Created
May 15, 2013 13:19
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TeXで括弧の対応をとる, 上手くいかない例.
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% -*- coding: euc-jp -*- | |
\documentclass[10pt,draft]{jsarticle} | |
%\usepackage{amsmath,amssymb} | |
%\usepackage{kmathmacro} | |
%\usepackage{etex} | |
%\usepackage{etoolbox} | |
\makeatletter | |
\def\adicsp{% | |
\futurelet\@let@token\adicsp@aux | |
} | |
\def\adicsp@aux{% | |
\ifx\@let@token( | |
\let\@next\adicsp@call@getcorrparen | |
\else | |
\let\@next\adicspof | |
\fi | |
\@next | |
} | |
\def\adicsp@call@getcorrparen{% | |
\getcorrparen\adicsp@recieve | |
} | |
\def\adicsp@recieve{% | |
\gcp@@result^{\mathrm{ad}}% | |
} | |
\def\adicspof#1{% | |
#1^{\mathrm{ad}}% | |
} | |
\newcount\gcp@@count | |
\def\getcorrparen#1{% | |
\gcp@begin#1% | |
} | |
\def\gcp@begin#1{% | |
\begingroup | |
\let\gcp@return#1 | |
\gcp@@count = 0 | |
\def\gcp@@res{}% | |
%% この部分をかえると動作が変わる(当たり前) | |
% \catcode`\ =12 | |
\gcp@loop% | |
} | |
\def\gcp@const@open{(} | |
\def\gcp@const@close{)} | |
\def\gcp@counting{% | |
\ifx\@tempa\gcp@const@close | |
\advance \gcp@@count by -1 | |
\else\ifx\@tempa\gcp@const@open | |
\advance \gcp@@count by 1 | |
\fi\fi | |
} | |
\def\gcp@loop#1{% | |
\def\@tempa{#1} | |
%\show\@tempa | |
%\showthe\gcp@@count | |
\gcp@counting | |
\toks0\expandafter{\gcp@@res}% | |
% \toks2\expandafter{\@tempa} | |
% \toks2\expandafter{#1}% | |
\toks2{#1}% | |
\edef\gcp@@res{\the\toks0 \the\toks2}% | |
%\showthe\gcp@@count | |
\show\gcp@@res | |
\ifnum\gcp@@count>0 | |
\let\@next\gcp@loop | |
\else | |
\let\@next\gcp@end | |
\fi | |
\@next | |
} | |
\def\gcp@end{% | |
\catcode`\ =10 | |
% \expandafter\gdef\expandafter\gcp@@result{\gcp@@res} | |
\toks0\expandafter{\gcp@@res} | |
\global\edef\gcp@@result{\the\toks0} | |
\global\let\@next\gcp@return | |
\endgroup | |
\@next | |
} | |
\def\res#1 to #2;{#1|_{#2}} | |
\begin{document} | |
$\adicsp M$ | |
$\adicsp(M)$ % OK | |
$\adicsp(A(B)C)$ % 括弧の対応は取れている | |
$\adicsp(A \adicsp(B) C)$ % これも問題はない | |
$\adicsp(A \adicsp B C)$ % 空白のcatcodeを12にすると意図しない動作になる | |
%$\adicsp(\res f to U ;)$ % 空白のcatcodeが10でも12でも駄目 | |
%$\adicsp(\map f from X to Y ;) to Z ;$ % 多分同じ理由で駄目 | |
\end{document} | |
\makeatother |
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