Concept:
Acceptor
Headline
A program that accepts input according to some formal definition
Details
For instance, we may implement a context-free grammar for parsing, e.g., as a recursive descent parser without adding any semantic actions, though, and thereby obtain an acceptor for the language generated by the grammar. The acceptor behaves essentially as a predicate on given input: accept (true) or reject (false).
Illustration
See Technology:Parsec for (the illustration of) a combinator library for parsing (or "accepting").
See Contribution:haskellAcceptor for a contribution with a Language:Haskell-based acceptor.
Relationship
- An acceptor is "degenerated" parser. (No parse trees are synthesized.)
Ralf Lämmel
edited this article at
Sat, 20 Jun 2020 13:13:48 +0200
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