Fix :parse method with :clean option

 - Fixes Roo::Excelx.parse method when using :clean option
 - Fixes Roo::CSV.parse method when using :clean option
 - Added tests for parse with :clean option

fixed space

lib/roo/csv.rb

@@ -107,4 +107,14 @@ def read_cells(sheet = default_sheet)
       @last_column[sheet] -= 1
     end
   end
+
+  def clean_sheet(sheet)
+    read_cells(sheet)
+
+    @cell.each_pair do |coord, value|
+      @cell[coord] = sanitize_value(value) if value.is_a?(::String)
+    end
+
+    @cleaned[sheet] = true
+  end
 end

lib/roo/excelx.rb

@@ -487,6 +487,14 @@ def each_row_streaming(options={})
 
   private
 
+  def clean_sheet(sheet)
+    @sheets_by_name[sheet].cells.each_pair do |coord, value|
+      @sheets_by_name[sheet].cells[coord] = sanitize_value(value) if value.is_a?(::String)
+    end
+
+    @cleaned[sheet] = true
+  end
+
   # Extracts all needed files from the zip file
   def process_zipfile(tmpdir, zipfilename)
     @sheet_files = []

spec/lib/roo/csv_spec.rb

@@ -23,6 +23,20 @@
     end
   end
 
+  describe '#parse_with_clean_option' do
+    subject do
+      csv.parse(options)
+    end
+    context 'with clean: true' do
+      let(:options) { {clean: true} }
+      let(:path) { 'test/files/parse_with_clean_option.csv' }
+
+      it "doesn't blow up" do
+        expect { subject }.to_not raise_error
+      end
+    end
+  end
+
   describe '#csv_options' do
     context 'when created with the csv_options option' do
       let(:options) do

spec/lib/roo/excelx_spec.rb

@@ -71,6 +71,20 @@
     end
   end
 
+  describe '#parse_with_clean_option' do
+    let(:path) { 'test/files/parse_with_clean_option.xlsx' }
+    let(:options) { {clean: true} }
+
+    context 'with clean: true' do
+
+      it 'does not raise' do
+        expect do
+          xlsx.parse(options)
+        end.not_to raise_error
+      end
+    end
+  end
+
   describe '#sheets' do
     let(:path) { 'test/files/numbers1.xlsx' }
 

test/files/parse_with_clean_option.csv

@@ -0,0 +1 @@
+nameRobert Eshleman