Vector instances (like C1[3..1] or M1[3:0]) cause problems in drc procedures

[StefanSchippers]

IHP symbols have the following attribute set (example here is for a mim cap):

drc="mim_drc @name @symname @model @w @l"

After Xschem expands the '@' parameters the expression becomes (if using C1[3..1] as vectored instance name):

drc="mim_drc C1[3..1] cap_rfcmim cap_rfcmim 10.0e-6 10.0e-6"

this causes an error in the TCL interpreter as it tries to evaluate command 3..1.
We need to protect all @name occurrences with curly braces:

drc="mim_drc {@name\} @symname @model @w @l 

(backslash before closing '}' is needed to tell Xschem the '}' is not part of the @ parameter name).
see issue StefanSchippers/xschem#380

If you want to be even more on the safe side you might want to protect also @symname and @model.
This is however not needed if these parameters do not contain command substitution characters ([ ... ]) or variable substitution characters ($...)

[KrzysztofHerman]

@StefanSchippers thank you for reporting this issue.

[p-fath]

@StefanSchippers Really thanks for the explanations, I thought this is an xschem issue.

@KrzysztofHerman If the actual LVS script allows it, it would be very nice if we also introduce here the m-factor (multiplier) in the RF mim caps symbol, as in the standard mim caps it is possible to use the m-factor.