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-rw-r--r--macros/latex/contrib/slashbox/slashbox.sty77
1 files changed, 77 insertions, 0 deletions
diff --git a/macros/latex/contrib/slashbox/slashbox.sty b/macros/latex/contrib/slashbox/slashbox.sty
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index 0000000000..1712c9e7ce
--- /dev/null
+++ b/macros/latex/contrib/slashbox/slashbox.sty
@@ -0,0 +1,77 @@
+% slashbox.sty by Koichi Yasuoka, May 27, 1993
+% minor modification by Toru Sato, May 31, 1993
+\typeout{slashbox style by K.Yasuoka, May 1993.}%
+\newbox\@slashboxa
+\newbox\@slashboxb
+\newbox\@slashboxc
+\newcount\@slashboxwd
+\newcount\@slashboxht
+\newdimen\@slashsepl
+\newdimen\@slashsepr
+\def\slashbox{%
+ \def\@slashboxpicture##1{%
+ \put(0,0){\line(##1,1){\@slashboxwd}}%
+ \put(0,\@slashboxht){\makebox(0,0)[tl]{\box\@slashboxa}}%
+ \put(\@slashboxwd,0){\makebox(0,0)[br]{\box\@slashboxb}}%
+ }%
+ \@slashbox
+}%
+\def\backslashbox{%
+ \def\@slashboxpicture##1{%
+ \put(0,\@slashboxht){\line(##1,-1){\@slashboxwd}}%
+ \put(0,0){\makebox(0,0)[bl]{\box\@slashboxa}}%
+ \put(\@slashboxwd,\@slashboxht){\makebox(0,0)[tr]{\box\@slashboxb}}%
+ }%
+ \@slashbox
+}%
+\def\@slashbox{\@ifnextchar [{\@@slashbox}{\@@slashbox[0pt]}}
+\def\@@slashbox[#1]{\@ifnextchar [{\@@@slashbox[#1]}{\@@@slashbox[#1][c]}}
+\def\@@@slashbox[#1][#2]#3#4{%
+% #1: width, #2: suppression of \tabcolsep on `l', `r', or `lr' side
+% #3: left item, #4: right item
+ \@slashsepl=\tabcolsep
+ \@slashsepr=\tabcolsep
+ \@tfor\@tempa :=#2\do{\expandafter\let
+ \csname @slashsep\@tempa\endcsname=\z@}%
+ \setbox\@slashboxa=\hbox{\strut\hskip\tabcolsep\shortstack[l]{#3}}%
+ \setbox\@slashboxb=\hbox{\shortstack[r]{#4}\hskip\tabcolsep\strut}%
+ \setbox\@slashboxa=\hbox{\raise\dp\@slashboxa\box\@slashboxa}%
+ \setbox\@slashboxb=\hbox{\raise\dp\@slashboxb\box\@slashboxb}%
+ \setbox\@slashboxc=\hbox{%
+ \@tempdima=\wd\@slashboxa
+ \advance\@tempdima by \wd\@slashboxb
+ \advance\@tempdima by \@slashsepl
+ \advance\@tempdima by \@slashsepr
+ \@tempdimb=#1\relax%
+ \ifdim\@tempdimb>\@tempdima \@tempdima=\@tempdimb\fi%
+ \@tempdimb=\ht\@slashboxa
+ \advance\@tempdimb by \dp\@slashboxa
+ \advance\@tempdimb by \ht\@slashboxb
+ \advance\@tempdimb by \dp\@slashboxb
+ \@tempcnta=\@tempdima
+ \@tempcntb=\@tempdimb
+ \advance\@tempcnta by \@tempcntb
+ \advance\@tempcnta by -1
+ \divide\@tempcnta by \@tempcntb
+ \ifnum\@tempcnta>6 \@tempcnta=6
+ \@tempdimb=0.166666666\@tempdima
+ \else
+ \ifnum\@tempcnta<1 \@tempcnta=1\fi
+ \@tempdima=\@tempdimb
+ \multiply\@tempdima by \@tempcnta
+ \fi%
+ \advance\@tempdima by -\@slashsepl
+ \advance\@tempdima by -\@slashsepr
+ \@slashboxwd=\@tempdima
+ \@slashboxht=\@tempdimb
+ \@tempcntb=\@slashsepl
+ \setlength{\unitlength}{1sp}%
+ \begin{picture}(\@slashboxwd,\@slashboxht)(\@tempcntb,0)
+ \advance\@tempdima by \@slashsepl
+ \advance\@tempdima by \@slashsepr
+ \@slashboxwd=\@tempdima
+ \@slashboxpicture{\@tempcnta}
+ \end{picture}%
+ }%
+ $\vcenter{\box\@slashboxc}$%
+}%