From: Stephen Berman <stephen.berman@gmx.net>
To: Hongyi Zhao <hongyi.zhao@gmail.com>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: Emacs: adding 1 to every number made of 2 digits inside a marked region.
Date: Thu, 23 Sep 2021 10:07:34 +0200 [thread overview]
Message-ID: <87ee9fsojd.fsf@rub.de> (raw)
In-Reply-To: <CAGP6POLG1ORj2yYT5_=4hmA-2xTZ-5=rKkL5f8KTzv937AUkhg@mail.gmail.com> (Hongyi Zhao's message of "Thu, 23 Sep 2021 15:54:19 +0800")
On Thu, 23 Sep 2021 15:54:19 +0800 Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
> 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.
In your first screenshot it looks like point in *scratch* is after the
number 30 when you evaluate the while-sexp. Make sure point is before
34 and then it should work.
Steve Berman
next prev parent reply other threads:[~2021-09-23 8:07 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 14:28 Emacs: adding 1 to every number made of 2 digits inside a marked region Hongyi Zhao
2021-09-22 19:50 ` Stephen Berman
2021-09-22 21:04 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 0:23 ` Hongyi Zhao
2021-09-23 7:24 ` Stephen Berman
2021-09-23 7:54 ` Hongyi Zhao
2021-09-23 8:07 ` Stephen Berman [this message]
2021-09-23 9:00 ` Hongyi Zhao
2021-09-23 10:07 ` Stephen Berman
2021-09-23 10:13 ` Hongyi Zhao
2021-09-23 10:23 ` Stephen Berman
2021-09-23 12:58 ` Hongyi Zhao
2021-09-23 13:29 ` Stephen Berman
2021-09-23 14:25 ` Hongyi Zhao
2021-09-22 20:38 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 0:42 ` Hongyi Zhao
2021-09-23 0:46 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 0:56 ` Hongyi Zhao
2021-09-23 2:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 2:12 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 0:57 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 8:02 ` Hongyi Zhao
2021-09-23 8:37 ` Andreas Röhler
2021-09-23 9:05 ` Hongyi Zhao
2021-09-23 9:58 ` Hongyi Zhao
2021-09-23 10:10 ` Gregory Heytings
2021-09-23 10:17 ` Hongyi Zhao
2021-09-23 13:08 ` Gregory Heytings
2021-09-23 11:59 ` Andreas Röhler
2021-09-23 13:14 ` Hongyi Zhao
2021-09-23 13:51 ` Andreas Röhler
2021-09-23 14:23 ` Hongyi Zhao
2021-09-23 9:26 ` Gregory Heytings
2021-09-23 9:53 ` Hongyi Zhao
2021-09-23 10:02 ` Gregory Heytings
2021-09-23 14:13 ` [External] : " Drew Adams
2021-09-23 23:50 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-24 0:23 ` Drew Adams
2021-09-24 2:34 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-24 3:01 ` Drew Adams
2021-09-24 7:25 ` Gregory Heytings
2021-09-24 7:32 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-23 11:50 ` Andreas Röhler
2021-09-26 22:54 ` Michael Heerdegen
2021-09-26 23:50 ` Arthur Miller
2021-09-27 1:02 ` Arthur Miller
2021-09-27 1:22 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-27 5:57 ` Hongyi Zhao
2021-09-28 1:32 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-27 10:59 ` Arthur Miller
2021-09-28 1:34 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-28 1:51 ` Arthur Miller
2021-09-27 1:03 ` Arthur Miller
2021-09-27 14:08 ` Arthur Miller
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