nobu	2010-03-29 18:10:12 +0900 (Mon, 29 Mar 2010)

  New Revision: 27089

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=27089

  Log:
    * lib/optparse.rb (Numeric): accept rationals.

  Modified files:
    trunk/ChangeLog
    trunk/lib/optparse.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 27088)
+++ ChangeLog	(revision 27089)
@@ -1,3 +1,7 @@
+Mon Mar 29 18:10:03 2010  Nobuyoshi Nakada  <nobu@r...>
+
+	* lib/optparse.rb (Numeric): accept rationals.
+
 Mon Mar 29 15:10:39 2010  Nobuyoshi Nakada  <nobu@r...>
 
 	* lib/tempfile.rb (Tempfile#open): re-open with same mode and
Index: lib/optparse.rb
===================================================================
--- lib/optparse.rb	(revision 27088)
+++ lib/optparse.rb	(revision 27089)
@@ -1531,9 +1531,16 @@
 
   #
   # Generic numeric format, converts to Integer for integer format, Float
-  # for float format.
+  # for float format, and Rational for rational format.
   #
-  accept(Numeric, %r"\A[-+]?(?:#{octal}|#{float})"io) {|s,| eval(s) if s}
+  real = "[-+]?(?:#{octal}|#{float})"
+  accept(Numeric, /\A(#{real})(?:\/(#{real}))?/io) {|s, d, n|
+    if n
+      Rational(d, n)
+    elsif s
+      eval(s)
+    end
+  }
 
   #
   # Decimal integer format, to be converted to Integer.

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