Merge branch 'pan/unicode_printable_ranges'

* pan/unicode_printable_ranges:
  Adapt stdlib tests to ~tp detecting latin1 binaries
  Update primary bootstrap
  Make wx debugger use +pc flag when applicable
  Correct misspelled comments and space at lin ends
  Make ~tp output latin1 binaries as strings if possible
  Leave the +pc handling to io and io_lib_pretty
  Remove newly introduced warning in erlexec.c
  Make shell_SUITE:otp_10302 use +pc unicode when needed
  Fix io_proto_SUITE to handle the new io_lib_pretty:print
  Add testcase for +pc and io:printable_range/0
  Make printing of UTF-8 in binaries behave like lists.
  Document +pc flag and io:printable_range/0
  Add usage of and spec for io:printable_range/0
  Add +pc {latin1|unicode} switch and io:printable_range/0
  Fix some Unicode issues

OTP-18084

1 files changed, 8 insertions, 0 deletions

diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 80982f3760..fa53fd0937 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -2747,3 +2747,11 @@ int erts_utf8_to_latin1(byte* dest, const byte* source, int slen)
     return dp - dest;
 }
 
+BIF_RETTYPE io_printable_range_0(BIF_ALIST_0)
+{
+    if (erts_get_printable_characters() == ERL_PRINTABLE_CHARACTERS_UNICODE) {
+	BIF_RET(am_unicode);
+    } else {
+	BIF_RET(am_latin1);
+    }
+}