Method decode

canvas/src/decoding.rs:106–143

Decodes a single character and returns the new state of the decoder

(mut self, chr: char)

    /// Decodes a single character and returns the new state of the decoder
    ///
    fn decode(mut self, chr: char) -> Result<DecodeString, DecoderError> {
        // Decode or fetch the length of the string
        let length = match self.length {
            PartialResult::MatchMore(so_far)    => {
                self.length = CanvasDecoder::decode_compact_id(chr, so_far)?;

                if let &PartialResult::FullMatch(0) = &self.length {
                    self.string_encoding = PartialResult::FullMatch(String::new());
                }
                return Ok(self);
            }

            PartialResult::FullMatch(length)    => {
                self.length = PartialResult::FullMatch(length);
                length as usize
            }
        };

        // Try to decode the rest of the string
        match self.string_encoding {
            PartialResult::FullMatch(string)    => {
                // Nothing to do
                self.string_encoding = PartialResult::FullMatch(string);
            }

            PartialResult::MatchMore(mut string)    => {
                string.push(chr);

                if string.len() >= length {
                    self.string_encoding = PartialResult::FullMatch(string);
                } else {
                    self.string_encoding = PartialResult::MatchMore(string);
                }
            }
        }

        Ok(self)
    }
}

impl DecodeBytes {