Subject: bug#61726: [PATCH] Eglot: Support positionEncoding capability

From: Eli Zaretskii <[email-masked]>
Date: Sat, 25 Feb 2023 18:26:01 +0200

> From: Augusto Stoffel <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Sat, 25 Feb 2023 15:14:06 +0100
> 
> On Sat, 25 Feb 2023 at 15:47, Eli Zaretskii wrote:
> 
> >> > Can you please humor me and implement eglot-bytewise-column like that?
> >> 
> >> I would be glad to do that, but unfortunately I'd have to ask your
> >> advice as to how to make the corresponding adaptation of
> >> eglot-move-to-bytewise-column.
>          ^^^^^^^

Sorry.  Here:

  (defun eglot-move-to-bytewise-column (column)
    "Move to COLUMN as computed using the LSP `utf-8' criterion."
    (let* ((bol (line-beginning-position))
	   (goal-byte (+ (position-bytes bol) column))
	   (eol (line-end-position)))
      (goto-char bol)
      (while (and (< (position-bytes (point)) goal-byte)
		  (< (point) eol))
	(if (>= (char-after) #x3fff80)  ; raw bytes take 2 bytes in the buffer
	    (setq goal-byte (1+ goal-byte)))
	(forward-char 1))))