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%% Macros needed for EYacas.
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%% Jay Belanger (belanger@truman.edu)
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%% Some of this was taken from Dan Dill's TeX/MMA (in modified
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%% form, of course), and some was taken from other sources. Some
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%% I may even have written myself.
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\def\Yacas{{\sffamily yacas\/}}
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\def\yacasheadersize{\tiny}
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%% Let's use some local macros
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\newdimen\yacasinputbaselineskip
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\newdimen\yacasoutputbaselineskip
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\newdimen\preyacasspace
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%% Here are the values that the user may wish to change.
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%% They can be changed here or in the main TeX file.
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\font\yacasinputfont = cmtt10
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\yacasinputbaselineskip = 10pt
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\font\yacasoutputfont = cmtt10
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\yacasoutputbaselineskip = 14pt
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%% First of all, set up some delimiters
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%% The units are in terms of em and ex, so if the font size is
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%% changed, the units will be changed accordingly
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%% To make things line up, we'll need the size of "Initial"
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\font\yac@sheaderfont=cmtt8 scaled 800
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\setbox0=\hbox{\yac@sheaderfont\ Initial}
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\def\sm@llsk{\vskip 1ex}
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\hbox to \hsize{\vrule depth 1ex height .3pt width .4pt
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\vrule height .4pt depth 0pt width 1.1em
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\lower .4ex \hbox{\yacasheadersize\ \Yacas}
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\vrule depth 1ex height .3pt width .4pt}
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\hbox to \hsize{\vrule depth 1ex height .3pt width .4pt
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\vrule height .4pt depth 0pt width 1.1em
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\lower .4ex \hbox{\yacasheadersize\ \Yacas}
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\lower .4ex \hbox{\yac@sheaderfont\ Initial}
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\vrule height .4pt depth 0pt width 1em
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\vrule depth 1ex height .3pt width .4pt}
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\hbox to \hsize{\vrule depth 1ex height .3pt width .4pt
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\vrule height .4pt depth 0pt width 1.1em
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\lower .4ex \hbox{\yacasheadersize\ \Yacas}
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\lower .4ex \hbox{\yac@sheaderfont\ #1}
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\vrule height .4pt depth 0pt width \in@t
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\vrule depth 1ex height .3pt width .4pt}
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\def\yac@sinitparttop#1{
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\hbox to \hsize{\vrule depth 1ex height .3pt width .4pt
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\vrule height .4pt depth 0pt width 1.1em
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\lower .4ex \hbox{\yacasheadersize\ \Yacas}
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\lower .4ex \hbox{\yac@sheaderfont\ #1}
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\lower .4ex \hbox{\yac@sheaderfont\ Initial}
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\vrule height .4pt depth 0pt width 1em
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\vrule depth 1ex height .3pt width .4pt}
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\hbox to \hsize{\hskip 1.5em
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\vrule height .4pt depth 0pt width 3em
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\lower .4ex \hbox{\yac@sheaderfont\ Output}
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\hbox to \hsize{\hskip 1.5em
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\vrule height .4pt depth 0pt width 3em
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\lower .4ex \hbox{\yac@sheaderfont\ \TeX\ Output}
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\def\yac@sgraphicsoutput{
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\hbox to \hsize{\hskip 1.5em
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\vrule height .4pt depth 0pt width 3em
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\lower .4ex \hbox{\yac@sheaderfont\ Graphics}
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\hbox to \hsize{\vrule depth 0ex height 1ex width .4pt
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\vrule depth 0ex height 1ex width .4pt}
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%% Next, it is necessary to have a verbatim environment for the Yacas
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%% The verbatim environment for the input is based mostly on the
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%% environment from "TeX for the Impatient" and Tim Morgan's verbtim2.tex
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{\catcode`\ =13\gdef\verbatimdefs{\def^^M{\ \par}\let =\ }}
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\gdef\verbatimgobble#1^^M{}}
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\def\yac@sinputverbatim{
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\setlength{\parskip}{0pt} %% added by WMS
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\let\endyac@sinputverbatim=\endgroup
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%% The verbatim for Yacas output is taken from the TeXbook.
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%% It allows more symbols, but can't be used for the input
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%% since the input can be ended with more than one delimiter.
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\def\uncatcodespecials{\def\do##1{\catcode`##1=12 }\dospecials}
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\def\obeyspaces{\catcode`\ =\active}
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{\catcode`\^^M=\active %
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\gdef\obeylines{\catcode`\^^M=\active \let^^M=\par}%
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\global\let^^M=\par} %
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\def\setupyac@sverbatim{\yacasoutputfont
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\obeylines \uncatcodespecials \obeyspaces}
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{\obeyspaces\global\let =\ }
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\def\yac@soutputverbatim{\par\begingroup
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\baselineskip = \yacasoutputbaselineskip
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\setupyac@sverbatim\doyac@sverbatim}
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{\catcode`\|=0 \catcode`\\=12 %
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|obeylines|gdef|doyac@sverbatim^^M#1\endyacas{#1|endgroup|yac@sbottom|par|vskip 1.5ex|par|endgroup}}
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%% Now we need to set up the actual environments.
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%% We will need some "if"s to tell us where we are
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\newif\ifyac@stexoutput
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\newif\ifyac@sgraphics
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%% The top delimiter depends on whether or not it is an initial cell,
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\par \vskip \preyacasspace \par
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\baselineskip = \yacasinputbaselineskip
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\futurelet\nextchar\yac@s
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\let\next = \yac@sinit
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\let\next = \yac@spart
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\let\next = \yac@sstart
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\let\next = \yac@sinitpart
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\let\next = \yac@sinitonly
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\def\yac@spart<#1:#2>{
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\def\yac@sparttext{Definition of package #1}
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\def\yac@sparttext{<#1:#2>}
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\yac@sparttop\yac@sparttext
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\futurelet\nextchar\yac@sp@rt
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\def\yac@sinitpart<#1:#2>{
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\def\yac@sparttext{Definition of package #1}
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\def\yac@sparttext{<#1:#2>}
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\yac@sinitparttop\yac@sparttext
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\futurelet\nextchar\yac@sp@rt
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%% Now to take care of the various types of output
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\endyac@sinputverbatim
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\endyac@sinputverbatim
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%% If the output is graphics, we'll need to load epsf.tex, but there's
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%% no need to load it if there are no graphics, and there is no need
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%% to load it more than once.
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\endyac@sinputverbatim
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\def\@ndoutputgraphics{}
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%% We'll need to have a macro for the graphics
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\centerline{ \epsfxsize = #1 \epsfbox{#2}}
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\endyac@sinputverbatim
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% Finally, to help with backslashes,
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\def\bs{$\backslash$}
added
removed
YacasNotebook/yacas-notebook.sty
