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A comment on M4 as a templating language (2020). Parent comment

Re:M4 as a templating language (2020) by bloopernova on Thursday July 29, 2021 @08:29AM (#27995639)
Can anyone explain how m4 is different to tr?
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Re:M4 as a templating language (2020) by timonoko on Thursday July 29, 2021 @08:34AM (#27995680)
I can.

    tr translates letters, m4 translates words and simple expressions.
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