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\def 中的换行符

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\def 中的换行符

我无法解决我的问题。我有定义：

\def\mfTitle{askdj asldj asdlk jhasd kjhaslkjd asdas}

我想在其中添加一个换行符：

\def\mfTitle{askdj asldj asdlk \newline jhasd kjhaslkjd asdas}

但我收到一个错误：

! Undefined control sequence.
\@normalcr ->\let \reserved@e 
                              \relax \let \reserved@f \relax \@ifstar {\let ...
l.20 ...fined\relax\else\pdfinfo{ /Title (\mfTitle
                                                  ) /Author (\mfAuthor) /Cre...

有没有简单的方法可以做到？谢谢

编辑 用法\mfTitle：

\documentclass[12pt]{book}
\usepackage{slovak}
\usepackage{epsfig}
\usepackage{color}
\usepackage{url}
\usepackage[utf8]{inputenc}

\renewcommand\baselinestretch{1.3} % riadkovanie jeden a pol

% pekne pokope definujeme potrebne udaje
\def\mftitle{Názov Práce}
\def\mfthesistype{Diplomová alebo neviem aká práca}
\def\mfauthor{Študent Autor}
\def\mfadvisor{Dr. Evorubač, ZLe.Sa.}
\def\mfplacedate{Bratislava, 2008}

\ifx\pdfoutput\undefined\relax\else\pdfinfo{ /Title (\mftitle) /Author (\mfauthor) /Creator (PDFLaTeX) } \fi

\begin{document}

\frontmatter

\thispagestyle{empty}

\noindent
\begin{minipage}{0.20\textwidth}
\includegraphics[width=0.9\textwidth]{komlogo-new}
\end{minipage}
\begin{minipage}{0.79\textwidth}
\begin{center}
\sc asd asdasd \\
asd asd, asd a asd \\
asd asd, asd
\end{center}
\end{minipage}

\vfill
\begin{center}
\begin{minipage}{0.8\textwidth}
\hrule
\bigskip\bigskip
\centerline{\LARGE\sc\mftitle}
\smallskip
\centerline{(\mfthesistype)}
\bigskip
\bigskip
\centerline{\large\sc\mfauthor}
\bigskip\bigskip
\hrule
\end{minipage}
\end{center}
\vfill
{\bf Vedúci:} \mfadvisor
\hfill\mfplacedate
\eject % EOP i

\thispagestyle{empty}~\vfill\eject % EOP ii

{~}\vspace{12cm}

\noindent
\begin{minipage}{0.25\textwidth}~\end{minipage}
\begin{minipage}{0.68\textwidth}
Čestne prehlasujem, že som túto diplomovú prácu vypracoval(a) samostatne s použitím citovaných zdrojov.

\bigskip\bigskip

\hfill\hbox to 6cm{\dotfill}
\end{minipage}
\vfill\eject % EOP iii
~\vfill\eject % EOP iv

\tableofcontents

\mainmatter

\input 01intro.tex
\input 02dalej.tex

\backmatter

\nocite{*}
\bibliographystyle{alpha}
\bibliography{literatura}

\end{document}

答案1

首先你不应该使用\def, 但是\newcommand. 问题是\newline当传递给 时毫无意义\pdfinfo。

无论如何，你应该使用\\而不是\newline。不过，想法是一样的。

该\ifx\pdfoutput\undefined测试已过时，不会区分 DVI 或 PDF 输出。请改用包\ifpdf中的测试ifpdf。

\documentclass{article}

\usepackage{ifpdf}

\newcommand\mfTitle{askdj asldj asdlk\\ jhasd kjhaslkjd asdas}
\newcommand\mfAuthor{Dusan Plavak}

\ifpdf
\begingroup
\renewcommand{\\}{}% temporarily disable \\
\pdfinfo{ /Title (\mfTitle) /Author (\mfAuthor) /Creator (PDFLaTeX) }
\endgroup
\fi

\begin{document}
\title{\mfTitle}
\author{\mfAuthor}

\maketitle

\end{document}

在此处输入图片描述

这是您的（非常糟糕的）模板的一个可能更好的版本。选择demo只是graphicx因为我没有您的徽标；该包epsfig已过时。也slovak已过时，最好使用babel。为了便于参考，我使用了hyperref，它知道 UTF-8（使用\pdfinfo您将无法获得正确的结果）。

\documentclass[12pt]{book}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[slovak]{babel}
\usepackage[demo]{graphicx} % the demo option is just because I don't have the logo
\usepackage{color}
\usepackage{url}
\usepackage{ifpdf}
\usepackage{emptypage}
\usepackage{hyperref}

\linespread{1.3} % riadkovanie jeden a pol

% pekne pokope definujeme potrebne udaje
\def\mftitle{Názov\\ Práce}
\def\mfthesistype{Diplomová alebo neviem aká práca}
\def\mfauthor{Študent Autor}
\def\mfadvisor{Dr. Evorubač, ZLe.Sa.}
\def\mfplacedate{Bratislava, 2008}

\ifpdf
  \hypersetup{
    pdftitle=\mftitle,
    pdfauthor=\mfauthor,
    pdfcreator=PDFLaTeX,
   }
\fi

\begin{document}

\frontmatter

\thispagestyle{empty}

\noindent
\includegraphics[width=0.18\textwidth]{komlogo-new}
\begin{minipage}{0.79\textwidth}
\centering
\sc asd asdasd \\
asd asd, asd a asd \\
asd asd, asd
\end{minipage}

\vfill
\begin{center}
\rule{0.8\textwidth}{0.4pt}

\bigskip\bigskip

{\LARGE\scshape\mftitle\par}

\smallskip

{(\mfthesistype)}

\bigskip\bigskip

{\large\scshape\mfauthor}

\bigskip\bigskip

\rule{0.8\textwidth}{0.4pt}
\end{center}
\vfill
{\bfseries Vedúci:} \mfadvisor
\hfill\mfplacedate
\cleardoublepage % EOP i


\vspace*{12cm}

\noindent
\begin{minipage}{0.68\textwidth}

Čestne prehlasujem, že som túto diplomovú prácu vypracoval(a) 
samostatne s použitím citovaných zdrojov.

\bigskip\bigskip

\hspace*{\fill}\makebox[6cm]{\dotfill}
\end{minipage}

\tableofcontents

\mainmatter

% Next lines are commented because I don't have the files
%\input{01intro.tex}
%\input{02dalej.tex}

\backmatter

\nocite{*}
\bibliographystyle{alpha}
\bibliography{literatura}

\end{document}

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