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In 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 from textbook to textbook, they all require that
all production rules have at most one non-terminal symbol;
that symbol is either always at the end or always at the start of the rule's right-hand side.
Every regular grammar describes a regular language.
computer science and formal language theory, a regulargrammar is a grammar that is right-regular or left-regular. While their exact definition varies from...
language is LL-regular if it is generated by an LL-regulargrammar. LLR grammars are unambiguous and cannot be left-recursive. Every LL(k) grammar is LLR. Every...
alternatively be generated by a context-free, nonambiguous grammar; for instance, the regulargrammar with rules 1. S→aS{\displaystyle S\rightarrow aS} 2. S→bS{\displaystyle...
language theory, a regular tree grammar is a formal grammar that describes a set of directed trees, or terms. A regular word grammar can be seen as a special...
Kleene). In the Chomsky hierarchy, regular languages are the languages generated by Type-3 grammars. The collection of regular languages over an alphabet Σ...
regular languages. A regulargrammar is a grammar that is left-linear or right-linear. Observe that by inserting new nonterminals, any linear grammar...
that regular language, it is possible to induce a grammar for the language, i.e., a regular expression that generates that language. Not all regular languages...
followed by a matching B"). A classic example of a problem which a regulargrammar cannot handle is the question of whether a given string contains correctly-nested...
language is often defined by means of a formal grammar such as a regulargrammar or context-free grammar, which consists of its formation rules. In computer...
learning 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...
and context-free languages that are not regular. Type-3 grammars generate the regular languages. Such a grammar restricts its rules to a single nonterminal...
RELAX NG (Regular Language for XML Next Generation) was initially specified by OASIS and is now a standard (Part 2: Regular-grammar-based validation...
be represented over any field Regular paperfolding sequence, also known as the dragon curve sequence Regular tree grammar Castelnuovo–Mumford regularity...
are rewritten. The prefix grammars describe exactly all regular languages. A prefix grammar G is a 3-tuple, (Σ, S, P), where Σ is a finite alphabet S...
English grammar is the set of structural rules of the English language. This includes the structure of words, phrases, clauses, sentences, and whole texts...
called LL-regular (LLR) if it parses an LL-regular language.[clarification needed] The class of LLR grammars contains every LL(k) grammar for every k...
In computer science, a parsing expression grammar (PEG) is a type of analytic formal grammar, i.e. it describes a formal language in terms of a set of...
few hundred. Interlingua was developed to combine a simple, mostly regulargrammar with a vocabulary common to a wide range of western European languages...
In computer science, an ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation or...
and data relationships in structured information resources. Part 2: Regular-grammar-based validation – RELAX NG Part 3: Rule-based validation – Schematron...
a series of types of formal grammars with increasing expressive power. Among the simplest types are the regulargrammars (type 3); Chomsky argues that...
by means of regular expressions fashionable. SNOBOL4 patterns, however, subsume BNF grammars, which are equivalent to context-free grammars and more powerful...
first writing the text in High Valyrian, then applying a series of regulargrammar and sound changes to simulate the changes in natural languages over...
syntax-directed driver; one could establish the analogies Yacc:LR(1) grammar::Lex:Regulargrammar::FleXML::XML. The implementation is in Perl. A programmer supplied...
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