* Enclosing text in a box
@ 2022-11-16 12:47 Heime
2022-11-16 13:07 ` Heime
2022-11-17 6:43 ` Jean Louis
0 siblings, 2 replies; 32+ messages in thread
From: Heime @ 2022-11-16 12:47 UTC (permalink / raw)
To: Heime via Users list for the GNU Emacs text editor
Would like to enclose some text in a box? The box has to automatically adjust its size
according to the size of the text.
(insert "╔══════╗\n")
(insert (concat "║" text "║\n" ))
(insert "╚══════╝" )
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 12:47 Enclosing text in a box Heime
@ 2022-11-16 13:07 ` Heime
2022-11-16 13:34 ` Alexis Roda
2022-11-17 6:43 ` Jean Louis
1 sibling, 1 reply; 32+ messages in thread
From: Heime @ 2022-11-16 13:07 UTC (permalink / raw)
To: Heime; +Cc: Heime via Users list for the GNU Emacs text editor
------- Original Message -------
On Wednesday, November 16th, 2022 at 12:47 PM, Heime <heimeborgia@protonmail.com> wrote:
> Would like to enclose some text in a box? The box has to automatically adjust its size
> according to the size of the text.
>
> (insert "╔══════╗\n")
> (insert (concat "║" text "║\n" ))
> (insert "╚══════╝" )
Is there a repeat character in elisp?
Then I could do
(repeat-string (length text) "═")
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 13:07 ` Heime
@ 2022-11-16 13:34 ` Alexis Roda
2022-11-16 13:58 ` Eli Zaretskii
0 siblings, 1 reply; 32+ messages in thread
From: Alexis Roda @ 2022-11-16 13:34 UTC (permalink / raw)
To: Heime; +Cc: Heime via Users list for the GNU Emacs text editor
You were almost there, (make-string (length text") ?=)
https://www.gnu.org/software/emacs/manual/html_node/elisp/Creating-Strings.html
Missatge de Heime <heimeborgia@protonmail.com> del dia dc., 16 de nov. 2022
a les 14:09:
>
> ------- Original Message -------
> On Wednesday, November 16th, 2022 at 12:47 PM, Heime <
> heimeborgia@protonmail.com> wrote:
>
>
> > Would like to enclose some text in a box? The box has to automatically
> adjust its size
> > according to the size of the text.
> >
> > (insert "╔══════╗\n")
> > (insert (concat "║" text "║\n" ))
> > (insert "╚══════╝" )
>
> Is there a repeat character in elisp?
>
> Then I could do
>
> (repeat-string (length text) "═")
>
>
>
>
>
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 13:34 ` Alexis Roda
@ 2022-11-16 13:58 ` Eli Zaretskii
2022-11-16 14:11 ` Yuri Khan
0 siblings, 1 reply; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-16 13:58 UTC (permalink / raw)
To: help-gnu-emacs
> From: Alexis Roda <alexis.roda.villalonga@gmail.com>
> Date: Wed, 16 Nov 2022 14:34:09 +0100
> Cc: Heime via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
>
> You were almost there, (make-string (length text") ?=)
Using 'length' to measure the width of text on display is not
reliable, because there are characters of different width. It is
better to use 'string-width' or 'string-pixel-width' instead.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 13:58 ` Eli Zaretskii
@ 2022-11-16 14:11 ` Yuri Khan
2022-11-16 14:20 ` Heime
2022-11-16 14:47 ` Eli Zaretskii
0 siblings, 2 replies; 32+ messages in thread
From: Yuri Khan @ 2022-11-16 14:11 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
On Wed, 16 Nov 2022 at 20:59, Eli Zaretskii <eliz@gnu.org> wrote:
> Using 'length' to measure the width of text on display is not
> reliable, because there are characters of different width. It is
> better to use 'string-width' or 'string-pixel-width' instead.
The next stumbling point is going to be “make-string does the wrong
thing when passed 17.237 as the count”, without an explanation as to
what the right thing would be. (I don’t know either.)
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:11 ` Yuri Khan
@ 2022-11-16 14:20 ` Heime
2022-11-16 14:47 ` Eli Zaretskii
1 sibling, 0 replies; 32+ messages in thread
From: Heime @ 2022-11-16 14:20 UTC (permalink / raw)
To: Yuri Khan; +Cc: Eli Zaretskii, help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 2:11 PM, Yuri Khan <yuri.v.khan@gmail.com> wrote:
> On Wed, 16 Nov 2022 at 20:59, Eli Zaretskii eliz@gnu.org wrote:
>
> > Using 'length' to measure the width of text on display is not
> > reliable, because there are characters of different width. It is
> > better to use 'string-width' or 'string-pixel-width' instead.
>
>
> The next stumbling point is going to be “make-string does the wrong
> thing when passed 17.237 as the count”, without an explanation as to
> what the right thing would be. (I don’t know either.)
Emacs should have the right amount of space to insert the printing entity.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:11 ` Yuri Khan
2022-11-16 14:20 ` Heime
@ 2022-11-16 14:47 ` Eli Zaretskii
2022-11-16 14:51 ` Heime
2022-11-16 14:55 ` Yuri Khan
1 sibling, 2 replies; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-16 14:47 UTC (permalink / raw)
To: help-gnu-emacs
> From: Yuri Khan <yuri.v.khan@gmail.com>
> Date: Wed, 16 Nov 2022 21:11:04 +0700
> Cc: help-gnu-emacs@gnu.org
>
> On Wed, 16 Nov 2022 at 20:59, Eli Zaretskii <eliz@gnu.org> wrote:
>
> > Using 'length' to measure the width of text on display is not
> > reliable, because there are characters of different width. It is
> > better to use 'string-width' or 'string-pixel-width' instead.
>
> The next stumbling point is going to be “make-string does the wrong
> thing when passed 17.237 as the count”, without an explanation as to
> what the right thing would be. (I don’t know either.)
Why would sane code call make-string with such an argument?
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:47 ` Eli Zaretskii
@ 2022-11-16 14:51 ` Heime
2022-11-16 14:55 ` Emanuel Berg
2022-11-16 16:44 ` Eli Zaretskii
2022-11-16 14:55 ` Yuri Khan
1 sibling, 2 replies; 32+ messages in thread
From: Heime @ 2022-11-16 14:51 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 2:47 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> > From: Yuri Khan yuri.v.khan@gmail.com
> > Date: Wed, 16 Nov 2022 21:11:04 +0700
> > Cc: help-gnu-emacs@gnu.org
> >
> > On Wed, 16 Nov 2022 at 20:59, Eli Zaretskii eliz@gnu.org wrote:
> >
> > > Using 'length' to measure the width of text on display is not
> > > reliable, because there are characters of different width. It is
> > > better to use 'string-width' or 'string-pixel-width' instead.
> >
> > The next stumbling point is going to be “make-string does the wrong
> > thing when passed 17.237 as the count”, without an explanation as to
> > what the right thing would be. (I don’t know either.)
>
>
> Why would sane code call make-string with such an argument?
The premise seems to be that "string-width" returns it. I would like to
have the ability to pass unicode characters.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:47 ` Eli Zaretskii
2022-11-16 14:51 ` Heime
@ 2022-11-16 14:55 ` Yuri Khan
2022-11-16 15:06 ` Yuri Khan
1 sibling, 1 reply; 32+ messages in thread
From: Yuri Khan @ 2022-11-16 14:55 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
On Wed, 16 Nov 2022 at 21:48, Eli Zaretskii <eliz@gnu.org> wrote:
> > > Using 'length' to measure the width of text on display is not
> > > reliable, because there are characters of different width. It is
> > > better to use 'string-width' or 'string-pixel-width' instead.
> >
> > The next stumbling point is going to be “make-string does the wrong
> > thing when passed 17.237 as the count”, without an explanation as to
> > what the right thing would be. (I don’t know either.)
>
> Why would sane code call make-string with such an argument?
My train of thought was:
* OP uses ‘length’ to measure the text, and ‘make-string’ to build a box.
* You point out that this fails for non-monospace fonts, and suggest
measuring with ‘string-width’ or ‘string-pixel-width’.
* OP tries to measure in pixels, realizes one has to divide by the
width of a box drawing character. The division result turns out
fractional.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:51 ` Heime
@ 2022-11-16 14:55 ` Emanuel Berg
2022-11-16 20:56 ` Emanuel Berg
2022-11-16 16:44 ` Eli Zaretskii
1 sibling, 1 reply; 32+ messages in thread
From: Emanuel Berg @ 2022-11-16 14:55 UTC (permalink / raw)
To: help-gnu-emacs
Heime wrote:
> The premise seems to be that "string-width" returns it.
> I would like to have the ability to pass unicode characters.
Didn't Jean do exactly this very recently on gmane.emacs.help ?
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:55 ` Yuri Khan
@ 2022-11-16 15:06 ` Yuri Khan
2022-11-16 16:12 ` tomas
0 siblings, 1 reply; 32+ messages in thread
From: Yuri Khan @ 2022-11-16 15:06 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
On Wed, 16 Nov 2022 at 21:55, Yuri Khan <yuri.v.khan@gmail.com> wrote:
> * OP uses ‘length’ to measure the text, and ‘make-string’ to build a box.
> * You point out that this fails for non-monospace fonts, and suggest
> measuring with ‘string-width’ or ‘string-pixel-width’.
> * OP tries to measure in pixels, realizes one has to divide by the
> width of a box drawing character. The division result turns out
> fractional.
A more-or-less complete solution would probably involve:
* Measuring pixel width of the enclosed text.
* Measuring pixel width of the box drawing character.
* Dividing one by the other, rounding up.
* Appending to the enclosed text a space with a display property
giving it a pixel width that pads the text to an integer number of box
drawing characters.
* (if the enclosed text is editable) Arrange for the above to be
re-done on change.
No, I’m not going to do a prototype.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 15:06 ` Yuri Khan
@ 2022-11-16 16:12 ` tomas
2022-11-16 16:43 ` Heime
0 siblings, 1 reply; 32+ messages in thread
From: tomas @ 2022-11-16 16:12 UTC (permalink / raw)
To: help-gnu-emacs
[-- Attachment #1: Type: text/plain, Size: 358 bytes --]
On Wed, Nov 16, 2022 at 10:06:22PM +0700, Yuri Khan wrote:
> On Wed, 16 Nov 2022 at 21:55, Yuri Khan <yuri.v.khan@gmail.com> wrote:
>
> > * OP uses ‘length’ to measure the text, and ‘make-string’ to build a box.
...or, perhaps, just use the :box face attribute. Whose location
in the docs is left as an exercise to the OP.
Cheers
--
t
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 16:12 ` tomas
@ 2022-11-16 16:43 ` Heime
0 siblings, 0 replies; 32+ messages in thread
From: Heime @ 2022-11-16 16:43 UTC (permalink / raw)
To: tomas; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 4:12 PM, <tomas@tuxteam.de> wrote:
> On Wed, Nov 16, 2022 at 10:06:22PM +0700, Yuri Khan wrote:
>
> > On Wed, 16 Nov 2022 at 21:55, Yuri Khan yuri.v.khan@gmail.com wrote:
> >
> > > * OP uses ‘length’ to measure the text, and ‘make-string’ to build a box.
>
>
> ...or, perhaps, just use the :box face attribute. Whose location
> in the docs is left as an exercise to the OP.
There are no examples how to use it exactly.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:51 ` Heime
2022-11-16 14:55 ` Emanuel Berg
@ 2022-11-16 16:44 ` Eli Zaretskii
2022-11-16 16:48 ` Heime
1 sibling, 1 reply; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-16 16:44 UTC (permalink / raw)
To: help-gnu-emacs
> Date: Wed, 16 Nov 2022 14:51:24 +0000
> From: Heime <heimeborgia@protonmail.com>
> Cc: help-gnu-emacs@gnu.org
>
> > > The next stumbling point is going to be “make-string does the wrong
> > > thing when passed 17.237 as the count”, without an explanation as to
> > > what the right thing would be. (I don’t know either.)
> >
> >
> > Why would sane code call make-string with such an argument?
>
> The premise seems to be that "string-width" returns it.
Obviously, sane code should round the value up, not use it literally.
> I would like to have the ability to pass unicode characters.
This has nothing to do with Unicode.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 16:44 ` Eli Zaretskii
@ 2022-11-16 16:48 ` Heime
2022-11-16 16:53 ` Heime
2022-11-16 19:20 ` Eli Zaretskii
0 siblings, 2 replies; 32+ messages in thread
From: Heime @ 2022-11-16 16:48 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 4:44 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> > Date: Wed, 16 Nov 2022 14:51:24 +0000
> > From: Heime heimeborgia@protonmail.com
> > Cc: help-gnu-emacs@gnu.org
> >
> > > > The next stumbling point is going to be “make-string does the wrong
> > > > thing when passed 17.237 as the count”, without an explanation as to
> > > > what the right thing would be. (I don’t know either.)
> > >
> > > Why would sane code call make-string with such an argument?
> >
> > The premise seems to be that "string-width" returns it.
>
>
> Obviously, sane code should round the value up, not use it literally.
>
> > I would like to have the ability to pass unicode characters.
>
>
> This has nothing to do with Unicode.
I do not know whether the unicode characters pose a problem with fractional sizes.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 16:48 ` Heime
@ 2022-11-16 16:53 ` Heime
2022-11-16 19:20 ` Eli Zaretskii
1 sibling, 0 replies; 32+ messages in thread
From: Heime @ 2022-11-16 16:53 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 4:48 PM, Heime <heimeborgia@protonmail.com> wrote:
> ------- Original Message -------
> On Wednesday, November 16th, 2022 at 4:44 PM, Eli Zaretskii eliz@gnu.org wrote:
>
>
>
> > > Date: Wed, 16 Nov 2022 14:51:24 +0000
> > > From: Heime heimeborgia@protonmail.com
> > > Cc: help-gnu-emacs@gnu.org
> > >
> > > > > The next stumbling point is going to be “make-string does the wrong
> > > > > thing when passed 17.237 as the count”, without an explanation as to
> > > > > what the right thing would be. (I don’t know either.)
> > > >
> > > > Why would sane code call make-string with such an argument?
> > >
> > > The premise seems to be that "string-width" returns it.
> >
> > Obviously, sane code should round the value up, not use it literally.
> >
> > > I would like to have the ability to pass unicode characters.
> >
> > This has nothing to do with Unicode.
>
>
> I do not know whether the unicode characters pose a problem with fractional sizes.
Would the problem only occur with "non alphanumeric" text?
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 16:48 ` Heime
2022-11-16 16:53 ` Heime
@ 2022-11-16 19:20 ` Eli Zaretskii
2022-11-16 19:35 ` Heime
1 sibling, 1 reply; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-16 19:20 UTC (permalink / raw)
To: help-gnu-emacs
> Date: Wed, 16 Nov 2022 16:48:07 +0000
> From: Heime <heimeborgia@protonmail.com>
> Cc: help-gnu-emacs@gnu.org
>
> > > I would like to have the ability to pass unicode characters.
> >
> >
> > This has nothing to do with Unicode.
>
> I do not know whether the unicode characters pose a problem with fractional sizes.
Any character can pose such problems. It depends on the font you are
using.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 19:20 ` Eli Zaretskii
@ 2022-11-16 19:35 ` Heime
2022-11-16 19:42 ` Emanuel Berg
2022-11-16 20:00 ` Eli Zaretskii
0 siblings, 2 replies; 32+ messages in thread
From: Heime @ 2022-11-16 19:35 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 7:20 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> > Date: Wed, 16 Nov 2022 16:48:07 +0000
> > From: Heime heimeborgia@protonmail.com
> > Cc: help-gnu-emacs@gnu.org
> >
> > > > I would like to have the ability to pass unicode characters.
> > >
> > > This has nothing to do with Unicode.
> >
> > I do not know whether the unicode characters pose a problem with fractional sizes.
>
>
> Any character can pose such problems. It depends on the font you are
> using.
So what are people to do? Basically it means that we cannot rely on "length" and
"string-width". Then the function are there for nothing. Asking users to handle
such conditions would be too hard to do repeatedly.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 19:35 ` Heime
@ 2022-11-16 19:42 ` Emanuel Berg
2022-11-16 21:01 ` Heime
2022-11-16 20:00 ` Eli Zaretskii
1 sibling, 1 reply; 32+ messages in thread
From: Emanuel Berg @ 2022-11-16 19:42 UTC (permalink / raw)
To: help-gnu-emacs
Heime wrote:
> So what are people to do? Basically it means that we cannot
> rely on "length" and "string-width". Then the function are
> there for nothing.
:)
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 19:35 ` Heime
2022-11-16 19:42 ` Emanuel Berg
@ 2022-11-16 20:00 ` Eli Zaretskii
2022-11-16 20:55 ` Emanuel Berg
2022-11-16 21:04 ` Emanuel Berg
1 sibling, 2 replies; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-16 20:00 UTC (permalink / raw)
To: help-gnu-emacs
> Date: Wed, 16 Nov 2022 19:35:17 +0000
> From: Heime <heimeborgia@protonmail.com>
> Cc: help-gnu-emacs@gnu.org
>
> > Any character can pose such problems. It depends on the font you are
> > using.
>
> So what are people to do?
I already advised what to do, in my original message in this thread.
> Basically it means that we cannot rely on "length" and
> "string-width".
No, it means don't use 'length' (because its purpose is not to measure
the display width). You _can_ use 'string-width', it will do a good
job in almost all cases. If you need 110% solution, use
'string-pixel-width'.
> Then the function are there for nothing.
How do you get to such extreme conclusions without even trying what
you were advised to do?
> Asking users to handle such conditions would be too hard to do
> repeatedly.
This is not userland, this is Emacs Lisp programming for display, and
yes, it is quite tricky if you want rock-solid solutions that work
with arbitrary characters and fonts.
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 20:00 ` Eli Zaretskii
@ 2022-11-16 20:55 ` Emanuel Berg
2022-11-18 14:48 ` Eli Zaretskii
2022-11-16 21:04 ` Emanuel Berg
1 sibling, 1 reply; 32+ messages in thread
From: Emanuel Berg @ 2022-11-16 20:55 UTC (permalink / raw)
To: help-gnu-emacs
Eli Zaretskii wrote:
>> Asking users to handle such conditions would be too hard to
>> do repeatedly.
>
> This is not userland, this is Emacs Lisp programming for
> display, and yes, it is quite tricky
(defun sign (label)
(interactive "sLabel: ")
(let*((vertical "|")
(horizontal ?-)
(corner "+")
(mid (format "%s %s %s" vertical label vertical))
(len (length mid))
(top (format "%s%s%s" corner (make-string (- len 2) horizontal) corner))
(sgn (format "%s\n%s\n%s\n" top mid top)) )
(insert sgn) ))
;; M-x sign This is not a bluff RET
;;
;; +---------------------+
;; | This is not a bluff |
;; +---------------------+
https://dataswamp.org/~incal/emacs-init/string.el
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 14:55 ` Emanuel Berg
@ 2022-11-16 20:56 ` Emanuel Berg
0 siblings, 0 replies; 32+ messages in thread
From: Emanuel Berg @ 2022-11-16 20:56 UTC (permalink / raw)
To: help-gnu-emacs
>> The premise seems to be that "string-width" returns it.
>> I would like to have the ability to pass
>> unicode characters.
>
> Didn't Jean do exactly this very recently on
> gmane.emacs.help ?
+-------------------------------------------+
| This message is for display purposes only |
+-------------------------------------------+
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 19:42 ` Emanuel Berg
@ 2022-11-16 21:01 ` Heime
0 siblings, 0 replies; 32+ messages in thread
From: Heime @ 2022-11-16 21:01 UTC (permalink / raw)
To: Emanuel Berg; +Cc: help-gnu-emacs
------- Original Message -------
On Wednesday, November 16th, 2022 at 7:42 PM, Emanuel Berg <incal@dataswamp.org> wrote:
> Heime wrote:
>
> > So what are people to do? Basically it means that we cannot
> > rely on "length" and "string-width". Then the function are
> > there for nothing.
>
>
> :)
>
Perhaps
(ceiling (string-width phallus))
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 20:00 ` Eli Zaretskii
2022-11-16 20:55 ` Emanuel Berg
@ 2022-11-16 21:04 ` Emanuel Berg
1 sibling, 0 replies; 32+ messages in thread
From: Emanuel Berg @ 2022-11-16 21:04 UTC (permalink / raw)
To: help-gnu-emacs
Eli Zaretskii wrote:
>> Asking users to handle such conditions would be too hard [...]
>
> [...] this is Emacs Lisp programming
You better believe it - it's like at the very epicentrum
of things!
Only the very, very best can do it, and sometimes seven days
a week.
(defun sign (label &optional no-insert)
(interactive "sLabel: \nP")
(let*((vertical "|")
(horizontal ?-)
(corner "+")
(mid (format "%s %s %s" vertical label vertical))
(len (length mid))
(top (format "%s%s%s" corner (make-string (- len 2) horizontal) corner))
(sgn (format "%s\n%s\n%s\n" top mid top)) )
(if no-insert
sgn
(insert sgn) )))
;; +---------------------+
;; | This is not a bluff |
;; +---------------------+
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 12:47 Enclosing text in a box Heime
2022-11-16 13:07 ` Heime
@ 2022-11-17 6:43 ` Jean Louis
2022-11-17 6:57 ` Emanuel Berg
2022-11-18 16:20 ` [External] : " Drew Adams
1 sibling, 2 replies; 32+ messages in thread
From: Jean Louis @ 2022-11-17 6:43 UTC (permalink / raw)
To: Heime; +Cc: Heime via Users list for the GNU Emacs text editor
* Heime <heimeborgia@protonmail.com> [2022-11-16 15:49]:
>
> Would like to enclose some text in a box? The box has to automatically adjust its size
> according to the size of the text.
>
> (insert "╔══════╗\n")
> (insert (concat "║" text "║\n" ))
> (insert "╚══════╝" )
I did not read the rest of answers to your question.
Package is here:
Emacs Lisp: rcd-box.el package for table drawings:
https://hyperscope.link/7/3/9/8/1/Emacs-Lisp-rcd-box-el-package-for-table-drawings-73981.html
Basic function:
(rcd-box-table '(("My text"))) ⇒ "
╔═════════╗
║ My text ║
╚═════════╝
"
If you wish to make it simpler:
(defun rcd-box-text (text)
(rcd-box-table (list (list text))))
(rcd-box-text "Hello") ⇒ "
╔═══════╗
║ Hello ║
╚═══════╝
"
;; Available box drawing types: DOUBLE, HEAVY, LIGHT
That means you can do:
(rcd-box-table '(("My text")) nil "center" "double") ⇒ "
╔═════════╗
║ My text ║
╚═════════╝
"
(rcd-box-table '(("My text")) nil "center" "heavy") ⇒ "
┏━━━━━━━━━┓
┃ My text ┃
┗━━━━━━━━━┛
"
(rcd-box-table '(("My text")) nil "center" "light") ⇒ "
┌─────────┐
│ My text │
└─────────┘
"
and then you can add it to simpler function like:
(defun rcd-box-text (text &optional type)
(rcd-box-table (list (list text)) nil "center" type))
(rcd-box-text "And now good bye to all" "heavy") ⇒ "
┏━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ And now good bye to all ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━┛
"
--
Jean
Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns
In support of Richard M. Stallman
https://stallmansupport.org/
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-17 6:43 ` Jean Louis
@ 2022-11-17 6:57 ` Emanuel Berg
2022-11-18 19:11 ` Jean Louis
2022-11-18 16:20 ` [External] : " Drew Adams
1 sibling, 1 reply; 32+ messages in thread
From: Emanuel Berg @ 2022-11-17 6:57 UTC (permalink / raw)
To: help-gnu-emacs
Jean Louis wrote:
> ┏━━━━━━━━━━━━━━━━━━━━━━━━━┓
> ┃ And now good bye to all ┃
> ┗━━━━━━━━━━━━━━━━━━━━━━━━━┛
Can you use your program to make a neat table out of
this, perhaps?
It looks neat below but I post-processed it. I mean,
e-manually ...
;;; -*- lexical-binding: t -*-
;;
;; this file
;; https//dataswamp.org/~incal/emacs-init/war.el
(require 'math)
(defun war ()
(let*((ukr 603628)
(pre 42000)
(smo 119000)
(ret 74443)
(most (+ pre smo))
(now (- most ret)) )
(insert (format "Ukraine area %d (km2)\n" ukr)
(format "Occupied pre-2022 %d %s\n" pre (percent pre ukr t))
(format "Additionally occupied in 2022 %d %s\n" smo (percent smo ukr t))
(format "Biggest area occupied %d %s\n" most (percent most ukr t))
(format "Retaken during counteroffensive %d %s\n" ret (percent ret most t))
(format "Occupied area 2022-11-17 %d %s\n" now (percent now ukr t)) )))
;; Ukraine area (km2) 603 628
;; Occupied pre-2022 42 000 7.0%
;; Additionally occupied in 2022 119 000 19.7%
;; Biggest area occupied 161 000 26.7%
;; Retaken during counteroffensive 74 443 46.2%
;; Occupied area 2022-11-17 86 557 14.3%
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-16 20:55 ` Emanuel Berg
@ 2022-11-18 14:48 ` Eli Zaretskii
2022-11-18 15:10 ` tomas
2022-11-18 19:18 ` Emanuel Berg
0 siblings, 2 replies; 32+ messages in thread
From: Eli Zaretskii @ 2022-11-18 14:48 UTC (permalink / raw)
To: help-gnu-emacs
> From: Emanuel Berg <incal@dataswamp.org>
> Date: Wed, 16 Nov 2022 21:55:05 +0100
>
> Eli Zaretskii wrote:
>
> >> Asking users to handle such conditions would be too hard to
> >> do repeatedly.
> >
> > This is not userland, this is Emacs Lisp programming for
> > display, and yes, it is quite tricky
>
> (defun sign (label)
> (interactive "sLabel: ")
> (let*((vertical "|")
> (horizontal ?-)
> (corner "+")
> (mid (format "%s %s %s" vertical label vertical))
> (len (length mid))
> (top (format "%s%s%s" corner (make-string (- len 2) horizontal) corner))
> (sgn (format "%s\n%s\n%s\n" top mid top)) )
> (insert sgn) ))
>
> ;; M-x sign This is not a bluff RET
> ;;
> ;; +---------------------+
> ;; | This is not a bluff |
> ;; +---------------------+
And now try with "fullwidth" characters, like the below:
M-x sign RET This is not a bluff RET
This yields:
+---------------------+
| This is not a bluff |
+---------------------+
Hmm...
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-18 14:48 ` Eli Zaretskii
@ 2022-11-18 15:10 ` tomas
2022-11-18 19:18 ` Emanuel Berg
1 sibling, 0 replies; 32+ messages in thread
From: tomas @ 2022-11-18 15:10 UTC (permalink / raw)
To: help-gnu-emacs
[-- Attachment #1: Type: text/plain, Size: 286 bytes --]
On Fri, Nov 18, 2022 at 04:48:50PM +0200, Eli Zaretskii wrote:
[...]
> This yields:
>
> +---------------------+
> | This is not a bluff |
> +---------------------+
>
> Hmm...
Eeek! It overflows on vim, too!
;-)
Cheers
--
t
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^ permalink raw reply [flat|nested] 32+ messages in thread
* RE: [External] : Re: Enclosing text in a box
2022-11-17 6:43 ` Jean Louis
2022-11-17 6:57 ` Emanuel Berg
@ 2022-11-18 16:20 ` Drew Adams
1 sibling, 0 replies; 32+ messages in thread
From: Drew Adams @ 2022-11-18 16:20 UTC (permalink / raw)
To: Jean Louis, Heime; +Cc: 'Help-Gnu-Emacs (help-gnu-emacs@gnu.org)'
[-- Attachment #1: Type: text/plain, Size: 93 bytes --]
FWIW: related (not quite the same purposes etc.):
https://github.com/davep/boxquote.el
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^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-17 6:57 ` Emanuel Berg
@ 2022-11-18 19:11 ` Jean Louis
2022-11-21 12:53 ` Emanuel Berg
0 siblings, 1 reply; 32+ messages in thread
From: Jean Louis @ 2022-11-18 19:11 UTC (permalink / raw)
To: help-gnu-emacs
* Emanuel Berg <incal@dataswamp.org> [2022-11-18 16:58]:
> Jean Louis wrote:
>
> > ┏━━━━━━━━━━━━━━━━━━━━━━━━━┓
> > ┃ And now good bye to all ┃
> > ┗━━━━━━━━━━━━━━━━━━━━━━━━━┛
>
> Can you use your program to make a neat table out of
> this, perhaps?
I did not put enough parameters to support for example spaces.
--
Jean
Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns
In support of Richard M. Stallman
https://stallmansupport.org/
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-18 14:48 ` Eli Zaretskii
2022-11-18 15:10 ` tomas
@ 2022-11-18 19:18 ` Emanuel Berg
1 sibling, 0 replies; 32+ messages in thread
From: Emanuel Berg @ 2022-11-18 19:18 UTC (permalink / raw)
To: help-gnu-emacs
Eli Zaretskii wrote:
>> ;; M-x sign This is not a bluff RET
>> ;;
>> ;; +---------------------+
>> ;; | This is not a bluff |
>> ;; +---------------------+
>
> And now try with "fullwidth" characters, like the below:
>
> M-x sign RET This is not a bluff RET
That's it on the other hand. The bluff.
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
* Re: Enclosing text in a box
2022-11-18 19:11 ` Jean Louis
@ 2022-11-21 12:53 ` Emanuel Berg
0 siblings, 0 replies; 32+ messages in thread
From: Emanuel Berg @ 2022-11-21 12:53 UTC (permalink / raw)
To: help-gnu-emacs
Jean Louis wrote:
>>> ┏━━━━━━━━━━━━━━━━━━━━━━━━━┓
>>> ┃ And now good bye to all ┃
>>> ┗━━━━━━━━━━━━━━━━━━━━━━━━━┛
>>
>> Can you use your program to make a neat table out of
>> this, perhaps?
>
> I did not put enough parameters to support for
> example spaces.
There more you code, the more there is to code ...
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 32+ messages in thread
end of thread, other threads:[~2022-11-21 12:53 UTC | newest]
Thread overview: 32+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-11-16 12:47 Enclosing text in a box Heime
2022-11-16 13:07 ` Heime
2022-11-16 13:34 ` Alexis Roda
2022-11-16 13:58 ` Eli Zaretskii
2022-11-16 14:11 ` Yuri Khan
2022-11-16 14:20 ` Heime
2022-11-16 14:47 ` Eli Zaretskii
2022-11-16 14:51 ` Heime
2022-11-16 14:55 ` Emanuel Berg
2022-11-16 20:56 ` Emanuel Berg
2022-11-16 16:44 ` Eli Zaretskii
2022-11-16 16:48 ` Heime
2022-11-16 16:53 ` Heime
2022-11-16 19:20 ` Eli Zaretskii
2022-11-16 19:35 ` Heime
2022-11-16 19:42 ` Emanuel Berg
2022-11-16 21:01 ` Heime
2022-11-16 20:00 ` Eli Zaretskii
2022-11-16 20:55 ` Emanuel Berg
2022-11-18 14:48 ` Eli Zaretskii
2022-11-18 15:10 ` tomas
2022-11-18 19:18 ` Emanuel Berg
2022-11-16 21:04 ` Emanuel Berg
2022-11-16 14:55 ` Yuri Khan
2022-11-16 15:06 ` Yuri Khan
2022-11-16 16:12 ` tomas
2022-11-16 16:43 ` Heime
2022-11-17 6:43 ` Jean Louis
2022-11-17 6:57 ` Emanuel Berg
2022-11-18 19:11 ` Jean Louis
2022-11-21 12:53 ` Emanuel Berg
2022-11-18 16:20 ` [External] : " Drew Adams
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