From 30b0fe4cc2dc3489c1105fe41050c0116186e61a Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 1 Jul 2009 06:48:23 +0000
Subject: merge revision(s) 22988: 	* lib/pathname.rb (Pathname#sub): set
 $~ in block.binding. 	  [ruby-dev:38173]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_7@23920 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                      |  5 +++++
 lib/pathname.rb                | 16 +++++++++++++++-
 test/pathname/test_pathname.rb |  9 +++++++++
 version.h                      | 11 ++++++-----
 4 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b687051d3d..5b77e9f13f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jul  1 15:46:30 2009  Tanaka Akira  <akr@fsij.org>
+
+	* lib/pathname.rb (Pathname#sub): set $~ in block.binding.
+	  [ruby-dev:38173]
+
 Mon Jun 29 13:18:42 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* lib/fileutils.rb (FileUtils#fu_get_gid): stringify group
diff --git a/lib/pathname.rb b/lib/pathname.rb
index e4ca5489ce..86c4b98ee7 100644
--- a/lib/pathname.rb
+++ b/lib/pathname.rb
@@ -251,7 +251,21 @@ class Pathname
 
   # Return a pathname which is substituted by String#sub.
   def sub(pattern, *rest, &block)
-    self.class.new(@path.sub(pattern, *rest, &block))
+    if block
+      path = @path.sub(pattern, *rest) {|*args|
+        begin
+          old = Thread.current[:pathname_sub_matchdata]
+          Thread.current[:pathname_sub_matchdata] = $~
+          eval("$~ = Thread.current[:pathname_sub_matchdata]", block.binding)
+        ensure
+          Thread.current[:pathname_sub_matchdata] = old
+        end
+        yield *args
+      }
+    else
+      path = @path.sub(pattern, *rest)
+    end
+    self.class.new(path)
   end
 
   if File::ALT_SEPARATOR
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 9b0b9c01e8..f94c123dec 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -381,6 +381,15 @@ class TestPathname < Test::Unit::TestCase
   def pathsub(path, pat, repl) Pathname.new(path).sub(pat, repl).to_s end
   defassert(:pathsub, "a.o", "a.c", /\.c\z/, ".o")
 
+  def test_sub_matchdata
+    result = Pathname("abc.gif").sub(/\..*/) {
+      assert_not_nil($~)
+      assert_equal(".gif", $~[0])
+      ".png"
+    }
+    assert_equal("abc.png", result.to_s)
+  end
+
   def root?(path)
     Pathname.new(path).root?
   end
diff --git a/version.h b/version.h
index 69b80d3e49..fa8604fc2a 100644
--- a/version.h
+++ b/version.h
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.8.7"
-#define RUBY_RELEASE_DATE "2009-06-29"
+#define RUBY_RELEASE_DATE "2009-07-01"
 #define RUBY_VERSION_CODE 187
-#define RUBY_RELEASE_CODE 20090629
-#define RUBY_PATCHLEVEL 175
+#define RUBY_RELEASE_CODE 20090701
+#define RUBY_PATCHLEVEL 176
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 7
 #define RUBY_RELEASE_YEAR 2009
-#define RUBY_RELEASE_MONTH 6
-#define RUBY_RELEASE_DAY 29
+#define RUBY_RELEASE_MONTH 7
+#define RUBY_RELEASE_DAY 1
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];
@@ -29,3 +29,4 @@ RUBY_EXTERN const char *ruby_copyright;
 #define RUBY_RELEASE_NUM RUBY_PATCHLEVEL
 
 
+
-- 
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