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%% Syntax functions
\@lisp@env@add@global\quote{\@tlabel@quote{}}%
\@lisp@env@add@global\lambda{\@tlabel@lambda{}}
\@lisp@env@add@global\define{\@tlabel@define{}}
\@lisp@env@add@global\lispif{\@tlabel@if{}}
\@lisp@env@add@global\defmacro{\@tlabel@defmacro{}}
\@lisp@env@add@global\begin{\@tlabel@begin{}}
\@lisp@env@add@global\defineM{\@tlabel@mdefine{}}
\@lisp@env@add@global\setB{\@tlabel@setb{}}
\@lisp@env@add@global\@let{\@tlabel@@let{}}
\@lisp@env@add@global\@mlet{\@tlabel@@mlet{}}
\@lisp@env@add@global\macroexpand{\@tlabel@macroexpand{}}
\@lisp@env@add@global\callOCC{\@tlabel@callocc{}}
\@lisp@env@add@global\car{\@tlabel@func{\@lisp@func@check@args{1}{\@lisp@perform@car}}}
\@lisp@env@add@global\cdr{\@tlabel@func{\@lisp@func@check@args{1}{\@lisp@perform@cdr}}}
\@lisp@env@add@global\cons{\@tlabel@func{\@lisp@func@check@args{2}{\@lisp@perform@cons}}}
\newcount\@temp@count
\@lisp@env@add@global\length{\@tlabel@func{\@lisp@func@check@args{1}{\@lisp@length}}}
\def\@lisp@length{\@temp@count0\relax\@lisp@length@}
\def\@lisp@length@#1#2#3{%
\ifx#2\@tlabel@nil
\expandafter\gdef\expandafter#1%
\expandafter{\expandafter\@tlabel@int\expandafter{\the\@temp@count}}%
\let\@length@next\@length@gobble
\else\ifx#2\@tlabel@cons
\advance\@temp@count1\relax
\let\@length@next\@@lisp@length
\else
\errmessage{LISP on TeX [function--length]: The Argument must be a LIST}%
\fi\fi\@length@next#3#1}
\def\@length@gobble#1{}
\def\@@lisp@length#1#2#3{\expandafter\@lisp@length@\expandafter#3#2}
%equality
\@lisp@env@add@global\={\@tlabel@func{\@lisp@func@check@args{2}{\@lisp@equal}}}
\def\@lisp@equal#1#2#3#4#5{%
\gdef#1{\@tlabel@bool{f}}%
\ifx#2#4%
\def\@@temp@eqchecki{#3}%
\def\@@temp@eqcheckii{#5}%
\ifx\@@temp@eqchecki\@@temp@eqcheckii\gdef#1{\@tlabel@bool{t}}\fi
\fi}
% printing function
\@lisp@env@add@global\print{\@tlabel@func{\@lisp@func@check@args{1}{\@tex@print}}}
\def\@tex@print#1{\gdef#1{\@tlabel@nil{}}\@tex@print@}
\def\@tex@print@#1#2{%
\ifx#1\@tlabel@int
\@add@to@write@buffer\@temp@write@buffer{:#2}%
\else\ifx#1\@tlabel@symbol
\@add@to@write@buffer\@temp@write@buffer{\string#2}%
\else\ifx#1\@tlabel@string
\@add@to@write@buffer\@temp@write@buffer{'#2'}%
\else\ifx#1\@tlabel@bool
\@add@to@write@buffer\@temp@write@buffer{/#2}%
\else\ifx#1\@tlabel@dimen
\@add@to@write@buffer\@temp@write@buffer{!#2}%
\else\ifx#1\@tlabel@skip
\@add@to@write@buffer\@temp@write@buffer{@#2}%
\else\ifx#1\@tlabel@nil
\@add@to@write@buffer\@temp@write@buffer{()}%
\else\ifx#1\@tlabel@cons
\@add@to@write@buffer\@temp@write@buffer{(}%
\@tex@print@cell#2%
\else
\@add@to@write@buffer\@temp@write@buffer{[INNER]}%
\fi\fi\fi\fi\fi\fi\fi\fi}
\def\@tex@print@cell#1#2{%
\expandafter\@tex@print@#1%
\expandafter\@tex@print@cdr#2}
\def\@tex@print@cdr#1#2{%
\ifx#1\@tlabel@cons
\@add@to@write@buffer\@temp@write@buffer{ }%
\@tex@print@cell#2%
\else\ifx#1\@tlabel@nil
\@add@to@write@buffer\@temp@write@buffer{)}%
\else
\@add@to@write@buffer\@temp@write@buffer{.}%
\@tex@print@#1{#2}%
\@add@to@write@buffer\@temp@write@buffer{)}%
\fi\fi}
\@lisp@env@add@global\texprint{\@tlabel@func{\@lisp@func@check@args{1}{\@tex@texprint}}}
\def\@tex@texprint#1#2#3{%
\gdef#1{\@tlabel@nil{}}\@@tex@texprint#2{#3}}
\def\@@tex@texprint#1#2{%
\ifx#1\@tlabel@string
\@add@to@write@buffer\@temp@write@buffer{#2}%
\else\ifx#1\@tlabel@int
\@add@to@write@buffer\@temp@write@buffer{#2}%
\else
\@add@to@write@buffer\@temp@write@buffer{INNER TOKEN}%
\fi\fi}
\@lisp@env@add@global\stdprint{\@tlabel@func{\@lisp@func@check@args{1}{\@tex@stdprint}}}
\def\@tex@stdprint#1#2#3{%
\gdef#1{\@tlabel@nil{}}%
\let\@save@write@buffer\@temp@write@buffer
\def\@temp@write@buffer{}%
\@tex@print@#2{#3}%
\toks0\expandafter{\@temp@write@buffer}%
\immediate\write16{\the\toks0}%
\let\@temp@write@buffer\@save@write@buffer}
% Type predicates
\def\@type@pred@add#1{\expandafter\@@type@pred@add\expandafter#1}
\def\@@type@pred@add#1#2{\@lisp@env@add@global#1{\@tlabel@func{\@lisp@func@check@args{1}{#2}}}}
\def\@type@pred@define#1{\expandafter\@@type@pred@define\expandafter#1}
\def\@@type@pred@define#1#2{%
\def#1##1##2##3{\ifx##2#2\gdef##1{\@tlabel@bool{t}}\else\gdef##1{\@tlabel@bool{f}}\fi}}
\@for\@lisp@on@tex@type:=\@defined@datatype\do{%
\expandafter\@type@pred@add\csname\@lisp@on@tex@type Q\endcsname
\csname @type@\@lisp@on@tex@type\endcsname
\expandafter\@type@pred@define\csname @type@\@lisp@on@tex@type\endcsname\csname @tlabel@\@lisp@on@tex@type\endcsname}
\@lisp@env@add@global\pairQ{\@tlabel@func{\@type@cons}}
\@lisp@env@add@global\booleanQ{\@tlabel@func{\@type@bool}}
% eval , apply
\@lisp@env@add@global\eval{\@tlabel@envfunc{\@extern@eval}}
\def\@extern@eval#1#2#3#4{\@eval#3{#4}{#2}#1}
\@lisp@env@add@global\apply{\@tlabel@envfunc{\@extern@apply}}
\def\@extern@apply#1#2#3#4#5#6{% reg, env, labelfun, contfun, labellist, contlist
\def\@lisp@apply@temp{}% init
\@flatten@args#5{#6}\@lisp@apply@temp
\expandafter\@extern@apply@next\expandafter{\@lisp@apply@temp}#3{#4}{#2}#1}
\def\@extern@apply@next#1#2#3#4#5{% arglist-flatten, labelfun, contfun env, reg
{\expandafter\@@select@@apply#2{#3}#1\@{#4}#5}}
% values
%\@lisp@env@add@global\values{\@tlabel@func{\@lisp@multivalues}}
%\def\@lisp@multivalues#1#2\relax{\gdef#1{#2}}
% read
\@lisp@env@add@global\read{\@tlabel@func{\@lisp@func@check@args{0}{\@lisp@read@stdin}}}
\def\@lisp@read@stdin#1{%
\read-1 to#1%
\def\@lisp@read@stdin@callback##1##2{%
\gdef#1{##1{##2}}}%
\expandafter\@lispread\expandafter\@lisp@read@stdin@callback#1}
% create a list
\@lisp@env@add@global\list{\@tlabel@func{\@lisp@func@check@args{*}{\@lisp@prim@list@pre}}}
\def\@lisp@prim@list@pre#1{\gdef#1{}\@lisp@prim@list#1}
\def\@lisp@prim@list#1#2#3{%
\ifx#2\relax
\let\@@next\@lisp@prim@list@fin
\else
\let\@@next\@lisp@prim@list@add
\fi\@@next#1#2{#3}}
\def\@lisp@prim@list@add#1#2#3{%
\begingroup
\toks0\expandafter{#1}%
\toks1{#2{#3}}%
\xdef#1{\the\toks1 \the\toks0}%reverse arguments
\endgroup
\@lisp@prim@list#1}
\def\@lisp@prim@list@fin#1#2#3{\expandafter\@lisp@prim@list@fin@\expandafter#1#1\relax\relax}
\def\@lisp@prim@list@fin@#1{%
\gdef#1{\@tlabel@nil{}}%
\@lisp@prim@list@fin@@#1}
\def\@lisp@prim@list@fin@@#1#2#3{%
\ifx#2\relax
\def\@@next##1##2##3{}%
\else
\let\@@next\@lisp@prim@list@fin@@@
\fi
\@@next#1#2{#3}}
\def\@lisp@prim@list@fin@@@#1#2#3{\expandafter\@lisp@prim@list@fin@@@@#1#2{#3}#1}
\def\@lisp@prim@list@fin@@@@#1#2#3#4#5{\@lisp@perform@cons#5#3{#4}#1{#2}\@lisp@prim@list@fin@@#5}
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