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-rw-r--r--lib/compiler/test/inline_SUITE_data/comma_splitter.erl18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/compiler/test/inline_SUITE_data/comma_splitter.erl b/lib/compiler/test/inline_SUITE_data/comma_splitter.erl
new file mode 100644
index 0000000000..eaa89e0edc
--- /dev/null
+++ b/lib/compiler/test/inline_SUITE_data/comma_splitter.erl
@@ -0,0 +1,18 @@
+-module(comma_splitter).
+-export([?MODULE/0]).
+
+?MODULE() ->
+ {<<"def">>,<<"cba">>} = split_at_comma(<<"abc, def">>, <<>>),
+ ok.
+
+strip_leading_ws(<<N, Rest/binary>>) when N =< $\s ->
+ strip_leading_ws(Rest);
+strip_leading_ws(B) ->
+ B.
+
+split_at_comma(<<>>, Accu) ->
+ {<<>>, Accu};
+split_at_comma(<<$,, Rest/binary>>, Accu) ->
+ {strip_leading_ws(Rest), Accu};
+split_at_comma(<<C, Rest/binary>>, Accu) ->
+ split_at_comma(Rest, <<C, Accu/binary>>).