What does ANTLR stand for?
Tool for Language Recognition
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
What is antlr3?
What is ANTLR 3? ANTLR – ANother Tool for Language Recognition – is a tool that is used in the construction of formal language software tools (or just language tools) such as translators, compilers, recognizers and, static/dynamic program analyzers.
Why ANTLR is used?
ANTLR is a powerful parser generator that you can use to read, process, execute, or translate structured text or binary files. It’s widely used in academia and industry to build all sorts of languages, tools, and frameworks. Twitter search uses ANTLR for query parsing, with over 2 billion queries a day.
Is ANTLR top-down or bottom-up?
Both types of parser generators exist (for example yacc and bison are bottom-up and ANTLR and JavaCC are top-down).
Who is using ANTLR?
Why use ANTLR instead of Yacc?
In fact, there is a version of yacc, goyacc, which is written in Go and was part of the main go repo until it was moved to golang.org/x/tools last year. So why use ANTLR over these? ANTLR has a suite of tools, and GUIs, that makes writing and debugging grammars easy.
What makes ANTLR different from other parser generators?
It uses a simple EBNF syntax to define the grammar, instead of a bespoke configuration language. ANTLR is an Adaptive LL (*) parser, ALL (*) for short, whereas most other parser generators (e.g Bison and Yacc) are LALR.
What is ANTLR?
What is ANTLR? ANTLR (ANother Tool for Language Recognition), is an ALL (*) parser generator. In layman’s terms, Antlr, creates parsers in a number of languages (Go, Java, C, C#, Javascript), that can process text or binary input.
What is the difference between LALR and LL (*) parsers?
The generated code for a LL (*) parser is more understandable than a LALR parser. This is because LALR parsers are commonly table driven, whereas LL (*) parsers encode the logic in its control flow, making it more comprehensible. Finally ANTLR is agnostic to the target language. A single grammar can be used to generate parsers in Java, Go, C, etc.