Highlight is a universal converter from source code to HTML, XHTML, RTF, TeX, LaTeX, SVG, BBCode, and terminal escape sequences. (X)HTML and SVG output are formatted by Cascading Style Sheets. It supports more than 170 programming languages, and includes 80 highlighting color themes. The configuration files are Lua scripts with plug-in support. The converter includes some features to provide a consistent layout of the output code.
TXR is a new data munging language. TXR's special pattern language provides template-based matching of entire documents or large sections of documents. It also contains a language for functional and imperative programming. It is written in C and takes the form of a utility that is portable to Unix-like platforms and Windows.
JSX serializes Java objects to XML. You can persist objects, evolve them, and send them over the network and between applications. Your object data becomes human-readable and human-writable. You can test it, search it, profile it, audit it, and edit it with ordinary text and XML tools. JSX handles all POJOs and also all classes that require Java's own object serialization.
Isearch is software for indexing and searching text documents. It supports full text and field based search, relevance ranked results, Boolean queries, and heterogeneous databases. It can parse many kinds of documents "out of the box," including HTML, mail folders, list digests, SGML-style tagged data, and USMARC. It can be extended to support other formats by creating descendant classes in C++ that define the document structure. It is pretty easy to customize in this way, provided that you know some C++ (and you will need to ftp the source code). A CGI interface is also included for Web based searching.