I have updated my toy ZAAP ZbarRE to test Perl Compatible Regular Expressions (PCRE).
This now uses fast polling (see discussion in http://www.ztw3.com/forum/forum_entry.php?id=106619 )
This provides a worthwhile improvement in speed, but overall speed is still limited by ZTreeWin polling, and especially ZTreeWin screen updating.
You can minimise the impact by reducing the ZTreeWin window size, and using split screen to further minimise screen updating, or by covering the ZTreeWin window with another application.
http://binnie.id.au/Downloads/ZbarRE.zip
During this development I made some minor changes to my Zbar library to minimise errors if multiple ZAAP are accessing zbar.dat and provide enhanced error reporting, and made ZbarView handle Assist pamphlets better.
Zbar source is in:-
http://binnie.id.au/Downloads/ZbarSource.zip
http://binnie.id.au/Downloads/ZbarView.zip