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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: Running an editor from ANSI C
Date: Sat, 8 Jun 2024 22:13:49 +0300
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On Fri, 7 Jun 2024 23:57:58 -0000 (UTC)
Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

> On Fri, 7 Jun 2024 14:24:29 +0300, Michael S wrote:
> 
> > On Fri, 7 Jun 2024 10:47:57 -0000 (UTC)
> > Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
> >   
> >> On Fri, 07 Jun 2024 02:37:42 -0700, Keith Thompson wrote:
> >>   
> >> > As for portability, I'm not aware of the $EDITOR convention being
> >> > used on non-POSIX systems.  
> >> 
> >> Can non-POSIX systems offer anything better? Any worthwhile
> >> alternative?
> >> 
> >> No.  
> > 
> > Yes. The one below is better.
> > ShellExecute(NULL, "edit", filename, NULL, NULL, SW_NORMAL);  
> 
> On Windows, that combines the command-line arguments into a single
> string. Which then has to be teased apart by the receiving program.
> Assuming the two ends can agree on consistent rules for doing so.

You asked for something that is better *for user* than $EDITOR.
The one above is very clearly better for user than $EDITOR. 
It is smarter - different editors are selected for different file types.
And it achieves that with zero effort on part of app developer.
I would be surprised if good Unices don't have something similar. But
those better ways of lounching editor are not in POSIX.