- Regular expression is very important to understand the language. When a grammar passed by any machine means accepted by any one of the four machines like Turing, PDA it means this expression is valid.
- We all know how TOC works Theory of Computation and this is where TOC exactly used.
- We were able to describe identifiers by giving names to sets of letters and digits and using the language operators union, concatenation, and closure
- This process is so useful that a notation called regular expression.
- Here i m giving you some important points to remember :
b.2:- An LR parser will detect an error when it consults the parsing action table and finds an error entry.