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bug#2887: Suggestions for simple.el
From: |
Stefan Monnier |
Subject: |
bug#2887: Suggestions for simple.el |
Date: |
Sun, 05 Apr 2009 22:14:23 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.92 (gnu/linux) |
> The Emacs manual and the documentation of `kill-word' and
> `backward-kill-word' could mention that some users may prefer binding
> C-backspace to `backward-delete-word' and C-delete to `delete-word'.
The Emacs manual is already "too large" to contain all the info we want
to put in it, so mentioning such things is unlikely.
But it's probably a good idea to add those commands to misc.el.
Then the EmacsWiki can mention them.
> My commands that call pos-at-*-of-line work faster than I can blink my
> eyes, but I understand your concern.
Try them on 200MB buffers.
> To optimize the speed the functions would probably need to be
> implemented in C code, but that's beyond my programming
> capabilities.
The core loop is in goto-line and is already written in C.
> Still, if I'm not mistaken, Emacs Lisp programmers would
> have to use something just as expensive to perform this task, so
> pos-at-*-of-line would save them some typing and thinking.
The point is to force them to use goto-line explicitly, so as to
hopefully make the cost more obvious.
> It's a common task to delete everything between the point and another
> location. Zapping is best if that location contains a somewhat rare
> character, usually some kind of symbol or parenthesis. In my experience
> the character itself should usually not be deleted as well.
I tend to use C-s for that (as well as for movement). But I understand
that other people have other habits.
> Yes, it would be a nice improvement to upgrade the
> `delete-trailing-whitespace' command so it counts cleaned lines.
Feel free to provide a patch for it (tho, since we're in the pretest,
there's no hurry: it won't be installed right now).
> Files with mixed Unix/Dos line endings are sometimes created when people
> using different OS's work together on a project. Many programs choke on
> input files that contain mixed Unix/Dos line endings, often without
> helpful error messages.
I understand the problem, yes. I just don't know it enough to
understand which kind of solution is more handy. The few times I've had
such a thing, I just did M-% C-q C-m RET RET !. For such rare
occurrences, anything more specialized would be useless because
I wouldn't remember it. Obviously, if it happens commonly to you,
you'll want another solution.
> If the Emacs maintainers decide to make `delete-trailing-whitespace' also
> delete trailing ^M in mixed line-ending files, it would make me (and
> presumably many other users) happy, but it might create a
> backwards-compatibility issue.
It might, but I'm not sure it'd be such a big deal. The docstring
explicitly mentions that a form-feed is not considered as whitespace by
this function, so that might be taken to mean that "every other
whitespace-like chars" (such as C-m) would be considered as whitespace.
> These functions are used in a wide variety of situations (text, code,
> data), making guesswork practically hopeless. I use `delete-indentation'
> and `delete-indentation-nospace' a lot, and I'm not sure which one I use
> more frequently.
What bindings do you use?
>> This said, I think those new commands, unbound to any key, shouldn't
>> be placed in simple.el (which is preloaded) but into some other file.
>> I'm tempted to say "misc.el", where we could stuff any number of
>> "commands that users might like, but for which we couldn't come up
>> with a good key-binding".
> I would slip them into simple.el, since they load very fast and rhyme with
> what's already there.
As mentioned, simple.el is preloaded, so anything we add to it increases
the size of Emacs for everyone, whether they use it or not.
> Allow me to propose the following bindings that are
> undefined in Emacs 22.3.1:
There's a good reason why they're undefined: most of those keys can't be
pressed under a tty.
Stefan
- bug#2887: Suggestions for simple.el, Arni Magnusson, 2009/04/04
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/04
- bug#2887: Suggestions for simple.el, Arni Magnusson, 2009/04/04
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/04
- bug#2887: Suggestions for simple.el, Leo, 2009/04/05
- bug#2887: Suggestions for simple.el, Arni Magnusson, 2009/04/05
- bug#2887: Suggestions for simple.el, Lennart Borgman, 2009/04/05
- bug#2887: Suggestions for simple.el,
Stefan Monnier <=
- bug#2887: Suggestions for simple.el, Drew Adams, 2009/04/05
- bug#2887: Suggestions for simple.el, Arni Magnusson, 2009/04/06
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/07
- bug#2887: Suggestions for simple.el, Drew Adams, 2009/04/07
- bug#2887: Suggestions for simple.el, Chong Yidong, 2009/04/07
- bug#2887: Suggestions for simple.el, Drew Adams, 2009/04/07
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/07
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/07
- bug#2887: Suggestions for simple.el, Arni Magnusson, 2009/04/17
- bug#2887: Suggestions for simple.el, Stefan Monnier, 2009/04/18