Create a syntax analyzer that recognizes assignment statements or simple operations, and validates its structure with a grammar like the following $($example$)$:

$->|$

$->=$ ;

$->[$a$-$zA$-$Z$][$a$-$zA$-$Z$0-9\_]*$

$->|+|-$

$->|*|/$

$->||()$

$->[0-9]+$

They can use syntax trees, derivation tables and$/$or automata. They can be supported with tools and libraries such as yacc, or bison