luatexbase update (27may10)

git-svn-id: svn://tug.org/texlive/trunk@18560 c570f23f-e606-0410-a88d-b1316a301751

9 files changed, 350 insertions, 39 deletions

diff --git a/Master/texmf-dist/source/luatex/luatexbase/Makefile b/Master/texmf-dist/source/luatex/luatexbase/Makefile
index 4f018590786..8c82909d79f 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/Makefile
+++ b/Master/texmf-dist/source/luatex/luatexbase/Makefile
@@ -21,8 +21,10 @@ UNPACKED_MODUTILS = luatexbase-modutils.sty modutils.lua test-modutils.lua \
 				test-modutils-plain.tex test-modutils-latex.tex
 UNPACKED_COMPAT = luatexbase-compat.sty \
 				test-compat-plain.tex test-compat-latex.tex
+UNPACKED_CORE = luatexbase.sty
 UNPACKED = $(UNPACKED_MCB) $(UNPACKED_REGS) $(UNPACKED_ATTR) $(UNPACKED_CCTB) \
-		   $(UNPACKED_LOADER) $(UNPACKED_MODUTILS) $(UNPACKED_COMPAT)
+		   $(UNPACKED_LOADER) $(UNPACKED_MODUTILS) $(UNPACKED_COMPAT) \
+		   $(UNPACKED_CORE)
 COMPILED = $(DOC)
 GENERATED = $(COMPILED) $(UNPACKED)
 SOURCE = $(DTX) $(DTXSTY) README TODO Changes Makefile
@@ -101,6 +103,9 @@ $(UNPACKED_MODUTILS): luatexbase-modutils.dtx
 $(UNPACKED_COMPAT): luatexbase-compat.dtx
 	$(DO_TEX)
 
+$(UNPACKED_CORE): luatexbase.dtx
+	$(DO_TEX)
+
 check-regs: $(UNPACKED_REGS)
 	luatex --interaction=batchmode test-regs-plain.tex >/dev/null
 	lualatex --interaction=batchmode test-regs-latex.tex >/dev/null
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-attr.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-attr.dtx
index cf310d06570..5847daec422 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-attr.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-attr.dtx
@@ -114,7 +114,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \pk{luatexbase-attr} package}
-% \date{v0.2 2010-05-12}
+% \date{v0.2a 2010-05-27}
 % \author{%
 %   Manuel P\'egouri\'e-Gonnard \\ \email{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \email{elie.roux@telecom-bretagne.eu}}
@@ -124,17 +124,20 @@ See source file '\inFileName' for details.
 % \begin{abstract}
 % In addition to the registers existing in \tex and \etex, \luatex introduces
 % a new concept: attributes. This package takes care of attribute allocation
-% just like Plain TeX and LaTeX do for other registers.
+% just like Plain TeX and LaTeX do for other registers, and also provides a
+% Lua interface.
 % \end{abstract}
 %
 % \tableofcontents
 %
 % \section{Documentation}
 %
+% \subsection{\tex interface}
+%
 % The main macro defined here is |\newluatexattribute|. It behaves in the same
 % way as |\newcount|. There are also two helper macros: |\setluatexattibute|
 % sets an attribute's value (locally, but you can use |\global| in front of
-% it). |\unsetluatexattribute| unsets an atribute by giving it a special
+% it). |\unsetluatexattribute| unsets an attribute by giving it a special
 % value, depending on \luatex's version; you should always use this macro
 % in order to be sure the correct special value for your version of \luatex is
 % used.
@@ -143,6 +146,8 @@ See source file '\inFileName' for details.
 % allocate an attribute the way you can locally allocate a counter using
 % \file{etex.sty}'s |\loccount|, so no corresponding macro is defined.
 %
+% \subsection{Lua interface}
+%
 % The various Lua functions for manipulating attributes use a number to
 % designate the attribute. Hence, package writers need a way to know the
 % number of the attribute associated to |\fooattr| assuming it was defined
@@ -159,6 +164,16 @@ See source file '\inFileName' for details.
 % |luatexbase.attributes.foobar| (mind the absence of backslash here) at any
 % time.
 %
+% Also, two Lua functions are provided that are analogous to the above \tex
+% macros (actually, the macros are wrappers around the functions):
+% |luatexbase.new_attributes|\parg{name} allocates a new attribute, without
+% defining a corresponding \tex control sequence (only an entry in
+% |luatexbase.attributes| is created. It usually returns the number of the
+% allocated attribute. If room is missing, it raises an error, unless the
+% second argument (optional) is not false, in which case it returns -1.
+%
+% |luatexbase.unset_attribute|\parg{name} unsets an existing attribute.
+%
 %    \section{Implementation}
 %
 %    \subsection{\tex package}
@@ -223,7 +238,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-attr}[2010/05/12 v0.2 Attributes allocation for LuaTeX]
+\x{luatexbase-attr}[2010/05/27 v0.2a Attributes allocation for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
@@ -288,36 +303,32 @@ See source file '\inFileName' for details.
 %
 %    \subsection{User macros}
 %
-%    The allocaton macro.
+%    The allocaton macro is merely a wrapper around the Lua function, but
+%    handles error and logging in \tex, for consistency with other allocation
+%    macros.
 %
 %    \begin{macrocode}
-\newcount\lltxb@attribute@alloc
-\lltxb@attribute@alloc\m@ne
 \def\newluatexattribute#1{%
-  \ifnum\lltxb@attribute@alloc<65535\relax
-    \global\advance\lltxb@attribute@alloc\@ne
-    \allocationnumber\lltxb@attribute@alloc
+  \begingroup\escapechar\m@ne \expandafter\expandafter\expandafter
+  \endgroup                   \expandafter\expandafter\expandafter
+  \allocationnumber           \luatexbase@directlua{tex.write(
+    luatexbase.new_attribute("\luatexluaescapestring{\string#1}", true))}%
+  \ifnum\allocationnumber>\m@ne
     \global\luatexattributedef#1=\allocationnumber
-    \unsetluatexattribute#1%
-    \begingroup\escapechar\m@ne
-    \luatexbase@directlua{luatexbase.attributedef_from_tex(
-      '\luatexluaescapestring{\string#1}', '\number\allocationnumber')}%
-    \endgroup
     \wlog{\string#1=\string\luatexattribute\the\allocationnumber}%
   \else
     \errmessage{No room for a new \string\attribute}%
   \fi}
 %    \end{macrocode}
 %
-%    Helper macro |\unsetluatexattribute|: depends on \luatex's version.
+%    Helper macro |\unsetluatexattribute|: wrapper around the Lua function.
 %
 %    \begin{macrocode}
 \def\unsetluatexattribute#1{%
-  \ifnum\luatexversion<37\relax
-    #1=-1\relax
-  \else
-    #1=-"7FFFFFFF\relax
-  \fi}
+  \begingroup\escapechar\m@ne
+  \luatexbase@directlua{%
+    luatexbase.unset_attribute("\luatexluaescapestring{\string#1}")}%
+  \endgroup}
 %    \end{macrocode}
 %
 %    And now the trivial helper macro.
@@ -341,12 +352,44 @@ See source file '\inFileName' for details.
 module('luatexbase', package.seeall)
 %    \end{macrocode}
 %
-%    Record the allocation number in a Lua table.
+%    This table holds the values of the allocated attributes, indexed by name.
 %
 %    \begin{macrocode}
 attributes = {}
-function attributedef_from_tex(name, number)
-    attributes[name] = tonumber(number)
+%    \end{macrocode}
+%
+%    The allocaton function. Unlike other registers, allocate starting from 1.
+%    Some code (eg, font handling coming from Con\tex{}t) behaves strangely
+%    with \verb+\attribute0+ and since there is plenty of room here, it
+%    doesn't seem bad to ``loose'' one item in order to avoid this problem.
+%
+%    \begin{macrocode}
+local last_alloc = 0
+function new_attribute(name, silent)
+    if last_alloc >= 65535 then
+        if silent then
+            return -1
+        else
+            error("No room for a new \\attribute", 1)
+        end
+    end
+    last_alloc = last_alloc + 1
+    attributes[name] = last_alloc
+    unset_attribute(name)
+    if not silent then
+        texio.write_nl('log', string.format(
+            'luatexbase.attributes[%q] = %d', name, last_alloc))
+    end
+    return last_alloc
+end
+%    \end{macrocode}
+%
+%    Unset an attribute the correct way depending on \luatex's version.
+%
+%    \begin{macrocode}
+local unset_value = (luatexbase.luatexversion < 37) and -1 or -2147483647
+function unset_attribute(name)
+    tex.setattribute(attributes[name], unset_value)
 end
 %    \end{macrocode}
 %
@@ -370,6 +413,8 @@ end
 \unsetluatexattribute\testattr
 \catcode64 11
 \luatexbase@directlua{assert(luatexbase.attributes.testattr)}
+\luatexbase@directlua{luatexbase.new_attribute('luatestattr')}
+\luatexbase@directlua{assert(luatexbase.attributes.luatestattr)}
 \begingroup
 \escapechar64
 \newluatexattribute\anotherattr
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-cctb.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-cctb.dtx
index 141f1203bef..4b7b8c64231 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-cctb.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-cctb.dtx
@@ -114,7 +114,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \pk{luatexbase-cctb} package}
-% \date{v0.2 2010-05-12}
+% \date{v0.2a 2010-05-27}
 % \author{%
 %   Manuel P\'egouri\'e-Gonnard \\ \texttt{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \texttt{elie.roux@telecom-bretagne.eu}}
@@ -246,7 +246,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-cctb}[2010/05/11 v0.2 Catcodetable allocation for LuaTeX]
+\x{luatexbase-cctb}[2010/05/27 v0.2a Catcodetable allocation for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-compat.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-compat.dtx
index dbff084195c..f4a903b74be 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-compat.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-compat.dtx
@@ -103,7 +103,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \pk{luatexbase-compat} package}
-% \date{v0.2 2010/05/12}
+% \date{v0.2a 2010/05/27}
 % \author{%
 %  Manuel P\'egouri\'e-Gonnard \\ \email{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \email{elie.roux@telecom-bretagne.eu}}
@@ -258,7 +258,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-compat}[2010/05/12 v0.2 Compatibility tools for LuaTeX]
+\x{luatexbase-compat}[2010/05/27 v0.2a Compatibility tools for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-loader.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-loader.dtx
index 8fe81acb6d5..bd900c26969 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-loader.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-loader.dtx
@@ -117,7 +117,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \pk{luatexbase-loader} package}
-% \date{v0.2 2010-05-12}
+% \date{v0.2a 2010-05-27}
 % \author{%
 %  Manuel P\'egouri\'e-Gonnard \\ \texttt{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \texttt{elie.roux@telecom-bretagne.eu}}
@@ -230,7 +230,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-loader}[2010/05/12 v0.2 Lua module loader for LuaTeX]
+\x{luatexbase-loader}[2010/05/27 v0.2a Lua module loader for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-mcb.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-mcb.dtx
index f30753c737f..86a4788d2be 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-mcb.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-mcb.dtx
@@ -114,7 +114,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \textsf{luatexbase-mcb} package}
-% \date{2010/05/12 v0.2}
+% \date{2010/05/27 v0.2a}
 % \author{%
 %   Manuel P\'egouri\'e-Gonnard \\ \email{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \email{elie.roux@telecom-bretagne.eu}}
@@ -241,7 +241,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-mcb}[2010/05/12 v0.2 Callback management for LuaTeX]
+\x{luatexbase-mcb}[2010/05/27 v0.2a Callback management for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-modutils.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-modutils.dtx
index 9c2936f4ce8..dd5b118f9aa 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-modutils.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-modutils.dtx
@@ -263,7 +263,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-modutils}[2010/05/12 v0.2 Module utilities for LuaTeX]
+\x{luatexbase-modutils}[2010/05/27 v0.2a Module utilities for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
@@ -315,7 +315,7 @@ See source file '\inFileName' for details.
 %
 %    \begin{macrocode}
 \def\luatexUseModule#1{\luatexbase@directlua{%
-    luatexbase.use_module("\luatexluescapestring{#1}")}}
+    luatexbase.use_module("\luatexluaescapestring{#1}")}}
 %    \end{macrocode}
 %
 %    Interface to |require_module()| with syntax depending on the format.
@@ -486,7 +486,7 @@ function provides_module(mod)
     end
     requiredversion = requiredversions[mod.name]
     if requiredversion then
-        if requiredversion.type == date 
+        if requiredversion.type == date
         and requiredversion.version > datetonumber(mod.date) then
             err("loading module %s in version %s, "
             .."but version %s was required",
@@ -498,7 +498,7 @@ function provides_module(mod)
             mod.name, mod.version, requiredversion.orig)
         end
     end
-    modules[mod.name] = module
+    modules[mod.name] = mod
     texio.write_nl('log', string.format("Lua module: %s %s v%.02f %s\n",
     mod.name, mod.date, mod.version, mod.description))
 end
@@ -531,6 +531,7 @@ luatexbase.provides_module {
 %<testplain>\input luatexbase-modutils.sty
 %<testlatex>\RequirePackage{luatexbase-modutils}
 %<*testplain,testlatex>
+\luatexUseModule{test-modutils}
 \luatexRequireModule
 %<testlatex>[1970/01/01]
 {test-modutils}
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-regs.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-regs.dtx
index 313af007c97..08d1060ab23 100644
--- a/Master/texmf-dist/source/luatex/luatexbase/luatexbase-regs.dtx
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase-regs.dtx
@@ -104,7 +104,7 @@ See source file '\inFileName' for details.
 %   Right brace   \}     Tilde         \~}
 %
 % \title{The \pk{luatexbase-regs} package}
-% \date{v0.2 2010/05/12}
+% \date{v0.2a 2010/05/27}
 % \author{%
 %  Manuel P\'egouri\'e-Gonnard \\ \email{mpg@elzevir.fr} \and
 %   \'Elie Roux \\ \email{elie.roux@telecom-bretagne.eu}}
@@ -211,7 +211,7 @@ See source file '\inFileName' for details.
     \let\x\ProvidesPackage
   \fi
 \expandafter\endgroup
-\x{luatexbase-regs}[2010/05/12 v0.2 Registers allocation for LuaTeX]
+\x{luatexbase-regs}[2010/05/27 v0.2a Registers allocation for LuaTeX]
 %    \end{macrocode}
 %
 %    Make sure \luatex is used.
diff --git a/Master/texmf-dist/source/luatex/luatexbase/luatexbase.dtx b/Master/texmf-dist/source/luatex/luatexbase/luatexbase.dtx
new file mode 100644
index 00000000000..f2859128497
--- /dev/null
+++ b/Master/texmf-dist/source/luatex/luatexbase/luatexbase.dtx
@@ -0,0 +1,260 @@
+% \iffalse meta-comment
+%
+% Written in 2009, 2010 by Manuel Pégourié-Gonnard and Élie Roux.
+%     <mpg@elzevir.fr>
+%     <elie.roux@telecom-bretagne.eu>
+%
+% This work is under the CC0 license.
+%
+% This work consists of the main source file luatexbase.dtx
+% and the derived files
+%    luatexbase.sty
+%
+% Unpacking:
+%    tex luatexbase.dtx
+% Documentation:
+%    pdflatex luatexbase.dtx
+%
+%<*ignore>
+\begingroup
+  \def\x{LaTeX2e}%
+\expandafter\endgroup
+\ifcase 0\ifx\install y1\fi\expandafter
+         \ifx\csname processbatchFile\endcsname\relax\else1\fi
+         \ifx\fmtname\x\else 1\fi\relax
+\else\csname fi\endcsname
+%</ignore>
+%<*install>
+\input docstrip.tex
+
+\keepsilent
+\askforoverwritefalse
+
+\let\MetaPrefix\relax
+
+\preamble
+
+Written in 2009, 2010 by Manuel Pegourie-Gonnard and Elie Roux.
+
+This work is under the CC0 license.
+See source file '\inFileName' for details.
+
+\endpreamble
+
+\generate{%
+  \usedir{tex/luatex/luatexbase}%
+  \file{luatexbase.sty}{\from{luatexbase.dtx}{texpackage}}%
+}
+
+\obeyspaces
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* files into a directory searched by TeX:}
+\Msg{*}
+\Msg{*     luatexbase.sty}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\documentclass{ltxdoc}
+\input{lltxb-dtxstyle}
+\newcommand\subpk[1]{%
+  \item[\href{luatexbase-#1.pdf}{luatexbase-#1}\normalfont:]}
+\begin{document}
+  \DocInput{luatexbase.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{0}
+%
+% \CharacterTable
+%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%   Digits        \0\1\2\3\4\5\6\7\8\9
+%   Exclamation   \!     Double quote  \"     Hash (number) \#
+%   Dollar        \$     Percent       \%     Ampersand     \&
+%   Acute accent  \'     Left paren    \(     Right paren   \)
+%   Asterisk      \*     Plus          \+     Comma         \,
+%   Minus         \-     Point         \.     Solidus       \/
+%   Colon         \:     Semicolon     \;     Less than     \<
+%   Equals        \=     Greater than  \>     Question mark \?
+%   Commercial at \@     Left bracket  \[     Backslash     \\
+%   Right bracket \]     Circumflex    \^     Underscore    \_
+%   Grave accent  \`     Left brace    \{     Vertical bar  \|
+%   Right brace   \}     Tilde         \~}
+%
+% \title{The \pk{luatexbase} package}
+% \date{v0.2a 2010-05-27}
+% \author{%
+%  Manuel P\'egouri\'e-Gonnard \\ \email{mpg@elzevir.fr} \and
+%  \'Elie Roux \\ \email{elie.roux@telecom-bretagne.eu}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% This convenience package loads all of the (stable) packages in the
+% \pk{luatexbase} bundle.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% The \pk{luatexbase} package loads the following packages:
+% \begin{description}
+%   \subpk{compat} compatibility helpers for \verb+\directlua+, primitive
+%   names and version information from Lua.
+%   \subpk{loader} extension of \luatex's Lua module loader (since version
+%   0.60.0, this is more of a compatibility layer for older versions than a
+%   real extension).
+%   \subpk{regs} extented allocation scheme for registers and the like,
+%   \emph{\`a la} \pk{etex}.
+%   \subpk{cctb} catcode table allocation.
+%   \subpk{attr} attribute allocation.
+% \end{description}
+%
+% These packages are almost stable: it is unlikely that backward-incompatible
+% changes will be made in the future (other than necessary for merging with
+% \pk{luatex.sty}, which strongly overlaps with the above). If they happen,
+% such changes will be announced on \email{lualatex-dev@tug.org} before they
+% are pushed to the master branch and then CTAN.
+%
+% Other packages included in the bundle, but currently not loaded by the
+% present package, are:
+% \begin{description}
+%   \subpk{modutils} Lua module declaration, including version checks.
+%   \subpk{mcb} callbacks extensions allowing to register many functions in a
+%   single callback, and declare new callbacks for packages.
+% \end{description}
+%
+% All packages in this bundle are supposed to work with \luatex 0.25.4 to
+% 0.60.x, with formats based on \plaintex or \latex, as included in \texlive
+% 2008, 2009, and 2010.
+%
+%    \section{Implementation}
+%
+%    \begin{macrocode}
+%<*texpackage>
+%    \end{macrocode}
+%
+%    \subsection{Preliminaries}
+%
+%    Reload protection, especially for \plaintex.
+%
+%    \begin{macrocode}
+                \csname lltxb@core@loaded\endcsname
+\expandafter\let\csname lltxb@core@loaded\endcsname\endinput
+%    \end{macrocode}
+%
+%    Catcode defenses.
+%
+%    \begin{macrocode}
+\begingroup
+  \catcode123 1 % {
+  \catcode125 2 % }
+  \catcode 35 6 % #
+  \toks0{}%
+  \def\x{}%
+  \def\y#1 #2 {%
+    \toks0\expandafter{\the\toks0 \catcode#1 \the\catcode#1}%
+    \edef\x{\x \catcode#1 #2}}%
+  \y 123 1  % {
+  \y 125 2  % }
+  \y  35 6  % #
+  \y  10 12 % ^^J
+  \y  34 12 % "
+  \y  36 3  % $ $
+  \y  39 12 % '
+  \y  40 12 % (
+  \y  41 12 % )
+  \y  42 12 % *
+  \y  43 12 % +
+  \y  44 12 % ,
+  \y  45 12 % -
+  \y  46 12 % .
+  \y  47 12 % /
+  \y  60 12 % <
+  \y  61 12 % =
+  \y  64 11 % @ (letter)
+  \y  62 12 % >
+  \y  95 12 % _ (other)
+  \y  96 12 % `
+  \edef\y#1{\endgroup\edef#1{\the\toks0\relax}\x}%
+\expandafter\y\csname lltxb@core@AtEnd\endcsname
+%    \end{macrocode}
+%
+%    Package declaration.
+%
+%    \begin{macrocode}
+\begingroup
+  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
+    \def\x#1[#2]{\immediate\write16{Package: #1 #2}}
+  \else
+    \let\x\ProvidesPackage
+  \fi
+\expandafter\endgroup
+\x{luatexbase}[2010/05/27 v0.2a Module utilities for LuaTeX]
+%    \end{macrocode}
+%
+%    Make sure \luatex is used.
+%
+%    \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+  \input ifluatex.sty
+\else
+  \RequirePackage{ifluatex}
+\fi
+\ifluatex\else
+  \begingroup
+    \expandafter\ifx\csname PackageWarningNoLine\endcsname\relax
+      \def\x#1#2{\begingroup\newlinechar10
+        \immediate\write16{Package #1 warning: #2}\endgroup}
+    \else
+      \let\x\PackageWarningNoLine
+    \fi
+  \expandafter\endgroup
+  \x{luatexbase}{LuaTeX is required for this package. Aborting.}
+  \lltxb@core@AtEnd
+  \expandafter\endinput
+\fi
+%    \end{macrocode}
+%
+%    \subsection{Packages loading}
+%
+%    \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+  \input luatexbase-compat.sty
+  \input luatexbase-loader.sty
+  \input luatexbase-regs.sty
+  \input luatexbase-attr.sty
+  \input luatexbase-cctb.sty
+\else
+  \RequirePackage{luatexbase-compat}
+  \RequirePackage{luatexbase-loader}
+  \RequirePackage{luatexbase-regs}
+  \RequirePackage{luatexbase-attr}
+  \RequirePackage{luatexbase-cctb}
+\fi
+%    \end{macrocode}
+%
+%    This is the end, my friend\dots the end.
+%
+%    \begin{macrocode}
+\lltxb@core@AtEnd
+%</texpackage>
+%    \end{macrocode}
+%
+%
+% \Finale
+\endinput