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Support GitLab-style math expressions #169

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Support GitLab-style math expressions #169

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4 changes: 2 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -118,8 +118,8 @@ When enabled the extension will make a GET request every second to:

The following `mathjax` delimiters are supported:

- inline math: `\(math\)` and `$math$`
- display math: `\[math\]` and `$$math$$`
- inline math: `\(math\)`, `$math$`, and ``$`math`$``
- display math: `\[math\]`, `$$math$$`, and math code blocks (```` ```math ````)

The following rules apply to your content when `mathjax` is enabled:

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1 change: 1 addition & 0 deletions background/mathjax.js
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Expand Up @@ -7,6 +7,7 @@ md.mathjax = () => {
/\\\[[^`]*?\\\]/,
/\\begin\{.*?\}[^`]*?\\end\{.*?\}/,
/\$[^`\n]*?\$/,
/\$`[^`\n]*?`\$/,
]
.map((regex) => `(?:${regex.source})`).join('|'), 'gi')

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9 changes: 9 additions & 0 deletions content/index.js
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Expand Up @@ -104,6 +104,14 @@ function mount () {
dom.push(m('script', {
src: 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.9/MathJax.js'
}))
dom.push(m('script', {type: 'text/javascript'}, `
;(() => {
var mathblocks = document.querySelectorAll('code.language-math')
mathblocks.forEach(mathblock => {
mathblock.parentNode.replaceWith("$$" + mathblock.textContent + "$$")
})
})()
`))
}
if (state.content.mermaid) {
dom.push(m('script', {
Expand Down Expand Up @@ -336,6 +344,7 @@ var mathjax = `
inlineMath: [
['$', '$'],
['\\\\(', '\\\\)'],
['$\`', '\`$'],
],
displayMath: [
['$$', '$$'],
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