57 lines
1.4 KiB
TypeScript
57 lines
1.4 KiB
TypeScript
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import * as marked from "npm:marked";
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const inlineRule = /^\${1,2}([^$\n]+)\${1,2}/;
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const blockRule = /^\${1,3}\n([^$\n]+)\n\${1,3}/;
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const inlineLatexExtension = {
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name: "inlineKatex",
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level: "inline",
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start(src) {
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const match = src.match(inlineRule);
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if (!match) return;
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return match.index;
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},
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tokenizer(src, tokens) {
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const match = src.match(inlineRule);
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if (match) {
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return {
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type: 'inlineKatex',
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raw: match[0],
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text: match[1].trim(),
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};
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}
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},
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renderer(token) {
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const text = token.text.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """);
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return `<span data-mx-maths="${text}"><code>${text}</code></span>`;
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},
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}
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const blockLatexExtension = {
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name: "blockLatex",
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level: "inline",
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start(src) {
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const match = src.match(blockRule);
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if (!match) return;
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return match.index;
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},
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tokenizer(src, tokens) {
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const match = src.match(blockRule);
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if (match) {
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return {
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type: 'blockKatex',
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raw: match[0],
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text: match[1].trim(),
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};
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}
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},
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renderer(token) {
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const text = token.text.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """);
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return `<p><span data-mx-maths="${text}"><code>${text}</code></span></p>`;
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},
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}
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marked.use({ extensions: [inlineLatexExtension, blockLatexExtension] });
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export default marked;
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