top">
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top">
<code>mutable&nbsp;lex_start_pos&nbsp;: int;</code></td>

</tr>
<tr>
<td align="left" valign="top">
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top">
<code>mutable&nbsp;lex_curr_pos&nbsp;: int;</code></td>

</tr>
<tr>
<td align="left" valign="top">
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top">
<code>mutable&nbsp;lex_last_pos&nbsp;: int;</code></td>

</tr>
<tr>
<td align="left" valign="top">
<cod