I then loop through the xml file again to find and print out all the actual blog posts. On each pass I search the entire temporary file for any comments that start with the post url and add those comments to the post

...

Is there a more efficient way of doing this?

Yes. Store the the comments with the post URL as the key in an hash of arrays, ie 

my %comments = (
   'http://url.to/post' => [ $comment1, $comment2, .. ],
    ...
)

[download]

And on the second pass simply look it up.

If the data is too large and doesn't fit all into memory, use something like DBM::Deep to store it in a file, but preserve fast lookup.

In reply to Re: Use temporary file or cache by moritz
in thread Use temporary file or cache by andrewheiss

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