ket fn: ssplit

ssplit:
    description:
        ssplit ket
        splits the ket into a sequence

        ssplit["str"] ket
        splits the ket into a sequence, splitting on str

    examples:
        ssplit |abcde>
            |a> . |b> . |c> . |d> . |e>

        ssplit[", "] |a, b, c>
            |a> . |b> . |c>

        ssplit[" and "] |a, b, c and d>
            |a, b, c> . |d>

        ssplit[", "] ssplit[" and "] |a, b, c and d>
            |a> . |b> . |c> . |d>

    see also:
        split, smerge