* {ext,lib,test}/**/*.rb: removed trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22784 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 67 insertions, 67 deletions

diff --git a/lib/pstore.rb b/lib/pstore.rb
index fdc518eaec..7b7080338e 100644
--- a/lib/pstore.rb
+++ b/lib/pstore.rb
@@ -15,49 +15,49 @@ require "thread"
 #
 # PStore implements a file based persistence mechanism based on a Hash.  User
 # code can store hierarchies of Ruby objects (values) into the data store file
-# by name (keys).  An object hierarchy may be just a single object.  User code 
+# by name (keys).  An object hierarchy may be just a single object.  User code
 # may later read values back from the data store or even update data, as needed.
-# 
+#
 # The transactional behavior ensures that any changes succeed or fail together.
 # This can be used to ensure that the data store is not left in a transitory
 # state, where some values were updated but others were not.
-# 
-# Behind the scenes, Ruby objects are stored to the data store file with 
-# Marshal.  That carries the usual limitations.  Proc objects cannot be 
+#
+# Behind the scenes, Ruby objects are stored to the data store file with
+# Marshal.  That carries the usual limitations.  Proc objects cannot be
 # marshalled, for example.
 #
 # == Usage example:
-# 
+#
 #  require "pstore"
-#  
+#
 #  # a mock wiki object...
 #  class WikiPage
 #    def initialize( page_name, author, contents )
 #      @page_name = page_name
 #      @revisions = Array.new
-#      
+#
 #      add_revision(author, contents)
 #    end
-#    
+#
 #    attr_reader :page_name
-#    
+#
 #    def add_revision( author, contents )
 #      @revisions << { :created  => Time.now,
 #                      :author   => author,
 #                      :contents => contents }
 #    end
-#    
+#
 #    def wiki_page_references
 #      [@page_name] + @revisions.last[:contents].scan(/\b(?:[A-Z]+[a-z]+){2,}/)
 #    end
-#    
+#
 #    # ...
 #  end
-#  
+#
 #  # create a new page...
 #  home_page = WikiPage.new( "HomePage", "James Edward Gray II",
 #                            "A page about the JoysOfDocumentation..." )
-#  
+#
 #  # then we want to update page data and the index together, or not at all...
 #  wiki = PStore.new("wiki_pages.pstore")
 #  wiki.transaction do  # begin transaction; do all of this or none of it
@@ -68,9 +68,9 @@ require "thread"
 #    # update wiki index...
 #    wiki[:wiki_index].push(*home_page.wiki_page_references)
 #  end                   # commit changes to wiki data store file
-#  
+#
 #  ### Some time later... ###
-#  
+#
 #  # read wiki data...
 #  wiki.transaction(true) do  # begin read-only transaction, no changes allowed
 #    wiki.roots.each do |data_root_name|
@@ -102,7 +102,7 @@ class PStore
   # The error type thrown by all PStore methods.
   class Error < StandardError
   end
-  
+
   # Whether PStore should do its best to prevent file corruptions, even when under
   # unlikely-to-occur error conditions such as out-of-space conditions and other
   # unusual OS filesystem errors. Setting this flag comes at the price in the form
@@ -112,13 +112,13 @@ class PStore
   # all POSIX platforms: Linux, MacOS X, FreeBSD, etc). The default value is false.
   attr_accessor :ultra_safe
 
-  # 
-  # To construct a PStore object, pass in the _file_ path where you would like 
+  #
+  # To construct a PStore object, pass in the _file_ path where you would like
   # the data to be stored.
   #
   # PStore objects are always reentrant. But if _thread_safe_ is set to true,
   # then it will become thread-safe at the cost of a minor performance hit.
-  # 
+  #
   def initialize(file, thread_safe = false)
     dir = File::dirname(file)
     unless File::directory? dir
@@ -142,10 +142,10 @@ class PStore
   def in_transaction
     raise PStore::Error, "not in transaction" unless @transaction
   end
-  # 
+  #
   # Raises PStore::Error if the calling code is not in a PStore#transaction or
   # if the code is in a read-only PStore#transaction.
-  # 
+  #
   def in_transaction_wr()
     in_transaction()
     raise PStore::Error, "in read-only transaction" if @rdonly
@@ -153,9 +153,9 @@ class PStore
   private :in_transaction, :in_transaction_wr
 
   #
-  # Retrieves a value from the PStore file data, by _name_.  The hierarchy of 
+  # Retrieves a value from the PStore file data, by _name_.  The hierarchy of
   # Ruby objects stored under that root _name_ will be returned.
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -164,12 +164,12 @@ class PStore
     @table[name]
   end
   #
-  # This method is just like PStore#[], save that you may also provide a 
-  # _default_ value for the object.  In the event the specified _name_ is not 
-  # found in the data store, your _default_ will be returned instead.  If you do 
-  # not specify a default, PStore::Error will be raised if the object is not 
+  # This method is just like PStore#[], save that you may also provide a
+  # _default_ value for the object.  In the event the specified _name_ is not
+  # found in the data store, your _default_ will be returned instead.  If you do
+  # not specify a default, PStore::Error will be raised if the object is not
   # found.
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -188,11 +188,11 @@ class PStore
   # Stores an individual Ruby object or a hierarchy of Ruby objects in the data
   # store file under the root _name_.  Assigning to a _name_ already in the data
   # store clobbers the old data.
-  # 
+  #
   # == Example:
-  # 
+  #
   #  require "pstore"
-  #  
+  #
   #  store = PStore.new("data_file.pstore")
   #  store.transaction do  # begin transaction
   #    # load some data into the store...
@@ -200,7 +200,7 @@ class PStore
   #    store[:obj_heirarchy] = { "Kev Jackson" => ["rational.rb", "pstore.rb"],
   #                              "James Gray"  => ["erb.rb", "pstore.rb"] }
   #  end                   # commit changes to data store file
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction and it cannot
   # be read-only.  It will raise PStore::Error if called at any other time.
   #
@@ -210,7 +210,7 @@ class PStore
   end
   #
   # Removes an object hierarchy from the data store, by _name_.
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction and it cannot
   # be read-only.  It will raise PStore::Error if called at any other time.
   #
@@ -221,7 +221,7 @@ class PStore
 
   #
   # Returns the names of all object hierarchies currently in the store.
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -231,7 +231,7 @@ class PStore
   end
   #
   # Returns true if the supplied _name_ is currently in the data store.
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -247,22 +247,22 @@ class PStore
   #
   # Ends the current PStore#transaction, committing any changes to the data
   # store immediately.
-  # 
+  #
   # == Example:
-  # 
+  #
   #  require "pstore"
-  #   
+  #
   #  store = PStore.new("data_file.pstore")
   #  store.transaction do  # begin transaction
   #    # load some data into the store...
   #    store[:one] = 1
   #    store[:two] = 2
-  #  
+  #
   #    store.commit        # end transaction here, committing changes
-  #  
+  #
   #    store[:three] = 3   # this change is never reached
   #  end
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -274,21 +274,21 @@ class PStore
   #
   # Ends the current PStore#transaction, discarding any changes to the data
   # store.
-  # 
+  #
   # == Example:
-  # 
+  #
   #  require "pstore"
-  #   
+  #
   #  store = PStore.new("data_file.pstore")
   #  store.transaction do  # begin transaction
   #    store[:one] = 1     # this change is not applied, see below...
   #    store[:two] = 2     # this change is not applied, see below...
-  #  
+  #
   #    store.abort         # end transaction here, discard all changes
-  #  
+  #
   #    store[:three] = 3   # this change is never reached
   #  end
-  # 
+  #
   # *WARNING*:  This method is only valid in a PStore#transaction.  It will
   # raise PStore::Error if called at any other time.
   #
@@ -300,19 +300,19 @@ class PStore
 
   #
   # Opens a new transaction for the data store.  Code executed inside a block
-  # passed to this method may read and write data to and from the data store 
+  # passed to this method may read and write data to and from the data store
   # file.
-  # 
+  #
   # At the end of the block, changes are committed to the data store
-  # automatically.  You may exit the transaction early with a call to either 
+  # automatically.  You may exit the transaction early with a call to either
   # PStore#commit or PStore#abort.  See those methods for details about how
-  # changes are handled.  Raising an uncaught Exception in the block is 
+  # changes are handled.  Raising an uncaught Exception in the block is
   # equivalent to calling PStore#abort.
-  # 
+  #
   # If _read_only_ is set to +true+, you will only be allowed to read from the
   # data store during the transaction and any attempts to change the data will
   # raise a PStore::Error.
-  # 
+  #
   # Note that PStore does not support nested transactions.
   #
   def transaction(read_only = false, &block)  # :yields:  pstore
@@ -326,11 +326,11 @@ class PStore
       if file
         begin
           @table, checksum, original_data_size = load_data(file, read_only)
-          
+
           catch(:pstore_abort_transaction) do
             value = yield(self)
           end
-          
+
           if !@abort && !read_only
             save_data(checksum, original_data_size, file)
           end
@@ -349,19 +349,19 @@ class PStore
   ensure
     @transaction = false
   end
-  
+
   private
   # Constant for relieving Ruby's garbage collector.
   EMPTY_STRING = ""
   EMPTY_MARSHAL_DATA = Marshal.dump({})
   EMPTY_MARSHAL_CHECKSUM = Digest::MD5.digest(EMPTY_MARSHAL_DATA)
-  
+
   class DummyMutex
     def synchronize
       yield
     end
   end
-  
+
   #
   # Open the specified filename (either in read-only mode or in
   # read-write mode) and lock it for reading or writing.
@@ -391,7 +391,7 @@ class PStore
       return file
     end
   end
-  
+
   # Load the given PStore file.
   # If +read_only+ is true, the unmarshalled Hash will be returned.
   # If +read_only+ is false, a 3-tuple will be returned: the unmarshalled
@@ -427,7 +427,7 @@ class PStore
       [table, checksum, size]
     end
   end
-  
+
   def on_windows?
     is_windows = RUBY_PLATFORM =~ /mswin/  ||
                  RUBY_PLATFORM =~ /mingw/  ||
@@ -438,7 +438,7 @@ class PStore
     end
     is_windows
   end
-  
+
   # Check whether Marshal.dump supports the 'canonical' option. This option
   # makes sure that Marshal.dump always dumps data structures in the same order.
   # This is important because otherwise, the checksums that we generate may differ.
@@ -454,7 +454,7 @@ class PStore
     end
     result
   end
-  
+
   def save_data(original_checksum, original_file_size, file)
     # We only want to save the new data if the size or checksum has changed.
     # This results in less filesystem calls, which is good for performance.
@@ -464,7 +464,7 @@ class PStore
       new_data = dump(@table)
     end
     new_checksum = Digest::MD5.digest(new_data)
-    
+
     if new_data.size != original_file_size || new_checksum != original_checksum
       if @ultra_safe && !on_windows?
         # Windows doesn't support atomic file renames.
@@ -473,10 +473,10 @@ class PStore
         save_data_with_fast_strategy(new_data, file)
       end
     end
-    
+
     new_data.replace(EMPTY_STRING)
   end
-  
+
   def save_data_with_atomic_file_rename_strategy(data, file)
     temp_filename = "#{@filename}.tmp.#{Process.pid}.#{rand 1000000}"
     temp_file = File.new(temp_filename, WR_ACCESS)
@@ -492,7 +492,7 @@ class PStore
       temp_file.close
     end
   end
-  
+
   def save_data_with_fast_strategy(data, file)
     file.rewind
     file.truncate(0)