nonterminal
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nonterminal — non·terminal … English syllables
nonterminal — non•ter′mi•nal adj. ly, adv … From formal English to slang
nonterminal — “+ adjective : not terminal * * * adj.; nonterminally, adv … Useful english dictionary
Terminal and nonterminal symbols — In computer science, terminal and nonterminal symbols are the lexical elements used in specifying the production rules that constitute a formal grammar. The terminals and nonterminals of a particular grammar are two disjoint sets. Contents 1… … Wikipedia
Context-free grammar — In formal language theory, a context free grammar (CFG) is a formal grammar in which every production rule is of the form V → w where V is a single nonterminal symbol, and w is a string of terminals and/or nonterminals (w can be empty). The… … Wikipedia
Top-down parsing language — (TDPL) is a type of analytic formal grammar developed by Alexander Birman in the early 1970s in order to study formally the behavior of a common class of practical top down parsers that support a limited form of backtracking. Birman originally… … Wikipedia
Parsing expression grammar — A parsing expression grammar, or PEG, is a type of analytic formal grammar that describes a formal language in terms of a set of rules for recognizing strings in the language. A parsing expression grammar essentially represents a recursive… … Wikipedia
Indexed grammar — An indexed grammar is a formal grammar which describes indexed languages. They have three disjoint sets of symbols: the usual terminals and nonterminals and the indices, which appear only in intermediate derivation steps.Productions can replace a … Wikipedia
Formal grammar — In formal semantics, computer science and linguistics, a formal grammar (also called formation rules) is a precise description of a formal language ndash; that is, of a set of strings over some alphabet. In other words, a grammar describes which… … Wikipedia
LL parser — An LL parser is a top down parser for a subset of the context free grammars. It parses the input from Left to right, and constructs a Leftmost derivation of the sentence (hence LL, compared with LR parser). The class of grammars which are… … Wikipedia
