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2. Tree-sitter (parser generator) - Wikipedia

   en.wikipedia.org/wiki/Tree-sitter_(parser_generator)

   Tree-sitter parsers have been written for these languages and many others. [11] GitHub uses Tree-sitter to support in-browser symbolic code navigation in Git repositories. [12] Tree-sitter uses a GLR parser, a type of LR parser. [13] [14] [12] Tree-sitter was originally developed by GitHub for use in the Atom text editor, where it was first ...

3. Regular tree grammar - Wikipedia

   en.wikipedia.org/wiki/Regular_tree_grammar

   The image shows the corresponding derivation tree; it is a tree of trees (main picture), whereas a derivation tree in word grammars is a tree of strings (upper left table). The tree language generated by G 1 is the set of all finite lists of boolean values, that is, L ( G 1 ) happens to equal T Σ1 .

4. Parse tree - Wikipedia

   en.wikipedia.org/wiki/Parse_tree

   A parse tree or parsing tree [1] (also known as a derivation tree or concrete syntax tree) is an ordered, rooted tree that represents the syntactic structure of a string according to some context-free grammar. The term parse tree itself is used primarily in computational linguistics; in theoretical syntax, the term syntax tree is more common.

5. Comparison of parser generators - Wikipedia

   en.wikipedia.org/.../Comparison_of_parser_generators

   However, parser generators for context-free grammars often support the ability for user-written code to introduce limited amounts of context-sensitivity. (For example, upon encountering a variable declaration, user-written code could save the name and type of the variable into an external data structure, so that these could be checked against ...

6. Tree-adjoining grammar - Wikipedia

   en.wikipedia.org/wiki/Tree-adjoining_grammar

   Tree-adjoining grammar (TAG) is a grammar formalism defined by Aravind Joshi. Tree-adjoining grammars are somewhat similar to context-free grammars , but the elementary unit of rewriting is the tree rather than the symbol.

7. ANTLR - Wikipedia

   en.wikipedia.org/wiki/ANTLR

   A language is specified using a context-free grammar expressed using Extended Backus–Naur Form (EBNF). [citation needed] [6] ANTLR can generate lexers, parsers, tree parsers, and combined lexer-parsers. Parsers can automatically generate parse trees or abstract syntax trees, which can be further processed with tree parsers. ANTLR provides a ...