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String operations in skill

shazzy

Okay so we have a list 'p' constituting of elements as pin names. 

 p = ("GIO<0>"  "G1E<1>"  "GAE2<2>"  "G3F1<3>")

 

And the task is to add the under-braces numeric value with 4 and convert this array into

  p = ("GIO<4>"  "G1E<5>"  "GAE2<6>"  "G3F1<7>")

 

I did these operations in perl and also bridged the gap between perl and skill. 

But since this script has to be linked to a bind key hence I want to do the string operations in skill only. 

Is there any skill code or so by which we can edit the numeric portion ( only under the braces) of the string and then return it back to the 'p' array?

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  • dmay

    Here is one way to do it:

    p = list("GIO<0>"  "G1E<1>"  "GAE2<2>"  "G3F1<3>")

    procedure(myAdjustBit(nameList delta)
      let((newNameList parsed prefix suffix newSuffix newName)
        foreach(name nameList
            parsed=parseString(name "<>")
            prefix=car(parsed)
            suffix=evalstring(cadr(parsed))
            newSuffix=suffix+delta
            newName=sprintf(nil "%s<%d>" prefix newSuffix)
            newNameList = cons(newName newNameList)
        )
        reverse(newNameList)
      ) ;let
    ) ;proc

    myAdjustBit(p 4)

    Derek

Reply
  • dmay

    Here is one way to do it:

    p = list("GIO<0>"  "G1E<1>"  "GAE2<2>"  "G3F1<3>")

    procedure(myAdjustBit(nameList delta)
      let((newNameList parsed prefix suffix newSuffix newName)
        foreach(name nameList
            parsed=parseString(name "<>")
            prefix=car(parsed)
            suffix=evalstring(cadr(parsed))
            newSuffix=suffix+delta
            newName=sprintf(nil "%s<%d>" prefix newSuffix)
            newNameList = cons(newName newNameList)
        )
        reverse(newNameList)
      ) ;let
    ) ;proc

    myAdjustBit(p 4)

    Derek

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