Description:

Jparsec is a recursive-desent parser combinator framework
written for Java. It constructs parsers in native Java
language only.
Jparsec stands out for its combinator nature. It is no
parser generator like YACC or ANTLR. No extra grammar file
is required. Grammar is written in native Java /C#
language, which also means you can utilize all the utilities
in the Java/.Net community to get your parser fancy.
Jparsec is an implementation of Haskell Parsec on the Java
platform. Feature highlights:
* operator precendence grammar.
* accurate error location and customizable error message.
* rich set of pre-defined reusable combinator functions.
* declarative API that resembles BNF.