* lib/csv.rb (CSV.parse): [CAUTION] behavior changed.  in the past,
          CSV.parse accepts a filename to be read-opened (it was just a
          shortcut of CSV.open(filename, 'r')).  now CSV.parse accepts a
          string or a stream to be parsed e.g.
          CSV.parse("1,2\n3,r") #=> [['1', '2'], ['3', '4']]

        * lib/csv.rb: CSV::Row and CSV::Cell are deprecated.  these classes
          are removed in the future.  in the new csv.rb, row is represented
          as just an Array.  since CSV::Row was a subclass of Array, it won't
          hurt almost all programs except one which depended CSV::Row#match.
          and a cell is represented as just a String or nil(NULL).  this
          change will cause widespread destruction.

              CSV.open("foo.csv", "r") do |row|
                row.each do |cell|
                  if cell.is_null       # using Cell#is_null
                    p "(NULL)"
                  else
                    p cell.data         # using Cell#data
                  end
                end
              end

            must be just;

              CSV.open("foo.csv", "r") do |row|
                row.each do |cell|
                  if cell.nil?
                    p "(NULL)"
                  else
                    p cell
                  end
                end
              end

        * lib/csv.rb: [CAUTION] record separator(CR, LF, CR+LF) behavior
          change.  CSV.open, CSV.parse, and CSV,generate now do not force
          opened file binmode.  formerly it set binmode explicitly.

          with CSV.open, binmode of opened file depends the given mode
          parameter "r", "w", "rb", and "wb".  CSV.parse and CSV.generate open
          file with "r" and "w".

          setting mode properly is user's responsibility now.

        * lib/csv.rb: accepts String as a fs (field separator/column separator)
          and rs (record separator/row separator)

        * lib/csv.rb (CSV.read, CSV.readlines): added.  works as IO.read and
          IO.readlines in CSV format.

        * lib/csv.rb: added CSV.foreach(path, rs = nil, &block).  CSV.foreach
          now does not handle "| cmd" as a path different from IO.foreach.
          needed?

        * test/csv/test_csv.rb: updated.

        * test/ruby/test_float.rb: added test_strtod to test Float("0").


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6424 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* numeric.c (flo_to_s): tweak output string based to preserve
  decimal point and to remove trailing zeros.  [ruby-talk:97891]

* string.c (rb_str_index_m): use unsigned comparison for T_FIXNUM
  search.  [ruby-talk:97342]

* hash.c (rb_hash_equal): returns true if two hashes have same set
  of key-value set.  [ruby-talk:97559]

* hash.c (rb_hash_eql): returns true if two hashes are equal and
  have same default values.

* string.c (rb_str_equal): always returns true or false, never
  returns nil. [ruby-dev:23404]

* io.c (rb_io_reopen): should use rb_io_check_io().


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  lib/ftools.rb, lib/getoptlong.rb, lib/logger.rb, lib/matrix.rb,
  lib/monitor.rb, lib/set.rb, lib/thwait.rb, lib/timeout.rb,
  lib/yaml.rb, lib/drb/drb.rb, lib/irb/workspace.rb, lib/net/ftp.rb,
  lib/net/http.rb, lib/net/imap.rb, lib/net/telnet.rb,
  lib/racc/parser.rb, lib/rinda/rinda.rb, lib/rinda/tuplespace.rb,
  lib/shell/command-processor.rb, lib/soap/rpc/soaplet.rb,
  lib/test/unit/testcase.rb, lib/test/unit/testsuite.rb: typo fix.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6179 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@5732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

          "#{aCell}" and so on.

        * test/csv/test_csv.rb: add tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5177 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  respond_to?(:binmode).  record separator was wrong when you gave text mode IO
  to Reader.parse and Writer.generate.

* test/csv/test_csv.rb: add tests for above change.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  To parse Mac's CR separated CSV, do like this.
    CSV.open("mac.csv", "r", ?,,?\r) { |row| p row.to_a }
  The 3rd parameter in this example ?, is for column separater and the 4th ?\r
  is for row separater.  Row separater is nil by default.  Nil separater means
  "\r\n" or "\n".

* test/csv/test_csv.rb: add tests for above feature.

* test/csv/mac.csv: added.  Sample CR separated CSV file.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4553 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e