* existing scanners that call yyless() from OUTSIDE surf_parse_lex.
* One obvious solution it to make yy_act a global. I tried that, and saw
* a 5% performance hit in a non-surf_parse_lineno scanner, because yy_act is
* existing scanners that call yyless() from OUTSIDE surf_parse_lex.
* One obvious solution it to make yy_act a global. I tried that, and saw
* a 5% performance hit in a non-surf_parse_lineno scanner, because yy_act is