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-rw-r--r--lib/stdlib/src/io_lib_pretty.erl12
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl
index dca1b37ef3..ba9d9e8434 100644
--- a/lib/stdlib/src/io_lib_pretty.erl
+++ b/lib/stdlib/src/io_lib_pretty.erl
@@ -722,7 +722,7 @@ printable_list(L, _D, T, latin1) when T < 0 ->
io_lib:printable_latin1_list(L);
printable_list(L, _D, T, Enc) when T >= 0 ->
case slice(L, tsub(T, 2)) of
- {prefix, ""} ->
+ false ->
false;
{prefix, Prefix} when Enc =:= latin1 ->
io_lib:printable_latin1_list(Prefix) andalso {true, Prefix};
@@ -738,11 +738,17 @@ printable_list(L, _D, T, _Uni) when T < 0->
io_lib:printable_list(L).
slice(L, N) ->
- case string:length(L) =< N of
+ try string:length(L) =< N of
true ->
all;
false ->
- {prefix, string:slice(L, 0, N)}
+ case string:slice(L, 0, N) of
+ "" ->
+ false;
+ Prefix ->
+ {prefix, Prefix}
+ end
+ catch _:_ -> false
end.
printable_bin0(Bin, D, T, Enc) ->