Added accessor of original line when parsing.

[Feature #11865][ruby-core:72452][fix GH-1170]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58743 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/csv.rb

@@ -1656,7 +1656,7 @@ class CSV
   # The line number of the last row read from this file.  Fields with nested
   # line-end characters will not affect this count.
   #
-  attr_reader :lineno
+  attr_reader :lineno, :line
 
   ### IO and StringIO Delegation ###
 
@@ -1831,6 +1831,12 @@ class CSV
         return nil
       end
 
+      if in_extended_col
+        @line.concat(parse)
+      else
+        @line = parse.clone
+      end
+
       parse.sub!(@parsers[:line_end], "")
 
       if csv.empty?

test/csv/test_features.rb

@@ -104,6 +104,20 @@ class TestCSV::Features < TestCSV
     assert_equal($/, CSV.new(STDERR).row_sep)
   end
 
+  def test_line
+    lines = [
+      %Q(abc,def\n),
+      %Q(abc,"d\nef"\n),
+      %Q(abc,"d\r\nef"\n),
+      %Q(abc,"d\ref")
+    ]
+    csv = CSV.new(lines.join(''))
+    lines.each do |line|
+      csv.shift
+      assert_equal(line, csv.line)
+    end
+  end
+
   def test_lineno
     assert_equal(5, @sample_data.lines.to_a.size)