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, 15 insertions, 1 deletions

diff --git a/erts/emulator/sys/common/erl_sys_common_misc.c b/erts/emulator/sys/common/erl_sys_common_misc.c
index 0b31c125e5..31ad3b82d5 100644
--- a/erts/emulator/sys/common/erl_sys_common_misc.c
+++ b/erts/emulator/sys/common/erl_sys_common_misc.c
@@ -49,10 +49,15 @@
 static int filename_encoding = ERL_FILENAME_UNKNOWN;
 static int filename_warning = ERL_FILENAME_WARNING_WARNING;
 #if defined(__WIN32__) || defined(__DARWIN__)
-static int user_filename_encoding = ERL_FILENAME_UTF8; /* Default unicode on windows */
+/* Default unicode on windows and MacOS X */
+static int user_filename_encoding = ERL_FILENAME_UTF8; 
 #else
 static int user_filename_encoding = ERL_FILENAME_LATIN1;
 #endif
+/* This controls the heuristic in printing characters in shell and w/ 
+   io:format("~tp", ...) etc. */
+static int printable_character_set = ERL_PRINTABLE_CHARACTERS_LATIN1;
+
 void erts_set_user_requested_filename_encoding(int encoding, int warning)
 {
     user_filename_encoding = encoding;
@@ -69,6 +74,15 @@ int erts_get_filename_warning_type(void)
     return filename_warning;
 }
 
+void erts_set_printable_characters(int range) {
+    /* Not an atomic */
+    printable_character_set = range;
+}
+
+int erts_get_printable_characters(void) {
+    return  printable_character_set;
+}
+
 void erts_init_sys_common_misc(void)
 {
 #if defined(__WIN32__)