pandoc-katex
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xu-cheng
Support multiple \tag inside of AMS environments
Hi, would it be possible to update the underlying katex to something above 0.15.1? That would allow to put multiple \tag elements (one per line) withing AMS environments https://github.com/KaTeX/KaTeX/issues/2379#issuecomment-955796756
That is extremely useful and common in .tex files.
Thanks in advance!
Hi, I have just released 0.1.9 which updates KaTeX to 0.15.1. Please check.
@xu-cheng thanks for such quick response. Unfortunately it doesn't work, but that is not your fault, it is on the katex side: https://github.com/KaTeX/KaTeX/issues/2379#issuecomment-1011910260 I hope they can re-open and fix.
@xu-cheng are you sure it has 0.15.1? Little test here:
This file is demo3.tex
\documentclass[a4paper,twoside]{scrbook}
\usepackage{amsmath}
\begin{document}
\begin{align*}
y = \sin(nx) \tag{eq1} \\
z = \cos(nx) \tag{eq2}
\end{align*}
\end{document}
check version of pandoc-katex to make sure it is 0.1.9 and run it
$ pandoc-katex -V
pandoc-katex 0.1.9
$ pandoc demo3.tex -f latex -t html -s -o test3.html --filter pandoc-katex
Error: failed to execute js (detail: String("ParseError: KaTeX parse error: Multiple \\tag"))
Error running filter pandoc-katex:
Filter returned error status 1
fails. Now with just regular katex, file test.html
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.css">
</head>
<body>
$$
\begin{align*}
y = \sin(nx) \tag{eq1} \\
z = \cos(nx) \tag{eq2}
\end{align*}
$$
</body>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/contrib/auto-render.min.js"
onload="renderMathInElement(document.body);"></script>
</html>
produces the following output without any errors
I can reproduce your issue. But I think this is a result of combination issue of pandoc and katex.
If you run pandoc -f latex -t json demo3.tex | jq ., you will get
{
"pandoc-api-version": [
1,
22,
1
],
"meta": {},
"blocks": [
{
"t": "Para",
"c": [
{
"t": "Math",
"c": [
{
"t": "DisplayMath"
},
"\\begin{aligned}\n y = \\sin(nx) \\tag{eq1} \\\\\n z = \\cos(nx) \\tag{eq2}\\end{aligned}"
]
}
]
}
]
}
You can see pandoc replaces align* to aligned. At the same time, it does not seem that katex supports multiple \tag for aligned environment. Please consider to submit this issue to pandoc or katex.