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Re: [External] : Re: missing a character / font in agenda?

From: Ihor Radchenko
Subject: Re: [External] : Re: missing a character / font in agenda?
Date: Wed, 13 Jul 2022 07:31:20 +0800

Daniel Ortmann <daniel.ortmann@oracle.com> writes:

> Ihor,
> What are your thoughts?
> On 7/12/22 15:03, Juan Manuel Macías wrote:
>> Juan Manuel Macías writes:
>>> The most reasonable thing would be to use a more
>>> common symbol. But I'm still intrigued by the origin of that symbol...
>> It seems that the culprit is in line 1592 of org-agenda.el
>> I think this should be considered a bug, since the glyph used (LEFTWARDS
>> TRIANGLE-HEADED ARROW / #2b60) is not present in most fonts.

The offending commit is 998a0aacd from Stefan.
The commit is supposed to fall back to ASCII symbol if the Unicode
variant is not available, but apparently the check failed for some

(defcustom org-agenda-current-time-string
  (if (and (display-graphic-p)
           (char-displayable-p ?⭠)
           (char-displayable-p ?─))
      "⭠ now ───────────────────────────────────────────────"
    "now - - - - - - - - - - - - - - - - - - - - - - - - -")
  "The string for the current time marker in the agenda."
  :group 'org-agenda-time-grid
  :version "29.1"
  :type 'string)

Stefan, do you have any idea what can go wrong here?

The only thing I can think about is warning in the char-displayable-p

>> On a multi-font display, the test is only whether there is an
>> appropriate font from the selected frame's fontset to display
>> CHAR's charset in general.  Since fonts may be specified on a
>> per-character basis, this may not be accurate.


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