Can anyone think of a nicer way to do this?
:) Tnx. 
eval('0 and eval(\'def length(x) end\')');
0 and length <<2;
"""   #"
2
BEGIN{ eval('$stdin') ? "" : eval('package _X;use Filter::Simple sub {
 s{^(.*?\n__END_OF_RUBY__[^;]+;)}{do{my $x="$1";$x=~ tr/\n/ /c;$x}}se;
 s{(\n#__END_OF_PERL__.*)}{do{my $x="$1";$x =~ tr/\n/ /c;$x}}se;};
 package main;import _X;'); }
# END OF CRUFT


def hello()
  print "Hi there ruby!\n";
end
hello();


__END_OF_RUBY__ = <<'#__END_OF_PYTHON__';


sub hello {
  print "Hi there perl!\n";
}
hello();


#__END_OF_PERL__
"""  #"


def hello() :
  print "Hi there python!"
hello();


#__END_OF_PYTHON__

[download]
which yields 
$ perl -w x.ppr; ruby -w x.ppr; python x.ppr 
Hi there perl!
Hi there ruby!
Hi there python!

[download]
at least with perl 5.6.0, ruby 1.6.4, and python 1.5.2. All rather old.

An afternoon hack.
zSyUK3 zat vendian org

In reply to Source files which work with perl, python, and ruby by mnc

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