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Annotation of 43BSD/contrib/icon/book/17/swap.icn, revision 1.1.1.1

1.1       root        1: procedure swap(s)
                      2:    static labels, trans, max
                      3:    initial {
                      4:       labels := "12"
                      5:       trans := "21"
                      6:       max := *labels
                      7:       trans := swap(string(&cset))
                      8:       labels := string(&cset)
                      9:       max := *labels
                     10:       }
                     11:    if *s <= max then
                     12:       return map(left(trans,*s),left(labels,*s),s)
                     13:    else return swap(left(s,*s - max)) ||
                     14:       map(trans,labels,right(s,max))
                     15: end

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