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Re: Emacs: adding 1 to every number made of 2 digits inside a marked reg
From: |
Hongyi Zhao |
Subject: |
Re: Emacs: adding 1 to every number made of 2 digits inside a marked region. |
Date: |
Thu, 23 Sep 2021 15:54:19 +0800 |
On Thu, Sep 23, 2021 at 3:24 PM Stephen Berman <stephen.berman@gmx.net> wrote:
>
> On Thu, 23 Sep 2021 08:23:26 +0800 Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
>
> > On Thu, Sep 23, 2021 at 3:50 AM Stephen Berman <stephen.berman@gmx.net>
> > wrote:
> >>
> >> On Wed, 22 Sep 2021 22:28:28 +0800 Hongyi Zhao <hongyi.zhao@gmail.com>
> >> wrote:
> >>
> >> > Today, I stumbled on this interesting discussion here [1]:
> >> >
> >> > --------------------
> >> > Imagine I've got the following in a text file opened under Emacs:
> >> >
> >> > some 34
> >> > word 30
> >> > another 38
> >> > thing 59
> >> > to 39
> >> > say 10
> >> > here 47
> >> >
> >> > and I want to turn into this, adding 1 to every number made of 2 digits:
> >> >
> >> > some 35
> >> > word 31
> >> > another 39
> >> > thing 60
> >> > to 40
> >> > say 11
> >> > here 48
> >> > --------------------
> [...]
> > This one does nothing:
> >
> > (while (re-search-forward "\\<[0-9][0-9]\\>" nil t) (let ((x
> > (match-string 0))) (delete-backward-char 2) (insert (format "%d" (1+
> > (string-to-number x))))))
>
> It works for me. How exactly did you use it?
Mark set the following in scratch buffer:
some 34
word 30
M-: (while (re-search-forward "[[:digit:]]\\{2\\}" nil t) (let ((x
(match-string 0))) (delete-backward-char 2) (insert (format "%d" (1+
(string-to-number x)))))) RET
Please see the screenshot of the running results on my machine in the
attachment.
HZ
001.png
Description: PNG image
002.png
Description: PNG image
- Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/22
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/22
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Emanuel Berg, 2021/09/22
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/22
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region.,
Hongyi Zhao <=
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Stephen Berman, 2021/09/23
- Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Hongyi Zhao, 2021/09/23
Re: Emacs: adding 1 to every number made of 2 digits inside a marked region., Emanuel Berg, 2021/09/22