From 0e2c29d2e3a3bbc9c3ed47a3cea09bda8f211b08 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 19 Nov 2021 11:05:29 +0530
Subject: [PATCH] PDF Output: Fix the option to break long words at the ends of
 lines causing boxes to be rendered at the end fo the line on macOS with some
 fonts. Fixes #1951467 [Private
 bug](https://bugs.launchpad.net/calibre/+bug/1951467)

---
 resources/pdf-preprint.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/resources/pdf-preprint.js b/resources/pdf-preprint.js
index a78aec270c..7a2c72de56 100644
--- a/resources/pdf-preprint.js
+++ b/resources/pdf-preprint.js
@@ -31,7 +31,15 @@
         if (is_block) avoid_page_breaks_inside(img);
         else if (img.parentNode && img.parentNode.childElementCount === 1) avoid_page_breaks_inside(img.parentNode);
     }
-
+    // Change the hyphenate character to a plain ASCII minus (U+002d) the default
+    // is U+2010 but that does not render with the default Times font on macOS as of Monterey
+    // and Qt 15.5 See https://bugs.launchpad.net/bugs/1951467 and can be easily reproduced
+    // by converting a plain text file with the --pdf-hyphenate option
+    for (const elem of document.getElementsByTagName('*')) {
+        if (elem.style) {
+            elem.style.setProperty('-webkit-hyphenate-character', '"-"', 'important');
+        }
+    }
 })();