From: Michael Heerdegen <michael_heerdegen@web.de>
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: Mon, 27 Sep 2021 00:54:11 +0200 [thread overview]
Message-ID: <878rzj7xt8.fsf@web.de> (raw)
In-Reply-To: <CAGP6POL8M08NG_GfCrmWRLBhFvFa5tKCGCHE-qtj46sVp=uAag@mail.gmail.com> (Hongyi Zhao's message of "Wed, 22 Sep 2021 22:28:28 +0800")
Hongyi Zhao <hongyi.zhao@gmail.com> writes:
> 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
You might want to give Calc a try for such things. It doesn't perfectly
handle the editing part though since it doesn't know about rectangle
commands (AFAICT - at least for insertion).
So here is how I would do it:
- mark the rectangular region spanning the numbers
- `C-x * r': this will grab the number column as a matrix and pop up
Calc
- `1 RET +': will add 1 to all entries
You now have the result as a matrix. What you have to do now manually
using conventional rectangle commands is to kill the original numbers
from the buffer (they are already marked, so `C-x r k'), and then kill
and yank the numbers as rectangle from the Calc buffer.
Calc also allows to add numbers in a row or column in any buffer in a
similarly easy way. The Calc tutorial has some examples doing such
things.
Michael.
next prev parent reply other threads:[~2021-09-26 22:54 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
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 [this message]
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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