66 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import remarkMath from "remark-math"
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import rehypeKatex from "rehype-katex"
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import rehypeMathjax from "rehype-mathjax/svg"
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//@ts-ignore
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import rehypeTypst from "@myriaddreamin/rehype-typst"
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import { QuartzTransformerPlugin } from "../types"
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import { KatexOptions } from "katex"
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import { Options as MathjaxOptions } from "rehype-mathjax/svg"
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//@ts-ignore
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import { Options as TypstOptions } from "@myriaddreamin/rehype-typst"
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interface Options {
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  renderEngine: "katex" | "mathjax" | "typst"
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  customMacros: MacroType
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  katexOptions: Omit<KatexOptions, "macros" | "output">
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  mathJaxOptions: Omit<MathjaxOptions, "macros">
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  typstOptions: TypstOptions
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}
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interface MacroType {
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  [key: string]: string
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}
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export const Latex: QuartzTransformerPlugin<Partial<Options>> = (opts) => {
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  const engine = opts?.renderEngine ?? "katex"
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  const macros = opts?.customMacros ?? {}
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  return {
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    name: "Latex",
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    markdownPlugins() {
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      return [remarkMath]
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    },
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    htmlPlugins() {
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      switch (engine) {
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        case "katex": {
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          return [[rehypeKatex, { output: "html", macros, ...(opts?.katexOptions ?? {}) }]]
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        }
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        case "typst": {
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          return [[rehypeTypst, opts?.typstOptions ?? {}]]
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        }
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        case "mathjax": {
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          return [[rehypeMathjax, { macros, ...(opts?.mathJaxOptions ?? {}) }]]
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        }
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        default: {
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          return [[rehypeMathjax, { macros, ...(opts?.mathJaxOptions ?? {}) }]]
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        }
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      }
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    },
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    externalResources() {
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      switch (engine) {
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        case "katex":
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          return {
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            css: [{ content: "https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/katex.min.css" }],
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            js: [
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              {
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                // fix copy behaviour: https://github.com/KaTeX/KaTeX/blob/main/contrib/copy-tex/README.md
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                src: "https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/contrib/copy-tex.min.js",
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                loadTime: "afterDOMReady",
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                contentType: "external",
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              },
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            ],
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          }
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      }
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    },
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  }
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}
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