Regular expressions and case structures?

[Bryan]

Does anybody know if there is a way to select a case using regular expressions instead of exact strings or ranges?

What I want to be able to do is the following:

Say I have some strings like this:

"FOO BAR"

"FOO POST"

"HELLO WORLD"

"HELLO USA"

What I want to do is have a case structure with 2 cases... "FOO" and "HELLO". If I wire any of the above strings to the case, I want it to select the case that matches the string segment before the whitespace, regardless of what's after the whitespace.

Now the kicker... I would like to do it without using "Match Pattern" or any other extra VIs.

I tried entering regular-expression-type values into the case structure, and got a non-unique case error. Is there a regular expression-type syntax that can be entered to accomplish this? I've already tried using "..." as explained in LabVIEW Help, and it appears I can only use it in one case, or I'm using it wrong.

If LabVIEW doesn't support regular expressions in their case structures... perhaps they should consider it for future versions?

[Bryan]

Nevermind, I decided on an alternative method.

[Michael Aivaliotis]

If LabVIEW doesn't support regular expressions in their case structures... perhaps they should consider it for future versions?

Sounds like you should post this to the wish list:

http://forums.lavausergroup.org/index.php?showforum=14

[Bryan]

Done

[Rolf Kalbermatter]

Or you could simply specify a range. Works for strings too!

"HELLO ".."HELLO!"