Erlang Trim Thu, 11 Feb 2010 13:30:13 -0500

This is a nice piece of code that I stumbled upon a few months ago while wanting to string the white space off the end of a string. Thanks go to Steve Davis for his contribution.


-module(trim).
-author('Steve Davis < steven · charles · davis ? gmail · com >').
-export([trim/1]).

trim(Bin) when is_binary(Bin) ->
    list_to_binary(trim(binary_to_list(Bin)));
trim(String) when is_list(String) ->
    String2 = lists:dropwhile(fun is_whitespace/1, String),
    lists:reverse(lists:dropwhile(fun is_whitespace/1, lists:reverse(String2))).

is_whitespace($\s) -> true;
is_whitespace($\t) -> true;
is_whitespace($\n) -> true;
is_whitespace($\r) -> true;
is_whitespace(_Else) -> false.

Comments:

  philipp Fri, 7 May 2010 04:15:59 -0400
hi, maybe this works for you aswell: 1> string:strip("something ", right, $\s). "something" 2> string:strip("something\n", right, $\n). "something" Cheers, Philipp...
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