On Fri, 15 May 2020, at 19:25, Tom Brennan wrote:
> That's a Rexx I never tried, probably out of fear of the "OO"
> designation :)
You can write code in 'Classic' REXX, in ooREXX and incorporate
no, or just a little or a lot of OO stuff.
Most of my code is more or less Classic, but (on Windows) I quite
often read an existing file by eg:
mystream = .stream~new("C:\this\that\other.file")
(which is vaguely analogous to allocating a dd in TSO), then
linez = mystream~arrayin
which forms an ooREXX array object (named linez) from the lines of
data, then
mystream~close
which closes the file. Then eg
say "The file has" linez~items "lines"
do aline over linez
say "a line:" aline
end
will list all of the lines. ooREXX does now have an "execio" subcommand
but before that came about this small excursion into objects is how I have
quickly and easily read a text file without having to loop to do the I/O
explicitly one record at a time. The array object isn't a stem, but one can
of course access each element within it explicitly, as well as using the "do
... over" iterative thing.
--
Jeremy Nicoll - my opinions are my own.
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