That is no great deal since the requiring is done only once. The package holds a lexically scoped hash of anonymous subs keyed on the filename. On a second call of servlet with a specific filename that sub is returned and can be used; the generated whatever.al must not be required twice - except on code change of the source. That is what the timestamp checking is about: if the source file is newer, the file is deleted from %INC and is thus required again. The new sub overwrites the old one. In short, this happens: 
package Foo;
$f = 'testsub.pl';
$s = eval "require $f";
delete $INC{$f};
$t = eval "require $f";
print "$_\n" for ($s,$t);
__END__
CODE(0x8167948)
CODE(0x81679a8)

[download]
And yes, I have to write a testsuite. (is there a leak?)
And yes, having a synopsis to talk about would be nice.

I'll update the code in the previous post sometime really soon (today or tomorrow).

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^2: Follow up to RFC: Templating without a System (required) by shmem
in thread Follow up to RFC: Templating without a System by shmem

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