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Reqular expression in skill programmin

Vaasu

Can anyone explain me how to use use the regular expression in skill programming........

I'm geeting many info from cadence from that I want only PMOS and  NMOS information from this command geGetEditCellView()~>instances~>cellName

Result is  ("N_18_MM" "N_18_MM" "N_18_MM" "opin" "ipin" "ipin" "ipin" "ipin" "ipin" "ipin""ipin" "P_18_MM" "P_18_MM" "P_18_MM")

From this I want only  "N_18_MM" &"P_18_MM" info

  • Andrew Beckett

    If using IC61X, you can use:

    pat=pcreCompile("^[PN]_18") ; or "^[PN]_18_MM$" if you want to be complete
    instances=setof(inst geGetEditCellView()~>instances pcreExecute(pat inst~>cellName))

    I'm assuming you wanted the instance objects, not the names.

    In IC5141, you'd have to use the older rex functions. PCRE is the Perl Compatible Regular Expression library and has a much richer pattern matching syntax than the very basic "rex" regular expressions. For rex, you'd use:

    rexCompile("^[PN]_18")
    instances=setof(inst geGetEditCellView()~>instances rexExecute(inst~>cellName))

    In this specific case, the regular expression needed is very simple, so either would do.

    You don't even really need a regular expression:

    instances=setof(inst geGetEditCellView()~>instances member(inst~>cellName) '("P_18_MM" "N_18_MM")) )

    Best Regards,

    Andrew.

  • tweeks

    This approach is more complex, but also more efficient for designs with a lot of instances: 

    instances = 
  foreach(mapcan instHeader setof(instHeader deGetCellView()->instHeaders 
                                 member(instHeader->cellName '("P_18_MM" "N_18_MM")))
      instHeader->instances
  )
  • Vaasu

     Yea it is working thanks for your suggestion

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