http://www.perlmonks.org?node_id=176577

Inspired by Len's recent spiralling quine, I have created a somersaulting camel.

camel.pl: (Save all text between the ------ lines below) ------------------------------------------------------------------ ''=~('(?{'.( ('`')| '%').('['^'-'). ('`'|'!'). ('`'|',').'"'.('[' ^'(').('[' ^'.'). ('`'|'"').('{'^'['). '_\\{'.('['^('(')).( '['^'"').('['^('(')).( '['^'/').('`'|"\%").( '`'|'-').'\\$^'.(('`')^ '/').'=~'.('{'^',') .('`'|')').('`'|'.').'?'.( '`'^'#').('`'^ ',').('{'^'(').':'."'".("\`"| '#').('`'|',') .('`'|'%').('`'|'!').('['^"\)"). "'".';'.(('[')^ '+').('['^')').('`'|')').('`'|'.'). ('['^'/').'\\$' .'\\"'.('['^'#').'+'.('`'|'!').(('`')| '"').('['^'('). '('.('^'^('`'|'/')).(':'&'=').'*('.('^'^ ('`'|',')).'*' .'\\$|-\\$;)),\\$_,\\$/'.('`'|'&').("\`"| '/').('['^')') .'\\@_;'.('['^'(').('`'|',').('`'|('%')).( '`'|'%').('['^'+').('{'^'[').('^'^('`'|'/')).'\\}'.(('`')| '/').('['^'+').('`'|'%').('`'|'.').'\\$%;'.('`'|'#').("\`"| '(').('`'|'/').('['^'+').','.('['^'"').',!-~,#,,'.('['^'(' ).',(.).?,\\$+,'.('`'|"'").('`'|'&').('`'|'/').('['^(')')). '\\@~='.('`'|"'").('['^')').('`'|'%').('['^'+').'\\$|--,<'. ('^'^('`'|'.')).'>;\\@;='.('`'|'-').('`'|'!').('['^('+')). '~~'.('['^')').('`'|'%').('['^'-').('`'|'%').('['^')' ).( '['^'(').('`'|'%').','.('['^')').('`'|'%').('['^'-' ).( '`'|'%').('['^')').('['^'(').('`'|('%')). '\\@~;(' .(( '\\')).'$;=\\$_%'.('^'^('`'|'-')).')|' .'|(--' .(( '\\') ).'$|,'.('`'|'-').('`'|"\!").( '['^'+' ).+ '\\{\\$_='.('['^')').('`'|'%' ).('['^ '-' ).("\`"| '%').('['^ ')').( ('[')^ (( '('))). ('`'|'%' ).'\\' .'}\\' .+ '@~,\\' .'@;),_' .'\\' .'$;' . "\&".( '^'^('`' |'/' )).+ '?\\@' .';:\\@~' .''. ('`' |'&') .(('`')| '/') .''. ('['^ (')')). '\\' .'$' .'%' .'..'. ('^' ^((( '`') )|+ '/') ).+( '^'^ ((( '`' ))| '/' )). '"' .(( '}' )). ')' );( $:) =(( '.' )) ^+ '~';$~ =( (( '@')) )| (( '('));$^ =( ')' )^(( '[')) ;( $/) ="\`"| '.'; $_= '('^ "\}";$,= '`' |'!' ;($\)= (')')^ "\}";$:= '.'^'~' ------------------------------------------------------------------

To run this program, save as camel.pl (say), then:

perl camel.pl

and watch the camel somersault across the screen.

camel.pl above was created with:

perl gencamel.pl >camel.pl

where gencamel.pl is:

use Acme::EyeDrops qw(sightly); my $src = <<'END_SRC_STR'; sub _{system$^O=~Win?CLS:'clear'; print$"x+abs(18*(2*$|-$;)),$_,$/for@_;sleep 1} open$%; chop,y,!-~,#,,s,(.).?,$+,gfor@~=grep$|--,<0>; @;=map~~reverse,reverse@~; ($;=$_%3)||(--$|,map{$_=reverse}@~,@;), _$;&1?@;:@~for$%..11 END_SRC_STR $src =~ tr/\n//d; my $prog = sightly( { Regex => 1, Compact => 1, Shape => 'camel', SourceString => $src } ); my @a = split(/\n/, $prog); my $max = 0; length > $max and $max = length for @a; $_ .= ' ' x ($max - length) for @a; print " $_ \n" for @a;

It was quite a struggle to make this program small enough to fit into a single camel shape, so any further golfing improvements to gencamel.pl above are most welcome.