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%% CONCAT : string -> string -> string
%% (\concat str1 str2) => str1 ++ str2
\addassoc\@globalenv\concat{\@tlabel@func{\def\@temp@str{}\@str@concat}}
\def\@str@concat#1#2#3{%
\let\@@next@str\relax
\ifx#2\@tlabel@string
\expandafter\def
\expandafter\@temp@str
\expandafter{\@temp@str#3}%
\let\@@next@str\@str@concat
\else\ifx#2\relax
\let\@@next@str\@str@fin
\else
\errmessage{LISP on TeX [function --- concat]:%
Arguments of concat must be strings}%
\fi\fi\@@next@str#1}
\def\@str@fin#1{%
\expandafter\gdef\expandafter#1%
\expandafter{\expandafter\@tlabel@string\expandafter{\@temp@str}}}
%% INT2STRING : int -> string
%% (\intTOstring i) -> 'i'
\addassoc\@globalenv\intTOstring{\@tlabel@func{\@conv@intTOstr}}
\def\@conv@intTOstr#1\@tlabel@int#2{\gdef#1{\@tlabel@string{#2}}}
%% IMMEDIATEWRITE : () -> ()
%% It outputs the output buffer immediately.
%% It cause error if the buffer is imcomlete.
\addassoc\@globalenv\immediatewrite{\@tlabel@func{\@immediate@write}}
\def\@immediate@write#1{%
\gdef#1{\@tlabel@nil{}}%
\@temp@write@buffer\gdef\@temp@write@buffer{}}
%% GROUP : string -> string
%% (\group str) -> '{str}'
\addassoc\@globalenv\group{\@tlabel@func{\@text@group}}
\def\@text@group#1#2#3{%
\ifx#2\@tlabel@string
\gdef#1{\@tlabel@string{{#3}}}%
\else
\errmessage{LISP on TeX [function --- group]:%
The argument of group must be a string.}%
\fi}
%% UNGROUP : string -> string
%% (\group '{str}') -> 'str'
\addassoc\@globalenv\ungroup{\@tlabel@func{\@text@ungroup}}
\def\@text@ungroup#1#2#3{%
\ifx#2\@tlabel@string
\@@text@ungroup#1#3\@@end
\else
\errmessage{LISP on TeX [function --- ungroup]:%
The argument of ungroup must be a string.}%
\fi}
\def\@@text@ungroup#1#2#3\@@end{%
\ifx;#3;%
\gdef#1{\@tlabel@string{#2}}%
\else
\errmessage{LISP on TeX [function --- ungroup]:%
The argument of ungroup must be a grouped string.}%
\fi}
|
