rewrite.rb in facets-2.9.0.pre.1

- old
+ new

@@ -11,16 +11,18 @@
   #
   # Mode can either be "b" or "+" and specifies to open the file in
   # binary mode (no mapping of the plattform's newlines to "\n" is
   # done) or to append to it.
   #
-  #   # Reverse contents of "message"
-  #   File.rewrite("message") { |str| str.reverse }
+  # Assuming we had a file 'message.txt' and had a binary file 'binary.dat'.
   #
-  #   # Replace "foo" by "bar" in "binary"
-  #   File.rewrite("binary", "b") { |str| str.gsub("foo", "bar") }
+  #   # Reverse contents of "message.txt"
+  #   File.rewrite("tmp/message.txt") { |str| str.reverse }
   #
+  #   # Replace "foo" by "bar" in "binary.dat".
+  #   File.rewrite("tmp/binary.dat", "b") { |str| str.gsub("foo", "bar") }
+  #
   # IMPORTANT: The old version of this method required in place modification
   # of the file string. The new version will write whatever the block
   # returns instead!!!
   #
   # CREDIT: George Moschovitis
@@ -52,14 +54,14 @@
 
   # In place version of #rewrite. This version of method requires that the
   # string be modified in place within the block.
   #
   #   # Reverse contents of "message"
-  #   File.rewrite("message") { |str| str.reverse! }
+  #   File.rewrite("tmp/message.txt") { |str| str.reverse! }
   #
   #   # Replace "foo" by "bar" in "binary"
-  #   File.rewrite("binary", "b") { |str| str.gsub!("foo", "bar") }
+  #   File.rewrite("tmp/binary.dat", "b") { |str| str.gsub!("foo", "bar") }
   #
   def self.rewrite!(name, mode = "") #:yield:
     unless block_given?
       raise(ArgumentError, "Need to supply block to File.rewrite")
     end
@@ -77,10 +79,10 @@
 
     begin
       yield(new_str)
     ensure
       if old_str != new_str
-        open(name, "w#{mode}") { |file| file.write(str) }
+        open(name, "w#{mode}") { |file| file.write(new_str) }
       end
     end
   end
 
 end