Is there some reason not to use your own solution? 
print filterText("Here's some text!");

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A search and replace and you are away. Any other solution seems likely to be more complex. You could for instance redirect STDOUT to a file and fork a second process to filter then print data as it arrives in this file. Seems overly complex though.

tachyon

In reply to Re: Tacking a function on to STDOUT? by tachyon
in thread Tacking a function on to STDOUT? by Anonymous Monk

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