Well, kinda. With grep, for each item you can only:
- Leave the item alone and not include it in the result
- Modify the original item and not include it in the result
- Include the original item, unmodified, in the result
- Modify the original item and include this exact
same modification in the result
With map you can do all of the above and also do:
- Leave the item alone and include one or more
values in place of that item in the result
- Modify the item and include one or more
values in place of that item in the result, with the ability
to even include the original (unmodified) item in the result.
So using grep to return something other than a subset of
the original list is quite restricted and is probably an
indication that you shouldn't be using grep. (:
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tye
(but my friends call me "Tye")
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