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Re: Partial wdired (edit just filename at the point)
From: |
Arthur Miller |
Subject: |
Re: Partial wdired (edit just filename at the point) |
Date: |
Fri, 19 Mar 2021 12:15:57 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>> As you can guess from the previous comment, we should loop over BEG...END
>>> to process all the lines involved.
>> Can you elaborate more on this please?
>
> Because that's how `before-change-functions` is defined. We can try and
> argue that in the specific case of wdired buffer the multiline case will
> never happen (presumably because of all the `read-only` annotations) or
> that it will always be "on the same line as point", but I'm pretty sure
> we'll end up finding corner cases where these are not true, so I find it
> easier to slap a simple while loop around the code and stop worrying
> about corner cases.
Ok, thanks for the explanation.
> [ As a general rule, I find it easier to write code if I just rely on
> the few things which I know to be true, rather than having to think of
> a set of unbounded possible cases. Here, what we know to be true is
> that the upcoming changes will not affect anything outside BEG...END
> (at least not until `before-change-functions` are called again). ]
>
>> This is what I got for each char I typed in:
>
> Try something like
>
> M-: (subst-char-in-region (point-min) (point-min) ?. ?-) RET
Indeed, I was only concentrated on "interactive" editing, didn't thought
so much of other elisp functions.
Jere is a sketch with region, however, I am not able to get
editing permissions correctly. I am not really sure what is going on.
Maybe you or someone else see what is wrong there. Otherwise editing
names and symlinks works fine. I hope the general "setup" to loop
through the region is acceptable. I have attached my working file and as
a patch so take a look at whichever is easier.
partial-wdired.el
Description: Text document
0001-Lazy-wdired-preprocessing.patch
Description: Text Data
- Re: Partial wdired (edit just filename at the point), (continued)
- Re: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/17
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/17
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/17
- Re: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/17
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/18
- Re: Partial wdired (edit just filename at the point), Thierry Volpiatto, 2021/03/18
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/18
- Re: Partial wdired (edit just filename at the point), Thierry Volpiatto, 2021/03/18
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/18
- Re: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/18
- Re: Partial wdired (edit just filename at the point),
Arthur Miller <=
- Re: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/19
- Sv: Partial wdired (edit just filename at the point), arthur miller, 2021/03/19
- Re: Sv: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/19
- Sv: Sv: Partial wdired (edit just filename at the point), arthur miller, 2021/03/20
- Re: Partial wdired (edit just filename at the point), Tomas Hlavaty, 2021/03/21
- Re: Partial wdired (edit just filename at the point), tomas, 2021/03/22
- Re: Partial wdired (edit just filename at the point), Arthur Miller, 2021/03/22
- Re: Partial wdired (edit just filename at the point), tomas, 2021/03/22
- Re: Partial wdired (edit just filename at the point), Stefan Monnier, 2021/03/22
- Re: Partial wdired (edit just filename at the point), Tomas Hlavaty, 2021/03/22