ungetC
ungetC(c);
ungetC(HIST);
ungetC(HIST);
ungetC(c1);
ungetC(c);
ungetC(c);
ungetC(c);
ungetC('$' | QUOTE);
ungetC(sc);
ungetC('s'), unreadc(HISTSUB), c = ':';
ungetC(c);
ungetC(c), c = '-';