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Text::Balanced - Extract delimited text sequences from strings. The various extract_... subroutines may be used to extract a delimited string (possibly after skipping a specified prefix string). The search for the string always begins at the current pos location of the string's variable (or at index zero, if no pos position is defined). -Anton

Given a piece of text and some search terms, produces an object which locates the search terms in the message, extracts a reasonable-length string containing all the search terms, and optionally dumps the string out as HTML text with the search terms highlighted in bold.

Text::Diff provides a basic set of services akin to the diff(1) utility. It is not anywhere near as feature complete as diff(1), but it is better integrated with Perl and available on all platforms. It is often faster than shelling out to a system's diff(1) executable for small files, and generally slower on larger files. -Anton <tobez@FreeBSD.org>

A plethora of tools exist that operate as filters: they get data from a source, operate on this data, and write possibly modified data to a destination. In the Unix world, these tools can be chained using a technique called pipelining, where the output of one filter is connected to the input of another filter. Some non-Unix worlds are reported to have similar provisions. To create Perl modules for filter functionality seems trivial at first. Just open the input file, read and process it, and write output to a destination file. But for really reusable modules this approach is too simple. A reusable module should not read and write files itself, but rely on the calling program to provide input as well as to handle the output. Text::Filter is a base class for modules that have in common that they process text lines by reading from some source (usually a file), manipulating the contents and writing something back to some destination (usually some other file). This module can be used 'as is', but its real power shows when used to derive modules from it. -Anton <tobez@FreeBSD.org>

This module provides a flexible way to wrap and flow text for both ASCII and non-ASCII outputs. The main purpose of this module is to provide text wrapping and flowing features without being tied down to ASCII based output and fixed-width fonts. My needs were for a more sophisticated text control in PDF and GIF output formats in particular.

This module is for reading record-oriented data. The most common example have records separated by newlines and fields separated by commas or tabs, but this module aims to provide a consistent interface for handling sequential records in a file however they may be delimited.

This is a module that parses WDDX packets. Which are well supported in Allaire Coldfusion, and pretty useful. This is from the WDDX.org web site: "The Web Distributed Data Exchange, or WDDX, is a free, open XML-based technology that allows Web applications created with any platform to easily exchange data with one another over the Web."

The Sitemap Protocol allows you to inform search engine crawlers about URLs on your Web sites that are available for crawling. A Sitemap consists of a list of URLs and may also contain additional information about those URLs, such as when they were last modified, how frequently they change, etc.

This is a very simple filter. One common cause of grief (and programmer error) is that XML parsers aren't required to provide character events in one chunk. They can, but are not forced to, and most don't. This filter does the trivial but oft-repeated task of putting all characters into a single event.

XML::Parser::EasyTree adds a new "built-in" style called "EasyTree" to XML::Parser. Like XML::Parser's "Tree" style, setting this style causes the parser to build a lightweight tree structure representing the XML document. This structure is, at least in this author's opinion, easier to work with than the one created by the built-in style.