Convert markdownlint library to an ECMAScript module, replace markdownlint-micromark with micromark, stop publishing (large) markdownlint-browser.js, see https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c for guidance.

lib/md007.mjs

@@ -0,0 +1,83 @@
+// @ts-check
+
+import { addErrorDetailIf } from "../helpers/helpers.cjs";
+import { getParentOfType } from "../helpers/micromark-helpers.cjs";
+import { filterByTypesCached } from "./cache.mjs";
+
+/** @type {import("micromark-util-types").TokenType[]} */
+const unorderedListTypes =
+  [ "blockQuotePrefix", "listItemPrefix", "listUnordered" ];
+/** @type {import("micromark-util-types").TokenType[]} */
+const unorderedParentTypes =
+  [ "blockQuote", "listOrdered", "listUnordered" ];
+
+/** @type {import("./markdownlint.mjs").Rule} */
+export default {
+  "names": [ "MD007", "ul-indent" ],
+  "description": "Unordered list indentation",
+  "tags": [ "bullet", "ul", "indentation" ],
+  "parser": "micromark",
+  "function": function MD007(params, onError) {
+    const indent = Number(params.config.indent || 2);
+    const startIndented = !!params.config.start_indented;
+    const startIndent = Number(params.config.start_indent || indent);
+    const unorderedListNesting = new Map();
+    let lastBlockQuotePrefix = null;
+    const tokens = filterByTypesCached(unorderedListTypes);
+    for (const token of tokens) {
+      const { endColumn, parent, startColumn, startLine, type } = token;
+      if (type === "blockQuotePrefix") {
+        lastBlockQuotePrefix = token;
+      } else if (type === "listUnordered") {
+        let nesting = 0;
+        /** @type {import("../helpers/micromark-helpers.cjs").Token | null} */
+        let current = token;
+        while (
+          // @ts-ignore
+          (current = getParentOfType(current, unorderedParentTypes))
+        ) {
+          if (current.type === "listUnordered") {
+            nesting++;
+            // eslint-disable-next-line no-continue
+            continue;
+          } else if (current.type === "listOrdered") {
+            nesting = -1;
+          }
+          break;
+        }
+        if (nesting >= 0) {
+          unorderedListNesting.set(token, nesting);
+        }
+      } else {
+        // listItemPrefix
+        const nesting = unorderedListNesting.get(parent);
+        if (nesting !== undefined) {
+          // listItemPrefix for listUnordered
+          const expectedIndent =
+            (startIndented ? startIndent : 0) + (nesting * indent);
+          const blockQuoteAdjustment =
+            (lastBlockQuotePrefix?.endLine === startLine) ?
+              (lastBlockQuotePrefix.endColumn - 1) :
+              0;
+          const actualIndent = startColumn - 1 - blockQuoteAdjustment;
+          const range = [ 1, endColumn - 1 ];
+          const fixInfo = {
+            "editColumn": startColumn - actualIndent,
+            "deleteCount": Math.max(actualIndent - expectedIndent, 0),
+            "insertText": "".padEnd(Math.max(expectedIndent - actualIndent, 0))
+          };
+          addErrorDetailIf(
+            onError,
+            startLine,
+            expectedIndent,
+            actualIndent,
+            undefined,
+            undefined,
+            range,
+            fixInfo
+          );
+        }
+      }
+    }
+  }
+};