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DxD Tools/Verify drc-002 rule "values" format

Question asked by Jack on Aug 25, 2015
Latest reply on Jun 16, 2016 by jeff@viavi

I'm trying to follow the 7.9.4 tutorial, but I don't understand the string of acceptable values in the drc-002 rules settings

It had me change the "Values" string

from

^(~?[a-zA-Z_0-9+-.]+)$

to

^([a-zA-Z_0-9+-.~$]*)$

so that the characters "~" and "$" are acceptable in net names

 

What is the significance of removing the "?"

What is the significance of changing the "+" to "*"

Did the position of "~" in the string make a difference?

 

I tried to click "HELP" from the Verify/Tools dialog, but it doesn't explain the syntax

 

thanks,

Jack (aka "the new guy")

 

Here's a pic:

drc-002.png

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