初始化

node_modules/cheerio/src/parsers/parse5-adapter.ts

@@ -0,0 +1,66 @@
+import {
+  type AnyNode,
+  type Document,
+  type ParentNode,
+  isDocument,
+} from 'domhandler';
+import { parse as parseDocument, parseFragment, serializeOuter } from 'parse5';
+import { adapter as htmlparser2Adapter } from 'parse5-htmlparser2-tree-adapter';
+import type { InternalOptions } from '../options.js';
+
+/**
+ * Parse the content with `parse5` in the context of the given `ParentNode`.
+ *
+ * @param content - The content to parse.
+ * @param options - A set of options to use to parse.
+ * @param isDocument - Whether to parse the content as a full HTML document.
+ * @param context - The context in which to parse the content.
+ * @returns The parsed content.
+ */
+export function parseWithParse5(
+  content: string,
+  options: InternalOptions,
+  isDocument: boolean,
+  context: ParentNode | null,
+): Document {
+  options.treeAdapter ??= htmlparser2Adapter;
+
+  if (options.scriptingEnabled !== false) {
+    options.scriptingEnabled = true;
+  }
+
+  return isDocument
+    ? parseDocument(content, options)
+    : parseFragment(context, content, options);
+}
+
+const renderOpts = { treeAdapter: htmlparser2Adapter };
+
+/**
+ * Renders the given DOM tree with `parse5` and returns the result as a string.
+ *
+ * @param dom - The DOM tree to render.
+ * @returns The rendered document.
+ */
+export function renderWithParse5(dom: AnyNode | ArrayLike<AnyNode>): string {
+  /*
+   * `dom-serializer` passes over the special "root" node and renders the
+   * node's children in its place. To mimic this behavior with `parse5`, an
+   * equivalent operation must be applied to the input array.
+   */
+  const nodes = 'length' in dom ? dom : [dom];
+  for (let index = 0; index < nodes.length; index += 1) {
+    const node = nodes[index];
+    if (isDocument(node)) {
+      Array.prototype.splice.call(nodes, index, 1, ...node.children);
+    }
+  }
+
+  let result = '';
+  for (let index = 0; index < nodes.length; index += 1) {
+    const node = nodes[index];
+    result += serializeOuter(node, renderOpts);
+  }
+
+  return result;
+}