General ⇒ LaTeX Formal Grammar

[bmiguel11]

Good morning,

Does anyone know where can I find a list of all the regular expressions recognized by the LaTeX's lexer and the language's formal grammar?

Thank you very much.

[josephwright]

There isn't one. TeX's use of category codes means that the input does not necessarily conform to a rigid scheme. While the LaTeX kernel uses a broadly more restricted range of syntax, plain TeX macros and primitives are perfectly-valid LaTeX input and so the same situation applies.