ANTLR

Time 2021-06-06 16:10:27

Web Name: ANTLR

WebSite: http://www.antlr.org

ID:181517

Keywords:

ANTLR,

Description:

ANTLR (ANother Tool for Language Recognition) is apowerful parser generator for reading, processing, executing, ortranslating structured text or binary files. It's widely used to buildlanguages, tools, and frameworks. From a grammar, ANTLR generates aparser that can build and walk parse trees.Check out Terence's latest adventure explained.aiTerence Parr is the maniac behind ANTLR and has beenworking on language tools since 1989. He is a professor of computerscience at the University of San Francisco.$ cd /usr/local/lib$ sudo curl -O https://www.antlr.org/download/antlr-4.9.2-complete.jar$ export CLASSPATH=".:/usr/local/lib/antlr-4.9.2-complete.jar:$CLASSPATH"$ alias antlr4='java -jar /usr/local/lib/antlr-4.9.2-complete.jar'$ alias grun='java org.antlr.v4.gui.TestRig'$ wget https://www.antlr.org/download/antlr-4.9.2-complete.jar$ export CLASSPATH=".:/usr/local/lib/antlr-4.9.2-complete.jar:$CLASSPATH"$ alias antlr4='java -jar /usr/local/lib/antlr-4.9.2-complete.jar'$ alias grun='java org.antlr.v4.gui.TestRig'Download https://www.antlr.org/download/antlr-4.9.2-complete.jar.Add antlr4-complete.jar to CLASSPATH, either:Permanently: Using System Properties dialog > Environment variables > Create or append to CLASSPATH variableTemporarily, at command line:SET CLASSPATH=.;C:\Javalib\antlr4-complete.jar;%CLASSPATH%Kudos. I'm actually really liking ANTLR! I have a pretty darn goodvelocity with a rapid prototyping project I am doing in my Google 20%time. For example, I just discovered a feature in rewrite rules thatdoes exactly what I need (referencing previous rule ASTs, p. 174 inyour book). It took me about 5 minutes to get this to work and removean ugly wart from my grammar. Hats off!Guido van Rossum, Inventor of PythonANTLR is an exceptionally powerful and flexible tool for parsingformal languages. At Twitter, we use it exclusively for query parsingin Twitter search. Our grammars are clean and concise, and thegenerated code is efficient and stable. The book is our go-toreference for ANTLR v4 -- engaging writing, clear descriptions andpractical examples all in one place.Samuel Luckenbill, Senior Manager of Search Infrastructure, Twitter, inc.Just wanted to take the opportunity to say thanks. ANTLR is a BIGimprovement over yacc/lex, and your support for it mostcommendable. Managed to get my tired old brain around it in aday. Nice work!Brad Cox, Inventor of Objective-C

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