Is Good To Know Regular Expressions To Build a Language?

bison, flex-lexer, lex, regex

Solution

Regular expressions can be defined using formal language theory, so they're complementary concepts.

It would be a good idea to have a good understanding of both regular expressions and formal language theory before starting to build a language.

So to answer your Boolean question: Yes.

Problem

I'm reading Flex & Bison from O'Reilly, and would like to know if learning Regular Expressions beforehand will help in developing a programming language?

Original source