unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Paul Eggert <eggert@cs.ucla.edu>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: 37659@debbugs.gnu.org
Subject: bug#37659: Mattias Engdegård <mattiase <at> acm.org>
Date: Fri, 11 Oct 2019 16:07:25 -0700	[thread overview]
Message-ID: <bfbec61a-873c-21be-f9eb-c26c0ad5f395@cs.ucla.edu> (raw)
In-Reply-To: <EEEF0800-40AC-4121-A55C-6B0C3804D566@acm.org>

Thanks for the proposed patch. Two thoughts:

1. Instead of the symbol 'unordered-or' (which is remarkably hard to 
read), I suggest using the ASCII letter 'V'. This ASCIIfies the Unicode 
symbol U+2228 LOGICAL OR (∨). If you prefer, you could make the Unicode 
symbol an alias for 'V', or use lower-case ASCII 'v', or whatever. The 
point is that '(unordered-or A B)' is too hard to read with all those 
'or's in there.

2. Re this patch:

> -    ((or 'anychar 'anything)      (rx--translate-form '(or nonl "\n")))
> +    ((or 'anychar 'anything)      (cons (list "[^z-a]") t))

Is there a reason this uses (cons (list "[^z-a]") t) rather than 
'(("[^z-a]") . t) ? I realize neighboring code does something similar, 
but it's not clear to me why it's important to construct new objects 
here instead of using literals.





  parent reply	other threads:[~2019-10-11 23:07 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-08  9:36 bug#37659: rx additions: anychar, unmatchable, unordered-or Mattias Engdegård
2019-10-09  8:59 ` Mattias Engdegård
2019-10-11 23:07 ` Paul Eggert [this message]
2019-10-12 10:47   ` bug#37659: Mattias Engdegård <mattiase <at> acm.org> Mattias Engdegård
2019-10-13 16:52     ` Paul Eggert
2019-10-13 19:48       ` Mattias Engdegård
2019-10-22 15:14       ` bug#37659: rx additions: anychar, unmatchable, unordered-or Mattias Engdegård
2019-10-22 15:27         ` Robert Pluim
2019-10-22 17:33         ` Paul Eggert
2019-10-23  9:15           ` Mattias Engdegård
2019-10-23 23:14             ` Paul Eggert
2019-10-24  1:56               ` Drew Adams
2019-10-24  9:09                 ` Mattias Engdegård
2019-10-24 14:24                   ` Drew Adams
2019-10-24  9:17                 ` Phil Sainty
2019-10-24 14:32                   ` Drew Adams
2019-10-24  8:58               ` Mattias Engdegård
2019-10-27 11:53                 ` Mattias Engdegård
2020-02-11 12:57           ` Mattias Engdegård
2020-02-11 15:43             ` Eli Zaretskii
2020-02-11 19:17               ` Mattias Engdegård
2020-02-12  0:52                 ` Paul Eggert
2020-02-12 11:22                   ` Mattias Engdegård
2020-02-13 18:38                     ` Mattias Engdegård
2020-02-13 18:50                       ` Paul Eggert
2020-02-13 19:16                         ` Mattias Engdegård
2020-02-13 19:30                           ` Eli Zaretskii
2020-02-13 22:23                             ` Mattias Engdegård
2020-02-14  7:45                               ` Eli Zaretskii
2020-02-14 16:15                                 ` Paul Eggert
2020-02-14 20:49                                   ` Mattias Engdegård
2020-03-01 10:09                                   ` Mattias Engdegård

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

  List information: https://www.gnu.org/software/emacs/

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

  git send-email \
    --in-reply-to=bfbec61a-873c-21be-f9eb-c26c0ad5f395@cs.ucla.edu \
    --to=eggert@cs.ucla.edu \
    --cc=37659@debbugs.gnu.org \
    --cc=mattiase@acm.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.savannah.gnu.org/cgit/emacs.git

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 read-only IMAP folder(s) and NNTP newsgroup(s).