• In computer science, extended BackusNaur form (EBNF) is a family of metasyntax notations, any of which can be used to express a context-free grammar...
    15 KB (1,653 words) - 20:45, 20 May 2025
  • In computer science, BackusNaur form (BNF, pronounced /ˌbækəs ˈnaʊər/), also known as Backus normal form, is a notation system for defining the syntax...
    26 KB (2,908 words) - 00:52, 25 July 2025
  • is declared before use which is impossible to describe in the extended BackusNaur form and thus not easily detected during parsing. Attribute grammar...
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  • arrays. In syntax diagrams they are used for grouping, such as in extended BackusNaur form. In Mathematica and the Wolfram language, parentheses are used...
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  • Translational BackusNaur Form (TBNF or Translational BNF) refers to BackusNaur form, which is a formal grammar notation used to define the syntax of...
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  • Expression templates allow users to approximate the syntax of extended BackusNaur form (EBNF) completely in C++. Parser objects are composed through...
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  • an input to a parser generator. It often resembles BackusNaur form (BNF), extended BackusNaur form (EBNF), or has its own syntax. Grammar files describe...
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  • (DFA)-based lexers with full Unicode support and lexical states. Extended BackusNaur form grammar syntax. (Supports the *, ? and + operators). LALR(1) based...
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  • computer languages are BackusNaur form (BNF), extended BackusNaur form (EBNF), Wirth syntax notation (WSN), and augmented BackusNaur form (ABNF). Metalanguages...
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  • Thumbnail for Regular expression
    by zero or more 0s). Comparison of regular expression engines Extended BackusNaur form Matching wildcards Regular tree grammar Thompson's construction...
    97 KB (8,871 words) - 07:36, 4 August 2025
  • be extended to handle non-atom-based graphs, also known as "reduced feature" graphs. The query language is based on an extended BackusNaur form (EBNF)...
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  • Thumbnail for Abstract syntax tree
    acyclic graph (DAG) Document Object Model (DOM) Expression tree Extended BackusNaur form Lisp, a family of languages written in trees, with macros to manipulate...
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  • Thumbnail for Formal grammar
    Adaptive grammar Ambiguous grammar BackusNaur form (BNF) Categorial grammar Concrete syntax tree Extended BackusNaur form (EBNF) Grammar Grammar framework...
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  • Thumbnail for Data modeling
    diagrams Barker's notation Chen's notation Data Vault Modeling Extended BackusNaur form IDEF1X Object-relational mapping Object-Role Modeling and Fully...
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  • grammar. They represent a graphical alternative to BackusNaur form, EBNF, Augmented BackusNaur form, and other text-based grammars as metalanguages. Early...
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  • for nitrogen or CCO for ethanol BNF (Backus normal form, or BackusNaur form) and EBNF (extended Backus-Naur form) are the two main notation techniques...
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  • Thumbnail for Syntax (programming languages)
    grammar, defined using the notation of regular expressions and Extended BackusNaur form. It describes the syntax of S-expressions, a data syntax of the...
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  • SableCC In the manual, however, it is referred as L-attributed Extended BackusNaur Form syntax (EBNF). Mössenböck, Hanspeter; Kepler, Johannes. "The Compiler...
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  • Originally proposed by Niklaus Wirth in 1977 as an alternative to BackusNaur form (BNF). It has several advantages over BNF in that it contains an explicit...
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  • original 1964 Dartmouth BASIC written as a formal standard using an Extended BackusNaur form with an associated test suite to ensure implementation complied...
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  • Thumbnail for Niklaus Wirth
    on New Year's Day 2024, at age 89. 21655 Niklauswirth asteroid Extended BackusNaur form Wirth syntax notation Bucky bit Wirth–Weber precedence relationship...
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  • extended BackusNaur form). Dick Grune created a C program that would generate all possible productions of a W-grammar. The applications of Extended Affix...
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  • Thumbnail for ALGOL
    formal language definition and through the Algol 60 Report introduced BackusNaur form, a principal formal grammar notation for language design. There were...
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  • regular expression, but written out into multiple parts like in Extended BackusNaur form. For example, instead of supporting POSIX character classes in...
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  • Thumbnail for History of compiler construction
    (August 1995). "Extended Backus Naur Form". Compiler Basics. Retrieved 11 May 2011. Donald E. Knuth, "Backus Normal Form vs. Backus Naur Form", Communications...
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  • Thumbnail for Object Process Methodology
    annexes totaling 86 pages.[citation needed] One annex was an EBNF (Extended Backus-Naur Form, used to formally specify context free languages, enabling parsing...
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  • specified as a (possibly ambiguous) context-free grammar using an extended BackusNaur Form; and a set of tree transformation rules, specified using pattern...
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  • bar unusable as the regular expression "alternative" operator. In BackusNaur form, an expression consists of sequences of symbols and/or sequences separated...
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  • Thumbnail for Oberon-2
    Wirth, March 1995) using only 33 grammatical productions in the extended BackusNaur form, as shown below. Module = MODULE ident ";" [ImportList] DeclSeq...
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  • meta-metamodels include entity–relationship diagrams, formal languages, extended BackusNaur form (EBNF), ontology languages, XML schema, and Meta-Object Facility...
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