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Annotation of 43BSD/contrib/icon/src/cmd/trim.icn, revision 1.1

1.1     ! root        1: #      TRIM(1)
        !             2: #
        !             3: #      Trim lines
        !             4: #
        !             5: #      Ralph E. Griswold
        !             6: #
        !             7: #      Last modified 7/10/83
        !             8: #
        !             9: 
        !            10: procedure main(x)
        !            11:    local n, i, pad, s, line
        !            12:    n := 80
        !            13:    pad := 0
        !            14:    i := 0
        !            15:    while i < *x do {
        !            16:       s := x[i +:= 1] | break
        !            17:       if s == "-f" then pad := 1
        !            18:       else if not(n := (0 <= integer(s))) then stop("usage: trim [n] [-f]")
        !            19:       }
        !            20:    while line := read() do {
        !            21:       line := line[1+:n]
        !            22:       line := trim(line)
        !            23:       if pad = 1 then line := left(line,n)
        !            24:       write(line)
        !            25:       }
        !            26: end

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