Token Specification


Regex specify valid token → token types, attribute
merge different [Finite Automata](https://texonom.com/finite-automata-f150a5e238844ffeb1189b45392c2c0a) which should be [DFA](https://texonom.com/dfa-f08438340ef447f89eade6aac52f2cbb) 
### Token Specification Notion
|Title|
|:-:|
|[Token Delimiter](https://texonom.com/token-delimiter-78101044aad24d068ab3ac98bcbcc155)|
|[Token Ambiguity](https://texonom.com/token-ambiguity-e1696ddac43246b586006a9cdcff12b2)|



> [Tokens and Delimiters](http://ibcomp.fis.edu/Reading/JavaTutor/Notes/chap49D/ch49D_13.html)





