From ac4c2a64fc7883ad9c32f12d532fc8f0fc6f14a8 Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg42.2a@gmail.com>
Date: Mon, 20 May 2013 13:40:27 +0200
Subject: fix adapted letterspacing

---
 luaotfload-extralibs.lua   | 6 +++++-
 luaotfload-letterspace.lua | 5 +++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/luaotfload-extralibs.lua b/luaotfload-extralibs.lua
index ddf3694..84819f4 100644
--- a/luaotfload-extralibs.lua
+++ b/luaotfload-extralibs.lua
@@ -51,12 +51,16 @@ local kernfont           = typesetters.kernfont
 nodes              = nodes or { } --- should be present with luaotfload
 local bothways     = function (t) return table.swapped (t, t) end
 
-nodes.kerncodes = bothways({
+local kerncodes = bothways({
   [0] = "fontkern",
   [1] = "userkern",
   [2] = "accentkern",
 })
 
+kerncodes.kerning = kerncodes.fontkern --- idiosyncrasy
+
+nodes.kerncodes = kerncodes
+
 nodes.skipcodes = bothways({
   [  0] = "userskip",
   [  1] = "lineskip",
diff --git a/luaotfload-letterspace.lua b/luaotfload-letterspace.lua
index 8566c06..8711646 100644
--- a/luaotfload-letterspace.lua
+++ b/luaotfload-letterspace.lua
@@ -90,7 +90,6 @@ kerncharacters = function (head)
   local kernfactors   = kernfactors
 
   while start do
-    local attr = start[attribute]
     local id = start.id
     if id == glyph_code then
 
@@ -163,7 +162,9 @@ kerncharacters = function (head)
           -- nothing
 
         elseif pid == kern_code then
-          if prev.subtype == kerning_code or prev[a_fontkern] then
+          if prev.subtype == kerning_code   --- context does this by means of an
+          or prev.subtype == userkern_code  --- attribute; we may need a test
+          then
             if keeptogether and prev.prev.id == glyph_code and keeptogether(prev.prev,start) then
               -- keep
             else
-- 
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