svem/dist/plugins/svelte.js

Svelte in Markdown preprocessor

import { visit } from "unist-util-visit";
const remarkSvelteParse = () => {
  return (tree) => {
    visit(tree, "code", (node) => {
      if (node.lang) return;
      const patterns = ["{#", "{@"];
      const isSvelte = patterns.some((pattern) => node.value?.startsWith(pattern));
      if (isSvelte) {
        node.type = "html";
      }
    });
  };
};
const remarkSvelteEscape = () => {
  return (tree) => {
    visit(tree, "html-code", (node) => {
      escapeCode(node);
    });
    visit(tree, "code", (node) => {
      escapeCode(node);
    });
    visit(tree, "inlineCode", (node) => {
      escapeCode(node);
    });
  };
};
const escapeCode = (node) => {
  if (node.value?.startsWith("{@html")) return;
  node.type = "html";
  node.value = `{@html \`${node.value}\`}`;
};
export {
  remarkSvelteEscape,
  remarkSvelteParse
};