From d68df9e5088c7ce23f550968df1280a31f6a8d48 Mon Sep 17 00:00:00 2001
From: Adam Gardiner <adam.b.gardiner@gmail.com>
Date: Sat, 27 Apr 2013 18:01:29 +0100
Subject: Add a preserve_spaces option to worksheet, defaults to true

---
 lib/axlsx/workbook/worksheet/worksheet.rb | 9 ++++++++-
 test/workbook/worksheet/tc_worksheet.rb   | 9 +++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/axlsx/workbook/worksheet/worksheet.rb b/lib/axlsx/workbook/worksheet/worksheet.rb
index 5f650263..36031be7 100644
--- a/lib/axlsx/workbook/worksheet/worksheet.rb
+++ b/lib/axlsx/workbook/worksheet/worksheet.rb
@@ -37,6 +37,7 @@ module Axlsx
       @page_setup = PageSetup.new options[:page_setup]  if options[:page_setup]
       @print_options = PrintOptions.new options[:print_options] if options[:print_options]
       @header_footer = HeaderFooter.new options[:header_footer] if options[:header_footer]
+      @preserve_spaces = options.fetch(:preserve_spaces, true)
     end
 
     # The name of the worksheet
@@ -327,6 +328,10 @@ module Axlsx
       auto_filter.range = v
     end
 
+    # Accessor for controlling whether leading and trailing spaces in cells are
+    # preserved or ignored. The default is to preserve spaces.
+    attr_accessor :preserve_spaces
+
     # The part name of this worksheet
     # @return [String]
     def pn
@@ -699,7 +704,9 @@ module Axlsx
     # Helper method for parsingout the root node for worksheet
     # @return [String]
     def worksheet_node
-      "<worksheet xmlns=\"%s\" xmlns:r=\"%s\">" % [XML_NS, XML_NS_R]
+      (@preserve_spaces ?
+        "<worksheet xmlns=\"%s\" xmlns:r=\"%s\" xml:space=\"preserve\">" :
+        "<worksheet xmlns=\"%s\" xmlns:r=\"%s\">") % [XML_NS, XML_NS_R]
     end
 
     def sheet_data
diff --git a/test/workbook/worksheet/tc_worksheet.rb b/test/workbook/worksheet/tc_worksheet.rb
index ed8c7cab..c2bb0faa 100644
--- a/test/workbook/worksheet/tc_worksheet.rb
+++ b/test/workbook/worksheet/tc_worksheet.rb
@@ -352,6 +352,15 @@ class TestWorksheet < Test::Unit::TestCase
     assert(schema.validate(doc).map{ |e| puts e.message; e }.empty?, "error free validation")
   end
 
+  def test_to_xml_string_with_preserve_spaces
+    # Check that xml:space="preserve" has been added when preserve_spaces is set
+    ws_xml = Nokogiri::XML(@ws.to_xml_string)
+    assert(ws_xml.xpath("//xmlns:worksheet/@xml:space='preserve'"))
+    @ws.preserve_spaces = false
+    ws_xml = Nokogiri::XML(@ws.to_xml_string)
+    assert(!ws_xml.xpath("//xmlns:worksheet/@xml:space='preserve'"))
+  end
+
   def test_styles
     assert(@ws.styles.is_a?(Axlsx::Styles), 'worksheet provides access to styles')
   end
-- 
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