[Haskell-cafe] Turtle library : grepping on Text vs FilePath

Ruben Astudillo ruben.astud at gmail.com
Wed Jun 7 05:16:04 UTC 2017

Dear list

On the Turtle library, the grep function got the following signature

    grep :: Pattern a -> Shell Line -> Shell Line

For it to filter output of the `ls :: FilePath -> Shell FilePath` I got
to fmap and transform via de Turtle.Format or Turtle.Line modules. Is
this an indicator I shouldn't be doing this? Is the library telling me
to use `find`? or is just accidental?

-- Ruben

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