我按照书上的方法写了这段代码,并遵循了所有步骤。你能告诉我如何修复这个问题吗?

我按照书上的方法写了这段代码,并遵循了所有步骤。你能告诉我如何修复这个问题吗?
\documentclass[a4paper,12pt]{article}
\usepackage[margin=2cm]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{ucs}
\usepackage{xltxtra}
\defaultfontfeatures{Mapping=tex-text}
\XeLaTeXlinebreaklocale "khm"
\XeLaTeXlinebreakskip​​ =0pt plus 1pt minus 1pt
\setmainfont[Scale=0.84,Script=Khmer]{Khmer OS System}
\setmathrm{Time New Roman}
\newcommand{\en}{\fontspec{Time New Roman}\selectfont}
\newcommand{\kos}{\fontspec[Scale=0.84,Script=Khmer]{Khmer OS System}\selectfont}
\newcommand{\kml}{\fontspec[Scale=0.84,Script=Khmer]{Khmer OS Moul Light}\selectfont}
\begin{document}
    សរសេរអត្ថបទនៅទីនេះ
\end{document}

答案1

\XeLaTeXlinebreaklocale 未定义,我假设您\XeTeXlinebreaklocale 也打算在 XeTeXlineskip 设置中使用一些不可见的零宽度空格字符。

对于我来说,这运行没有错误,除了由于我没有字体而出现字体错误。

\documentclass[a4paper,12pt]{article}
\usepackage[margin=2cm]{geometry}

%no \usepackage[T1]{fontenc}
%no \usepackage[utf8]{inputenc}

% avoid \usepackage{ucs}
% avoid \usepackage{xltxtra}
\usepackage{fontspec}

% default \defaultfontfeatures{Mapping=tex-text}

% typo\XeLaTeXlinebreaklocale "khm"
\XeTeXlinebreaklocale "khm"

%typo \XeLaTeXlinebreakskip​​ also zero width spaces U+200B
% \XeTeXlinebreakskip​​ 0pt plus 1pt minus 1pt
\XeTeXlinebreakskip = 0pt plus 1pt minus 1pt

\setmainfont[Scale=0.84,Script=Khmer]{Khmer OS System}
\setmathrm{Time New Roman}
\newcommand{\en}{\fontspec{Time New Roman}\selectfont}
\newcommand{\kos}{\fontspec[Scale=0.84,Script=Khmer]{Khmer OS System}\selectfont}
\newcommand{\kml}{\fontspec[Scale=0.84,Script=Khmer]{Khmer OS Moul Light}\selectfont}
\begin{document}
    សរសេរអត្ថបទនៅទីនេះ
\end{document}

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