[sup-devel] [PATCH 03/10] add String#check

From: Rich Lane <rlane@club.cc.cmu.edu>
To: sup-devel@rubyforge.org
Subject: [sup-devel] [PATCH 03/10] add String#check
Date: Thu, 31 Dec 2009 15:36:51 -0800	[thread overview]
Message-ID: <1262302618-20503-4-git-send-email-rlane@club.cc.cmu.edu> (raw)
In-Reply-To: <1262302618-20503-3-git-send-email-rlane@club.cc.cmu.edu>

---
 lib/sup/util.rb |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/lib/sup/util.rb b/lib/sup/util.rb
index 5f68d0d..fc90350 100644
--- a/lib/sup/util.rb
+++ b/lib/sup/util.rb
@@ -296,6 +296,16 @@ class String
   ##
   ## split_on will be passed to String#split, so you can leave this nil for space.
   def to_set_of_symbols split_on=nil; Set.new split(split_on).map { |x| x.strip.intern } end
+
+  class CheckError < ArgumentError; end
+  def check
+    begin
+      fail "unexpected encoding #{encoding}" if respond_to?(:encoding) && !(encoding == Encoding::UTF_8 || encoding == Encoding::ASCII)
+      fail "invalid encoding" if respond_to?(:valid_encoding?) && !valid_encoding?
+    rescue
+      raise CheckError.new($!.message)
+    end
+  end
 end
 
 class Numeric
-- 
1.6.3.3

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