Prefix starting with '%'

csv-safe.gemspec

@@ -4,7 +4,7 @@ require 'csv-safe'
 
 Gem::Specification.new do |spec|
   spec.name          = 'csv-safe'
-  spec.version       = '2.1.0'
+  spec.version       = '3.0.0'
   spec.authors       = ['Alex Zvorygin']
   spec.email         = ['grafetu@gmail.com']
 

lib/csv-safe.rb

@@ -21,7 +21,7 @@ def <<(row)
   # TODO: performance test if i'm adding
   # too many method calls to hot code
   def starts_with_special_character?(str)
-    %w[- = + @].include?(str[0])
+    %w[- = + @ % |].include?(str[0])
   end
 
   def prefix(field)

spec/csv_safe_spec.rb

@@ -59,6 +59,18 @@
       it { should eq expected }
     end
 
+    context 'with a field that starts with a %' do
+      let(:field) { "%0A-2+3+cmd|' /C calc'!'E2'" }
+      let(:expected) { "'%0A-2+3+cmd|' /C calc'!'E2'" }
+      it { should eq expected }
+    end
+
+    context 'with a field that starts with a %' do
+      let(:field) { "|-2+3+cmd|' /C calc'!'E2'" }
+      let(:expected) { "'|-2+3+cmd|' /C calc'!'E2'" }
+      it { should eq expected }
+    end
+
     context 'with a field that is a date' do
       let(:field) { Time.now }
       it { should eq field }
@@ -224,6 +236,17 @@ def arr_to_line(arr)
           end
           it { should eq arr_to_line(expected) }
         end
+
+        context 'because it starts with a %' do
+          let(:row) do
+            ["%0A-2+3+cmd|' /C calc'!'E2'"]
+          end
+
+          let(:expected) do
+            ["'%0A-2+3+cmd|' /C calc'!'E2'"]
+          end
+          it { should eq arr_to_line(expected) }
+        end
       end
     end
   end