Description:

Text_Highlighter is a package for syntax highlighting.

It provides a base class providing all the functionality, and a
descendent classes geneator class.

The main idea is to simplify creation of subclasses implementing
syntax highlighting for particular language. Subclasses do not
implement any new functionality, they just provide syntax
highlighting rules. The rules sources are in XML format.

To create a highlighter for a language, there is no need to code a new
class manually. Simply describe the rules in XML file and use
Text_Highlighter_Generator to create a new class.