JsonWriter.PutString C# (CSharp) Method

        private void PutString (string str)
        {
            Put (String.Empty);

            writer.Write ('"');

            int n = str.Length;
            for (int i = 0; i < n; i++) {
                switch (str[i]) {
                case '\n':
                    writer.Write ("\\n");
                    continue;

                case '\r':
                    writer.Write ("\\r");
                    continue;

                case '\t':
                    writer.Write ("\\t");
                    continue;

                case '"':
                case '\\':
                    writer.Write ('\\');
                    writer.Write (str[i]);
                    continue;

                case '\f':
                    writer.Write ("\\f");
                    continue;

                case '\b':
                    writer.Write ("\\b");
                    continue;
                }

                if ((int) str[i] >= 32 && (int) str[i] <= 126) {
                    writer.Write (str[i]);
                    continue;
                }

                // Default, turn into a \uXXXX sequence
                IntToHex ((int) str[i], hex_seq);
                writer.Write ("\\u");
                writer.Write (hex_seq);
            }

            writer.Write ('"');
        }