Convert string input to set of Items config.

Create a new lexer with config mode.

Create a new lexer with data mode.

Constructor, returns parser struct with processed commands patterns that are used while parsing incoming data.

Keeps request and response tokens.

Main structure that keeps token type and its value.

Define the lexer struct.

Main parser structure, based on vdfile generates map of commands, and then parses incoming messages.

Stage function callback.