Formal Language Theory: The study of abstract languages, their systematic classifications and the computational devices—such as automata and grammars—that recognise them.

Description: Application of concepts developed in formal language and automata theory to the design of programming languages and their processors. Models of syntactic analysis, including canonical ...

Formal language theory, which underpins these automata, provides a framework for defining, classifying, and rigorously analysing the structure of languages.