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From: Eli Zaretskii <eliz@gnu.org>
To: Robert Pluim <rpluim@gmail.com>
Cc: 63731@debbugs.gnu.org, steven@stebalien.com
Subject: bug#63731: [PATCH] Support Emoji Variation Sequence 16 (FE0F) where appropriate
Date: Fri, 26 May 2023 11:46:05 +0300	[thread overview]
Message-ID: <83ilcflbua.fsf@gnu.org> (raw)
In-Reply-To: <87v8gfmqyt.fsf@gmail.com> (message from Robert Pluim on Fri, 26 May 2023 10:34:02 +0200)

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Steven Allen <steven@stebalien.com>,  63731@debbugs.gnu.org
> Date: Fri, 26 May 2023 10:34:02 +0200
> 
> Ugh. The following fixes it for me:
> 
> diff --git a/lisp/composite.el b/lisp/composite.el
> index fb8b76114f4..af86d1436d3 100644
> --- a/lisp/composite.el
> +++ b/lisp/composite.el
> @@ -756,7 +756,7 @@ compose-gstring-for-dotted-circle
>  ;; Allow for bootstrapping without uni-*.el.
>  (when unicode-category-table
>    (let ((elt `([,(purecopy "\\c.\\c^+") 1 compose-gstring-for-graphic]
> -	       [nil 0 compose-gstring-for-graphic])))
> +	       )))

This is unacceptable, AFAIU.  We cannot unsupported (or change) the
correct display of mark characters, can we?

> Although the following is less invasive:
> 
> diff --git a/lisp/composite.el b/lisp/composite.el
> index fb8b76114f4..333428f008a 100644
> --- a/lisp/composite.el
> +++ b/lisp/composite.el
> @@ -762,6 +762,11 @@ compose-gstring-for-dotted-circle
>  	 (if (memq val '(Mn Mc Me))
>  	     (set-char-table-range composition-function-table key elt)))
>       unicode-category-table))
> +  ;; for Emoji presentation selector
> +  (set-char-table-range
> +   composition-function-table
> +   #xFE0F
> +    `([,(purecopy "\\c.\ufe0f") 1 compose-gstring-for-graphic]))
>    ;; for dotted-circle
>    (aset composition-function-table #x25CC
>  	`([,(purecopy ".\\c^") 0 compose-gstring-for-dotted-circle]))

Can you please explain why the current setup doesn't work in this
case, even though "C-u C-x =" says the composition was done?  And how
the above patch fixes that?

> Didnʼt we conclude that composition had some issues with multiple
> entries for the same codepoint if there was a mix for forward and
> backward looking regexp?

Not sure I understand to what does this allude.  What mix of forward
and backward looking regexp do you see?





  reply	other threads:[~2023-05-26  8:46 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-26  3:18 bug#63731: [PATCH] Support Emoji Variation Sequence 16 (FE0F) where appropriate Steven Allen
2023-05-26  6:41 ` Eli Zaretskii
2023-05-26  8:34   ` Robert Pluim
2023-05-26  8:46     ` Eli Zaretskii [this message]
2023-05-26 11:14       ` Robert Pluim
2023-05-26 12:06         ` Eli Zaretskii
2023-05-26 14:02           ` Robert Pluim
2023-05-26 14:55             ` Eli Zaretskii
2023-05-26 15:25               ` Robert Pluim
2023-05-26 15:52                 ` Eli Zaretskii
2023-05-26 16:24                   ` Robert Pluim
2023-05-26 17:27                     ` Eli Zaretskii
2023-05-26 17:35                       ` Robert Pluim
2023-05-26 18:05                         ` Eli Zaretskii
2023-05-28 11:43                           ` Robert Pluim
2023-05-28 12:44                             ` Eli Zaretskii
2023-05-26 17:43                       ` Eli Zaretskii
2023-05-28 10:29                         ` Robert Pluim
2023-05-28 12:37                           ` Eli Zaretskii
2023-05-28 11:57                       ` Robert Pluim
2023-05-28 12:47                         ` Eli Zaretskii
2023-05-29 10:44                           ` Robert Pluim
2023-05-29 13:58                             ` Eli Zaretskii
2023-05-29 14:43                               ` Robert Pluim
2023-05-29 14:55                                 ` Eli Zaretskii
2023-05-29 16:13                                   ` Robert Pluim
2023-05-29 17:18                                     ` Eli Zaretskii
2023-05-30  7:25                                       ` Robert Pluim
2023-05-30 12:10                                         ` Eli Zaretskii
2023-05-30 13:30                                           ` Robert Pluim
2023-05-30 16:32                                             ` Eli Zaretskii
2023-05-31 16:11                                               ` Robert Pluim
2023-05-31 16:18                                                 ` Eli Zaretskii
2023-06-01 12:43                                                   ` Eli Zaretskii
2023-06-01 13:30                                                     ` Robert Pluim
2023-06-01 16:10                                                       ` Eli Zaretskii
2023-06-01 16:34                                                         ` Robert Pluim
2023-06-02  8:15                                                           ` Robert Pluim
2023-06-02 12:06                                                             ` Eli Zaretskii
2023-06-02 12:25                                                               ` Robert Pluim
2023-06-02 12:58                                                                 ` Eli Zaretskii
2023-06-02 13:58                                                                   ` Robert Pluim
2023-06-03  5:36                                                                     ` Eli Zaretskii
2023-06-05 13:08                                                                       ` Robert Pluim
2023-06-05 13:12                                                                         ` Eli Zaretskii
2023-06-05 13:31                                                                           ` Eli Zaretskii
2023-06-05 14:06                                                                             ` Robert Pluim
2023-06-05 13:36                                                                           ` Robert Pluim
2023-06-05 13:47                                                                             ` Eli Zaretskii
2023-06-05 14:27                                                                               ` Robert Pluim
2023-06-05 15:35                                                                                 ` Eli Zaretskii
2023-06-05 15:57                                                                                   ` Robert Pluim
2023-06-05 16:20                                                                                     ` Robert Pluim
2023-06-05 16:41                                                                                       ` Eli Zaretskii
2023-06-06  7:24                                                                                         ` Robert Pluim
2023-06-05 16:39                                                                                     ` Eli Zaretskii
2023-06-06  7:28                                                                                       ` Robert Pluim
2023-06-06 11:53                                                                                         ` Eli Zaretskii
2023-05-26 15:06   ` Steven Allen
2023-05-26 15:29     ` Robert Pluim
2023-05-26 16:03       ` Steven Allen

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