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How do I properly format a imported properties file into SKILL to create shapes

Julia

I wrote a simple SKILL script which pulls the properties off a shape and prints into a text file.

LayerPair: ("m1" "drawing") 

ShapePts: ((0.0 0.0) (100.0 100.0))

PropertyName: Name PropertyValue: "p3" 

LxLyCoor: 0.000000:0.000000

DxDy:  100.000000:100.000000

EndShape!

 

I may want to add minor modifications to the coordinates then read the file back into SKILL and re-create the shapes using dbCreateRect, dbCreatePolygon..feeding it the same info I pulled off the shape.

I use an 'infile and gets' to read each line. The lines come in with the following syntax.

 "LayerPair: (\"m2\" \"drawing\") \n"

I've tried parseString and other manipulations unsuccessfully. I'm sure there is a clever and obvious way to do this.

I did look at the online support, forum and google but I may not be phrasing the question correctly. 

I'd appreciate some pointers on what I'm doing wrong with the syntax..this should be simple with SKILL. 

Parents
  • Andrew Beckett

    Hi Julia,

    For example, missing out the colons would make it much easier as you could then read each line using linereadstring or even just lineread from the original file. I also changed the coordinates to be as lists, and removed the exclamation mark from the EndShape statement. So:

    LayerPair ("m1" "drawing")
    ShapePts ((0.0 0.0) (100.0 100.0))
    PropertyName Name PropertyValue "p3"
    LxLyCoor (0.000000 0.000000)
    DxDy (100.000000 100.000000)
    EndShape

    Doesn't lose much in terms of readability, but you can then do:

    prt=infile("data.txt")
    while(data=lineread(prt)
      when(listp(data)
        case(car(data)
          (LayerPair  printf("LayerPair is %L\n" cadr(data)))
          (ShapePts  printf("Points: %L\n" cadr(data)))
          (PropertyName printf("Create a property %s with value %s\n" cadr(data) cadddr(data)))
          (LxLyCoor printf("LxLy is at %L\n" cadr(data)))
          (DxDy printf("DxDy is at %L\n" cadr(data)))
          (EndShape printf("The end of the shape as we know it!\n"))
        )
      )
    )
    close(prt)

    This then displays:

    Points: ((0.0 0.0) (100.0 100.0))
    Create a property Name with value p3
    LxLy is at (0.0 0.0)
    DxDy is at (100.0 100.0)
    The end of the shape as we know it!

    Now you could go a lot further and make it even more machine readable - but maybe this ends up being less human readable:

    (Shape
     LayerPair ("m1" "drawing")
     ShapePts ((0.0 0.0) (100.0 100.0))
     PropertyName Name PropertyValue "p3"
     LxLyCoor (0.000000 0.000000)
     DxDy (100.000000 100.000000)
    )

    Then you could use:

    prt=infile("data.txt")
    data=car(lineread(prt))
    close(prt)
    data->LayerPair  => ("m1" "drawing")
    data->PropertyValue => "p3"

    In other words, it's a disembodied property list, and you just slurped it all back into a DPL.

    Anyway, either approach is pretty reasonable and avoids complex parsing.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    Hi Julia,

    For example, missing out the colons would make it much easier as you could then read each line using linereadstring or even just lineread from the original file. I also changed the coordinates to be as lists, and removed the exclamation mark from the EndShape statement. So:

    LayerPair ("m1" "drawing")
    ShapePts ((0.0 0.0) (100.0 100.0))
    PropertyName Name PropertyValue "p3"
    LxLyCoor (0.000000 0.000000)
    DxDy (100.000000 100.000000)
    EndShape

    Doesn't lose much in terms of readability, but you can then do:

    prt=infile("data.txt")
    while(data=lineread(prt)
      when(listp(data)
        case(car(data)
          (LayerPair  printf("LayerPair is %L\n" cadr(data)))
          (ShapePts  printf("Points: %L\n" cadr(data)))
          (PropertyName printf("Create a property %s with value %s\n" cadr(data) cadddr(data)))
          (LxLyCoor printf("LxLy is at %L\n" cadr(data)))
          (DxDy printf("DxDy is at %L\n" cadr(data)))
          (EndShape printf("The end of the shape as we know it!\n"))
        )
      )
    )
    close(prt)

    This then displays:

    Points: ((0.0 0.0) (100.0 100.0))
    Create a property Name with value p3
    LxLy is at (0.0 0.0)
    DxDy is at (100.0 100.0)
    The end of the shape as we know it!

    Now you could go a lot further and make it even more machine readable - but maybe this ends up being less human readable:

    (Shape
     LayerPair ("m1" "drawing")
     ShapePts ((0.0 0.0) (100.0 100.0))
     PropertyName Name PropertyValue "p3"
     LxLyCoor (0.000000 0.000000)
     DxDy (100.000000 100.000000)
    )

    Then you could use:

    prt=infile("data.txt")
    data=car(lineread(prt))
    close(prt)
    data->LayerPair  => ("m1" "drawing")
    data->PropertyValue => "p3"

    In other words, it's a disembodied property list, and you just slurped it all back into a DPL.

    Anyway, either approach is pretty reasonable and avoids complex parsing.

    Regards,

    Andrew.

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