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latexdiff 与 align 环境

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latexdiff 与 align 环境

我有一个文件old.tex

\documentclass{article}
\usepackage{amsmath}
\newcommand{\nn}{\\}

\begin{document}
\begin{align}
x^2\nn
x^3
\end{align}
\end{document}

和一个文件new.tex

\documentclass{article}
\usepackage{amsmath}
\newcommand{\nn}{\\}

\begin{document}
text
\end{document}

如果我跑latexdiff --exclude-safecmd="nn" old.tex new.tex > diff.tex，我会得到diff.tex

\documentclass{article}
%DIF LATEXDIFF DIFFERENCE FILE
%DIF DEL old.tex   Wed Dec  8 13:48:59 2021
%DIF ADD new.tex   Wed Dec  8 13:34:53 2021
\usepackage{amsmath}

\newcommand{\nn}{\\}
%DIF PREAMBLE EXTENSION ADDED BY LATEXDIFF
%DIF UNDERLINE PREAMBLE %DIF PREAMBLE
\RequirePackage[normalem]{ulem} %DIF PREAMBLE
\RequirePackage{color}\definecolor{RED}{rgb}{1,0,0}\definecolor{BLUE}{rgb}{0,0,1} %DIF PREAMBLE
\providecommand{\DIFadd}[1]{{\protect\color{blue}\uwave{#1}}} %DIF PREAMBLE
\providecommand{\DIFdel}[1]{{\protect\color{red}\sout{#1}}}                      %DIF PREAMBLE
%DIF SAFE PREAMBLE %DIF PREAMBLE
\providecommand{\DIFaddbegin}{} %DIF PREAMBLE
\providecommand{\DIFaddend}{} %DIF PREAMBLE
\providecommand{\DIFdelbegin}{} %DIF PREAMBLE
\providecommand{\DIFdelend}{} %DIF PREAMBLE
\providecommand{\DIFmodbegin}{} %DIF PREAMBLE
\providecommand{\DIFmodend}{} %DIF PREAMBLE
%DIF FLOATSAFE PREAMBLE %DIF PREAMBLE
\providecommand{\DIFaddFL}[1]{\DIFadd{#1}} %DIF PREAMBLE
\providecommand{\DIFdelFL}[1]{\DIFdel{#1}} %DIF PREAMBLE
\providecommand{\DIFaddbeginFL}{} %DIF PREAMBLE
\providecommand{\DIFaddendFL}{} %DIF PREAMBLE
\providecommand{\DIFdelbeginFL}{} %DIF PREAMBLE
\providecommand{\DIFdelendFL}{} %DIF PREAMBLE
%DIF LISTINGS PREAMBLE %DIF PREAMBLE
\RequirePackage{listings} %DIF PREAMBLE
\RequirePackage{color} %DIF PREAMBLE
\lstdefinelanguage{DIFcode}{ %DIF PREAMBLE
%DIF DIFCODE_UNDERLINE %DIF PREAMBLE
  moredelim=[il][\color{red}\sout]{\%DIF\ <\ }, %DIF PREAMBLE
  moredelim=[il][\color{blue}\uwave]{\%DIF\ >\ } %DIF PREAMBLE
} %DIF PREAMBLE
\lstdefinestyle{DIFverbatimstyle}{ %DIF PREAMBLE
    language=DIFcode, %DIF PREAMBLE
    basicstyle=\ttfamily, %DIF PREAMBLE
    columns=fullflexible, %DIF PREAMBLE
    keepspaces=true %DIF PREAMBLE
} %DIF PREAMBLE
\lstnewenvironment{DIFverbatim}{\lstset{style=DIFverbatimstyle}}{} %DIF PREAMBLE
\lstnewenvironment{DIFverbatim*}{\lstset{style=DIFverbatimstyle,showspaces=true}}{} %DIF PREAMBLE
%DIF END PREAMBLE EXTENSION ADDED BY LATEXDIFF

\begin{document}

\DIFdelbegin \begin{align*}
\DIFdel{x^2\nn
x^3
}\end{align*}%DIFAUXCMD
\DIFdelend \DIFaddbegin \DIFadd{text
}\DIFaddend 

\end{document}

编译不通过。我以为该--exclude-safecmd标志会告诉latexdiff我输出如下内容

....
\DIFdel{x^2}\nn
\DIFdel{x^3
}
....

这样\nn命令就不在里面了\DIFdel{}。我可以以不同的方式运行命令来获取编译的输出吗？

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