Adding support for :write_headers => false to Table.to_csv().

CHANGELOG

@@ -5,6 +5,7 @@ Below is a complete listing of changes for each revision of FasterCSV.
 == 1.5.2
 
 * A bug fix to allow IO Exceptions to reach the calling code from Moses Hohman.
+* Added support for <tt>:write_headers => false</tt> to Table.to_csv().
 
 == 1.5.1
 

lib/faster_csv.rb

@@ -704,8 +704,12 @@ def to_a
     # Returns the table as a complete CSV String.  Headers will be listed first,
     # then all of the field rows.
     # 
+    # This method assumes you want the Table.headers(), unless you explicitly
+    # pass <tt>:write_headers => false</tt>.
+    # 
     def to_csv(options = Hash.new)
-      @table.inject([headers.to_csv(options)]) do |rows, row|
+      wh = options.fetch(:write_headers, true)
+      @table.inject(wh ? [headers.to_csv(options)] : [ ]) do |rows, row|
         if row.header_row?
           rows
         else

test/tc_table.rb

@@ -251,6 +251,8 @@ def test_to_csv
     # with options
     assert_equal( csv.gsub(",", "|").gsub("\n", "\r\n"),
                   @table.to_csv(:col_sep => "|", :row_sep => "\r\n") )
+    assert_equal( csv.to_a[1..-1].join,
+                  @table.to_csv(:write_headers => false) )
 
     # with headers
     assert_equal(csv, @header_table.to_csv)