zsh-workers
 help / color / mirror / code / Atom feed
From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh workers <zsh-workers@zsh.org>
Subject: Re: Allow slash in alternation patterns in limited cases?
Date: Mon, 11 Apr 2016 13:31:45 +0100	[thread overview]
Message-ID: <20160411133145.486788a5@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <CAHYJk3Qc8WsRAxav6wT8MmoEKj-hDByAA3ZCWHHbTt=+CaUQxQ@mail.gmail.com>

On Mon, 11 Apr 2016 14:06:10 +0200
Mikael Magnusson <mikachu@gmail.com> wrote:

> On Mon, Apr 11, 2016 at 1:07 PM, Peter Stephenson
> <p.stephenson@samsung.com> wrote:
> > The point is that, unlike the ~ case which is just a flag passed in to
> > the pattern match parser, it would longer done by pattern matching at
> > all.  It would be done in the glob code.  The pattern match code would
> > see the foo, bar, baz, bong, and it would it be reassembled higher up.
> > So it's not so much incompatible as something utterly different.
> 
> This is already the same difference we have between (foo|bar) in
> globbing and pattern matching though. If it's a glob, it's handled
> recursively by scanner() and if it's pattern, it's somewhere else (I
> don't even know where the general pattern matching code is by heart).

No, expressions like (foo|bar) are *only* handled by the pattern
matcher.  The scanner's sole responsibility is to till the pattern
matcher whether or not it should stop if it sees a "/".

pws


  reply	other threads:[~2016-04-11 12:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-10 20:36 Mikael Magnusson
2016-04-10 22:11 ` Bart Schaefer
2016-04-11  8:37   ` Peter Stephenson
2016-04-11 10:22     ` Mikael Magnusson
2016-04-11 10:29       ` Peter Stephenson
2016-04-11 10:47         ` Mikael Magnusson
2016-04-11 11:07           ` Peter Stephenson
2016-04-11 12:06             ` Mikael Magnusson
2016-04-11 12:31               ` Peter Stephenson [this message]
2016-04-11 13:45                 ` Mikael Magnusson
2016-04-11 13:50                   ` Peter Stephenson
2016-04-11 12:06       ` PATCH: Allow / in full pattern alternations Mikael Magnusson
2016-04-11 13:47         ` Peter Stephenson
2016-04-11 14:46           ` Bart Schaefer
2016-04-11 14:44         ` Bart Schaefer
2016-04-11 14:50       ` Allow slash in alternation patterns in limited cases? Bart Schaefer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20160411133145.486788a5@pwslap01u.europe.root.pri \
    --to=p.stephenson@samsung.com \
    --cc=zsh-workers@zsh.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/zsh/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).