refactor: Still trying to reorganize edit mode to be more robust

node_modules/w3c-xmlserializer/LICENSE.md

@@ -0,0 +1,25 @@
+The MIT License (MIT)
+=====================
+
+Copyright © Sebastian Mayr
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the “Software”), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

node_modules/w3c-xmlserializer/README.md

@@ -0,0 +1,41 @@
+# w3c-xmlserializer
+
+An XML serializer that follows the [W3C specification](https://w3c.github.io/DOM-Parsing/).
+
+This package can be used in Node.js, as long as you feed it a DOM node, e.g. one produced by [jsdom](https://github.com/jsdom/jsdom).
+
+## Basic usage
+
+Assume you have a DOM tree rooted at a node `node`. In Node.js, you could create this using [jsdom](https://github.com/jsdom/jsdom) as follows:
+
+```js
+const { JSDOM } = require("jsdom");
+
+const { document } = new JSDOM().window;
+const node = document.createElement("akomaNtoso");
+```
+
+Then, you use this package as follows:
+
+
+```js
+const serialize = require("w3c-xmlserializer");
+
+console.log(serialize(node));
+// => '<akomantoso xmlns="http://www.w3.org/1999/xhtml"></akomantoso>'
+```
+
+## `requireWellFormed` option
+
+By default the input DOM tree is not required to be "well-formed"; any given input will serialize to some output string. You can instead require well-formedness via
+
+```js
+serialize(node, { requireWellFormed: true });
+```
+
+which will cause `Error`s to be thrown when non-well-formed constructs are encountered. [Per the spec](https://w3c.github.io/DOM-Parsing/#dfn-require-well-formed), this largely is about imposing constraints on the names of elements, attributes, etc.
+
+As a point of reference, on the web platform:
+
+* The [`innerHTML` getter](https://w3c.github.io/DOM-Parsing/#dom-innerhtml-innerhtml) uses the require-well-formed mode, i.e. trying to get the `innerHTML` of non-well-formed subtrees will throw.
+* The [`xhr.send()` method](https://xhr.spec.whatwg.org/#the-send()-method) does not require well-formedness, i.e. sending non-well-formed `Document`s will serialize and send them anyway.

node_modules/w3c-xmlserializer/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "w3c-xmlserializer",
+  "description": "A per-spec XML serializer implementation",
+  "keywords": [
+    "dom",
+    "w3c",
+    "xml",
+    "xmlserializer"
+  ],
+  "version": "5.0.0",
+  "license": "MIT",
+  "dependencies": {
+    "xml-name-validator": "^5.0.0"
+  },
+  "devDependencies": {
+    "@domenic/eslint-config": "^3.0.0",
+    "eslint": "^8.53.0",
+    "jsdom": "^22.1.0"
+  },
+  "repository": "jsdom/w3c-xmlserializer",
+  "files": [
+    "lib/"
+  ],
+  "main": "lib/serialize.js",
+  "scripts": {
+    "test": "node --test",
+    "lint": "eslint ."
+  },
+  "engines": {
+    "node": ">=18"
+  }
+}