parboiled is an open-source

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

library released under an

Apache License The Apache License is a permissive free software license written by the Apache Software Foundation (ASF). It allows users to use the software for any purpose, to distribute it, to modify it, and to distribute modified versions of the software ...

. It provides support for defining PEG parsers directly in Java source code. parboiled is commonly used as an alternative for

regular expressions A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of character (computing), characters that specifies a pattern matching, match pattern in string (computer science), text. Usually ...

or parser generators (like ANTLR or JavaCC), especially for smaller and medium-size applications. Apart from providing the constructs for grammar definition parboiled implements a complete recursive descent parser with support for

abstract syntax tree An abstract syntax tree (AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code) written in a formal ...

construction, parse error reporting and parse error recovery.

References

External links

Official parboiled web siteExample of a complete Java 6 parser written with parboiled
XML software Java (programming language) libraries Free computer programming tools Parser generators {{compu-library-stub