意大利语多语症在需要“

Question

鉴于此序言：

\documentclass{article}
\usepackage{fontspec}
\usepackage{polyglossia}
\usepackage{mathtools}
\usepackage{tikz}

\setdefaultlanguage{italian}
\usetikzlibrary{patterns}

我尝试编译（XeLaTeX）这张 TikZ 图片：

\begin{document}
\begin{tikzpicture}[line width=0.5pt, >=latex, scale=2]
  \coordinate (O) at (0,0);
  \path (O)++(0,4) coordinate ["left:$y$"] (y);
  \draw [-stealth, thin] (O)--++(4,0) coordinate ["below:$x$"] (x);
  \draw [stealth- , thin](y) -- (O);
  \draw [thin] (-0.5,0) -| (0,-0.5);
  \coordinate (v1) at (1.5,2);
  \path (2,0.5) coordinate (v2) ++(v1) coordinate (I);
  \path [pattern=north west lines, pattern color=red] (O)--(v1)--(I)--(v2)--(O);
  \draw [->] (O)--(v1); \draw [dashed, ->] (v1)--(I);
  \draw [->] (O)--(v2); \draw [dashed, ->] (v2)--(I);
  \node [anchor=north west, font=\footnotesize] at (v2) {${
  \begin{bmatrix}
    a_{12} \\ a_{22}
  \end{bmatrix}
  }$};
  \node [anchor=south east, font=\footnotesize] at (v1) {${
  \begin{bmatrix}
    a_{11} \\ a_{21}
  \end{bmatrix}
  }$};
\end{tikzpicture}
\end{document}

但我收到以下错误：

./submit tex stack.tex:14: Package pgfkeys Error: I do not know the key '/tikz/"left:$y$"' and I am going to ignore it. Perhaps you misspelled it.

我认为这是由于 polyglossia 处理意大利语中的“ ”的方式造成的。我尝试通过切换到以下方式来摆脱它：

\setdefaultlanguage[babelshorthands=true]{italian}

但之后我无法编译（实际上，GUI 中的齿轮不会停止），所以我没有收到任何报告。这是错误还是我做错了什么？

Answer 1

您使用的语法也需要该quotes库。您还应该加载该babel库。

\documentclass{article}

\usepackage{fontspec}
\usepackage{polyglossia}

\usepackage{mathtools}
\usepackage{tikz}
\usetikzlibrary{patterns,quotes,babel}

\setdefaultlanguage{italian}

\begin{document}
\begin{tikzpicture}[line width=0.5pt, >=latex, scale=2]
  \coordinate (O) at (0,0);
  \path (O)++(0,4) coordinate ["left:$y$"] (y);
  \draw [-stealth, thin] (O)--++(4,0) coordinate ["below:$x$"] (x);
  \draw [stealth- , thin](y) -- (O);
  \draw [thin] (-0.5,0) -| (0,-0.5);
  \coordinate (v1) at (1.5,2);
  \path (2,0.5) coordinate (v2) ++(v1) coordinate (I);
  \path [pattern=north west lines, pattern color=red] (O)--(v1)--(I)--(v2)--(O);
  \draw [->] (O)--(v1); \draw [dashed, ->] (v1)--(I);
  \draw [->] (O)--(v2); \draw [dashed, ->] (v2)--(I);
  \node [anchor=north west, font=\footnotesize] at (v2) {${
  \begin{bmatrix}
    a_{12} \\ a_{22}
  \end{bmatrix}
  }$};
  \node [anchor=south east, font=\footnotesize] at (v1) {${
  \begin{bmatrix}
    a_{11} \\ a_{21}
  \end{bmatrix}
  }$};
\end{tikzpicture}
\end{document}