markdownlint/lib/md034.js

// @ts-check

"use strict";

const { addErrorContext } = require("../helpers");
const { filterByPredicate, filterByTypes, getHtmlTagInfo, parse } =
  require("../helpers/micromark.cjs");

module.exports = {
  "names": [ "MD034", "no-bare-urls" ],
  "description": "Bare URL used",
  "tags": [ "links", "url" ],
  "function": function MD034(params, onError) {
    const literalAutolinks = (tokens) => {
      const flattened = filterByPredicate(tokens, () => true);
      const result = [];
      for (let i = 0; i < flattened.length; i++) {
        const current = flattened[i];
        const openTagInfo = getHtmlTagInfo(current);
        if (openTagInfo && !openTagInfo.close) {
          let count = 1;
          for (let j = i + 1; j < flattened.length; j++) {
            const candidate = flattened[j];
            const closeTagInfo = getHtmlTagInfo(candidate);
            if (closeTagInfo && (openTagInfo.name === closeTagInfo.name)) {
              if (closeTagInfo.close) {
                count--;
                if (count === 0) {
                  i = j;
                  break;
                }
              } else {
                count++;
              }
            }
          }
        } else {
          result.push(current);
        }
      }
      return result.filter((token) => token.type === "literalAutolink");
    };
    const autoLinks = filterByTypes(
      params.parsers.micromark.tokens,
      [ "literalAutolink" ]
    );
    if (autoLinks.length > 0) {
      // Re-parse with correct link/image reference definition handling
      const document = params.lines.join("\n");
      const tokens = parse(document, undefined, false);
      for (const token of literalAutolinks(tokens)) {
        const range = [
          token.startColumn,
          token.endColumn - token.startColumn
        ];
        const fixInfo = {
          "editColumn": range[0],
          "deleteCount": range[1],
          "insertText": `<${token.text}>`
        };
        addErrorContext(
          onError,
          token.startLine,
          token.text,
          null,
          null,
          range,
          fixInfo
        );
      }
    }
  }
};