From 534bf7ae11cdfbee802afcbd85af188cc2fd3f77 Mon Sep 17 00:00:00 2001
From: Jens Kutilek <webmail@kutilek.de>
Date: Thu, 30 Jan 2025 09:00:50 +0100
Subject: [PATCH] Set glyph width to 0 if the glyph class is "mark"

---
 src/fontloader/runtime/fontloader-reference.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/fontloader/runtime/fontloader-reference.lua b/src/fontloader/runtime/fontloader-reference.lua
index 8cff7fb9..62da7e86 100644
--- a/src/fontloader/runtime/fontloader-reference.lua
+++ b/src/fontloader/runtime/fontloader-reference.lua
@@ -18933,6 +18933,7 @@ function readers.gdef(f,fontdata,specification)
      local class=classes[readushort(f)]
      if class=="mark" then
       marks[index]=true
+      glyphs[index].width=0
      end
      glyphs[index].class=class
     end
@@ -18947,6 +18948,7 @@ function readers.gdef(f,fontdata,specification)
        glyphs[index].class=class
        if class=="mark" then
         marks[index]=true
+        glyphs[index].width=0
        end
       end
      end