About RegEx

[Jean-Luc Arnaud <jlarnaud at cdmultimedia dot fr>]

Hello everybody,

I would like to understand what is RegEx, when to use it and why.

If I understand the RB doc, it's a way for manipulating strings : 
search, replacement, extraction, and so on. Am I right ?

Are RegEx commands more interesting than strings commands ? More 
powerful or more compatible (cross-platform) ?

Thank you for your help

JLA
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