[PATCH:xscope 17/24] Print UTF8_STRING properties as text if locale uses UTF-8 charset

[Alan Coopersmith]

Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
---
 configure.ac |    2 +-
 prtype.c     |   19 ++++++++++++++++---
 scope.c      |   24 +++++++++++++++++++++++-
 scope.h      |    3 ++-
 4 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index 74d0d53..dee7b66 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,7 +70,7 @@ fi
 PKG_CHECK_MODULES(XSCOPE, [xproto >= 7.0.17 $XTRANS_PKG])
 
 AC_CHECK_FUNCS([getdtablesize])
-AC_CHECK_HEADERS([sys/filio.h])
+AC_CHECK_HEADERS([sys/filio.h langinfo.h])
 
 dnl Allow checking code with lint, sparse, etc.
 XORG_WITH_LINT
diff --git a/prtype.c b/prtype.c
index e5d26a7..04f36cf 100644
--- a/prtype.c
+++ b/prtype.c
@@ -1038,9 +1038,22 @@ PrintPropertyValues(const unsigned char *buf, uint32_t type /* atom */,
                     uint8_t unit, uint32_t num, const char *name)
 {
     if (type == 31 /* string */)
-        PrintString8(buf, num * unit, name);
-    else
-        PrintBytes(buf, num * unit, name);
+        return PrintString8(buf, num * unit, name);
+    else {
+        const char *typename = FindAtomName(type);
+
+        if (typename) {
+            if (strcmp(typename, "UTF8_STRING") == 0) {
+                if (IsUTF8locale)
+                    return PrintString8(buf, num * unit, name);
+                else
+                    return PrintBytes(buf, num * unit, name);
+            }
+        }
+    }
+
+    /* When all else fails, print raw bytes */
+    return PrintBytes(buf, num * unit, name);
 }
 
 /* ************************************************************ */
diff --git a/scope.c b/scope.c
index d97b316..f3574cc 100644
--- a/scope.c
+++ b/scope.c
@@ -68,6 +68,11 @@
 #include <netdb.h>              /* struct servent * and struct hostent * */
 #include <errno.h>              /* for EINTR, EADDRINUSE, ... */
 
+#include <locale.h>
+#ifdef HAVE_LANGINFO_H
+#include <langinfo.h>
+#endif
+
 
 /* ********************************************** */
 /*                                                */
@@ -86,7 +91,8 @@ static FD ConnectToClient(FD ConnectionSocket);
 static void DataFromClient(FD fd);
 static void SetUpStdin(void);
 
-long TranslateText = 0;
+char TranslateText = 0;
+char IsUTF8locale = 0;
 char ScopeEnabled = 1;
 char HandleSIGUSR1 = 0;
 char DoAudio = 0;
@@ -661,6 +667,21 @@ Usage(void)
 }
 
 static void
+InitializeLocale(void)
+{
+    setlocale(LC_CTYPE, "");
+
+#ifdef HAVE_LANGINFO_H
+    {
+        const char *charmap = nl_langinfo (CODESET);
+
+        if (charmap != NULL && strcmp(charmap, "UTF-8") == 0)
+            IsUTF8locale = 1;
+    }
+#endif
+}
+
+static void
 ScanArgs(int argc, char **argv)
 {
     XVerbose = 1; /* default verbose-ness level */
@@ -790,6 +811,7 @@ ScanArgs(int argc, char **argv)
 int
 main(int argc, char **argv)
 {
+    InitializeLocale();
     ScanArgs(argc, argv);
     InitializeFD();
     InitializeX11();
diff --git a/scope.h b/scope.h
index 2fb627d..8dc6b31 100644
--- a/scope.h
+++ b/scope.h
@@ -121,7 +121,8 @@ extern char HandleSIGUSR1;
 extern char Leader[];
 extern long ServerBasePort;
 extern char ScopeEnabled;
-extern long TranslateText;
+extern char TranslateText;
+extern char IsUTF8locale;
 
 #include "proto.h"
 
-- 
1.7.9.2