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Remove repeat item from a list

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I have tried some way to remove some repeat item from a list.
Followed is the simple one

foreach(item list
list=cons(item remove(item list))
)

Do anyone have a more available command or fuction?


Originally posted in cdnusers.org by leonlee
Parents

  • You could try using the unique function

    For example, this will weed out all duplicate via names from a list:

    via_name_list = unique(sort( via_name_list 'alphalessp))


    A more-generic-but-trickier method involves using a foreach loop and the member funtion.
    Someting like:


    ulist = nil
    foreach( obj obj_list
        unless( member( obj ulist)
            ulist = cons( obj ulist)
        );end-unless
    );end-foreach



    HTH,

    Chris Walters
    local Cadence guru
    ()

    PS - anyone know of a position for a(nother) Cadence guru?



    Originally posted in cdnusers.org by kerchunk
Reply

  • You could try using the unique function

    For example, this will weed out all duplicate via names from a list:

    via_name_list = unique(sort( via_name_list 'alphalessp))


    A more-generic-but-trickier method involves using a foreach loop and the member funtion.
    Someting like:


    ulist = nil
    foreach( obj obj_list
        unless( member( obj ulist)
            ulist = cons( obj ulist)
        );end-unless
    );end-foreach



    HTH,

    Chris Walters
    local Cadence guru
    ()

    PS - anyone know of a position for a(nother) Cadence guru?



    Originally posted in cdnusers.org by kerchunk
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