This version is slightly more compact by using map to navigate through the tree. A wrong path will return undef. I use the grep because so you can add empty "/" at the beginning or end of the filename, at your will.
use Data::Dumper;
$VAR1 = {
'misc' => {},
'docs' => {
'howtos' => {
'email' => {
'index.html' => {
'date' => '21-1-2004',
'size' => '691'
}
},
'ftp' => {},
'ssh' => {}
}
}
};
$fs = "/docs/howtos/email/";
$v = $VAR1;
# this is the actual processing
map { $v = $v->{$_} } grep { length > 0 } split m./., $fs ;
print Dumper $v;
Enjoy!
Note. I have been reading Paul Graham's On Lisp lately, does it show? :)
Note: I submitted this comment before seeing's BrowserUk's, looks like we had the same idea.
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