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Annotation of 43BSD/contrib/icon/book/11/mark.icn, revision 1.1.1.1

1.1       root        1: procedure mark(s)
                      2:    local line, marker, i
                      3:    while line := read() do {
                      4:       marker := ""     # initialize marker
                      5:       every i := find(s,line) do
                      6:          marker := left(marker,i - 1) || "|"
                      7:       write(line,"\n",marker)  # write line and marker
                      8:       }
                      9:    return
                     10: end

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