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exam.cls
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exam.cls
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% exam.cls
%
% A LaTeX2e document class for preparing exams.
%% exam.cls
%% Copyright (c) 1994, 1997, 2000, 2004, 2008 Philip S. Hirschhorn
%% Copyright (c) 2013, 2015, 2024 Raphaël Beamonte <[email protected]>
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
% http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2003/12/01 or later.
%
% This work has the LPPL maintenance status "author-maintained".
%
% This work consists of the files exam.cls and examdoc.tex.
% The user's guide for exam.cls is in the file examdoc.tex.
%%% Philip Hirschhorn
%%% Department of Mathematics
%%% Wellesley College
%%% Wellesley, MA 02481
% The newest version of this documentclass should always be available
% from my web page: http://www-math.mit.edu/~psh/
\def\fileversion{2.403}
\def\filedate{2024/01/06}
%---------------------------------------------------------------------
%---------------------------------------------------------------------
%
% If there's some feature that you'd like that this file doesn't
% provide, tell me about it.
%
%
%
%
%
% Thanks to:
%
% Piet van Oostrum, from whose excellent ``fancyheadings.sty'' we
% shamelessly stole most of the code for setting the headers and
% footers.
%
% Mate Wierdl <[email protected]>, who contributed the
% code so that if the number of points is ``1'', then the default
% value of \pointname will print ``1 point'' instead of ``1 points''.
%
% Tom Brikowski <[email protected]>, who contributed the code for
% making the number of points and number of questions available as
% macros (as well as the idea of putting the number of points in a
% box, instead of in parentheses). (I changed his code to make this
% all optional, so if there are errors there, it's my fault and not
% his.)
%
% Ottmar Beucher <[email protected]>, Dan Drake
% <[email protected]>, and Justus Piater <[email protected]> who
% contributed ideas and code for the \pointsofquestion and \gradetable
% commands for printing a Grading Table. (I changed all the code to
% make this compatible with hyperref.sty, so if there are errors there,
% it's my fault and not theirs.)
%
% Justus Piater <[email protected]>, who contributed the code for
% the solution environment. (I changed his code to allow page breaks
% inside solutions so, once again, if it's buggy, it's my fault.)
%
% Donald Arseneau <[email protected]>, who created the excellent
% ``framed.sty'' and generously allowed me to include basically the
% whole thing in exam.cls, making the few changes needed for it to
% work well with question environments:
% framed.sty v 0.8a 21-Jul-2003
% Copyright (C) 1992-2003 by Donald Arseneau
% These macros may be freely transmitted, reproduced, or modified
% provided that this notice is left intact.
%
%--------------------------------------------------------------------
%--------------------------------------------------------------------
% Changelog since version 2.3:
%--------------------------------------------------------------------
% Version 2.403, 2024/01/06:
%
% Fix a bug in the counting of the quarter, half and threequarter
% points, which did not account for potential total points being
% fractional.
%
% Version 2.402, 2015/02/10:
%
% Add the new \quarter and \threequarter commands to add .25 and .75
% notation for questions and show 1/4 and 3/4 fractions in the
% document
%
% New commands:
% - \usedecimalquarter
% \usedecimalhalf
% \usedecimalthreequarter
% To use decimal values (.25, .5 and .75) instead of
% fractions in the document.
% - \useslantedquarter
% \useslantedthreequarter
% Same use as \useslantedhalf but for \quarter and
% \threequarter
% - \usehorizontalquarter
% \usehorizontalthreequarter
% Same use as \usehorizontalhalf but for \quarter and
% \threequarter
% - \usehorizontalfrac
% \useslantedfrac
% \usedecimalfrac
% To set the use of horizontal, slanted or decimal for
% all of \quarter, \half and \threequarter at the same
% time.
%
%--------------------------------------------------------------------
% Version 2.401, 2013/11/27:
%
% Change the use of plural and singular for the points name as
% '1 and a half point' should stay singular. Plural now starts
% from 2.
%
%--------------------------------------------------------------------
% Version 2.4, 2011/05/22:
%
% No longer betatest.
%
%--------------------------------------------------------------------
% Version 2.321$\beta$, 2011/05/15:
%
% New environments: EnvUplevel and EnvFullwidth
%
% The EnvUplevel environment is similar to the command \uplevel,
% except that \uplevel is a command taking one argument. The
% EnvUplevel environment has the advantage that you can include
% verbatim material (using, e.g., the \verb command) in the
% environment. (You can't include verbatim material in the argument
% of an \uplevel command.)
%
% The EnvFullwidth environment is similar to the command \fullwidth,
% except that \fullwidth is a command taking one argument. The
% EnvFullwidth environment has the advantage that you can include
% verbatim material (using, e.g., the \verb command) in the
% environment. (You can't include verbatim material in the argument
% of a \fullwidth command.)
%
%--------------------------------------------------------------------
% Version 2.320$\beta$, 2011/04/16:
%
% New document class options: cancelspace
% nocancelspace
% New commands: \cancelspace
% \nocancelspace
%
% Using the document class option cancelspace is equivalent to giving
% the command \cancelspace at the beginning of the file. The default is
% \nocancelspace. Thus, the document class option nocancelspace has no
% effect, but is there to avoid errors if a user is confused.
%
% If the user uses the document class option cancelspace and if
% solutions are not being printed, then any space that would be added by
% an optional argument to the solution, solutionorbox, solutionorlines,
% or solutionordottedlines environments will not be added.
%
% If solutions are being printed (because the user used the document
% class option answers or gave the command \printanswers), then the
% option cancelspace (and the command \cancelspace) will have no
% effect.
%
%--------------------------------------------------------------------
% Version 2.319$\beta$, 2011/04/11:
%
% We fixed an obscure bug, in which if the user gives a \qformat
% command, in which case they shouldn't want to give a \droppoints
% command, but they *do* give a \droppoints command, there is an
% error (\padded@point@block undefined).
%
%--------------------------------------------------------------------
% Version 2.318$\beta$, 2011/04/05:
%
% \qformat and \bonusqformat are now totally independent.
% That is: \qformat doesn't affect bonus questions, and \noqformat
% no longer cancels \bonusqformat.
%
% New command: \nobonusqformat
% \nobonusqformat does for \bonusqformat what \noqformat does for
% \qformat.
%
%--------------------------------------------------------------------
% Version 2.317$\beta$, 2011/04/02:
%
% We changed the definition of \numcoverpages so that on the first run
% of latex (when \exam@lastcoverpage isn't yet defined), \numcoverpages
% will expand to
% 0\mbox{\normalfont\bf ??}
% instead of
% \mbox{\normalfont\bf ??}
% so that the construction \romannumeral\numcoverpages will not generate
% an error on the first run of latex.
%
% We also made changes and corrections to comments.
%
%--------------------------------------------------------------------
% Version 2.316$\beta$, 2010/12/22:
%
%
% New commands:
%
% \pointsinrange{rangename}
% \bonuspointsinrange{rangename}
%
% If `rangename' is the name of a grading range defined using
% \begingradingrange{rangename} and \endgradingrange{rangename}, then
% \pointsinrange{rangename} expands to the number of points in that
% grading range and \bonuspointsinrange{rangename} expands to the number
% of bonus points in that grading range.
% We also changed the checkboxes and oneparcheckboxes environments so
% that, when solutions are being printed, a \CorrectChoice will be
% printed with \CorrectChoiceEmphasis (along with the \checkedchar
% that marks the \CorrectChoice). This brings the behavior in line
% with that of the choices and oneparchoices environments.
%
%--------------------------------------------------------------------
% Version 2.315$\beta$, 2010/12/21:
%
% New commands:
%
% \settabletotalpoints
% \settabletotalbonuspoints
%
% Each of those takes one argument. After giving the command
% \settabletotalpoints{numpoints}, any grade or point table (partial
% or full) will list the total points as numpoints instead of the
% actual total number of points in the table.
%
% After giving the command \settabletotalbonuspoints{numbonuspoints},
% any grade or point table will list the total bonus points as
% numbonuspoints instead of the actual total number of bonus points in
% the table.
%
% These commands are intended for exams in which students are asked to
% do some subset of the problems, but not all of them, and so the
% total number of points possible is less than the sum of the points
% for all of the questions.
%
%
% To have one of these commands affect only a single table, confine the
% command and the \gradetable command inside of a group, as in
%
% \begingroup
% \settabletotalpoints{100}
% \gradetable[v][questions]
% \endgroup
%
% or even just
%
% \begin{center}
% \settabletotalpoints{100}
% \gradetable[v][questions]
% \end{center}
%
%--------------------------------------------------------------------
% Version 2.314$\beta$, 2010/12/01:
%
% New user command:
%
% \addquestionobject
%
% This is for when some of a question spills onto the next page, but
% that page doesn't have any parts, subparts, subsubparts, or choices
% beginning on theat page (which means that the \ifincomplete command
% won't know that any of that question is on that page). If you say
% \addquestionobject at the very end of the question, it will write a
% questionobject to the .aux file so that \ifincomplete will work
% correctly.
%
% New commands used only internally:
%
% \first@questionobject
% \questionobject@pluspagecheck
%
% These were just to clean up some of the internal code.
%
%--------------------------------------------------------------------
% Version 2.313$\beta$, 2010/02/18:
%
% Bug fix: When solutions are not being printed, the solution,
% solutionorlines, and solutionordottedlines environments disallow
% pagebreaks before the environment, which can pull the last line of
% the question (or part, or etc.) preceding the environment onto the
% next page, even when leaving a rather large space before the
% pagebreak. We insert
%
% \penalty 0
%
% to allow a pagebreak before the environment. We make no change to
% the solutionorbox environment, since it didn't have this problem.
%
%--------------------------------------------------------------------
% Version 2.312$\beta$, 2010/01/17:
%
% New commands:
%
% \combinedgradetable
% \combinedpointtable
% \partialcombinedgradetable
% \partialcombinedpointtable
%
% These are similar to \gradetable, \pointable, \bonusgradetable,
% \bonuspointtable, \partialgradetable, \partialpointtable,
% \partialbonusgradetable, and \partialbonuspointtable except that
% these new commands list both the points and the bonus points.
%
% \partialcombinedgradetable and \partialcombinedpointtable take one
% required argument, which is the name of the grading range. All four
% of these commands take two optional arguments, the first being either
% ``v'' or ``h'' and the second being either ``questions'' or
% ``pages''. The possibilities are thus
%
% \combinedgradetable[v][questions]
% \combinedgradetable[v][pages]
% \combinedgradetable[h][questions]
% \combinedgradetable[h][pages]
% \partialcombinedgradetable{rangename}[v][questions]
% \partialcombinedgradetable{rangename}[v][pages]
% \partialcombinedgradetable{rangename}[h][questions]
% \partialcombinedgradetable{rangename}[h][pages]
%
% The defaults are ``v'' and ``questions''.
%
% The horizontal tables have separate rows for the points and bonus
% points. The vertical tables have separate columns for the points and
% bonus points.
%
% The default values for the words that appear in the tables are set by
% the commands
%
% \chqword{Question:}
% \chpgword{Page:}
% \chpword{Points:}
% \chbpword{Bonus Points:}
% \chsword{Score:}
% \chtword{Total}
% \cvqword{Question}
% \cvpgword{Page}
% \cvpword{Points}
% \cvbpword{Bonus Points}
% \cvsword{Score}
% \cvtword{Total:}
%
% The words in the table can be changed by giving any of these
% commands with the desired word as argument.
%
%--------------------------------------------------------------------
% Version 2.311$\beta$, 2010/01/10:
%
% New environment: oneparcheckboxes
%
% The oneparcheckboxes environment is to the checkboxes environment as
% the oneparchoices environment is to the choices environment. That is,
% each choice is begun with either a \choice or a \correctchoice
% command, and these will all be printed as a single paragraph. When
% answers are not being printed, each choice will have a label
% consisting of a box that the student can check, created by the
% argument to the last \checkboxchar command. The default value is
% created by the command
%
% \checkboxchar{$\bigcirc$}
%
% (Note the dollar signs, since \bigcirc can appear only in math
% mode.) When answers are being printed, then any choice created
% using the \correctchoice command will be labelled by the argument to
% the last \checkedchar command, the default value of which is created
% by the command
%
% \checkedchar{$\surd$}
%
%--------------------------------------------------------------------
% Version 2.310$\beta$, 2010/01/09:
%
% New command: \bonusqformat
%
% The \bonusqformat command takes one argument, with the same
% description as for the argument of the \qformat command.
%
% Note added 2011/04/05: Version 2.318$\beta$ changes the behavior so
% that \qformat and \bonusqformat are now completely independent!
%
% If the user gives a \qformat command, then the argument of that
% command is used to format both questions and bonusquestions. If,
% after giving the \qformat command, the user gives a \bonusqformat
% command, then the argument of the \bonusqformat command will be used
% to format bonus questions.
%
% Note: The \bonusqformat command must be given *after* the \qformat
% command, or else the \bonusqformat command will have no effect.
%
% Note: If the user hasn't given a \qformat command, then a
% \bonusqformat command will have no effect.
%
% Note: If the user gives a \qformat command and a \bonusqformat
% command, and then later says \noqformat, then the arguments of both
% the \qformat and \bonusqformat commands are no longer usable. That
% is, if the user later on once again says \qformat, and wants the bonus
% questions to have a different format from the questions, then another
% \bonusqformat command must be given.
%
% Note added 2011/04/05:: The above is changed in version 2.318$\beta$.
% \qformat and \bonusqformat are now completely independent.
% \noqformat cancels only \qformat, and the new command
% \nobonusqformat cancels \bonusqformat.
%
%--------------------------------------------------------------------
% Version 2.309$\beta$, 2009/11/30:
%
% New environment: checkboxes
% New commands: \checkboxeshook
% \checkboxchar
% \checkedchar
%
% The checkboxes environment is similar to the choices environment,
% except that choices are not numbered. Instead of numbers, each
% choice has a label consisting of a box that the student can check,
% created by the argument to the last \checkboxchar command. The
% default value is created by the command
%
% \checkboxchar{$\bigcirc$}
%
% (Note the dollar signs, since \bigcirc can appear only in math
% mode.) When answers are being printed, then any choice created
% using the \correctchoice command will be labelled by the argument to
% the last \checkedchar command, the default value of which is created
% by the command
%
% \checkedchar{$\surd$}
%
% The list parameters used in the checkboxes environment can be
% customized by redefining \checkboxeshook, the default value of which
% is empty. (This is similar to using \choiceshook to alter the
% choices environment.)
%
%--------------------------------------------------------------------
% Version 2.308$\beta$, 2009/11/26:
%
% We fixed a bug that caused \bonussubpart to act like \subpart and
% \bonussubsubpart to act like \subsubpart.
%
%--------------------------------------------------------------------
% Version 2.307$\beta$, 2009/06/11:
%
% We fixed a bug that arose only when there were cover pages and the
% first page of the cover pages used a different extraheadheight or
% extrafootheight from that used on the first page of the regular pages.
% The bug caused the first page of the regular pages to use the
% extraheadheight and extrafootheight intended only for the first cover
% page.
%
%--------------------------------------------------------------------
% Version 2.306$\beta$, 2009/03/28:
%
% We fixed a bug that arose only when the user used a figure or
% table environment that floated to the top of a page. If that
% happened, then a full page's worth of text was placed below
% the figure or table, makeing the text run over the footline and off
% the bottom of the page.
%
% We fixed this by commenting out several lines at the end of
% \@setheadheight and @setfootheight.
%
%--------------------------------------------------------------------
% Version 2.305$\beta$, 2009/01/30:
%
% We fixed a bug to keep page breaks from occurring inside of
% \makeemptybox. We also added \begingroup \endgroup for the off
% chance that someone was using box0 and didn't want us to change it.
%
% We also fixed a bug in the solutionorbox environment that showed
% itself when the user used \stretch in the optional argument.
%
%--------------------------------------------------------------------
% Version 2.304$\beta$, 2009/01/22:
%
% We rewrote the definition of \makeemptybox and the solutionorbox
% environment (created in version 2.303).
%
% The argument to \makeemptybox can now be either a length, or \fill, or
% \stretch{number}.
%
% The optional argument to the solutionorbox environment can also be
% either a length, or \fill, or \stretch{number}. If the optional
% argument is omitted, then no box is printed when printanswers is
% false.
%
% The minimum box height is \minboxheight, whose value is set by the
% command
%
% \setlength\minboxheight{.1in}
%
% This can be changed by giving a new setlength command, but it's not
% likely that anyone actually wants a box of height less than .1 inch.
%
%--------------------------------------------------------------------
% Version 2.303$\beta$, 2009/01/21:
%
% New command: \makeemptybox
% New environment: solutionorbox
%
% \makeemptybox takes one argument, which is a length, and it creates
% an empty box of width the length of the current line and of height
% equal to the argument. That is, the box extends from the current
% left margin (which depends on whether we're in a question, part,
% subpart, or subsubpart) to the right margin.
%
% The solutionorbox environment is similar to the solution
% environment, except that if printanswers is false and an optional
% argument is specified, then instead of leaving that much blank space
% we print an empty box of that height. The optional argument must be
% a dimension; it can not be \fill. If the optional argument is
% missing or equal to 0pt, then when printanswers is false we print
% nothing at all.
%
% Note: This is changed in version 2.304. As of that version, the
% argument can be a length, or \fill, or \stretch{number}.
%
%--------------------------------------------------------------------
% Version 2.302$\beta$, 2008/10/18:
%
% New commands: \numcoverpages and \totalnumpages
%
% \numcoverpages inserts the number of pages occupied by the
% coverpages environment. If there is no coverpages environment,
% it inserts 0.
%
% \totalnumpages inserts the sum of \numcoverpages and \numpages.
% Note that if there are pages preceding a coverpages environment, then
% those pages will not be counted by \totalnumpages.
%
% We also added \relax after some \ifnum comparisons and commented
% out some line endings to remove, e.g., an unwanted space inserted
% by \ifcontinuation when the page is a continuation.
%
%--------------------------------------------------------------------
% Version 2.301$\beta$, 2008/09/22:
%
% All solution, solutionorlines, and solutionordotteslines
% environments are now enclosed in a group which is begun
% with the argument of the command
%
% \SolutionEmphasis
%
% the default value of which is determined by the command
%
% \SolutionEmphasis{}
%
% That is, the default is that nothing is inserted.
% For example, if the command
%
% \SolutionEmphasis{\itshape\small}
%
% is used, the solutions will be set in italics, in small type.
%
%
% New command: \unframedsolutions
%
% This causes solutions to be printed as normal text, without any
% framing or shading. Anyone using this command should use the
% \SolutionEmphasis command so that the solutions will be
% distinguishable from the rest of the exam.
%
%--------------------------------------------------------------------
% Version 2.3, 2008/07/16:
%
% Minor typographic corrections to comments.
%
%--------------------------------------------------------------------
%--------------------------------------------------------------------
%--------------------------------------------------------------------
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{exam}[\filedate\space Version \fileversion\space by
Philip Hirschhorn]
\RequirePackage{ifthen}
\RequirePackage{xstring}
\newif\ifprintanswers
\printanswersfalse
\DeclareOption{answers}{\printanswerstrue}
\DeclareOption{noanswers}{\printanswersfalse}
\newif\ifcancelspace
\cancelspacefalse
\DeclareOption{cancelspace}{\cancelspacetrue}
\DeclareOption{nocancelspace}{\cancelspacefalse}
% The following keeps track of whether the user has requested that we
% add up the points on the exam. We make the default false so that
% users who put other than numbers into the points argument of a
% question (or part, or subpart) won't get error messages.
% We use \if@printtotalpoints as a flag to signal that we are counting
% points, so that we will know to print the total on the screen (and
% in the log file). We use this separate flag so that the user can
% use both \addpoints and \noaddpoints to count some points and not
% others, but still have the total printed when we finish the file no
% matter what the state of \if@addpoints.
\newif\if@addpoints
\newif\if@printtotalpoints
\def\addpoints{\global\@addpointstrue\global\@printtotalpointstrue}
\def\noaddpoints{\global\@addpointsfalse}
\@addpointsfalse
\@printtotalpointsfalse
\DeclareOption{addpoints}{\addpoints}
\DeclareOption*{%
\PassOptionsToClass{\CurrentOption}{article}%
}
\ProcessOptions\relax
\LoadClass{article}
% *****************
% ** PAGE LAYOUT **
% *****************
% We set the parameters in terms of \paperwidth and \paperheight
% so that the options
% a4paper
% a5paper
% b5paper
% letterpaper
% legalpaper
% executivepaper
% landscape
% will all work:
\setlength{\textwidth}{\paperwidth}
\addtolength{\textwidth}{-2in}
\setlength{\oddsidemargin}{0pt}
\setlength{\evensidemargin}{0pt}
\setlength{\headheight}{15pt}
\setlength{\headsep}{15pt}
\setlength{\topmargin}{0in}
\addtolength{\topmargin}{-\headheight}
\addtolength{\topmargin}{-\headsep}
\setlength{\footskip}{29pt}
\setlength{\textheight}{\paperheight}
\addtolength{\textheight}{-2.2in}
\setlength{\marginparwidth}{.5in}
\setlength{\marginparsep}{5pt}
%--------------------------------------------------------------------
% ****************
% ** EXTRAWIDTH **
% ****************
\newlength\@extrawidth
% \@rightmargin is needed for \pointsinrightmargin and
% \pointsdroppedatright, so that we can right justify the points:
\newlength\@rightmargin
\setlength{\@rightmargin}{1in}
% We put the argument of \extrawidth into a length so that it will
% work correctly even if it's negative:
\def\extrawidth#1{%
\@extrawidth=#1
\advance \textwidth by \@extrawidth
\divide\@extrawidth by 2
\advance\oddsidemargin by -\@extrawidth
\advance\evensidemargin by -\@extrawidth
% Bug fix, 13 April 2004:
%\advance\@rightmargin by \@extrawidth
\advance\@rightmargin by -\@extrawidth
}
%--------------------------------------------------------------------
%--------------------------------------------------------------------
% Making room for large headers and footers
% The following are used to save the effect of any changes to
% \topmargin and \textheight caused by \extraheadheight or
% \extrafootheight commands. They hold the values currently in effect.
% We put them into lengths so that it will work correctly even if the
% argument is negative:
\newlength\@extrahead
\newlength\@extrafoot
\setlength{\@extrahead}{0in}
\setlength{\@extrafoot}{0in}
% The following are used to hold the requested values for extrahead and
% extrafoot, first page and all pages after the first, and then the
% similar things requested for the cover pages:
\newlength\run@exhd
\newlength\fp@exhd
\newlength\run@exft
\newlength\fp@exft
\newlength\covrun@exhd
\newlength\covfp@exhd
\newlength\covrun@exft
\newlength\covfp@exft
\setlength{\run@exhd}{0in}
\setlength{\fp@exhd}{0in}
\setlength{\run@exft}{0in}
\setlength{\fp@exft}{0in}
\setlength{\covrun@exhd}{0in}
\setlength{\covfp@exhd}{0in}
\setlength{\covrun@exft}{0in}
\setlength{\covfp@exft}{0in}
\newcommand*\adj@hdht@ftht{%
\if@coverpages
\ifnum\value{page}=1\relax
\@setheadheight{\covfp@exhd}%
\@setfootheight{\covfp@exft}%
\else
\@setheadheight{\covrun@exhd}%
\@setfootheight{\covrun@exft}%
\fi
\else
\ifnum\value{page}=1\relax
\@setheadheight{\fp@exhd}%
\@setfootheight{\fp@exft}%
\else
\@setheadheight{\run@exhd}%
\@setfootheight{\run@exft}%
\fi
\fi
}
\newcommand*\extraheadheight{%
\@ifnextchar[{\@xtrahd}{\@ytrahd}%
}
\def\@xtrahd[#1]#2{%
\setlength{\fp@exhd}{#1}%
\setlength{\run@exhd}{#2}%
\adj@hdht@ftht
}
\def\@ytrahd#1{%
\setlength{\fp@exhd}{#1}%
\setlength{\run@exhd}{#1}%
\adj@hdht@ftht
}
\newcommand*\extrafootheight{%
\@ifnextchar[{\@xtraft}{\@ytraft}%
}
\def\@xtraft[#1]#2{%
\setlength{\fp@exft}{#1}%
\setlength{\run@exft}{#2}%
\adj@hdht@ftht
}
\def\@ytraft#1{%
\setlength{\fp@exft}{#1}%
\setlength{\run@exft}{#1}%
\adj@hdht@ftht
}
\newcommand*\coverextraheadheight{%
\@ifnextchar[{\cov@xtrahd}{\cov@ytrahd}%
}
\def\cov@xtrahd[#1]#2{%
\setlength{\covfp@exhd}{#1}%
\setlength{\covrun@exhd}{#2}%
\adj@hdht@ftht
}
\def\cov@ytrahd#1{%
\setlength{\covfp@exhd}{#1}%
\setlength{\covrun@exhd}{#1}%
\adj@hdht@ftht
}
\newcommand*\coverextrafootheight{%
\@ifnextchar[{\cov@xtraft}{\cov@ytraft}%
}
\def\cov@xtraft[#1]#2{%
\setlength{\covfp@exft}{#1}%
\setlength{\covrun@exft}{#2}%
\adj@hdht@ftht
}
\def\cov@ytraft#1{%
\setlength{\covfp@exft}{#1}%
\setlength{\covrun@exft}{#1}%
\adj@hdht@ftht
}
\def\@appendoutput#1{%
\output=\expandafter{\the\output #1}%
}
\@appendoutput{\adj@hdht@ftht}
%--------------------------------------------------------------------
% \@setheadheight and \@setfootheight:
\def\@setheadheight#1{%
\begingroup % Avoid trouble from using \@temp and \@spaces
% Reset the effect of the most recent change:
\global\advance\topmargin by -\@extrahead
\global\advance\textheight by \@extrahead
% Save the newly set value:
\def\@temp{#1}
\def\@spaces{ }
\ifx\@temp\@empty
\global\@extrahead=0in
\else
\ifx\@temp\@spaces
\global\@extrahead=0in
\else
\global\@extrahead=#1
\fi
\fi
% Set the new values:
\global\advance\topmargin by \@extrahead
\global\advance\textheight by -\@extrahead
% Make it take effect RIGHT NOW!:
% (The following stuff isn't necessary if \@setheadheight is
% executed only in the preamble or as we return from the output
% routine, but we're leaving it in so that this will still work if
% we use this at some random point in the middle of composing a
% page).
% Bugfix, Version 2.306beta, 2009/03/28:
% We don't do this!!
% If the user had a figure environment that floated to the
% top of a page, then this would cause that page to run
% over the footer and off the bottom of the page, because
% this somehow caused a full page's worth of stuff to be
% placed after the figure, as if the figure wasn't taking
% up space on the page.
% We *do* need to put \@colht at the correct new value, though,
% apparently because \@colht is set near the end of the
% output routine.
\global\@colht=\textheight
% \global\@colroom=\textheight
% \global\vsize=\textheight
% \global\pagegoal=\textheight
\endgroup
}
\def\@setfootheight#1{%
\begingroup % Avoid trouble from using \@temp and \@spaces
% Reset the effect of the most recent change:
\global\advance\textheight by \@extrafoot
% Save the newly set value:
\def\@temp{#1}
\def\@spaces{ }
\ifx\@temp\@empty
\global\@extrafoot=0in
\else
\ifx\@temp\@spaces
\global\@extrafoot=0in
\else
\global\@extrafoot=#1
\fi
\fi
% Set the new values:
\global\advance\textheight by -\@extrafoot
% Make it take effect RIGHT NOW!:
% (The following stuff isn't necessary if \@setfootheight is
% executed only in the preamble or as we return from the output
% routine, but we're leaving it in so that this will still work if
% we use this at some random point in the middle of composing a
% page).
% Bugfix, Version 2.306beta, 2009/03/28:
% We don't do this!!
% If the user had a figure environment that floated to the
% top of a page, then this would cause that page to run
% over the footer and off the bottom of the page, because
% this somehow caused a full page's worth of stuff to be
% placed after the figure, as if the figure wasn't taking
% up space on the page.
% We *do* need to put \@colht at the correct new value, though,
% apparently because \@colht is set near the end of the
% output routine.
\global\@colht=\textheight
% \global\@colroom=\textheight
% \global\vsize=\textheight
% \global\pagegoal=\textheight
\endgroup
}
%---------------------------------------------------------------------
%
% *************************
% ** HEADERS AND FOOTERS **
% *************************
%
% The pagestyles available are head, foot, headandfoot, and empty.
% \pagestyle{head} prints the head, and gives an empty foot.
% \pagestyle{foot} prints the foot, and gives an empty head.
% \pagestyle{headandfoot} prints both the head and the foot.
% \pagestyle{empty} gives an empty head and an empty foot.
%
% Pagestyles:
\newcommand*\ps@head{%
\@dohead
\@nofoot
}
\newcommand*\ps@headandfoot{%
\@dohead
\@dofoot
}
\newcommand*\ps@foot{%
\@nohead
\@dofoot
}
% \ps@empty is already defined by article.cls, so we'll
% say \def instead of \newcommand*:
\def\ps@empty{%
\@nohead
\@nofoot
}
\newif\if@coverpages
\@coverpagesfalse
\newcounter{num@coverpages}
% We'll set this to zero in case there is no coverpages environment:
\setcounter{num@coverpages}{0}
\newenvironment{coverpages}{%
\ifnum \value{numquestions}>0\relax
\ClassError{exam}{%
Coverpages cannot be used after questions have begun.\MessageBreak
}{%
All question, part, subpart, and subsubpart environments
\MessageBreak
must begin after the cover pages are complete.\MessageBreak
}%
\fi
\@coverpagestrue
\pagenumbering{roman}%
\adj@hdht@ftht
}{%
\clearpage
\setcounter{num@coverpages}{\value{page}}%
\addtocounter{num@coverpages}{-1}%
\pagenumbering{arabic}%
% Bugfix, Version 2.307\beta, 2009/06/11:
% We have to say \@coverpagesfalse before \adj@hdht@ftht
% because we're still inside the group created by the
% coverpages environment and we want to set the
% extraheadheight and extrafootheight to the values correct
% for the first non-cover page:
\@coverpagesfalse
\adj@hdht@ftht
}
\newcommand*\cover@question@error{%
\ClassError{exam}{%
No questions are allowed in the cover pages.\MessageBreak
}{%
All question, part, subpart, and subsubpart environments
\MessageBreak
must begin after the cover pages are complete.\MessageBreak
}%
}
\newcommand*\@dohead{%
\def\@oddhead{%
\if@coverpages
\ifnum\value{page}=1\relax
\cov@fullhead
\else
\covrun@fullhead