internal static bool IsInputEncoded5987()

in src/Microsoft.Azure.Relay/WebSockets/NetStandard20/AuthenticationHelper.Digest.cs [183:218]

• 29 lines of code
• 7 McCabe index (conditional complexity)

        internal static bool IsInputEncoded5987(string input, out string output)
        {
            // Encode a string using RFC 5987 encoding.
            // encoding'lang'PercentEncodedSpecials
            bool wasEncoded = false;
            StringBuilder builder = StringBuilderCache.Acquire();
            builder.Append("utf-8\'\'");
            foreach (char c in input)
            {
                // attr-char = ALPHA / DIGIT / "!" / "#" / "$" / "&" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
                //      ; token except ( "*" / "'" / "%" )
                if (c > 0x7F) // Encodes as multiple utf-8 bytes
                {
                    byte[] bytes = Encoding.UTF8.GetBytes(c.ToString());
                    foreach (byte b in bytes)
                    {
                        AddHexEscaped((char)b, builder);
                        wasEncoded = true;
                    }
                }
                else if (!IsTokenChar(c) || c == '*' || c == '\'' || c == '%')
                {
                    // ASCII - Only one encoded byte.
                    AddHexEscaped(c, builder);
                    wasEncoded = true;
                }
                else
                {
                    builder.Append(c);
                }

            }

            output = StringBuilderCache.GetStringAndRelease(builder);
            return wasEncoded;
        }