From 06b138f1e7eeb67f2b9539a6c38a5aed94a9fed6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcel=20Fabian=20Kr=C3=BCger?= <zauguin@gmail.com>
Date: Mon, 15 Jun 2020 07:01:40 +0200
Subject: [PATCH] Less engine bug workarounds

---
 luametalatex-init.lua | 18 +-----------------
 luametaplain.ini      |  3 ---
 2 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/luametalatex-init.lua b/luametalatex-init.lua
index a094390..a24a2ec 100644
--- a/luametalatex-init.lua
+++ b/luametalatex-init.lua
@@ -79,28 +79,12 @@ do
   end
 end
 callback_register('read_data_file', function(name) error[[TODO]]return kpse.find_file(name, 'tex', true) end)
-local input_pattern do
-  local hex = lpeg.R('09', 'af')
-  local hexx = hex * hex
-  local tonumber = tonumber
-  local char = utf8.char
-  local sub = string.sub
-  local char = lpeg.Cg('^^' * (
-        ('^^' * ('^^' * hexx)^-1 * hexx)^-1 * hexx/function(s)
-          local cp = tonumber(sub(s, #s/2), 16)
-          return cp == 0 and '^^@' or char(cp)
-        end
-      -- + lpeg.R'\0\63' / function(s) return char(s:byte()+64) end
-      -- + lpeg.R'\63\127' / function(s) return char(s:byte()-64) end
-    )) + 1
-  input_pattern = lpeg.Cs(char^0)
-end
 callback_register('open_data_file', function(name)
   local f = io.open(name)
   return setmetatable({
     reader = function()
       local line = f:read()
-      return line and input_pattern:match(line)
+      return line
     end,
     close = function()error[[1]] return f:close() end,
   }, {
diff --git a/luametaplain.ini b/luametaplain.ini
index b189cb4..07f3795 100644
--- a/luametaplain.ini
+++ b/luametaplain.ini
@@ -15,9 +15,6 @@
 \global\def\eTeXrevision{.2}
 \endgroup
 \input load-unicode-data.tex
-\showthe\mathcode`\1
 \input etex.src
-\showthe\mathcode`\1
 \input luametalatex-baseregisters
-\showthe\mathcode`\1
 \dump