WIP: fixing android escaping

lib/babelish/csv2android.rb

@@ -20,6 +20,8 @@ def language_filepaths(language)
 
     def process_value(row_value, default_value)
       value = super(row_value, default_value)
+      value = escape_android_characters(value)
+
       # if the value begins and ends with a quote we must leave them unescapted
       if value.size > 4 && value[0, 2] == "\\\"" && value[value.size - 2, value.size] == "\\\""
         value[0, 2] = "\""
@@ -28,6 +30,16 @@ def process_value(row_value, default_value)
       value.to_utf8
     end
 
+    # see https://developer.android.com/guide/topics/resources/string-resource#escaping_quotes
+    def escape_android_characters(value)
+      value.gsub!(/'/, "'" => '\\\'')       # \' should be the result...
+      value.gsub!(/&/, "&" => '&')
+      value.gsub!(/</, "<" => '&lt;')
+      value.gsub!(/\?/, "?" => '\?')
+      value.gsub!(/@/, "@" => '\@')
+      value
+    end
+
     def get_row_format(row_key, row_value, comment = nil, indentation = 0)
       entry = comment.to_s.empty? ? "" : "\n\t<!-- #{comment} -->\n"
       entry + "\t<string name=\"#{row_key}\">#{row_value}</string>\n"

test/babelish/test_csv2android.rb

@@ -69,4 +69,16 @@ def test_converting_with_basename
     # clean up
     system("rm -rf ./values-en")
   end
+
+  def test_android_character_escaping
+    converter = Babelish::CSV2Android.new('test/data/test_data.csv',
+                                          { "English" => "en" },
+                                          { output_basename: "super_strings" })
+    input_string = "?  '  @  <  &"
+
+    converted_string = converter.escape_android_characters(input_string)
+
+    assert_equal '\?  \\\'  \@  &lt;  &amp;', converted_string
+
+  end
 end