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Annotation of 43BSD/contrib/icon/samples/seqimage.icn, revision 1.1.1.1

1.1       root        1: #
                      2: #          R E S U L T   S E Q U E N C E   I M A G E S
                      3: #
                      4: 
                      5: #  This program illustrates a technique for producing string images
                      6: #  of result sequences, using co-expressions.
                      7: 
                      8: procedure main()
                      9:    write(Seqimage(create 1 to 10))
                     10:    write(Seqimage(create &fail))
                     11:    write(Seqimage(create (1 to 10 by 2) | (10 to 1 by -2)))
                     12:    write(Seqimage(create !"abc" || !"xy"))
                     13:    write(Seqimage(create Seqimage | main))
                     14:    write(Seqimage(create |read()))
                     15: end
                     16: 
                     17: procedure Seqimage(e)
                     18:    local s
                     19:    s := ""
                     20:    while s ||:= ", " || image(@e)
                     21:    return "{" || s[3:0] || "}" | "{}"
                     22: end

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