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Replace MathJax with KaTeX (#497)

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Signed-off-by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
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mrdrogdrog 2020-08-27 15:13:35 +02:00 • committed by GitHub
parent 7adb86846b
commit ef36123377
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36 changed files with 85 additions and 109 deletions
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28
src/components/markdown-renderer/replace-components/katex/katex-replacer.tsx Normal file
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import { DomElement } from 'domhandler'
import React from 'react'
import 'katex/dist/katex.min.css'
import TeX from '@matejmazur/react-katex'
import { ComponentReplacer } from '../ComponentReplacer'
const getNodeIfKatexBlock = (node: DomElement): (DomElement|undefined) => {
if (node.name !== 'p' || !node.children || node.children.length !== 1) {
return
}
const katexNode = node.children[0]
return (katexNode.name === 'codimd-katex' && katexNode.attribs?.inline === undefined) ? katexNode : undefined
}
const getNodeIfInlineKatex = (node: DomElement): (DomElement|undefined) => {
return (node.name === 'codimd-katex' && node.attribs?.inline !== undefined) ? node : undefined
}
export class KatexReplacer implements ComponentReplacer {
getReplacement (node: DomElement, index: number): React.ReactElement | undefined {
const katex = getNodeIfKatexBlock(node) || getNodeIfInlineKatex(node)
if (katex?.children && katex.children[0]) {
const mathJaxContent = katex.children[0]?.data as string
const isInline = (katex.attribs?.inline) !== undefined
return <TeX key={index} block={!isInline} math={mathJaxContent} errorColor={'#cc0000'}/>
}
}
}

27
src/components/markdown-renderer/replace-components/mathjax/mathjax-replacer.tsx
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@ -1,27 +0,0 @@
import { DomElement } from 'domhandler'
import React from 'react'
import MathJax from 'react-mathjax'
import { ComponentReplacer, SubNodeConverter } from '../ComponentReplacer'
const getNodeIfMathJaxBlock = (node: DomElement): (DomElement|undefined) => {
if (node.name !== 'p' || !node.children || node.children.length !== 1) {
return
}
const mathJaxNode = node.children[0]
return (mathJaxNode.name === 'codimd-mathjax' && mathJaxNode.attribs?.inline === undefined) ? mathJaxNode : undefined
}
const getNodeIfInlineMathJax = (node: DomElement): (DomElement|undefined) => {
return (node.name === 'codimd-mathjax' && node.attribs?.inline !== undefined) ? node : undefined
}
export class MathjaxReplacer implements ComponentReplacer {
getReplacement (node: DomElement, index: number, subNodeConverter: SubNodeConverter): React.ReactElement | undefined {
const mathJax = getNodeIfMathJaxBlock(node) || getNodeIfInlineMathJax(node)
if (mathJax?.children && mathJax.children[0]) {
const mathJaxContent = mathJax.children[0]?.data as string
const isInline = (mathJax.attribs?.inline) !== undefined
return <MathJax.Node key={index} inline={isInline} formula={mathJaxContent}/>
}
}
}