- handy module collection for string operation and calculation.
- export modules to use in repl
touch data/a.in.txt
stack ghci
run (some func) "a"
x <- words <$> readFile (inData "a.in.txt")
-- some operation
writeFile outfile x
writeFile outfile <$> mkIn1k "id" . words <$> readFile infile
writeFile outfile <$> mkLikeE "val" . words <$> readFile infile