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Help with unicode diacritics
From: |
Stephen Eglen |
Subject: |
Help with unicode diacritics |
Date: |
Mon, 28 Dec 2020 07:07:36 +0000 |
User-agent: |
mu4e 1.4.13; emacs 27.1 |
Hello,
can anyone out here help me with debugging a Unicode font issue? In
particular, I'd like to use the COMBINING OVERLINE (x0305) code to make
"x" with a bar above it (i.e. x bar, to represent the mean of x).
I'm on manjaro arch, with Emacs 27.1. I wrote the following snippet to
demonstrate the problem. See the line of a character a with various
diacritics under the call to (code) to demonstrate the problem. Out of
the three fonts I tested, Monaco does the best, but ideally I'd like to
use JuliaMono. If I view this same file in xfce4-terminal, using
JuliaMono, all the diacritics appear fine. This makes me suspect Emacs.
On the page: https://damtp.cam.ac.uk/user/sje30/temp/accents.png is what
I see (using EXWM, with emacs rendering on left and xfce-terminal on the
right).
How might I debug further?
The JuliaMono font was installed using the arch package
https://github.com/cormullion/juliamono
Alternatively, does anyone recommend a monospace font with good Unicode
performance in Emacs?
Thanks for any pointers, Stephen
(defun code ()
"Insert a range of unicode diactrics into buffer."
(dotimes (i 20)
(insert "a")
(insert (+ 769 i))
(insert " ")
))
;; x0301 is code point (+ (* 3 256) 1) => 769
;; (code)
;; á â ã ā a̅ ă ȧ ä ả å a̋ ǎ a̍ a̎ ȁ a̐ ȃ a̒ a̓ a̔
;; Monaco renders ok except a̐
;; (set-face-attribute 'default nil :font "Monaco")
;;
;; quite a few missing
;; (set-face-attribute 'default nil :font "JuliaMono")
;;
;; quite a few missing
;; (set-face-attribute 'default nil :font "Roboto Mono")
(emacs-version)
"GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.22, cairo
version 1.17.3)
of 2020-08-28"