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* bug#51226: 29.0.50; `align' doc string is unclear
@ 2021-10-15 10:04 Lars Ingebrigtsen
  2021-10-15 11:00 ` Eli Zaretskii
  0 siblings, 1 reply; 3+ messages in thread
From: Lars Ingebrigtsen @ 2021-10-15 10:04 UTC (permalink / raw)
  To: 51226


`align' doesn't mention the prefix arg in the doc string, but in certain
modes, different alignment rules are picked based on what prefix you
give to the command.  For instance, text mode:

    ;; With a numeric prefix argument, or C-u, space delimited text
    ;; tables will be aligned.
    (text-column
     (regexp   . "\\(^\\|\\S-\\)\\([ \t]+\\)\\(\\S-\\|$\\)")
     (group    . 2)
     (modes    . align-text-modes)
     (repeat   . t)
     (run-if   . ,(lambda ()
                    (and current-prefix-arg
                         (not (eq '- current-prefix-arg))))))

    ;; With a negative prefix argument, lists of dollar figures will
    ;; be aligned.
    (text-dollar-figure
     (regexp   . "\\$?\\(\\s-+[0-9]+\\)\\.")
     (modes    . align-text-modes)
     (justify  . t)
     (run-if   . ,(lambda ()
                    (eq '- current-prefix-arg))))

It's also not clear why `M-x align' in text modes do nothing -- you
have to give it a prefix to make it do anything.




-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no






^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#51226: 29.0.50; `align' doc string is unclear
  2021-10-15 10:04 bug#51226: 29.0.50; `align' doc string is unclear Lars Ingebrigtsen
@ 2021-10-15 11:00 ` Eli Zaretskii
  2021-10-19 20:39   ` Lars Ingebrigtsen
  0 siblings, 1 reply; 3+ messages in thread
From: Eli Zaretskii @ 2021-10-15 11:00 UTC (permalink / raw)
  To: Lars Ingebrigtsen, John Wiegley; +Cc: 51226

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Fri, 15 Oct 2021 12:04:01 +0200
> 
> 
> `align' doesn't mention the prefix arg in the doc string, but in certain
> modes, different alignment rules are picked based on what prefix you
> give to the command.  For instance, text mode:
> 
>     ;; With a numeric prefix argument, or C-u, space delimited text
>     ;; tables will be aligned.
>     (text-column
>      (regexp   . "\\(^\\|\\S-\\)\\([ \t]+\\)\\(\\S-\\|$\\)")
>      (group    . 2)
>      (modes    . align-text-modes)
>      (repeat   . t)
>      (run-if   . ,(lambda ()
>                     (and current-prefix-arg
>                          (not (eq '- current-prefix-arg))))))
> 
>     ;; With a negative prefix argument, lists of dollar figures will
>     ;; be aligned.
>     (text-dollar-figure
>      (regexp   . "\\$?\\(\\s-+[0-9]+\\)\\.")
>      (modes    . align-text-modes)
>      (justify  . t)
>      (run-if   . ,(lambda ()
>                     (eq '- current-prefix-arg))))
> 
> It's also not clear why `M-x align' in text modes do nothing -- you
> have to give it a prefix to make it do anything.

John, could you help us out here by explaining this stuff?





^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#51226: 29.0.50; `align' doc string is unclear
  2021-10-15 11:00 ` Eli Zaretskii
@ 2021-10-19 20:39   ` Lars Ingebrigtsen
  0 siblings, 0 replies; 3+ messages in thread
From: Lars Ingebrigtsen @ 2021-10-19 20:39 UTC (permalink / raw)
  To: Eli Zaretskii; +Cc: John Wiegley, 51226

Eli Zaretskii <eliz@gnu.org> writes:

>> It's also not clear why `M-x align' in text modes do nothing -- you
>> have to give it a prefix to make it do anything.
>
> John, could you help us out here by explaining this stuff?

I've now clarified this in the doc string (i.e., that `C-u' has an
effect), and I've also made `M-x align' (without a prefix) actually do
something in text-mode.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no





^ permalink raw reply	[flat|nested] 3+ messages in thread

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2021-10-15 10:04 bug#51226: 29.0.50; `align' doc string is unclear Lars Ingebrigtsen
2021-10-15 11:00 ` Eli Zaretskii
2021-10-19 20:39   ` Lars Ingebrigtsen

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