GNU bug report logs - #54188
Crash when eval-ing font test elisp code

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From: Vordoo <vordoo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 54188 <at> debbugs.gnu.org
Subject: bug#54188: Crash when eval-ing font test elisp code
Date: Mon, 28 Feb 2022 23:44:47 +0200

On 2/28/22 14:19, Eli Zaretskii wrote:
> If you can establish which font causes this, it could allow us to
> decide whether and how to deal with this issue. Thanks. 
Tested on Emacs: 27.2 | 28.0.60 | 29.0.50
Crashes with fonts: terminal, lucida, charter, Caladings CLM.

For clarity replaced (font-family-list) with an actual font list:
(require 'cl-lib)
(require 'cl-extra)
(let ((str "The quick brown fox jumps over the lazy dog 
´`''\"\"1lI|¦!Ø0Oo{[()]}.,:; ")
      (font-families (cl-remove-duplicates
              (sort '("Standard Symbols PS" "URW Gothic" "Roboto 
Condensed" "Droid Sans") ;; <-- WORKS
                   ;; '("terminal")                              ;; <-- 
CRASH
                   ;; '("lucida" )                            ;;<-- CRASH
                   ;; '("Caladings CLM")                    ;; <-- CRASH
                   ;; '("charter")                            ;; <-- CRASH

               (lambda(x y) (string< (upcase x) (upcase y))))
              :test 'cl-equalp)))
  (dolist (ff font-families)
    (insert
     (propertize str 'font-lock-face `(:family ,ff))               ff "\n"
     (propertize str 'font-lock-face `(:family ,ff :slant italic)) ff 
"\n")))

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