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erlangerlang-shell

Disable pretty writing of strings to file

I can use shell:strings(false) to disable the pretty writing of strings in shell.

I am saving a list of integers to file and need the numbers, not string. eg.

[[8,1,3,100,35,25,10,20,25],"+\v%"],

should have [57,63,11] at the end instead.

63> "9?\v".
[57,63,11]

How do I change this?

generate(Num) -> 
  Result = generate(Num, []),
  Dedup = deduplicated(Result),
  file:write_file("./react/src/Data/gennedmons", io_lib:fwrite("~p.\n", [Dedup])),
  Dedup.

I have tried writin with ~w, too. No apparent effect.

Solution

  • ~w seems to do what you want in this simple test. Does this not match what you're doing?

    1> file:write_file("foo", io_lib:fwrite("~p~n", ["9?\v"])).
ok
2>
[2]+  Stopped                 erl
~ $ cat foo
"9?\v"
~ $ fg
erl

2> file:write_file("foo", io_lib:fwrite("~w~n", ["9?\v"])).
ok
3>
[2]+  Stopped                 erl
~ $ cat foo
[57,63,11]
~ $