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

The second method is a little cleaner and allows partial negation of netnames in addition to the $.

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

^ is the begininig, $ is the end

() is a capturing group

~? is zero or one ~ at the start of the matching string

[a-zA-Z_0-9+-.] is the list of legal characters

+ is one or more of the characters of the legal character list

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

^ is the begininig, the final $ is the end

() is a capturing group

[a-zA-Z_0-9+-.~$] is the list of legal characters

* is zero or more of the characters in the legal character list

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1. What is the significance of removing the "?"  -- this allows for the partial negation of netnames -- net~name~fred would have the inversion bar only over name.
2. What is the significance of changing the "+" to "*" -- one vs. zero
3. Did the position of "~" in the string make a difference? -- see the first answer...