Open Source Java Interpreters

Piccolo is the fastest SAX parser for Java, supporting SAX1, SAX2, and JAXP (SAX only). Piccolo is different from other parsers in that it was developed using parser generators. It weighs 160K including XML APIs. See http://piccolo.sf.net for more info.

Helium (He) is a lightweight and extremely useful templating engine based entirely on XML. He is 100% Java and 100% TDD (Test Driven Development).

Jess-mode is a collection of Emacs Lisp files designed to facilitate the development of Java Expert System Shell (JESS) applications. Currently, the package consists of a major mode for editing source and an inferior mode used to run the Jess interpreter

Java library for Schema based file parser. Csv and flat file parser and writer. This is a java library that enables to parse and write Csv and flat files based on a schema.

Kawa is a full Scheme implementation. It implements almost all of R5RS (for exceptions see Restrictions), plus some extensions.

A run-time configurable character stream tokenizer that allows the user to define token classes via regular expressions. The developer is not limited to predefined notions of whitespace, commenting, or word modalities.

Nalasys is a natural language system that allows users to specify instructions to the computer in natural language. By defining words with intrinsic data the system recognizes, a user will be able to program a system using his own words. For now the system can use several programmatic languages like SQL, Javascript, Groovy or JSP expression language. It also has a default language with no keywords where you can add words defined with objects in memory or from other languages.

Introspect on running programme, view and alter object fields and methods. Edit the code of any method at runtime; apply the changes to any combination of objects, such as an array, or a complete class. Complete rewrite underway available Jan 2007.

Trison has the goal to become a template engine with support of php, java and the transform ability to javascript to intergrate client/serverside generation of code.

XVCL is a general-purpose language for configuring variants in all sorts of textual documents (including programs). It is based on frame technology. XVCL processor automates the customization process to produce system from specification of variants.

This is a small program that enable you to generate XML from your 'home made' document format (should be a text file...) following a very simple control file.

Use Xilize to create XHTML pages or entire websites with just a plain-text editor. The markup is similar to Textile and extensible via BeanShell. Run as a jEdit plugin, from the command line, or embed in a Java program. Small, fast, easy-to-use.

Java library that emulates the Perl 5 "transliterate" operation on a given string. Most Perl 5 features are supported, including all the standard modifiers and most Perl escape sequences. Patterns are compiled for speed, and runtime performance is fast.