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Re: [PATCH] ed with perl-compatible regular expressions
From: |
John Cowan |
Subject: |
Re: [PATCH] ed with perl-compatible regular expressions |
Date: |
Tue, 27 Jul 2021 12:07:08 -0400 |
On Tue, Jul 27, 2021 at 3:07 AM Paul Jackson <pj@usa.net> wrote:
The less ed(1) changes, the happier I am.
>
I sympathize entirely with that point of view. However, if all non-Posix
features are gated behind command-line options, particularly GNU-style
options like --pcre, then I think everyone's interests are served:
- If you want PCRE matching, use alias ed='ed --pcre';
- If you don't, don't use an alias;
- To bypass the alias temporarily for performance or whatever reasons,
type \ed to the shell.
It's unlikely you'd type such an extension by mistake, unlike (say) ed -P.
I already use alias ed=ed -p '* ' because I like prompts, but if I'm
running an ed script, I use \ed <foo.ed.
Re: [PATCH] ed with perl-compatible regular expressions, Shawn Wagner, 2021/07/27