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KaTeX does not work #12

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BohuTANG opened this issue Oct 15, 2019 · 2 comments
Closed

KaTeX does not work #12

BohuTANG opened this issue Oct 15, 2019 · 2 comments

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@BohuTANG
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Hi reuixiy,

meme is so cool for me, thank guys!
But there is an issue about KaTeX in my markdown(I'm New At Web...) with meme lastest version:

  1. the single line mode works fine here:
$$x^2 + y^2 = 1$$
  1. this mode dost not work(copy from https://katex.org/docs/support_table.html)
$$\begin{darray}{cc}
   a & b \\
   c & d
\end{darray}$$

outputs are:

\begin{array}{cc} a & b
c & d \end{array}

But it works well in test.html:

<!DOCTYPE html>
<!-- KaTeX requires the use of the HTML5 doctype. Without it, KaTeX may not render properly -->
<html>
  <head>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.11.0/dist/katex.min.css" crossorigin="anonymous">
 
    <!-- The loading of KaTeX is deferred to speed up page rendering -->
    <script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.0/dist/katex.min.js" crossorigin="anonymous"></script> 
 
    <!-- To automatically render math in text elements, include the auto-render extension: -->
    <script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.0/dist/contrib/auto-render.min.js"  crossorigin="anonymous"
        onload="renderMathInElement(document.body);"></script> 
  </head>
<body>
$$
\begin{darray}{cc}
   a & b \\
   c & d
\end{darray}
$$
    <script>
      renderMathInElement(
          document.getElementById("test"),
          {
              delimiters: [
                  {left: "$$", right: "$$", display: true},
                  {left: "\\[", right: "\\]", display: true},
                  {left: "$", right: "$", display: false},
                  {left: "\\(", right: "\\)", display: false}
              ]
          }
      );
    </script>
  </body>
</html>

Thanks！
@reuixiy
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reuixiy commented Oct 15, 2019

Hi @BohuTANG,

This problem is caused by the syntax conflict between Markdown and LaTeX. To solve that, you need to add some backslashes to escape some characters. For example:

  1. _ -> \_
  2. \\ -> \\\\
  3.  $$\begin{darray}{cc}
    a & b \\\\
    c & d
 \end{darray}$$

Also, make sure you have enabled KaTeX in that post’s Front Matter (katex: true or katex = true) and added the following code in config.toml:

[blackfriday]
extensionsmask = ["hardLineBreak", "backslashLineBreak"]

For more information, see: https://gohugo.io/content-management/formats/#issues-with-markdown

@BohuTANG
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Thanks, all it works now.
You save me, today.

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@BohuTANG @reuixiy