view release on metacpan or  search on metacpan

Infix2Postfix.pm  view on Meta::CPAN

sub translate {
    my $self=shift;
    my $str=shift;
    my (@matches,@errors,@res);
    
    @matches=$self->tokenize($str);
    @errors=$self->verify(@matches);

    if (@errors) {
      $self->{ERRSTR}='Bad tokens: '.join(' ',@matches[@errors]);
      return undef;
    }

    @res=$self->elist(@matches);
    return @res;
}


sub elist {
  my $self=shift;
  my (@poss,$i,$cop); # possible breaks