From 41b856a2cb270ef807beaa84afe1bb890de5f237 Mon Sep 17 00:00:00 2001
From: Siri Hansen <siri@erlang.org>
Date: Thu, 24 Aug 2017 12:18:53 +0200
Subject: kernel: update simple error logger to print Unicode strings

If printable range is set to 'unicode', the simple error logger will now
recognize code points > 255 and print lists containing these as strings.
---
 lib/kernel/src/error_logger.erl | 29 +++++++++--------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

(limited to 'lib/kernel/src')

diff --git a/lib/kernel/src/error_logger.erl b/lib/kernel/src/error_logger.erl
index 9bf8547745..f07ec52cfa 100644
--- a/lib/kernel/src/error_logger.erl
+++ b/lib/kernel/src/error_logger.erl
@@ -499,27 +499,16 @@ display4(A = [_|_]) ->
 display4(A) ->
     erlang:display(A).
 
-string_p([]) ->
+
+string_p(Term) when is_list(Term) ->
+    string_p1(lists:flatten(Term));
+string_p(_Term) ->
+    false.
+
+string_p1([]) ->
     false;
-string_p(Term) ->
-    string_p1(Term).
-
-string_p1([H|T]) when is_integer(H), H >= $\s, H < 255 ->
-    string_p1(T);
-string_p1([$\n|T]) -> string_p1(T);
-string_p1([$\r|T]) -> string_p1(T);
-string_p1([$\t|T]) -> string_p1(T);
-string_p1([$\v|T]) -> string_p1(T);
-string_p1([$\b|T]) -> string_p1(T);
-string_p1([$\f|T]) -> string_p1(T);
-string_p1([$\e|T]) -> string_p1(T);
-string_p1([H|T]) when is_list(H) ->
-    case string_p1(H) of
-	true -> string_p1(T);
-	_    -> false
-    end;
-string_p1([]) -> true;
-string_p1(_) ->  false.
+string_p1(FlatList) ->
+    io_lib:printable_list(FlatList).
 
 -spec limit_term(term()) -> term().
 
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