272 lines
9.1 KiB
TeX
272 lines
9.1 KiB
TeX
\makeatletter
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\def\ie{\mbox{\emph{i.e.}}} % \mbox keeps the last period from
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\def\Ie{\mbox{\emph{I.e.}}} % looking like an end-of-sentence.
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\def\eg{\mbox{\emph{e.g.}}}
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\def\Eg{\mbox{\emph{E.g.}}}
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\def\etc{{\em etc.}}
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\def\Lisp{\textsc{Lisp}}
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\def\CommonLisp{\textsc{Common Lisp}}
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\def\Ascii{\textsc{Ascii}}
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\def\Ansi{\textsc{Ansi}}
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\def\Unix{{Unix}} % Not smallcaps, according to Bart.
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\def\Scheme{{Scheme}}
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\def\scm{{Scheme 48}}
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\def\R4RS{R4RS}
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\def\Posix{\textsc{Posix}}
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\def\sharpf{\normalfont\texttt{\#f}}
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\def\sharpt{\normalfont\texttt{\#t}}
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\newcommand{\synteq}{\textnormal{::=}}
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\def\maketildeother{\catcode`\~=12}
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\def\maketildeactive{\catcode`\~=13}
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\def\~{\char`\~}
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% One-line code examples
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%\newcommand{\codex}[1]% One line, centred. Tight spacing.
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% {$$\abovedisplayskip=.75ex plus 1ex minus .5ex%
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% \belowdisplayskip=\abovedisplayskip%
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% \abovedisplayshortskip=0ex plus .5ex%
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% \belowdisplayshortskip=\abovedisplayshortskip%
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% \hbox{\ttt #1}$$}
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%\newcommand{\codex}[1]{\begin{tightinset}\ex{#1}\end{tightinset}\ignorespaces}
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\newcommand{\codex}[1]{\begin{leftinset}\ex{#1}\end{leftinset}\ignorespaces}
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\def\widecode{\codeaux{\leftmargin=0pt\topsep=0pt}}
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\def\endwidecode{\endcodeaux}
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% For multiletter vars in math mode:
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\newcommand{\var}[1]{\mbox{\frenchspacing\it{#1}}}
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\newcommand{\vari}[2]{${\mbox{\it{#1}}}_{#2}$}
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%% What you frequently want when you say \tt:
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\def\ttchars{\catcode``=13\@noligs\frenchspacing}
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\def\ttt{\normalfont\ttfamily\ttchars}
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% Works in math mode; all special chars remain special; cheaper than \cd.
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% Will not be correct size in super and subscripts, though.
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\newcommand{\ex}[1]{{\normalfont\texttt{\ttchars #1}}}
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\newenvironment{inset}
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{\bgroup\parskip=1ex plus 1ex\begin{list}{}%
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{\topsep=0pt\rightmargin\leftmargin}%
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\item[]}%
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{\end{list}\leavevmode\egroup\global\@ignoretrue}
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\newenvironment{leftinset}
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{\bgroup\parskip=1ex plus 1ex\begin{list}{}%
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{\topsep=0pt}%
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\item[]}%
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{\end{list}\leavevmode\egroup\global\@ignoretrue}
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\newenvironment{tightinset}
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{\bgroup\parskip=0pt\begin{list}{}%
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{\topsep=0pt\rightmargin\leftmargin}%
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\item[]}%
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{\end{list}\leavevmode\egroup\global\@ignoretrue}
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\newenvironment{tightleftinset}
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{\bgroup\parskip=0pt\begin{list}{}%
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{\topsep=0pt}%
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\item[]}%
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{\end{list}\leavevmode\egroup\global\@ignoretrue}
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\long\def\remark#1{\bgroup\small\begin{quote}\textsl{Remark: } #1\end{quote}\egroup}
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\newenvironment{remarkenv}{\bgroup\small\begin{quote}\textsl{Remark: }}%
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{\end{quote}\egroup}
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\newcommand{\oops}[1]{\bgroup\small\begin{quote}\textsl{Oops: } #1\end{quote}\egroup}
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\newcommand{\note}[1]{\{Note #1\}}
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\newcommand{\itum}[1]{\item{\bf #1}\\*}
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% For use in code. The \llap magicness makes the lambda exactly as wide as
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% the other chars in \tt; the \hskip shifts it right a bit so it doesn't
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% crowd the left paren -- which is necessary if \tt is cmtt.
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% Note that (\l{x y} (+ x y)) uses the same number of columns in TeX form
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% as it produces when typeset. This makes it easy to line up the columns
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% in your input. \l is bound to some useless command in LaTeX, so we have to
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% define it w/renewcommand.
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\let\oldl\l %Save the old \l on \oldl
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\renewcommand{\l}[1]{\ \llap{$\lambda$\hskip-.05em}\ (#1)}
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% This one is for the rare (lambda x ...) case -- it doesn't have the
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% column-invariant property. Oh, well.
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\newcommand{\lx}[1]{\ \llap{$\lambda$\hskip-.05em}\ {#1}}
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% For subcaptions
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\newcommand{\subcaption}[1]
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{\unskip\vspace{-2mm}\begin{center}\unskip\em#1\end{center}}
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%%% T release notes stuff
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\newlength{\notewidth}
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\setlength{\notewidth}{\textwidth}
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\addtolength{\notewidth}{-1.25in}
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%\newcommand{\remark} [1]
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% {\par\vspace{\parskip}
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% \parbox[t]{.75in}{\sc Remark:}
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% \parbox[t]{\notewidth}{\em #1}
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% \vspace{\parskip}
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% }
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\newenvironment{optiontable}%
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{\begin{tightinset}\renewcommand{\arraystretch}{1.5}%
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\begin{tabular}{@{}>{\ttt}ll@{}}}%
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{\end{tabular}\end{tightinset}}%
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\newenvironment{desctable}[1]%
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{\begin{inset}\renewcommand{\arraystretch}{1.5}%
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\begin{tabular}{lp{#1}}}%
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{\end{tabular}\end{inset}}
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\def\*{{\ttt *}}
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% Names of things
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\newcommand{\keyword} [1]{\index{#1}{\normalfont\textsf{#1}}}
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\newcommand{\evalto}{$\Longrightarrow$\ }
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\renewcommand{\star}{$^*$\/}
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\newcommand{\+}{$^+$}
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% Semantic domains, used to indicate the type of a value
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\newcommand{\sem}{\normalfont\itshape} %semantic font
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\newcommand{\semvar}[1]{\textit{#1}} %semantic font
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\newcommand{\synvar}[1]{\textrm{\textit{$<$#1$>$}}} %syntactic font
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\newcommand{\type}{\sem}
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\newcommand{\zeroormore}[1]{{\sem #1$_1$ \ldots #1$_n$}}
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\newcommand{\oneormore}[1]{{\sem #1$_1$ #1$_2$ \ldots #1$_n$}}
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\newcommand{\proc} {{\sem procedure}}
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\newcommand{\boolean} {{\sem boolean}}
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\newcommand{\true} {{\sem true}}
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\newcommand{\false} {{\sem false}}
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\newcommand{\num} {{\sem number}}
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\newcommand{\fixnum} {{\sem fixnum}}
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\newcommand{\integer} {{\sem integer}}
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\newcommand{\real} {{\sem real}}
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\newcommand{\character} {{\sem character}}
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\newcommand{\str} {{\sem string}}
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\newcommand{\sym} {{\sem symbol}}
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\newcommand{\location} {{\sem location}}
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\newcommand{\object} {{\sem object}}
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\newcommand{\error} {{\sem error}}
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\newcommand{\syntaxerror} {{\sem syntax error}}
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\newcommand{\readerror} {{\sem read error}}
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\newcommand{\undefined} {{\sem undefined}}
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\newcommand{\noreturn} {{\sem no return value}}
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\newcommand{\port} {{\sem port}}
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% semantic variables
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\newcommand{\identifier} {{\sem identifier}}
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\newcommand{\identifiers} {\zeroormore{\<ident>}}
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\newcommand{\expr} {{\sem expression}}
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\newcommand{\body} {{\sem body}}
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\newcommand{\valueofbody} {{\sem value~of~body}}
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\newcommand{\emptylist} {{\sem empty~list}}
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\newcommand{\car} {\keyword{car}}
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\newcommand{\cdr} {\keyword{cdr}}
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% generally useful things
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% For line-breaking \tt stuff.
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\renewcommand{\=}{\discretionary{-}{}{-}}
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\newcommand{\ob}{\discretionary{}{}{}} % Optional break.
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\newcommand{\indx}[1]{#1 \index{ #1 }}
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%\newcommand{\gloss}[1]{#1 \glossary{ #1 }}
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% This lossage produces #2 if #1 is zero length, otw #3.
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% We use it to conditionally add a space between the procedure and
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% the args in procedure prototypes, but only if there are any args--
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% we want to produce "(read)", not "(read )".
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\newlength{\voidlen}
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\newcommand{\testvoid}[3]{\settowidth\voidlen{#1}\ifdim\voidlen>0in{#3}\else{#2}\fi}
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% Typeset a definition prototype line, e.g.:
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% (cons <arg1> <arg2>) -> pair procedure
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%
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% Five args are: proc-name args ret-value(s) type index-entry
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\newcommand{\dfnix}[4]% FIVE args, really.
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{\hbox to \linewidth{\ttchars%
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{\ttt(#1\testvoid{#2}{}{\ }{\sem{#2}}\testvoid{#2}{}{\/})\hskip 1em minus
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0.5em$\longrightarrow$\hskip 1em minus 0.5em{\sem{#3}}\hfill\quad\textnormal{#4}}}\index}
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\newcommand{\dfnx}[4] {\dfnix{#1}{#2}{#3}{#4}{#1@\texttt{#1}}}
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\newcommand{\dfn} {\par\medskip\dfnx} % Takes 4 args, actually.
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\newcommand{\dfni} {\par\medskip\dfnix} % Takes 5 args, actually.
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\newcommand{\defvar} {\par\medskip\defvarx} % Takes 4 args, actually.
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\newcommand{\defvarx}[2]%
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{\index{#1}
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\hbox to \linewidth{\ttchars{{\ttt{#1}} \hfill #2}}}%
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% Typeset the protocol line, then do the following descriptive text indented.
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% If you want to group two procs together, do the first one with a \dfn,
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% then the second one, and the documentation, with a \defndescx.
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% This one doesn't put whitespace above. Use it immediately after a \dfn
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% to group two prototype lines together.
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\newenvironment{dfndescx}[4]%
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{\dfnx{#1}{#2}{#3}{#4}\begin{desc}}{\end{desc}}
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\newenvironment{dfndesc}[4] % This one puts whitespace above.
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{\par\medskip\begin{dfndescx}{#1}{#2}{#3}{#4}}
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{\end{dfndescx}}
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\newenvironment{desc}%
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{\nopagebreak[2]%
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\smallskip
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\bgroup\begin{list}{}{\topsep=0pt\parskip=0pt}\item[]}
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{\end{list}\leavevmode\egroup\global\@ignoretrue}
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\newcommand{\defun} [3] {\dfn{#1}{#2}{#3}{procedure}} % preskip
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\newcommand{\defunx}[3]{\dfnx{#1}{#2}{#3}{procedure}} % no skip
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\newenvironment{defundescx}[3]%
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{\begin{dfndescx}{#1}{#2}{#3}{procedure}}
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{\end{dfndescx}}
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\newenvironment{defundesc}[3]%
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{\begin{dfndesc}{#1}{#2}{#3}{procedure}}
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{\end{dfndesc}}
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\newenvironment{column}{\begin{tabular}[t]{@{}l@{}}}{\end{tabular}}
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\newenvironment{exampletable}%
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{\begin{leftinset}%
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\newcommand{\header}[1]{\multicolumn{2}{@{}l@{}}{##1}\\}%
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\newcommand{\splitline}[2]%
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{\multicolumn{2}{@{}l@{}}{##1}\\\multicolumn{2}{@{}l@{}}{\qquad\evalto\quad{##2}}}
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\begin{tabular}{@{}l@{\quad\evalto\quad}l@{}}}%
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{\end{tabular}\end{leftinset}}
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% Put on blank lines in a code env to allow a pagebreak.
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\newcommand{\cb}{\pagebreak[0]}
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\newenvironment{boxedcode}
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{\begin{inset}\tabular{|l|}\hline}
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{\\ \hline \end{tabular}\end{inset}}
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% A ragged-right decl that doesn't redefine \\ -- for use in tables.
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\newcommand{\raggedrightparbox}{\let\temp=\\\raggedright\let\\=\temp}
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\newenvironment{boxedfigure}[1]%
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{\begin{figure}[#1]\begin{boxedminipage}{\linewidth}\vskip 1.5ex}
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{\end{boxedminipage}\end{figure}}
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\makeatother
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