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|
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{2sidedoc}[1999/01/24]
\newif\ifTSD@setpdimens \TSD@setpdimensfalse
\let\TSD@showdimen=\@gobble
\DeclareOption{setpagedimens}{\TSD@setpdimenstrue}
\DeclareOption{showdimens}{%
\def\TSD@showdimen#1{%
\dimen@=0.35146#1%
\immediate\write\sixt@@n{#1: \strip@pt\dimen@ mm}%
}%
}
\ProcessOptions\relax
\if@twoside
\normalmarginpar
\@mparswitchtrue
\ifTSD@setpdimens
% The total width of the part of the page on which text should be
% allowed to appear is the width of 94 characters in the current
% \MacroFont. (20 in the margin, 72 in the main text (whose width
% is \textwidth), and 2 separating them.)
\ifdim\z@>\textwidth
% If the \textwidth is negative at this point, the negation of
% that value is used, to allow for further configuration.
\setlength\textwidth{-\textwidth}%
% \marginparsep is left unchanged.
\else
\ifcase\@ptsize
% 10pt, computed using cmtt9 at 9pt
\setlength\textwidth{340.2pt}
\setlength\marginparsep{9.4499pt} % 2*4.72495pt
\or
% 11pt, computed using cmtt10 at 10pt
\setlength\textwidth{378.0pt}
\setlength\marginparsep{10.4999pt} % 2*5.24995pt
\or
% 12pt, computed using cmtt10 at 10.95pt
\setlength\textwidth{414pt}
\setlength\marginparsep{11.49738pt} % 2*5.74869pt
\else
% Assume \@ptsize is the main font size, but compute the width
% as if \MacroFont includes a \small setting which reduces the
% size of everything by "\magstep-0.5" (that is, by a factor
% 1.2^{-0.5}, and assume the metrics of the font coincide with
% those of cmtt8.
\setlength\textwidth{34.91781pt}
\setlength\textwidth{\@ptsize\textwidth}
\setlength\marginparsep{0.96994pt}
\setlength\marginparsep{\@ptsize\marginparsep}
\fi
\fi
\ifdim 3truecm>\paperwidth
\PackageError{twosidedoc}{Your \protect\paperwidth\space is %
ridiculously small}\@ehd
\dimen@=2truecm
\advance\dimen@ \marginparsep
\ifdim \dimen@<\paperwidth \else
\PackageError{twosidedoc}{You have an infinite loop ahead}%
{You really should type X to quit now.}
\fi
\fi
\dimen@ii=\p@
\loop
\dimen@=\paperwidth
\advance\dimen@ -\marginparsep
\advance\dimen@ -1.27778\textwidth
\ifdim 2truecm<\dimen@ \else
% This gets dangerously close to the physical margins. Shrink
% the \textwidth by 5%.
\setlength\textwidth{0.95\textwidth}
\dimen@ii=0.95\dimen@ii
\repeat
\ifdim\dimen@ii<\p@
\dimen@=72\dimen@
\dimen@ii=100\dimen@ii
\ifdim\dimen@ii<90\p@
\expandafter\PackageWarningNoLine
\else
\expandafter\PackageInfo
\fi{twosidedoc}{%
The width of the text has been shrunk\MessageBreak
to \strip@pt\dimen@ii\@percentchar\space of its original %
size.\MessageBreak
This is approximately \strip@pt\dimen@\space characters.%
}
\fi
% Now at last \textwidth is established. The other values follow easily.
\setlength\marginparwidth{0.27778\textwidth}
% Margins are calculated as follows: 1 cm is reserved at each side
% and what remains is split 1:2 between inner and outer margin.
\dimen@=\paperwidth
\advance\dimen@ -\textwidth
\advance\dimen@ -\marginparsep
\advance\dimen@ -\marginparwidth
\advance\dimen@ -2truecm
\divide\dimen@ \thr@@
\setlength\oddsidemargin{\dimen@}
\setlength\evensidemargin{2\dimen@}
\advance\oddsidemargin 1truecm
\advance\oddsidemargin -1truein
\advance\evensidemargin \marginparsep
\advance\evensidemargin \marginparwidth
\advance\evensidemargin 1truecm
\advance\evensidemargin -1truein
\else
% Otherwise only the margins are changed.
\setlength\evensidemargin{\oddsidemargin}
\setlength\oddsidemargin{\paperwidth}
\advance\oddsidemargin -\textwidth
\advance\oddsidemargin -2truein
\advance\oddsidemargin -\evensidemargin
\advance\marginparsep 5\p@
\dimen@=\evensidemargin
\advance\dimen@ 1truein
\advance\dimen@ -1truecm
\advance\dimen@ -\marginparsep
\setlength\marginparwidth{\dimen@}
\fi
\else
\advance\marginparsep 5\p@
\dimen@=\oddsidemargin
\advance\dimen@ 1truein
\advance\dimen@ -1truecm
\advance\dimen@ -\marginparsep
\setlength\marginparwidth{\dimen@}
\fi
\TSD@showdimen\textwidth
\TSD@showdimen\oddsidemargin
\TSD@showdimen\evensidemargin
\TSD@showdimen\marginparwidth
\TSD@showdimen\marginparsep
\TSD@showdimen\marginparpush
\TSD@showdimen\jot
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Modifications of macro etc.
%
\newcount\macro@line@cnt
\macro@line@cnt=\z@
% \macro@cnt keeps track of how many macro names have been printed.
% \macro@line@cnt keeps track of how many lines it has taken.
\def\TSD@prevgraf{1}
% The last stored value of \prevgraf.
\newif\ifTSD@rightmargin@
% Should macro/environment name be formatted for printing in the
% right margin? (false = for left margin).
\def\PrintMacroName#1{%
\expandafter\TSD@print@name \expandafter{\string#1}%
}
\def\PrintDescribeMacro#1{%
\expandafter\TSD@print@name \expandafter{\expandafter\strut
\string#1\strut}%
}
\def\PrintEnvName#1{\TSD@print@name{#1}}
\def\PrintDescribeEnv#1{\TSD@print@name{\strut#1\strut}}
\def\TSD@print@name#1{%
\raise 1ex\hbox{%
\MacroFont
\lower 1ex\vtop{%
\everypar={}% Very important!!!!
\hsize=\marginparwidth
\parindent=\z@
\parskip=\z@skip
\baselineskip=\normalbaselineskip
\lineskiplimit=-\maxdimen
\ifTSD@rightmargin@
\TSD@macro@format@right{#1}%
\else
\TSD@macro@format@left{#1}%
\fi
\xdef\TSD@prevgraf{\the\prevgraf}%
}%
}%
}
% #1 is the macro/enviroment; it has already been \string:ed.
\def\TSD@macro@format@right#1{%
\leftskip=\z@\@plus 1fill\relax
\hskip-\leftskip
\rightskip=\z@\@plus\fontdimen\tw@\font\relax
\parfillskip=\z@\@plus 1fil\relax
\TSD@one@letter@words{#1}%
\@@par
}
\def\TSD@macro@format@left#1{%
\hskip\z@\@plus 1fill\relax
\leftskip=\z@skip
\rightskip=\z@\@plus\fontdimen\tw@\font\relax
\parfillskip=\z@\@plus 1fil\relax
\TSD@one@letter@words{#1}%
\@@par
}
\def\TSD@letter@space{\hskip\z@skip}
\def\TSD@one@letter@words#1{\TSD@one@letter@words@i#1\relax}
\def\TSD@one@letter@words@i#1{%
\ifx#1\relax\else
#1\TSD@letter@space
\expandafter\TSD@one@letter@words@i
\fi
}
\newcounter{MacroEnvironment}
\setcounter{MacroEnvironment}{0}
\def\TSD@correct@side{%
\begingroup
\edef\@tempa{%
\write\@auxout{%
\if@twoside
\ifodd\c@page
\noexpand\TSD@correct@odd
\else
\noexpand\TSD@correct@even
\fi
\else
\noexpand\TSD@correct@even
\fi{\the\c@MacroEnvironment}%
}%
}%
\@tempa
\endgroup
}
\def\TSD@correct@odd#1{%
\if@twoside
\ifodd\c@page
\@percentchar
\else
\string\TSD@nameglet{TSD@#1}\string\@secondoftwo
\fi
\else
\string\TSD@nameglet{TSD@#1}\string\@secondoftwo
\fi
}
\def\TSD@correct@even#1{%
\if@twoside
\ifodd\c@page
\string\TSD@nameglet{TSD@#1}\string\@firstoftwo
\else
\@percentchar
\fi
\else
\@percentchar
\fi
}
\def\TSD@nameglet#1{\global\expandafter\let\csname#1\endcsname}
\long\def\m@cro@#1#2{\endgroup
\topsep\MacroTopsep
\trivlist
\setlength\labelsep{\z@}%
\refstepcounter{MacroEnvironment}%
\@ifundefined{TSD@\the\c@MacroEnvironment}{%
\if@twoside
\ifodd\c@page
\TSD@rightmargin@true
\else
\TSD@rightmargin@false
\fi
\else
\TSD@rightmargin@false
\fi
}{%
\@nameuse{TSD@\the\c@MacroEnvironment}%
\TSD@rightmargin@true \TSD@rightmargin@false
}%
\edef\saved@macroname{\string#2}%
\if@inlabel
\def\@tempa{{%
\noexpand\MacroFont
\dimen@=\macro@line@cnt\baselineskip
\advance\dimen@ \macro@cnt\jot
\vskip\dimen@
}}%
\else
\let\@tempa\@empty
\macro@cnt\z@
\fi
\edef\makelabel##1{%
\noexpand\hb@xt@\z@{%
\ifTSD@rightmargin@
\hskip\textwidth\hskip\marginparsep
\else
\hss
\fi
\vtop to\z@{\noexpand\null
\vskip-\baselineskip\@tempa
\hbox{\noexpand\TSD@correct@side##1}%
\vss
}%
\ifTSD@rightmargin@
\hss
\else
\hskip\marginparsep
\fi
}%
}%
\edef\@tempa{%
\noexpand\item[%
#1%
\noexpand\PrintMacroName
\else
\noexpand\PrintEnvName
\fi
{\string#2}%
]%
}%
\@tempa
\advance\macro@cnt \@ne
\advance\macro@line@cnt \TSD@prevgraf\relax
\global\advance\c@CodelineNo\@ne
#1%
\SpecialMainIndex{#2}\nobreak
\DoNotIndex{#2}%
\else
\SpecialMainEnvIndex{#2}\nobreak
\fi
\global\advance\c@CodelineNo\m@ne
\ignorespaces
}
\def\Describe@Macro#1{\endgroup
\marginpar%
[%
\TSD@rightmargin@false\noindent
\PrintDescribeMacro{#1}]%
{%\tracingmacros=\@ne
\TSD@rightmargin@true\noindent
\PrintDescribeMacro{#1}}%
\SpecialUsageIndex{#1}%
\@esphack\ignorespaces
}
\def\Describe@Env#1{\endgroup
\marginpar%
[\TSD@rightmargin@false\noindent
\PrintDescribeEnv{#1}]%
{\TSD@rightmargin@true\noindent
\PrintDescribeEnv{#1}}%
\SpecialEnvIndex{#1}%
\@esphack\ignorespaces
}
% The \noindent:s are necessary, since \marginpar forms a \vtop, not an
% \hbox. This is important if \PrintDescribeMacro/Env starts with \raise.
\let\ifTSD@setpdimens\relax
\let\TSD@setpdimenstrue\relax
\let\TSD@setpdimensfalse\relax
\endinput
|
