* Colourising a label prints it twice
@ 2024-07-12 23:09 Heime
2024-07-12 23:26 ` Stephen Berman
0 siblings, 1 reply; 4+ messages in thread
From: Heime @ 2024-07-12 23:09 UTC (permalink / raw)
To: Heime via Users list for the GNU Emacs text editor
I have the following function to colourise the label, but I get OFF printed twice.
(defun label-select (label)
"Color the part of LABEL after [-]."
(if (string-match "\\[\\-\\] \\(.*\\)" label)
(let ( (bt (match-string 0 label))
(lb (match-string 1 label)) )
(concat bt (propertize lb 'face '(:foreground "red"))))
label))
(insert (format " %s \n" (label-select "[-] OFF ")))
(insert (format " %s \n" (label-select "[-] OFF ")))
(insert (format " %s \n" (label-select " [-] OFF ")))
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Colourising a label prints it twice
2024-07-12 23:09 Colourising a label prints it twice Heime
@ 2024-07-12 23:26 ` Stephen Berman
2024-07-12 23:55 ` Heime
0 siblings, 1 reply; 4+ messages in thread
From: Stephen Berman @ 2024-07-12 23:26 UTC (permalink / raw)
To: Heime; +Cc: Heime via Users list for the GNU Emacs text editor
On Fri, 12 Jul 2024 23:09:28 +0000 Heime <heimeborgia@protonmail.com> wrote:
> I have the following function to colourise the label, but I get OFF printed twice.
>
> (defun label-select (label)
> "Color the part of LABEL after [-]."
>
> (if (string-match "\\[\\-\\] \\(.*\\)" label)
>
> (let ( (bt (match-string 0 label))
> (lb (match-string 1 label)) )
> (concat bt (propertize lb 'face '(:foreground "red"))))
>
> label))
>
> (insert (format " %s \n" (label-select "[-] OFF ")))
> (insert (format " %s \n" (label-select "[-] OFF ")))
> (insert (format " %s \n" (label-select " [-] OFF ")))
`bt' is the entire string passed by LABEL, but IIUC it should just be
the string "[-] ", so put that in a group:
(defun label-select (label)
"Color the part of LABEL after [-]."
(if (string-match "\\(\\[\\-\\] \\)\\(.*\\)" label)
(let ( (bt (match-string 1 label))
(lb (match-string 2 label)) )
(concat bt (propertize lb 'face '(:foreground "red"))))
label))
Steve Berman
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Colourising a label prints it twice
2024-07-12 23:26 ` Stephen Berman
@ 2024-07-12 23:55 ` Heime
2024-07-13 9:05 ` Stephen Berman
0 siblings, 1 reply; 4+ messages in thread
From: Heime @ 2024-07-12 23:55 UTC (permalink / raw)
To: Stephen Berman; +Cc: Heime via Users list for the GNU Emacs text editor
On Saturday, July 13th, 2024 at 11:26 AM, Stephen Berman <stephen.berman@gmx.net> wrote:
> On Fri, 12 Jul 2024 23:09:28 +0000 Heime heimeborgia@protonmail.com wrote:
>
> > I have the following function to colourise the label, but I get OFF printed twice.
> >
> > (defun label-select (label)
> > "Color the part of LABEL after [-]."
> >
> > (if (string-match "\\[\\-\\] \\(.*\\)" label)
> >
> > (let ( (bt (match-string 0 label))
> > (lb (match-string 1 label)) )
> > (concat bt (propertize lb 'face '(:foreground "red"))))
> >
> > label))
> >
> > (insert (format " %s \n" (label-select "[-] OFF ")))
> > (insert (format " %s \n" (label-select "[-] OFF ")))
> > (insert (format " %s \n" (label-select " [-] OFF ")))
>
>
> `bt' is the entire string passed by LABEL, but IIUC it should just be
> the string "[-] ", so put that in a group:
>
> (defun label-select (label)
> "Color the part of LABEL after [-]."
>
> (if (string-match "\\(\\[\\-\\] \\)\\(.*\\)" label)
>
> (let ( (bt (match-string 1 label))
> (lb (match-string 2 label)) )
> (concat bt (propertize lb 'face '(:foreground "red"))))
>
> label))
>
> Steve Berman
Regarding grouping, I want to replicate the original string with respect
to any whitespaces. Does the grouping outline respect the original whitespace ?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Colourising a label prints it twice
2024-07-12 23:55 ` Heime
@ 2024-07-13 9:05 ` Stephen Berman
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Berman @ 2024-07-13 9:05 UTC (permalink / raw)
To: Heime; +Cc: Heime via Users list for the GNU Emacs text editor
On Fri, 12 Jul 2024 23:55:49 +0000 Heime <heimeborgia@protonmail.com> wrote:
> On Saturday, July 13th, 2024 at 11:26 AM, Stephen Berman
> <stephen.berman@gmx.net> wrote:
>
>> On Fri, 12 Jul 2024 23:09:28 +0000 Heime heimeborgia@protonmail.com wrote:
>>
>> > I have the following function to colourise the label, but I get OFF
>> > printed twice.
>> >
>> > (defun label-select (label)
>> > "Color the part of LABEL after [-]."
>> >
>> > (if (string-match "\\[\\-\\] \\(.*\\)" label)
>> >
>> > (let ( (bt (match-string 0 label))
>> > (lb (match-string 1 label)) )
>> > (concat bt (propertize lb 'face '(:foreground "red"))))
>> >
>> > label))
>> >
>> > (insert (format " %s \n" (label-select "[-] OFF ")))
>> > (insert (format " %s \n" (label-select "[-] OFF ")))
>> > (insert (format " %s \n" (label-select " [-] OFF ")))
>>
>>
>> `bt' is the entire string passed by LABEL, but IIUC it should just be
>> the string "[-] ", so put that in a group:
>>
>> (defun label-select (label)
>> "Color the part of LABEL after [-]."
>>
>> (if (string-match "\\(\\[\\-\\] \\)\\(.*\\)" label)
>>
>> (let ( (bt (match-string 1 label))
>> (lb (match-string 2 label)) )
>> (concat bt (propertize lb 'face '(:foreground "red"))))
>>
>> label))
>>
>> Steve Berman
>
> Regarding grouping, I want to replicate the original string with respect
> to any whitespaces. Does the grouping outline respect the original whitespace ?
The regexp I used is fairly specific to the examples you gave (though I
overlooked that your third example has a space before "[-]"); to allow
arbitrary whitespace in the first group before and after "[-]" you can
use "\\s-*":
(defun label-select (label)
"Color the part of LABEL after [-]."
(if (string-match "\\(\\s-*\\[\\-\\]\\s-*\\)\\(.*\\)" label)
(let ( (bt (match-string 1 label))
(lb (match-string 2 label)) )
(concat bt (propertize lb 'face '(:foreground "red"))))
label))
Steve Berman
^ permalink raw reply [flat|nested] 4+ messages in thread
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2024-07-12 23:09 Colourising a label prints it twice Heime
2024-07-12 23:26 ` Stephen Berman
2024-07-12 23:55 ` Heime
2024-07-13 9:05 ` Stephen Berman
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