public Token LT(int k) {lazyInit();if ( k == 0 ) return null;if ( k < 0 ) return LB(-k);int i = p;int n = 1; while ( n<k ) {if (sync(i + 1)) {i = nextTokenOnChannel(i + 1, channel);}n++;}return tokens.get(i);}
public override IToken LT(int k){LazyInit();if (k == 0){return null;}if (k < 0){return Lb(-k);}int i = p;int n = 1;while (n < k){if (Sync(i + 1)){i = NextTokenOnChannel(i + 1, channel);}n++;}return tokens[i];}