From 6fd9e351fad8a6d4df2d2841a29da7fa99806463 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20P=C3=A9gouri=C3=A9-Gonnard?= <mpg@elzevir.fr>
Date: Thu, 11 Mar 2010 15:53:06 +0100
Subject: Start working on attr.

---
 Changes             |  3 +++
 TODO                | 16 ++++++++++------
 luatexbase-attr.dtx | 50 ++++++++++++++++++++++++--------------------------
 3 files changed, 37 insertions(+), 32 deletions(-)

diff --git a/Changes b/Changes
index cd5cce7..e1be3a1 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
                     Changes in the luatexbase package/bundle
 
+[on-going]
+    luatexbase-attrs
+        - newly allocated attributes are now unset
 
 2010/01/21
     luatexbase-regs 0.1
diff --git a/TODO b/TODO
index 718448b..1c8d40e 100644
--- a/TODO
+++ b/TODO
@@ -1,25 +1,29 @@
 general
 -------
 
-- change lua module names
-- change TeX macros prefixes
+- change prefix for internal TeX macros
 - check for lua name conflicts ('module' used in mods)
 - check for macros starting with \luatex
 - write test files
 - reload check, declaration, luatex test
+- handle catcodes for Plain (more comprensive defenses to be added later)
 - import/update doc
-- fix Makefile: test files are source, not runfiles
-- make tests cleaner: \begingroup\expandafter\ETC.
-- handle catcodes for Plain
-- import/write doc
+- make TeX tests cleaner: \begingroup\expandafter\ETC.
 
 
 Later
 =====
 
+- change lua module name(s) (luatexbase or luatexbase.regs etc)
+
 regs
 ----
 
 - Should the various allocation macros set something in a Lua table, or should
   we just wait for it to be implemented in LuaTeX? (The \*blk macros would be
 rather tricky in this respect, but are they really used?)
+
+attr
+---
+
+- don't write in the tex table!
diff --git a/luatexbase-attr.dtx b/luatexbase-attr.dtx
index fe68a3b..8f68efc 100644
--- a/luatexbase-attr.dtx
+++ b/luatexbase-attr.dtx
@@ -144,23 +144,22 @@ and the derived files
 %    the other |\new*| macros, to $65536$ attributes can be allocated.
 %
 %    \begin{macrocode}
-\newcount\luatexattdefcounter
-\luatexattdefcounter = 1
+\newcount\lltxb@attribute@alloc
+\lltxb@attribute@alloc\m@ne
 \def\newluatexattribute#1{%
-  \ifnum\luatexattdefcounter<65535\relax %
-    \global\advance\luatexattdefcounter by 1\relax %
-    \allocationnumber\luatexattdefcounter %
-    \ifluatex %
-      \global\luatexattributedef#1=\allocationnumber %
-    \fi %
+  \ifnum\lltxb@attribute@alloc<65535\relax
+    \global\advance\lltxb@attribute@alloc\@ne
+    \allocationnumber\lltxb@attribute@alloc
+    \ifluatex
+      \global\luatexattributedef#1=\allocationnumber
+    \fi
     \wlog{\string#1=\string\luatexattribute\the\allocationnumber}%
-    \luadirect{%
-      luatextra.attributedef_from_tex([[\noexpand#1]],
-      '\number\allocationnumber')}%
-  \else %
+    \begingroup\escapechar\m@ne \expandafter\endgroup
+    \directlua{luatextra.attributedef_from_tex(
+      '\luatexluaescapestring{\string#1}', '\number\allocationnumber')}%
+  \else
     \errmessage{No room for a new \string\attribute}%
-  \fi %
-}
+  \fi}
 %    \end{macrocode}
 %
 %    Two convenient macros, one to set an attribute (basically just a
@@ -170,15 +169,14 @@ and the derived files
 %
 %    \begin{macrocode}
 \def\setluatexattribute#1#2{%
-  #1=\numexpr#2\relax %
+  #1=\numexpr#2\relax
 }
 \def\unsetluatexattribute#1{%
-  \ifnum\luatexversion<37\relax %
-    #1=-1\relax %
-  \else %
-    #1=-"7FFFFFFF\relax %
-  \fi %
-}
+  \ifnum\luatexversion<37\relax
+    #1=-1\relax
+  \else
+    #1=-"7FFFFFFF\relax
+  \fi}
 %    \end{macrocode}
 %
 %    \begin{macrocode}
@@ -208,11 +206,11 @@ and the derived files
 %    can simply call |tex.attributenumber[myattribute]|.
 %
 %    \begin{macrocode}
-luatextra.attributes = {}
-tex.attributenumber = luatextra.attributes
-function luatextra.attributedef_from_tex(name, number)
-    truename = name:gsub('[\\ ]', '')
-    luatextra.attributes[truename] = tonumber(number)
+module('luatextra', package.seeall)
+attributes = {}
+tex.attributenumber = attributes
+function attributedef_from_tex(name, number)
+    attributes[name] = tonumber(number)
 end
 %    \end{macrocode}
 %
-- 
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