High-speed parsing of a superset of LR(k) grammars

Coupled-Context-Free Grammars are a generalization of context-free grammars obtained by combining nonterminals to parentheses which can only be substituted simultaneously. Referring to the generative capacity of the grammars we obtain an infinite ...

An extended LR(k) (ELR(k)) grammar is a context free grammar in which the right sides of the productions are regular expressions and which can be parsed from left to right with k symbol look-ahead. We present a practical algorithm for producing small ...

For decades we have been using Chomsky's generative system of grammars, particularly context-free grammars (CFGs) and regular expressions (REs), to express the syntax of programming languages and protocols. The power of generative grammars to express ...