[couchdb] 05/06: string:trim() compat for couch_util:trim()

[ja...@apache.org]

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jan pushed a commit to branch fix/2.1.2-sec
in repository https://gitbox.apache.org/repos/asf/couchdb.git

commit 540c22e7e1fb768985ee4e52c3f40babd29e43a3
Author: Jan Lehnardt <ja...@apache.org>
AuthorDate: Sun Jun 17 17:17:37 2018 +0200

    string:trim() compat for couch_util:trim()
---
 src/couch/src/couch_util.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/couch/src/couch_util.erl b/src/couch/src/couch_util.erl
index 72ee73f..936b562 100644
--- a/src/couch/src/couch_util.erl
+++ b/src/couch/src/couch_util.erl
@@ -338,6 +338,9 @@ is_whitespace(_Else) -> false.
 
 
 % removes leading and trailing whitespace from a string
+trim(String) when is_binary(String) ->
+    % mirror string:trim() behaviour of returning a binary when a binary is passed in
+    ?l2b(trim(?b2l(String)));
 trim(String) ->
     String2 = lists:dropwhile(fun is_whitespace/1, String),
     lists:reverse(lists:dropwhile(fun is_whitespace/1, lists:reverse(String2))).