Map with collection as input, instead of arguments

[swistak35]

What is really missing in shell which is very functional is treating input as an array.
It's different approach than current functions in this library.
For example, I have a file like this:

~% cat testlines 
foo
bar baz
jajco

And if I had some time ago following use case:

~% cat testlines | while read line; do echo $line | base64; done
Zm9vCg==
YmFyIGJhego=
amFqY28K

It would be great to run this like that:

~% cat testlines | mapl 'base64'

Do you think it would fine to include this in your library?

[Tarrasch]

That would be totally awesome! This is what I wanted for issue #11 though.

I played around a bit, check this out:

$ cat testlines | each 'echo $x | base64'
Zm9vCg==
YmFyIGJhego=
amFqY28K

Would you be interested in trying to implement this? :)

[swistak35]

Sure. : )

[Tarrasch]

By the way, I think you should name it eachl or eachi (I think i as in input). Since map is the 'never-does'harm' function. But that's not what we want here.

[swistak35]

Hi, sorry for no response - I sat once and tried to code it, but my shell-fu is definitely not high enough.

[Tarrasch]

Yea, shell languages are hell, that's why I rewrote antigen in Haskell :)

[NightMachinery]

I played around, and this seems to work:

each 'echo $1' "${(f@)$(<~/some-file)}"

[Tarrasch]

Yes. But we want a functional left-to-right feeling in this library. I promise I'm still gonna review any good pull requests. :)