Given expression is a combination of multiple expressions with mid-points in them, such that each sub-expression is independent of other sub-expressions, then it is context free.
DFA for accepting the language L = is context free, as we can push two a’s and pop an a for each occurrence of b.DFA machines accepting odd number of 0’s or/and even number of 1’s.
#Context free grammar checker for free#
It sets high limits on the number of characters it will check for free in. Scribens seems like it would be a good Google Docs grammar checker and Google Slides grammar checker. Scribens Grammar Checker For Google Docs.
Arden’s Theorem in Theory of Computation For those looking for a low cost Google Doc grammar checker and Google Slides grammar checker, that paywall may be too high.Regular Expressions, Regular Grammar and Regular Languages.Chomsky Hierarchy in Theory of Computation.Theory Of Computation and Automata Tutorials.Regular expression, languages, grammar and finite automata ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.