use strict; use warnings; #use Data::Dump qw/pp dd/; #use feature qw/say/; my @table = split /\n/, <<'__TABLE__'; > ++k; < --k; + ++*k; - --*k; . putchar(*k); , *k = getchar(); [ while (*k) { ] } __TABLE__ my %trans = map { split/\s+/, $_, 2 } @table; #pp \%trans; my $bfs = '+[--[--]->+++<]>+.---'; my $level = 0; for my $atom ( split //, $bfs ) { $level-- if $atom eq "]"; print "\t" x $level; $level++ if $atom eq "["; print $trans{$atom}; #print "\t\t\t// was '$atom'"; # debug print "\n"; } #### ++*k; while (*k) { --*k; --*k; while (*k) { --*k; --*k; } --*k; ++k; ++*k; ++*k; ++*k; --k; } ++k; ++*k; putchar(*k); --*k; --*k; --*k;