caching custom tag results

[Mike Dewhirst <De...@UCLES.org.uk>]

If anybody has done this before, what is a good way of caching custom tag
results? For instance, I have a custom tag, that generates image tags (by
dynamically building up the url). I'd rather it didn't go through the same
process 4 times for the same image. How can I get around this?

Thanks for any advice/suggestion.


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