The LIVE parser-state key handed to a custom lexer's lex() and mutated
between yields: under parser: "lalr" an object whose position is the
current LALR state index (null before the first shift); under
parser: "earley" one Set of the terminal NAMES the next step can scan,
cleared and refilled in place per pull.
The LIVE parser-state key handed to a custom lexer's
lex()and mutated between yields: underparser: "lalr"an object whosepositionis the current LALR state index (nullbefore the first shift); underparser: "earley"oneSetof the terminal NAMES the next step can scan, cleared and refilled in place per pull.