How to programtically rename a selected pin

Not exactly what you want, but hopefully enough to get you started...

/* abReplaceTermNames.il

Author     A.D.Beckett
Group      Custom IC (UK), Cadence Design Systems Ltd.
Language   SKILL
Date       Jun 26, 2007 
Modified   
By         

Function to replace a substring in a terminal - uses regular
expression functions. For more details, see the comments below,
but:

abReplaceTermNames(cvId "from" "to")

is a typical usage.

***************************************************

SCCS Info: @(#) abReplaceTermNames.il 06/26/07.13:26:16 1.1

*/

/******************************************************************
*                                                                 *
*  abReplaceTermNames(cvId pattern replace @optional (index 1))   *
*                                                                 *
*    Look for any terminal names in the view with a name which    *
*   matches the regular expression pattern. When found, replace   *
*    the matching pattern with the string replace. Normally it    *
* will replace the first occurrence, but that can be changed with *
* the optional index argument. Returns t if anything was changed. *
*                                                                 *
******************************************************************/

procedure(abReplaceTermNames(cvId pattern replace @optional (index 1))
    let((existTerm newName newNet changed)
	rexCompile(pattern)
	foreach(term cvId~>terminals
	    when(rexExecute(term~>name)
		newName=rexReplace(term~>name replace index)
		existTerm=dbFindTermByName(cvId newName)
		if(existTerm then
		    warn("Cannot rename %s to %s as terminal already exists with that name" term~>name newName)
		else
		    ;----------------------------------------------------
		    ; Update the name, and update the net too
		    ; (by creating a new one and merging it)
		    ;----------------------------------------------------
		    term~>name=newName
		    newNet=dbMakeNet(cvId newName)
		    dbMergeNet(newNet term~>net)
		    ;----------------------------------------------------
		    ; Then update any labels attached to pin figures;
		    ; textDisplays will be updated automatically, so it's
		    ; only conventional labels we need to worry about
		    ;----------------------------------------------------
		    foreach(pin term~>pins
			foreach(child pin~>fig~>children
			    when(child~>objType=="label"
				child~>theLabel=
				    rexReplace(
					child~>theLabel
					replace
					index
				    )
			    ) ; when label
			) ; foreach child
		    ) ; foreach pin
		    changed=t
		) ; if
	    ) ; when
	) ; foreach
	changed
    ) ; let
) ; procedure

Regards,

Andrew.

Thanks Andrew, I think that's exactly what I'm looking for.

 Marvin 

 Hi,

I used  "abReplaceTermNames" function to change the pin names in my layout. There is one interesting thing that the net name of the terminal is not changed with the code but only the terminal name is changed.

However, if I manually edited the terminal name once, then use the code to change the terminal name and merge the net, both the terminal name and net name would be changed. Could you give me some idea why this is happening?

 My purpose is to rename the "vdd" pin to "vdd!" in order to match with the schematic to pass LVS. By only changing the terminal name without merging the net, the LVS does not complain, I am wondering what would be the issue if I only change the terminal name without merging the net.

 Thanks,

 Min

As I responded to this question on the comp.cad.cadence news group, I won't also respond here (too tricky to keep track of two separate threads; I'm a bear of very little brain).

Andrew.