$TSTing positional vars

[sidki3003]

(Oct. 21, 2010 02:19 AM)JJoe Wrote:  The left side of "(|\0)" matches 'nothing' and keeps \0 empty.

Is there a better workaround?

It depends on the actual situation. Normally you can rearrange your matching expression, so that the positional variable always has something to capture. Which is what i prefer. As a rule of thumb, matching is quicker than failing.

If rearranging isn't possible, your workaround looks fine.

Quote:Of interest, the test window results aren't always the same as the real world.

The last (third) replace line in the page code example is still there, but further down the page.