Possible renaming masks

Assume a download directory C:\Downloads\, and a download URL http://www.example.org/dir1/dir2/document.doc.
Some possible renaming masks and results:

Renaming maskResult
*name*.*ext*C:\Downloads\document.doc
*name*_*hh*.*mm*.*ext*C:\Downloads\document_23.30.doc
*name*_(*text*).*ext*C:\Downloads\document_(click here to download).doc
*num*_*name*.*ext*C:\Downloads\032_document.doc
(*num* tag will increment on every new dta session, it's a great way to avoid duplicate filenames!)
*ext*\*name*.*ext*C:\Downloads\doc\document.doc
*m*-*d*-*y*\*name*.*ext*C:\Downloads\05-27-2006\document.doc
*url*\*name*.*ext*C:\Downloads\www.example.org\document.doc
*url*\*subdirs*\*name*.*ext*C:\Downloads\www.example.org\dir1\dir2\myfile.txt
*url*\*subdirs*-*name*.*ext*C:\Downloads\www.example.org\dir1-dir2-myfile.txt