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Lemon is a parser generator, maintained as part of the SQLite project, that generates a look-ahead LR parser (LALR parser) in the programming language C from an input context-free grammar. The generator is quite simple, implemented in one C source file with another file used as a template for output. Lexical analysis is performed externally.
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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 ...
It is the lexer generator adopted by projects such as PHP, [4] SpamAssassin, [5] Ninja build system [6] and others. Together with the Lemon parser generator, re2c is used in BRL-CAD . [ 7 ] This combination is also used with STEPcode, an implementation of ISO 10303 standard.
Finally, I think that either (A) there should an extra column for special features of the parser generator, e.g. ANTLR's gated predicates or tree parsing, which go "above and beyond" the capabilities of grammar types like LL(k) in the theoretical literature, or (B) the "grammar type" column could mention the special features (e.g. LL ...
Dwayne Richard Hipp (born April 9, 1961) is an American software developer and the primary author of SQLite as well as the Fossil SCM. [1] [2] He also authored the Lemon parser generator, and CVSTrac; the latter became the inspiration for Trac.
LEMON (C++ library) Lemon Parser Generator; Lemon (developer), an American video game development company; OntoLex-Lemon (and its predecessor Lemon) a community standard for lexicalizing ontologies and for publishing lexical data on the web
In computer science, a compiler-compiler or compiler generator is a programming tool that creates a parser, interpreter, or compiler from some form of formal description of a programming language and machine. The most common type of compiler-compiler is called a parser generator. [1] It handles only syntactic analysis.