Louis,Steve,
Thank you very much for your help.
I'll study your explanations and sample programs.
By the way, I'm now studying how to use generators as filters.
every s := linegw(right(msperm(&ucase,1 to 2) \256,2) | &null) do write(s)
My view of the above program is
1 to 2 -(msperm)-> "A","B",..,"IV" -(right)-> " A"," B",..,"IV", + &null
-(linegw)-> " A B .. Z","AA BB ZZ",..,"IA .. IV"
I want to write programs in the form below, like pipe/filter in O/S.
generator1-> (data stream1) -> filter/generator2 -> (data stream2) ->
filter/generator3 -> (data stream3) -> ...
I expect this form increases the flexibility of programs.
Thanks,
Hiroshi Shinohara
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