Re: readdir extension on windows with getline

[Jim Dailey]

From: Jim Dailey <jim.dailey@alumni.utexas.net>
> > I have successfully used the readdir extension on windows with directory
> > names on the command line.
> >
> > But if I try to execute "getline < {some directory path}", my script
> > hangs. I
> > have to Ctrl-C to get control.  Ctrl-Z (EOF) does nothing to move things
> > along.
> >
> > I have tried using getline with a directory path in BEGIN, in END, and in a
> > normal pattern, each time with the same result.
> >
> > It seems like the extension doesn't work with getline on windows. Here
> > is the
> > basic attempt:
> >
> >       PathCount = split(ENVIRON["AWKPATH"],AwkPath,/;/)
> >       for (i = 1; i <= PathCount; i++) {
> >           while (getline < AwkPath[i]) {
> >               split($0,Data,/\//)
> >               print Data[2]
> >           }
> >       }
> >
> > If I replace AwkPath[i] with an actual path like
> > "C:\etc\pscal\pscal\gawk\lib",
> > there is no change in behavior.
> >
> > If you have successfully used readdir with getline in windows, perhaps
> > you have
> > some idea what I may be doing incorrectly?
> I get the same results on Windows and on GNU/Linux.
>
> AFAICT, the readdir extension cannot be used with getline, since
> getline redirection seems to ignore the registered input parsers.
>
> IOW, this is not currently supported.
I guess I was misled by section 17.7.6 of version 5.1 of the manual:

   The readdir extension adds an input parser for directories. .. When
   this extension is in use, instead of skipping directories named on
   the command line (or with getline), they are read, with each entry
   returned as a record.

It seems "(or with getline)" should be removed from the manual.

Thanks,
FormerBiosGuy