[latex3-commits] [git/LaTeX3-latex3-luaotfload] dev: Support printing negative characters (b02c538)

[Marcel Fabian Krüger]

Repository : https://github.com/latex3/luaotfload
On branch  : dev
Link       : https://github.com/latex3/luaotfload/commit/b02c538a1431bdc3863bff5a00832579b1822ede

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commit b02c538a1431bdc3863bff5a00832579b1822ede
Author: Marcel Fabian Krüger <tex at 2krueger.de>
Date:   Thu Jun 10 16:43:34 2021 +0200

    Support printing negative characters


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b02c538a1431bdc3863bff5a00832579b1822ede
 src/luaotfload-harf-plug.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/luaotfload-harf-plug.lua b/src/luaotfload-harf-plug.lua
index 9070952..5d76a69 100644
--- a/src/luaotfload-harf-plug.lua
+++ b/src/luaotfload-harf-plug.lua
@@ -1134,6 +1134,8 @@ local function get_glyph_info(n)
   local c = getchar(n)
   if c == 0 then
     return '^^@'
+  elseif c < 0 then -- These are left and right boundaries in ligature lists
+    return ''
   elseif c < 0x110000 then
     return utfchar(c)
   else