diff options
Diffstat (limited to 'lib/pathname.rb')
-rw-r--r-- | lib/pathname.rb | 16 |
1 files changed, 15 insertions, 1 deletions
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 |