[comp.text.tex] the latest manpage.sty

rchen@m.cs.uiuc.edu (11/28/90)

/* Written  1:17 pm  Nov 27, 1990 by rchen@m.cs.uiuc.edu in m.cs.uiuc.edu:comp.lang.c++ */
/* ---------- "the latest manpage.sty" ---------- */
This is the latest version of manpage.sty.  It is basically the
same as the one I put on the net last week, but the code is
much cleaner and I added the parameter auto indentation feature
(see the comments bellow).  The \dq macro is removed (use \" instead).

I hope I won't update manpage.sty as frequent again.  Enjoy.
A copy of this file and cprog.sty will be at clarkson archives soon.

-Rong Chen

--------------------------- manpage.sty ------------------------------
% MANPAGE DOCUMENT STYLE -- Created 25 May 1990, Updated 25 November 1990
% manpage.sty

% Rong Chen (rchen@cs.uiuc.edu)
% Department of Computer Science
% University of Illinois at Urbana-Champaign
% Urbana, IL 61801

% Copyright (c) 1990 by Rong Chen 
% Permission to copy all or part of this work is granted, provided
% that the copies are not made or distributed for resale, and that
% the copyright notice and this notice are retained.
% 
% THIS WORK IS PROVIDED ON AN "AS IS" BASIS.  THE AUTHOR PROVIDES NO
% WARRANTY WHATSOEVER, EITHER EXPRESS OR IMPLIED, REGARDING THE WORK,
% INCLUDING WARRANTIES WITH RESPECT TO ITS MERCHANTABILITY OR FITNESS
% FOR ANY PARTICULAR PURPOSE.

% This style option is designed to work with both report and article
% document styles of LaTeX version 2.09.
% The author uses \documentstyle[11pt,twoside,manpage]{report}
% 
% This LaTeX style file is similar to the UNIX troff man macros in format and
% is specially tuned for documenting the C++ library that the author wrote.
%
% The commands that are created in the style file are:
%
% \begin{manpage}{Title}{Module}{Version}  % see an example, all will be clear
%                 % latex supplies the current date if no \date{} is specified
% \end{manpage}   % end of manpage environment
% \variable{#1}  (e.g., \variable{int foo}) % with \medskip added
% \variable*{#1} (e.g., \variable*{int bar})% no extra spacing
% \function{#1}  (e.g., \function{void demo(int dummy)}) % with \medskip added
% \function*{#1} (e.g., \function*{void demo(int dummy)})% no extra spacing
% \subtitle{#1}  (e.g., \subtitle{AUTHOR}) % fit in the same line if possible
% \subtitle*{#1} (e.g., \subtitle*{AUTHOR})% always break a newline
% "#1"           (e.g., "dummy_variable")  % argument is in italic&unbreakable
% \separator		% draw a thin line to separate subtitle from the text
% \header{#1}{#2}{#3}	% in case you want to have a header and 
% \footer{#1}{#2}{#3}	% a footer outside of the manpage environment
%
% In the \function macro, data types and their dummy arguments are separated
% by a space. So if you have a function like "int f(const int n)", you should
% document it as \function{int f(const~int n)}.  The argument n is optional.
% In the \subtitle macro, two lines of text may be divided by "\\".
%
% The following characters (control-sequents) are defined (or redefined) as:
%
% \" --- print the double quote character ("), use $\ddot{\rm#1}$ for accent
% \~ --- defined as $\sim$ being raised 0.6ex, use $\tilde{\rm#1}$ for accent
% \* --- the same as $\ast$
% \< --- the same as $\langle$
% \> --- the same as $\rangle$
% <  --- the same as $<$
% >  --- the same as $>$
% _  --- the same as \_,  use $\sb{#1}$ for subscript (see TeXbook pp. 135)
% +  --- the same as $+$
% |  --- the same as $\mid$
% ^  --- {\small $\wedge$} being raised 0.6ex, superscript is now $\sp{#1}$
% "  --- the same as {\tt "} when outside of the manpage environment,
%        otherwise use \" instead

\headheight 24pt                    % see the LaTeX book for definitions
\headsep 12pt
\textwidth 6.25in
\textheight 8.0in
\topmargin 0in
\marginparwidth 0pt
\oddsidemargin 0pt
\evensidemargin 0pt
\marginparsep 0pt
\parindent 0pt
\parskip 10pt plus 1pt

\newdimen\funindent \funindent 0pt % indentation for function/variable entries
\newdimen\argindent \argindent -1pt % indentation for function arguments

% when \argindent >= 0pt, subsequent lines of arguments have fixed indentation
% i.e., \argindent (e.g., 3em).  See the following example:
%       int foo ( int x, int y, int w,
%             int h, char a, char b,
%             char c, char d )
%
% when \argindent < 0pt (value doesn't matter), arguments are auto-indented:
%       int foo ( int x, int y, int w,
%                 int h, char a, char b,
%                 char c, char d )

% \tableofcontents and \chapter macros are also modified in manpage.sty.
% The standard LaTeX \tableofcontents couldn't handle \chapter* correctly.
% In the table of contents each manpage has the same indentation as a section.
% Chapter titles have smaller font and they are pushed to the right margin.

% > From: Vick Khera <khera@cs.duke.edu>
% > one more thing you may like... we have this cprog.sty style
% > (formatting of C programs, by \'Eamonn McManus <emcmanus@cs.tcd.ie>)
% > that lets you place C, C++, Pascal, and Modula-2 source code in your
% > LaTeX source directly. no more verbatim mode, which i think is ugly
% > for C code.  just be sure to include it *before* you include manpage.sty
% > or things break.  i don't know why, but i can live with it:
% > \documentstyle[cprog,manpage]{report} will do the trick. then just replace
% > those pesky \begin{verbatim}\end{verbatim} with \begin{cprog}\end{cprog}
% > and it looks much better.  i also like to put after the \documentstyle
% > the command \let\ctextfont=\sf so the code is typeset in the \sf font
% > to differentiate it from normal text.
% (you may do the same with \let\ccommentfont=\sl and \let\cstringfont=\sf)

% the latest versions of manpage.sty and manpage-sample.tex are saved
% at the clarkson archives, sun.soe.clarkson.edu (128.153.12.3).
% the files are in /pub/latex-style directory for anonymous ftp.
% cprog.sty should also be there.  check it out.

% If you make any improvements, I'd like to hear about them.
%
% STOP STOP STOP -- comments end here :-(

\newcommand{\header}[3]{\gdef\@header{{#1}{#2}{#3}}}
\newcommand{\footer}[3]{\gdef\@footer{{#1}{#2}{#3}}}

\def\separator{\rule{\linewidth}{0.5pt}}

\catcode`\"=\active
\def\arg@quote#1"{\hbox{\it #1\/}}
\def\tt@quote{\hbox{\tt \char34}}
\let"=\tt@quote
\let\"=\tt@quote

\def\variable{\pagebreak[3]\@ifstar{\var@star}{\var@norm}}
\def\var@star#1{\expandafter\print@var#1\@@\\ }
\def\var@norm#1{\expandafter\print@var#1\@@\medskip\\ }

\def\print@var#1\@@{\expandafter\parse@var#1 =\@@}
\def\parse@var#1=#2\@@{
  \print@name#1\@@
  \ifx #2\@nil\else{\unskip\rm\ \(=\)\ }\strip@eq#2\fi
}

\def\function{\pagebreak[3]\@ifstar{\@func@star}{\@func@norm}}
\def\@func@star#1{\expandafter\@function#1 \\ }
\def\@func@norm#1{\expandafter\@function#1 \medskip\\ }

\newdimen\arg@dim         % temp variables that you don't want to know
\newdimen\arg@indent
\newdimen\line@siz
\newbox\arg@box

\def\@function#1(#2)#3 {
  \expandafter\print@name#1 \@@
  \setbox\arg@box=\hbox{\rm\ \((\)\ }%
  \global\advance\arg@dim\wd\arg@box
  \unskip\box\arg@box
  \edef\@fortmp{#2}%
  \ifx\@fortmp\@empty {\rm \()\)#3}\else
    \setbox\arg@box=\hbox{\rm\ \()\);}%
    \global\line@siz\linewidth \global\advance\line@siz-\wd\arg@box
    \ifdim\argindent<0pt
      \global\arg@indent\arg@dim \else\global\arg@indent\argindent\fi
    \def\@comma{}%
    \@for\@tempa:=#2\do{%   
      \setbox\arg@box=\hbox{\@comma}%
      \global\advance\arg@dim\wd\arg@box
      \unskip\@comma\def\@comma{\nobreak,\penalty-\@m\ }%
      \expandafter\print@arg\@tempa\@@
    }%
    \unskip\nobreak\hbox{\rm\ \()\)#3}%
  \fi
}

\def\print@name#1#2 #3\@@{%
  \edef\tmp@name{#3}%
  \ifx\tmp@name\@empty
    \setbox\arg@box=\hbox{\bf #1#2}%
    \else\setbox\arg@box=\hbox{\rm #1#2 \bf #3\unskip}\fi
  \global\arg@dim\funindent \global\advance\arg@dim\wd\arg@box
  \unskip\hspace{\funindent}\box\arg@box
}

\def\print@arg#1\@@{\expandafter\print@type#1 \@@}

\def\print@type#1#2 #3\@@{%
  \setbox\arg@box=\hbox{{\rm #1#2}%
    \ifx #3\@nil\else\expandafter\print@dummy#3=\@@\fi
    \unskip\/}%
  \global\advance\arg@dim\wd\arg@box
  \ifdim\arg@dim>\line@siz
    \global\arg@dim\arg@indent \global\advance\arg@dim\wd\arg@box
    \hfill\penalty-\@m\hbox{}\kern\arg@indent\fi
  \box\arg@box
}

\def\print@dummy#1=#2\@@{%
  \edef\tmp@name{#1}\def\a@space{ }%
  \ifx\tmp@name\a@space\else
    {\unskip\it\ #1\/}%
    \ifx #2\@nil\else{\unskip\rm\ \(=\)\ }\strip@eq#2\fi
  \fi
}

\def\strip@eq#1={\rm \expandafter\ignorespaces#1\unskip}

\def\subtitle{\pagebreak[3]\@ifstar{\@subtit@star}{\@subtit@norm}}

\def\@subtit@star#1{
  \item[\hbox{\large\bf\begin{tabular}[t]{l}#1\end{tabular}}\hfill]
  \hfil\par
  \expandafter{\let\par=\space\ignorespaces\let\par=\endgraf}
}

\def\@subtit@norm#1{
  \setbox\arg@box=\hbox{\large\bf\begin{tabular}[t]{l}#1\end{tabular}}
  \ifdim \wd\arg@box > \labelwidth \item[\copy\arg@box\hfill]\hfil\par
  \else \dp\arg@box=0pt \item[\copy\arg@box\hfill] \fi
  \expandafter{\let\par=\space\ignorespaces\let\par=\endgraf}
}

\newenvironment{manpage}[3]{\@beginManpage#1\@@#2\@@#3\@@}{\@endManpage}

\def\@beginManpage#1\@@#2\@@#3\@@{
  \pagestyle{headings}
  \addcontentsline{toc}{section}{#2}
  \clearpage
  \gdef\@header{{#2}{#1}{#2}}
  \gdef\@footer{{#3}{\thepage}{\@date}}
  \begin{list}{}{
    \setlength\labelwidth{1.2in}
    \setlength\leftmargin{\labelwidth}
    \addtolength\leftmargin{\labelsep}
    \topsep  5pt plus 2pt minus 2pt
    \itemsep 5pt plus 2pt minus 2pt
    \parsep 10pt plus 2pt minus 2pt
  }
  \raggedbottom
  \let"=\arg@quote
}

\def\@endManpage{
  \end{list} \clearpage \flushbottom
  \let"=\tt@quote
}

\def\@first#1#2#3{#1}
\def\@second#1#2#3{#2}
\def\@third#1#2#3{#3}

\def\ps@headings{
  \def\@oddhead{\parbox{\textwidth}{
    {\rm\ \ \expandafter\@first\@header\hfill
      \expandafter\@second\@header\hfill
      \expandafter\@third\@header\ \ } \\[.1cm]
    \hbox{}\rule[12pt]{\textwidth}{1pt}
  }}
  \def\@evenhead{\parbox{\textwidth}{
    {\rm\ \ \expandafter\@third\@header\hfill
      \expandafter\@second\@header\hfill
      \expandafter\@first\@header\ \ } \\[.1cm]
    \hbox{}\rule[12pt]{\textwidth}{1pt}
  }}
  \def\@oddfoot{\parbox{\textwidth}{
    \hbox{}\rule{\textwidth}{1pt} \\[.1cm]
    {\sl\ \ \expandafter\@first\@footer\hfill
      \rm\expandafter\@second\@footer\hfill
      \sl\expandafter\@third\@footer\ }
  }}
  \def\@evenfoot{\parbox{\textwidth}{
    \hbox{}\rule{\textwidth}{1pt} \\[.1cm]
    {\sl\ \ \expandafter\@third\@footer\hfill
      \rm\expandafter\@second\@footer\hfill
      \sl\expandafter\@first\@footer\ }
  }}
}

\gdef\@header{{}{}{}}
\gdef\@footer{{}{}{}}

\def\tableofcontents{\@restonecolfalse
  \newskip\@savskip \@savskip=\parskip
  \parskip 0pt plus 1pt
  \clearpage \thispagestyle{plain} \global\@topnum\z@ \@afterindentfalse
  \@makeschapterhead{{Contents\@mkboth{CONTENTS}{CONTENTS}}}
  \@afterheading \@starttoc{toc}
  \parskip=\@savskip
}

\def\@makechapterhead#1{
  \vspace*{50pt}
  { \raggedleft
    \Large\bf Chapter \thechapter \par \vskip 15pt
    \huge\bf #1\par
    \nobreak \vskip 30pt
  }
}

\def\@makeschapterhead#1{ 
  \vspace*{50pt}
  { \raggedleft 
    \huge\bf #1\par
    \nobreak \vskip 30pt 
  }
}

\def\@schapter#1{
  \addcontentsline{toc}{chapter}{#1}
  \@makeschapterhead{#1} 
  \@afterheading
}

\catcode`\<=\active \def\mit@less{\hbox{\(\char60\)}} \let<=\mit@less
\catcode`\>=\active \def\mit@more{\hbox{\(\char62\)}} \let>=\mit@more
\def\<{\(\langle\)}
\def\>{\(\rangle\)}
\def\*{\(\ast\)}
\def\~{\(\raise.6ex\hbox{\(\sim\)}\)}
% \catcode`\_=\active \def_={\hbox{\kern.1em\vbox{\hrule width.3em}}}
\catcode`\_=\active \global\let_=\_
\def\mit@wedge{\hbox{\raise.6ex\hbox{\small \(\wedge\)}}}
\catcode`\^=\active \let^=\mit@wedge
\catcode`\+=\active \def\mit@add{\hbox{\(\char43\)}} \let+=\mit@add
\catcode`\|=\active \def\mit@mid{\hbox{\(\mid\)}} \let|=\mit@mid

-------------------------- manpage-sample.tex ---------------------
\documentstyle[11pt,twoside,manpage]{report}
\begin{document}

\date{November 25, 1990}

\begin{titlepage}
    \vspace*{1.0in}
    \begin{flushright}
          {\huge\bf OIM C++ Library} \\[.25cm]
          {\rule[.1in]{4.5in}{.02in}}\\[.25cm]
          {\large\bf Reference Manual} \\[2.0cm]
          {\large\bf Version 1.0} \\[4.0cm]
          {\bf Rong Chen}\\
          {\bf Junsheng Long}\\[1.0cm]
          {Research Services}\\
          {Office for Information Management}\\
          {1407 W. Gregory Drive}\\
          {Urbana, IL 61801}\\
          {(217)--244--8538}\\
    \end{flushright}
\end{titlepage}

\pagenumbering{roman}
\tableofcontents

\chapter*{Preface}

The Object-oriented problem solving and object-oriented programming 
represent a way of thinking and a methodology for computer
programming that are quite different from the traditional approaches 
supported by structured programming languages. The powerful 
features of object-oriented programming support the concepts that 
make computer problem solving a more human-like activity and 
that increase the re-usability of software code. As object-oriented
languages are steadily available, object-oriented programming
becomes more and more popular among both system developers 
and application programmers.

C++ is a hybrid language that fuses object-oriented functionality
with the features of a traditional and efficient structured language, C. 
C++ provides programmers and problem solvers object-oriented capability
without loss of run-time or memory efficiency. In addition,
C++ is available in almost every computer systems from PC to mainframe.

\newpage

\raggedbottom
\pagenumbering{arabic}
\pagestyle{headings}
\chapter*{Class Descriptions}

\begin{manpage}{OIM C++ Library}{Choice}{Version 1.0}

\subtitle{Name}
    Choice --- a set of boxes representing the choices available. 

\subtitle{Declaration}
    \#include \<choice.h\>

\function{Choice(Point origin, Point corner,
		int foreground_color, int background_color,
		int frame_style, int space_in_between,
                int number_of_choices,
                const~char\* first_label, $...$ )}
    Constructs a choice object.  Each choice object is a set of boxes
    representing the choices available.  "Origin" and "corner" define the
    rectangular area inside which the boxes are displayed. 
    The "space_in_between" (in pixels)
    defines the distance between two adjacent boxes.  Depending on 
    whether there is enough room to put all the choices horizontally
    or vertically in the designated area,
    the choices will be laid out accordingly.  The
    attributes "foreground_color", "background_color" and "frame_style"
    define the colors for each box that represents each choice.
    The number of labels starting with "first_label" must match the
    number given by "number_of_choices".  Each label is displayed within
    its corresponding box.  The choices are displayed 
    as soon as they are created.

\function{Choice(int number_of_choices, Boolean is_horizontal = VERTICAL)}
    Constructs an array of choices or 
    a choice object with boxes of different sizes.  The attributes
    of the actual choices will be defined later using the
    addItem() operation. Note: It is forbidden to have arguments
    in the constructors of array objects in C++. 

\function{\~Choice()}
    Choice class has an empty destructor.

\subtitle{Description}
    A Choice object is a set of related boxes. It is used to display
    multiple choices on the screen. 
    A choice may either be selected by pressing a hot key
    (when mouse is not enabled) or by pressing a mouse button when the mouse
    cursor is within the intended choice box.  
    The first highlighted character in the text label will be the 
    hot key if the mouse is not enabled, otherwise, the highlighted
    character will have no effect. For example, label "@N@ext" designates
    "N" as the hot key for the button if the mouse is not enabled.
    By default, if the mouse driver is loaded before program execution,
    the mouse is enabled.  When using the mouse to select
    a choice, the selection is immediate; a hot key must be confirmed
    by pressing ENTER (carriage return key).  Arrow keys can also be used
    to move the current selection in the direction indicated by the arrows,
    this also requires an ENTER to confirm.

\subtitle{Global \\ Variables}
\variable{char host_name[20] = \"rose.cs.uiuc.edu\"}
    The "host_name" buffer is initialized to the current machine name
    before the main() function is executed.  The machine name is
    usually declared in a DOS shell variable "OIMUSER".

\variable{Boolean mouse_installed}
    By default, the "mouse_installed" variable is assigned to TRUE if
    the mouse driver has been installed before program execution;
    otherwise it is assigned to FALSE.  The value may also be changed
    through enableMouse() and disableMouse() functions.

\subtitle{Macros}
\function{MAX({\it x}, {\it y})}
    Returns the maximum of the two comparable objects "x", and "y".
    This macro is often used to compare integers or real numbers.

\function{MIN({\it x}, {\it y})}
    Returns the minimum of the two comparable objects "x", and "y".
    This macro is often used to compare integers or real numbers.

\subtitle{Public \\ Operations}
\function{void addItem(Point origin, Point corner,
		 int foreground_color, int background_color,
		 int frame_style, const~char\* label,
		 int text_color = WHITE,
		 int text_highlight_color = LIGHT_WHITE)}
    Defines the attributes of a choice box in the array declared by the
    Choice(int "number_of_choices", Boolean "is_horizontal" = VERTICAL) 
    constructor. It must be called exactly "number_of_choices"
    times.  The first call specifies the first choice, second call specifies
    the second choice, and so on.  The attributes "origin" and "corner"
    define a box area where the choice item is located on the screen.  Other
    attributes are self-explanatory.  This call is particularly useful
    on program setup pages.

\function{Boolean hasValue()}
    Returns TRUE if the designated choice object has been selected at
    least once.  Graphically,
    it means one of the choices is rendered in reverse colors.  It is
    sometimes necessary to check if all choice objects on a screen have
    been selected, so that a program can go on to the next page of screen.
    If a previous select() call is returned abnormally by pressing an ESC key,
    this function will return FALSE. Should this occur, the previous 
    value, if any, will also be lost.

\subtitle{Virtual \\ Operations}

\function{void action(int status)}
    Defines the behaviors of the choice object when a choice handler
    has been bonded to the object.  This function is called by the
    event handler when it detects that the choice object has been
    selected.  The default action is to do nothing if no choice handler
    presents, otherwise, it invokes the choice handler 
    and passes it along with the current status 
    (whatever has been returned from a status() call).  
    Do not modify this function unless it is absolutely necessary because
    it redefines the semantics of all choice objects.

\function{void bind(void \hbox{\rm (\*{\it handler})(int)})}
    Associates a choice handler function with the choice object.  Every
    time this choice object is invoked, the choice handler is called
    immediately.  
    The handler is passed along with the current "status"
    (return value of status() call) as its argument. The default 
    action taken by the event handler can be modified by changing
    the next function action().

\function{Boolean isSelected(Point cursor)}
    Returns TRUE if a legal hot key is pressed for the
    the indicated choice object. It also returns TRUE if 
    a mouse button is pressed within the range of the choice object area.
    This call is used by the event handler to check if this choice object
    has been selected.  It is hardly needed in regular applications.
    The "cursor" is for mouse cursor in mouse mode or faked with the
    current keyboard input as the cursor's x coordinate.

\subtitle{See Also}
     Event, Button, Box

\subtitle{Author}
    Ron Chen at the Office for Information Management, UIUC. 9-1-89.

\end{manpage}
\newpage
\begin{verbatim}
    /* EXAMPLE 2 */
    #include <stdlib.h>
    #include "choice.h"

    void handler1(int pick) {
        Box box(500, 30, 600, 60, LIGHT_CYAN, LIGHT_MAGENTA);
        box << pick + 1;
    }

    void handler2(int pick) {
        Box box(500, 30, 600, 60, LIGHT_CYAN, LIGHT_MAGENTA);
        box << (pick==0 ? "Ape" : (pick==1 ? "Bob" : "Car"));
    }

    void handler3(int pick) {
        Box box(500, 30, 600, 60, LIGHT_CYAN, LIGHT_MAGENTA);
        switch (pick) {
            case 0: box << "D"; break; case 1: box << "E"; break;
            case 2: box << "F"; break; case 3: box << "G"; break;
            case 4: exit(0);
        }
    }

    main() {
        Point a(100, 100), b(220, 130);
        Choice c1(a, b, BROWN, RED, ON_BORDER, 0, 4,
                       "@1@", "@2@", "@3@", "@4@");
        Choice c2(3, HORIZONTAL);
        c2.addItem(Point(200, 200), Point(260,230),
                   WHITE, BLUE, IN_BORDER, "@A@pe");
        c2.addItem(Point(270, 200), Point(330,230),
                   WHITE, BLUE, IN_BORDER, "@B@ob");
        c2.addItem(Point(340, 200), Point(400,230),
                   WHITE, BLUE, IN_BORDER, "@C@ar");
        a = Point(500, 230); b = Point(550, 330);
        Choice c3(a, b, GREEN, GRAY, NO_BORDER, 10, 5,
                       "@D@", "@E@", "@F@", "@G@", "@H@");
        c1.bind(handler1);
        c2.bind(handler2);
        c3.bind(handler3);
        Event::waitForEvents();
    }
\end{verbatim}

\end{document}
/* End of text from m.cs.uiuc.edu:comp.lang.c++ */