Patrice,

REGEX
======
The Regexp is very limited. If you want to use real regular
expressions, you're better off buying a 3rd party library. I thought I
was going to need one at one point, and the only one I found is this
one for $99 from Aivosto: http://www.aivosto.com/regexpr.html

HASH TABLES
============
The best way to create hash tables in Excel VBA is to set a reference
to the Microsoft Scripting Runtime library. It contains a Dictionary
object that works like a Perl hash structure. The help samples all use
strings, but you can also store objects in them.

Quick Tip 1: Word's object model also includes a Dictionary object, so
if you're doing any automation of Word from Excel make sure to fully
declare your variables like "Dim d As Scripting.Dictionary" instead of
just "Dim d As Dictionary".

Quick Tip 2: After installing and setting references to the libraries,
hit F2 to open the Object Browser. Select the regex or scripting
library from the drop down to see the available properties and
methods. Excel's VBA usually won't launch the Help file for a
referenced library when you hit F1, so this is often the fastest,
easiest way to find out what you want to know.

HTH,

Nicholas Hebb
BreezeTree Software
http://www.breezetree.com