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[sup-devel] [PATCH 04/10] add String#ascii

---
 lib/sup/util.rb |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/lib/sup/util.rb b/lib/sup/util.rb
index fc90350..508bcee 100644
--- a/lib/sup/util.rb
+++ b/lib/sup/util.rb
@@ -306,6 +306,19 @@ class String
       raise CheckError.new($!.message)
     end
   end
+
+  def ascii
+    out = ""
+    each_byte do |b|
+      if (b & 128) != 0
+        out << "\\x#{b.to_s 16}"
+      else
+        out << b.chr
+      end
+    end
+    out.force_encoding Encoding::UTF_8 if out.respond_to? :force_encoding
+    out
+  end
 end
 
 class Numeric
-- 
1.6.3.3

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