缩进代码而不添加不必要的空格

Question

我喜欢缩进代码以提高可读性（谁不喜欢呢？）。但这似乎会干扰 LaTeX（LaTeX 认为缩进就是空格）：

如何缩进代码而不添加不需要的空格？

\documentclass{article}
\usepackage{lipsum}
\usepackage{xparse}

\makeatletter

\NewDocumentCommand{\ImUnreadible}{ss+m+m}{\IfBooleanTF{#1}{\IfBooleanTF{#2}{#4}{#3}}{Let me check...}}

\NewDocumentCommand{\ImReadable}{ss+m+m}{
  \IfBooleanTF{#1}{%
    \IfBooleanTF{#2}{%
      %% We force the display of the big text
      #4
    }{% We force the display of the small text
      #3
    }
  }{%
    Let me check...
  }
}
\makeatother

\begin{document}
\noindent A\ImUnreadible*{Short}{Long}B.\\
A\ImReadable*{Short}{Long}B.\\
\end{document}

Answer 1

不是缩进导致额外的空格，而是行尾的尾随空格导致的。为了避免这种情况，请用 结束宏定义行%（例外：如果一行代码以控制序列结尾，则%不需要尾随）。

\documentclass{article}
\usepackage{lipsum}
\usepackage{xparse}

\makeatletter

\NewDocumentCommand{\ImUnreadible}{ss+m+m}{\IfBooleanTF{#1}{\IfBooleanTF{#2}{#4}{#3}}{Let me check...}}

\NewDocumentCommand{\ImReadable}{ss+m+m}{%
  \IfBooleanTF{#1}{%
    \IfBooleanTF{#2}{%
      %% We force the display of the big text
      #4%
    }{% We force the display of the small text
      #3%
    }%
  }{%
    Let me check...%
  }%
}
\makeatother

\begin{document}
\noindent A\ImUnreadible*{Short}{Long}B.\\
A\ImReadable*{Short}{Long}B.\\
\end{document}