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Edit File: luatexbase-attr.sty

%%
%% This is file `luatexbase-attr.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% luatexbase-attr.dtx  (with options: `texpackage')
%% 
%% Written in 2009, 2010 by Manuel Pegourie-Gonnard and Elie Roux.
%% 
%% This work is under the CC0 license.
%% See source file 'luatexbase-attr.dtx' for details.
%% 
                \csname lltxb@attr@loaded\endcsname
\expandafter\let\csname lltxb@attr@loaded\endcsname\endinput
\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@attr@AtEnd\endcsname
\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-attr}[2011/05/21 v0.31 Attributes allocation for LuaTeX]
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname RequirePackage\endcsname\relax
  \input ifluatex.sty
\else
  \RequirePackage{ifluatex}
\fi
\ifluatex\else
  \begingroup
    \expandafter\ifx\csname PackageError\endcsname\relax
      \def\x#1#2#3{\begingroup \newlinechar10
        \errhelp{#3}\errmessage{Package #1 error: #2}\endgroup}
    \else
      \let\x\PackageError
    \fi
  \expandafter\endgroup
  \x{luatexbase-attr}{LuaTeX is required for this package. Aborting.}{%
    This package can only be used with the LuaTeX engine^^J%
    (command `lualatex' or `luatex').^^J%
    Package loading has been stopped to prevent additional errors.}
  \lltxb@attr@AtEnd
  \expandafter\endinput
\fi
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname RequirePackage\endcsname\relax
  \input luatexbase-compat.sty
\else
  \RequirePackage{luatexbase-compat}
\fi
\luatexbase@ensure@primitive{luaescapestring}
\luatexbase@ensure@primitive{attributedef}
\luatexbase@ensure@primitive{attribute}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname RequirePackage\endcsname\relax
  \input luatexbase-loader.sty
\else
  \RequirePackage{luatexbase-loader}
\fi
\luatexbase@directlua{require('luatexbase.attr')}
\def\newluatexattribute#1{%
  \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
    \wlog{\string#1=\string\luatexattribute\the\allocationnumber}%
  \else
    \errmessage{No room for a new \string\attribute}%
  \fi}
\def\unsetluatexattribute#1{%
  \begingroup\escapechar\m@ne \edef\x{\endgroup
    \noexpand\luatexbase@directlua{%
      luatexbase.unset_attribute("\luatexluaescapestring{\string#1}")}%
  }\x}
\def\setluatexattribute#1#2{%
  #1=\numexpr#2\relax}
\lltxb@attr@AtEnd
\endinput
%%
%% End of file `luatexbase-attr.sty'.