EntityQ6590011· pop 8· linked from 71 articlesIndexed grammarSign in to savegeneralization of context-free grammars in that nonterminals are equipped with lists of flags, or index symbolsConnectionsformal grammarEntityJeffrey David UllmanEntityregular languageEntitynested stack automatonEntityproductionEntitymildly context-sensitive languageEntityalphabetEntityInternational Standard Book NumberEntitydigital object identifierEntityTuring machineEntitysubsetEntityQ118398Entityformal languageEntitypower setEntityfinite-state machineEntityautomata theoryEntityChomsky hierarchyEntityQ22908627EntityAlfred AhoEntityclosureEntityCategoriesFormal languagesGrammar frameworks