Data.String.Interpolate.Util

Remove indentation as much as possible while preserving relative indentation levels.

unindent is useful in combination with i to remove leading spaces that resulted from code indentation. That way you can freely indent your string literals without the indentation ending up in the resulting strings.

Here is an example:

>>> :set -XQuasiQuotes>>> import Data.String.Interpolate>>> import Data.String.Interpolate.Util>>> :{ putStr $ unindent [i|     def foo       23     end   |]:}def foo  23end

To allow this, two additional things are being done, apart from removing indentation:

• One empty line at the beginning will be removed and

• if the last newline character ("\n") is followed by spaces, the spaces are removed.