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The `filtermap` functional below allows to perform the standard `map` and `filter` operations in one go. The mapping function has to return a `Maybe` monad, and values of `Nothing` are filtered out.
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posted 13 years ago by deepsoul
URLs:
<http://www.chiark.greenend.org.uk/~sgtatham/utils/> <http://kitenet.net/~joey/code/moreutils/>
Use one of these nifty utilities to automatically process files in-place. Both store the results of programs which write to stdout until t...
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posted 15 years ago by deepsoul