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Re: Vileserv on macOS issue

From: Thomas Dickey
Subject: Re: Vileserv on macOS issue
Date: Thu, 12 Jan 2023 03:56:13 -0500
User-agent: Mutt/1.10.1 (2018-07-13)

On Wed, Dec 21, 2022 at 03:08:48PM +1100, Brendan O'Dea wrote:
> On Wed, 21 Dec 2022 at 09:33, Robert Sturrock <> wrote:
> > read(0x4, "/Users/rns/tmp/fortune-cookie.txt\n\n\0", 0x2000)             = 
> > 35 0
> > write(0x1, "/Users/rns/tmp/fortune-cookie.txt\n\n\n\0", 0x24)            = 
> > 36 0
> That looks pretty much what I would expect vileserv to do: it reads
> from the socket, and writes to stdout, which is a pipe to the running
> vile instance.
> > Any clues as to where the issue might be or how I might be better debug 
> > this?  I suspect I’m missing some obvious here!
> Not quite sure what's going on.  You could also trace the vile
> process, where you should see a corresponding read from the pipe.
> In addition to that, I'd start putting some print statements into the
> readfiles subroutine in  Anything sent to stdout there
> should appear in the messages buffer.  Make sure to ":set pm" first to
> cause that buffer to popup.
> Then just put lines in to see what's going wrong, say adding:
>   print "Entering readfiles\n";
> at the start of that subroutine (line 171), then:
>   print "Got file $fileName\n";
> after the "chomp $fileName;" statement.  Keep adding statements until
> you find what is not working as expected.
> About the only thing which springs to mind that may be a problem is
> that the code uses newlines to delimit lines, and Macs at some point
> used carriage returns.  Probably not the case since OS X though.
> One unrelated, and slightly annoying thing that I noticed is that
> printing to the minibuffer now elicits a warning.  Must look into what
> changed in more recent Perl versions.
>   :perl use warnings; print "foo\n";
> for example produces a warning about an uninitialised value, almost
> certainly in the guts of perl.xs.  I'll maybe poke at that over
> Christmas.

I haven't gotten to this either - I'm currently investigating Chris Green's
report, expecting to complete that this week (so far, looks like a small
change to map.c which could be applied to 9.8x in Debian).

Perhaps I'll do something with this as well.  

Thomas E. Dickey <>

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