Documentation and examples for javacc parser generator.

java compiler-compiler (javacc) is (according to sun) "the most popular parser generator" for use with java [tm] applications.

a parser generator is a tool that reads a grammar specification and converts it to a java program that can recognize matches to the grammar. in addition to the parser generator itself, javacc provides other standard capabilities related to parser generation such as tree building (via a tool called jjtree included with javacc), actions, debugging, etc.