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2. Syntax (programming languages) - Wikipedia

   en.wikipedia.org/wiki/Syntax_(programming_languages)

   The phrase grammar of most programming languages can be specified using a Type-2 grammar, i.e., they are context-free grammars, though the overall syntax is context-sensitive (due to variable declarations and nested scopes), hence Type-1. However, there are exceptions, and for some languages the phrase grammar is Type-0 (Turing-complete).

3. Extended Backus–Naur form - Wikipedia

   en.wikipedia.org/wiki/Extended_Backus–Naur_form

   Extended Backus–Naur form. In computer science, extended Backus–Naur form ( EBNF) is a family of metasyntax notations, any of which can be used to express a context-free grammar. EBNF is used to make a formal description of a formal language such as a computer programming language. They are extensions of the basic Backus–Naur form (BNF ...

4. Syntax diagram - Wikipedia

   en.wikipedia.org/wiki/Syntax_diagram

   The representation of a grammar is a set of syntax diagrams. Each diagram defines a "nonterminal" stage in a process. There is a main diagram which defines the language in the following way: to belong to the language, a word must describe a path in the main diagram. Each diagram has an entry point and an end point.

5. F Sharp (programming language) - Wikipedia

   en.wikipedia.org/wiki/F_Sharp_(programming_language)

   The combination of type providers, queries and strongly typed functional programming is known as information rich programming. Agent programming. F# supports a variation of the actor programming model through the in-memory implementation of lightweight asynchronous agents. For example, the following code defines an agent and posts 2 messages:

6. CYK algorithm - Wikipedia

   en.wikipedia.org/wiki/CYK_algorithm

   CYK algorithm. In computer science, the Cocke–Younger–Kasami algorithm (alternatively called CYK, or CKY) is a parsing algorithm for context-free grammars published by Itiroo Sakai in 1961. [1] [2] The algorithm is named after some of its rediscoverers: John Cocke, Daniel Younger, Tadao Kasami, and Jacob T. Schwartz.

7. Grammar–translation method - Wikipedia

   en.wikipedia.org/wiki/Grammar–translation_method

   Grammar–translation method. The grammar–translation method is a method of teaching foreign languages derived from the classical (sometimes called traditional) method of teaching Ancient Greek and Latin. In grammar–translation classes, students learn grammatical rules and then apply those rules by translating sentences between the target ...

8. Abstract syntax tree - Wikipedia

   en.wikipedia.org/wiki/Abstract_syntax_tree

   Abstract syntax tree. An abstract syntax tree ( AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code) written in a formal language. Each node of the tree denotes a construct occurring in the text.

9. Computer program - Wikipedia

   en.wikipedia.org/wiki/Computer_program

   The syntax of a computer program is a list of production rules which form its grammar. A programming language's grammar correctly places its declarations, expressions, and statements. Complementing the syntax of a language are its semantics. The semantics describe the meanings attached to various syntactic constructs.