Editing JavaCC (section)

{{Infobox software
| name                   = JavaCC
| logo                   =
| screenshot             =
| caption                =
| developer              = Oracle
| latest release version = 7.0.10
| latest release date    = {{Start date and age|2020|11|23}}<ref>{{cite web|url=https://javacc.github.io/javacc/release-notes.html#javacc-7.0.10|title=MODIFICATIONS IN VERSION 7.0.10 |accessdate=2021-05-14}}</ref>
| latest preview version =
| latest preview date    =
| operating system       =
| platform               = [[Java Virtual Machine]]
| genre                  = parser/scanner generator
| license                = [[BSD license|BSD]]
| website                = {{URL|javacc.org}}
| repo                   = {{URL|https://github.com/javacc/javacc}}}}

'''JavaCC''' ('''Java Compiler Compiler''') is an [[open-source software|open-source]] [[parser generator]] and [[Lexical analysis|lexical analyzer]] generator written in the [[Java (programming language)|Java programming language]].<ref>{{cite web
| url=https://www.javaworld.com/article/2076269/build-your-own-languages-with-javacc.html
| title=Build your own languages with JavaCC
| date=2000-12-29
| last=Enseling|first=Oliver 
| publisher=[[JavaWorld]]
| accessdate=2020-01-02}}</ref>

JavaCC is similar to [[yacc]] in that it generates a [[parser]] from a [[formal grammar]] written in [[Extended Backus–Naur form|EBNF]] notation. Unlike yacc, however, JavaCC generates top-down parsers. JavaCC can resolve choices based on the next ''k'' input tokens, and so can handle [[LL parser|LL(''k'')]] grammars automatically; by use of "lookahead specifications", it can also resolve choices requiring unbounded look ahead.  JavaCC also generates lexical analyzers in a fashion similar to [[Lex (software)|lex]].  The tree builder that accompanies it, JJTree, constructs its trees from the bottom up.

JavaCC is licensed under a [[BSD license]].