science and formal language theory, a regular language (also called a rational language) is a formal language that can be defined by a regular expression, in...

validation. Regular expression techniques are developed in theoretical computer science and formal language theory. The concept of regular expressions...

theory, induction of regular languages refers to the task of learning a formal description (e.g. grammar) of a regular language from a given set of example...

language theory, the ω-regular languages are a class of ω-languages that generalize the definition of regular languages to infinite words. As regular...

theory of formal languages, the pumping lemma for regular languages is a lemma that describes an essential property of all regular languages. Informally,...

theoretical computer science and formal language theory, a regular grammar is a grammar that is right-regular or left-regular. While their exact definition varies...

\Sigma ^{*}} is called a regular partition if for every R ∈ π {\displaystyle R\in \pi } the language R {\displaystyle R} is regular. Let G = ( V , Σ , R ...

began in 1936 Regular inflection, the formation of derived forms such as plurals in ways that are typical for the language Regular verb Regular script, the...

REgular LAnguage description for XML (RELAX) is a specification for describing XML-based languages. A description written in RELAX is called a RELAX grammar...

particular formal language are sometimes called well-formed words. A formal language is often defined by means of a formal grammar such as a regular grammar or...

L/R of L by a regular language R The context-free languages are not closed under intersection. This can be seen by taking the languages A = { a n b n...

nonterminal (left regular). These generate the same languages. However, if left-regular rules and right-regular rules are combined, the language need no longer...

science and formal language theory, a regular tree grammar is a formal grammar that describes a set of directed trees, or terms. A regular word grammar can...

A regular verb is any verb whose conjugation follows the typical pattern, or one of the typical patterns, of the language to which it belongs. A verb...

computer science and formal language theory, a regular language is said to be star-free if it can be described by a regular expression constructed from...

DFA; i.e., a DFA recognizing the same formal language. Like DFAs, NFAs only recognize regular languages. NFAs were introduced in 1959 by Michael O. Rabin...

the input string will be accepted. The language recognized by M is the regular language given by the regular expression (1*) (0 (1*) 0 (1*))*, where...

manipulations, much like later object-oriented languages such as JavaScript whose patterns are known as regular expressions. In addition SNOBOL4 strings generated...

The Canons Regular of St. Augustine are Catholic priests who live in community under a rule (Latin: regula and κανών, kanon, in Greek) and are generally...

simple parsing is done using regular expressions, in which a group of regular expressions defines a regular language and a regular expression engine automatically...

formal languages, the star height is a measure for the structural complexity of regular expressions and regular languages. The star height of a regular expression...

Regular Show (known as Regular Show in Space during its eighth season) is an American animated sitcom created by J. G. Quintel for Cartoon Network. It...

alphabet of a regular language is substituted by another regular language, the result is still a regular language. Similarly, context-free languages are closed...

family. One type of mixed language called pidgins occurs when adult speakers of two different languages interact on a regular basis, but in a situation...

acceptor. By definition, the languages accepted by acceptors are the regular languages. The problem of determining the language accepted by a given acceptor...

context-free languages can be recognized by an LL(k) parser. An LL parser is called LL-regular (LLR) if it parses an LL-regular language.[clarification...

whether its language is regular, nor whether it is an LL(k) language for a given k.: 254  There are algorithms to decide whether the language of a given...

decision problem of ω-regular language membership is decidable using a Büchi automaton, and fairly straightforward to compute. If the language Σ is the power...

refers to a theorem that asserts that the set of ω-regular languages is identical to the set of languages recognizable by deterministic Muller automata. This...

finite type. The languages recognized by probabilistic automata are called stochastic languages; these include the regular languages as a subset. The...