Add display() for displaying icky scalars.

p4raw-id: //depot/perl@13513

1 files changed, 6 insertions, 0 deletions

diff --git a/t/test.pl b/t/test.pl
index ca4af688dc..ac6bbb7938 100644
--- a/t/test.pl
+++ b/t/test.pl
@@ -263,6 +263,12 @@ sub BAILOUT {
 }
 
 
+# A way to display scalars containing control characters and Unicode.
+sub display {
+    join("", map { $_ > 255 ? sprintf("\\x{%x}", $_) : chr($_) =~ /[[:cntrl:]]/ ? sprintf("\\%03o", $_) : chr($_) } unpack("U*", $_[0]));
+}
+
+
 # A somewhat safer version of the sometimes wrong $^X.
 BEGIN: {
     eval {