Devise and build an object representation of regular expressions

[GoogleCodeExporter]

RegexPal's regex parser (used for the syntax highlighting) currently does
nothing more than build the HTML for syntax highlighting. No knowledge of
the regex object is preserved beyond what is needed for the remaining
parsing steps.

Instead, the parser should build a complete representation of the regex as
an object, which can then not only be used to construct the HTML for syntax
highlighting, but also reused for additional features like a real-time
regex explanation tree.

Original issue reported on code.google.com by steve...@gmail.com on 25 Dec 2007 at 5:32