Oh, and I nearly forgot the ob. version using an XML-based language, interpreted of course using XML::Twig:

#!/usr/bin/perl -w
use strict; 

use XML::Twig;

eval script2perl( XML::Twig->new->parse( \*DATA));

sub script2perl
  { my $t= shift;
    foreach my $for ($t->findnodes( '//for'))
      { if( my $range= $for->att( 'range'))
          { $for->prefix( "for ($range) {\n")
                ->suffix( "\n}\n")
                ->erase;
          }
      }
    foreach my $print ($t->findnodes( '//print'))
      { $print->prefix( q{ print "})
              ->suffix( q{";})
              ->erase;
      }

    return $t->root->text
  }


__DATA__
<script>
  <for range="1..500">
    <print>I will not throw paper airplanes in class.\n</print>
  </for>
</script>
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