我有以下显示的类文件：
%
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{puseniorthesis}
[2008/05/02 v1.4.1 Princeton University Thesis class]
\RequirePackage{setspace}
\RequirePackage{zref-totpages}
%report type option
\newif\if@progress
\@progressfalse
\DeclareOption{progress}{\@progresstrue}
%copy type option
\newif\if@filecopy
\@filecopyfalse
\DeclareOption{filecopy}{\@filecopytrue}
\newif\if@advisercopy
\@advisercopyfalse
\DeclareOption{advisercopy}{\@advisercopytrue}
\newif\if@readercopy
\@readercopyfalse
\DeclareOption{readercopy}{\@readercopytrue}
%abstract
\long\def\@abstract{\@latex@error{No \noexpand\abstract given}\@ehc}
%frontmatter numbered with roman numerals, mainmatter with arabic
\newcommand*{\frontmatter}{
\pagenumbering{roman}
}
\newcommand*{\mainmatter}{\pagenumbering{arabic}}
\newcommand*{\backmatter}{\pagenumbering{Roman}}
\newcommand*{\makelot}{}
\newcommand*{\makelof}{}
\newcommand*{\makelos}{}
\newcommand*{\begincmd}{
\onehalfspacing
\frontmatter\maketitlepage\makecopyrightpage\makeabstract
\makeacknowledgements\makededication\tableofcontents\clearpage
\makelot\clearpage\makelof\clearpage\makelos
\clearpage\mainmatter
\renewcommand{\baselinestretch}{1.5}
}
%define required vars
\def\@deptpref{Department of}
\def\departmentprefix#1{\gdef\@deptpref{#1}}
\def\classyear#1{\gdef\@classyear{#1}}
\def\adviser#1{\gdef\@adviser{#1}}
\def\reader#1{\gdef\@reader{#1}}
\def\dept#1{\gdef\@dept{#1}}
\def\submitdate#1{\gdef\@submitdate{#1}}
\long\def\acknowledgements#1{\gdef\@acknowledgements{#1}}
\def\course#1{\gdef\@course{#1}}
%define optional vars
\def\dedication#1{\gdef\@dedication{#1}}
\def\extranotes#1{\gdef\@extranotes{#1}}
\extranotes{}
%title page
\newcommand{\maketitlepage}{{
\thispagestyle{empty}
\sc
\vspace*{0in}
\begin{center}
\LARGE \@title
\end{center}
\vspace{.1in}
\begin{center}
\large \@author,~\@classyear
\end{center}
\vspace{.3in}
\begin{center}
Submitted to the\\
\@deptpref~\@dept\\
Princeton University \\
in partial fulfillment of the requirements of\\
Undergraduate Independent Work.\\
\vspace{.3in}
\if@progress
Progress Report\\
\else
Final Report\\
\fi
\vspace{.3in}
\@submitdate
\end{center}
\vfill
% \begin{flushright}
\hangindent=11.5cm\hangafter=0
\noindent\@adviser\\
\@reader\\
\@course\\
\ztotpages \, pages\\
\if@filecopy
File Copy
\fi
\if@advisercopy
Adviser Copy
\fi
\if@readercopy
reader Copy
\fi
\ifx\@extranotes\@empty
\relax
\else
\\ \@extranotes\\
\fi
% \end{flushright}
\clearpage
}}
%copyright page
\newcommand*{\makecopyrightpage}{
\thispagestyle{empty}
\vspace*{0in}
\begin{center}
\copyright\ Copyright by \@author, \number\year. \\
All Rights Reserved
\end{center}
This \if@progress progress report
\else
thesis
\fi
represents my own work in accordance with University regulations.
%\vspace{1in}
%\@author \hspace{0.5cm} \makebox[2in]{\hrulefill}
\clearpage}
\newcommand*{\makeabstract}{
\newpage
\addcontentsline{toc}{section}{Abstract}
\begin{center}
\Large \textbf{Abstract}
\end{center}
\@abstract
\clearpage
}
%acknowledgements
\def\makeacknowledgements{
\ifx\@acknowledgements\undefined
\else
\addcontentsline{toc}{section}{Acknowledgements}
\begin{center}
\Large \textbf{Acknowledgements}
\end{center}
\@acknowledgements
\clearpage
\fi
}
%dedication page
\def\makededication{
\ifx\@dedication\undefined
\else
\vspace*{1.5in}
\begin{flushright}
\@dedication
\end{flushright}
\clearpage
\fi
}
%various optional lists
\DeclareOption{myorder}{
\renewcommand*{\begincmd}{
\onehalfspacing
}}
\DeclareOption{lot}{\renewcommand*{\makelot}{
\addcontentsline{toc}{section}{List of Tables}\listoftables}}
\DeclareOption{lof}{\renewcommand*{\makelof}{
\addcontentsline{toc}{section}{List of Figures}\listoffigures}}
\DeclareOption{los}{
\renewcommand*{\makelos}{
\newcommand*\l@symbol{\@dottedtocline{1}{1.5em}{3.5em}}
\addtocontents{los}{\protect\addvspace{10\p@}}%
\chapter*{List of Symbols\@mkboth {LIST OF SYMBOLS}{LIST OF SYMBOLS}}
\@starttoc{los}
\addcontentsline{toc}{section}{List of Symbols}
}
}
\def\addsymbol#1#2{%
\addtocontents{los}{\protect \contentsline {symbol}{\protect \numberline {#1}{\ignorespaces #2}}{\thepage}}
}
%inherits report class and associated options
\DeclareOption*{\PassOptionsToClass{\CurrentOption}{report}}
\ProcessOptions
%% Not necessary to specify the point size - we inherit it from above
%% \LoadClass[12pt]{report}
\LoadClass{report}
\setlength{\oddsidemargin}{.5in} %{.4375in}
\setlength{\evensidemargin}{.5in} %{.4375in}
\setlength{\topmargin}{-.5in} %{-.5625in}
\setlength{\textheight}{9in}
\setlength{\textwidth}{6in}
\long\def\abstract#1{\gdef\@abstract{#1}}
\AtBeginDocument{\begincmd}
\endinput
%%
%% End of file `puthesis.cls'.
问题是，当我尝试做一件简单的事情时，\usepackage{color}我遇到了这样的问题：
! Undefined control sequence.
\set@color ...\@pdfcolorstack push{\current@color
}\aftergroup \reset@color
l.55 \begin{document}
但是，当我仅对文件执行以下操作时，article.cls没有任何问题：
\documentclass{article}
\usepackage{listings}
\usepackage{color}
\usepackage{textcomp}
\definecolor{listinggray}{gray}{0.9}
\definecolor{lbcolor}{rgb}{0.9,0.9,0.9}
\lstset{
language=c,
basicstyle=\scriptsize,
upquote=true,
aboveskip={1.5\baselineskip},
columns=fullflexible,
showstringspaces=false,
extendedchars=true,
breaklines=true,
showtabs=false,
showspaces=false,
showstringspaces=false,
identifierstyle=\ttfamily,
keywordstyle=\color[rgb]{0,0,1},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{0.627,0.126,0.941},
}
\begin{document}
\begin{lstlisting}
#include <stdio.h>
int main()
{
// A line comment
printf("A really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, REALLY long line. && & \n");
return 0;
}
\end{lstlisting}
\end{document}
puseniorthesis.cls那么我需要添加一些什么以使color包正常工作吗？
编辑：我使用的导致错误的确切代码在这里；
\documentclass[lof,lot,los,12pt,advisercopy]{puseniorthesis}
%options to class:
% lof - generate list of figures
% lot - generate list of tables
% Xpt - font size
% filecopy - note that this is 'File Copy' on title page
% advisercopy - note that this is 'Adviser Copy' on title page
% readercopy - note that this is 'Reader Copy' on title page
% progress - change title page to say 'Progress Report' instead of 'Final Report'
\usepackage{graphicx} %need for \includegraphics
\usepackage{amsmath}
\usepackage{listings}
\usepackage{color}
\usepackage{textcomp}
\definecolor{listinggray}{gray}{0.9}
\definecolor{lbcolor}{rgb}{0.9,0.9,0.9}
\lstset{
language=c,
basicstyle=\scriptsize,
upquote=true,
aboveskip={1.5\baselineskip},
columns=fullflexible,
showstringspaces=false,
extendedchars=true,
breaklines=true,
showtabs=false,
showspaces=false,
showstringspaces=false,
identifierstyle=\ttfamily,
keywordstyle=\color[rgb]{0,0,1},
commentstyle=\color[rgb]{0.133,0.545,0.133},
stringstyle=\color[rgb]{0.627,0.126,0.941},
}
%required inputs:
\author{My Name}
\classyear{`13}
\adviser{My Adviser}
\reader{My Reader}
\title{Thesis Title}
\dept{Mechanical and Aerospace Engineering}
\submitdate{May 2, 2013}
\course{MAE something}
\abstract{\input abstract} %read from file abstract.tex
%optional inputs (any of these can be omitted)
\extranotes{These are a few lines of optional notes}
\dedication{To myself.}
\acknowledgements{Thank you very much.}
\numberwithin{equation}{section}
\begin{document}
%\include{ch1} %read from file ch1.tex
%\include{ch2} %read from file ch2.tex
%\appendix
%\include{app1} %read from file app1.tex
\end{document}
答案1
该类用于\AtBeginDocument排版。但这是不允许的，摘自《LaTeX Companion》第二版第 884 页：
但请注意，钩子中的代码
\AtBeginDocument是前言的一部分。因此，限制了可以放在那里的内容；特别是，不能进行排版。
在这种情况下，包color尚未完成设置，即定义\defaultcolor。排版代码调用\normalcolor分配\current@color给尚未定义的\defaultcolor。
解决方法：
\let\savedbegincmd\begincmd
\let\begincmd\relax
\begin{document}
\savedbegincmd
可以通过更改线路来修复该类
\AtBeginDocument{\begincmd}
到
\RequirePackage{etoolbox}
\AfterEndPreamble{\begincmd}
使用包中更合适的钩子etoolbox。