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+/*
+ * Module dependencies
+ */
+import * as ElementType from "domelementtype";
+import { encodeXML, escapeAttribute, escapeText } from "entities";
+/**
+ * Mixed-case SVG and MathML tags & attributes
+ * recognized by the HTML parser.
+ *
+ * @see https://html.spec.whatwg.org/multipage/parsing.html#parsing-main-inforeign
+ */
+import { elementNames, attributeNames } from "./foreignNames.js";
+const unencodedElements = new Set([
+ "style",
+ "script",
+ "xmp",
+ "iframe",
+ "noembed",
+ "noframes",
+ "plaintext",
+ "noscript",
+]);
+function replaceQuotes(value) {
+ return value.replace(/"/g, """);
+}
+/**
+ * Format attributes
+ */
+function formatAttributes(attributes, opts) {
+ var _a;
+ if (!attributes)
+ return;
+ const encode = ((_a = opts.encodeEntities) !== null && _a !== void 0 ? _a : opts.decodeEntities) === false
+ ? replaceQuotes
+ : opts.xmlMode || opts.encodeEntities !== "utf8"
+ ? encodeXML
+ : escapeAttribute;
+ return Object.keys(attributes)
+ .map((key) => {
+ var _a, _b;
+ const value = (_a = attributes[key]) !== null && _a !== void 0 ? _a : "";
+ if (opts.xmlMode === "foreign") {
+ /* Fix up mixed-case attribute names */
+ key = (_b = attributeNames.get(key)) !== null && _b !== void 0 ? _b : key;
+ }
+ if (!opts.emptyAttrs && !opts.xmlMode && value === "") {
+ return key;
+ }
+ return `${key}="${encode(value)}"`;
+ })
+ .join(" ");
+}
+/**
+ * Self-enclosing tags
+ */
+const singleTag = new Set([
+ "area",
+ "base",
+ "basefont",
+ "br",
+ "col",
+ "command",
+ "embed",
+ "frame",
+ "hr",
+ "img",
+ "input",
+ "isindex",
+ "keygen",
+ "link",
+ "meta",
+ "param",
+ "source",
+ "track",
+ "wbr",
+]);
+/**
+ * Renders a DOM node or an array of DOM nodes to a string.
+ *
+ * Can be thought of as the equivalent of the `outerHTML` of the passed node(s).
+ *
+ * @param node Node to be rendered.
+ * @param options Changes serialization behavior
+ */
+export function render(node, options = {}) {
+ const nodes = "length" in node ? node : [node];
+ let output = "";
+ for (let i = 0; i < nodes.length; i++) {
+ output += renderNode(nodes[i], options);
+ }
+ return output;
+}
+export default render;
+function renderNode(node, options) {
+ switch (node.type) {
+ case ElementType.Root:
+ return render(node.children, options);
+ // @ts-expect-error We don't use `Doctype` yet
+ case ElementType.Doctype:
+ case ElementType.Directive:
+ return renderDirective(node);
+ case ElementType.Comment:
+ return renderComment(node);
+ case ElementType.CDATA:
+ return renderCdata(node);
+ case ElementType.Script:
+ case ElementType.Style:
+ case ElementType.Tag:
+ return renderTag(node, options);
+ case ElementType.Text:
+ return renderText(node, options);
+ }
+}
+const foreignModeIntegrationPoints = new Set([
+ "mi",
+ "mo",
+ "mn",
+ "ms",
+ "mtext",
+ "annotation-xml",
+ "foreignObject",
+ "desc",
+ "title",
+]);
+const foreignElements = new Set(["svg", "math"]);
+function renderTag(elem, opts) {
+ var _a;
+ // Handle SVG / MathML in HTML
+ if (opts.xmlMode === "foreign") {
+ /* Fix up mixed-case element names */
+ elem.name = (_a = elementNames.get(elem.name)) !== null && _a !== void 0 ? _a : elem.name;
+ /* Exit foreign mode at integration points */
+ if (elem.parent &&
+ foreignModeIntegrationPoints.has(elem.parent.name)) {
+ opts = { ...opts, xmlMode: false };
+ }
+ }
+ if (!opts.xmlMode && foreignElements.has(elem.name)) {
+ opts = { ...opts, xmlMode: "foreign" };
+ }
+ let tag = `<${elem.name}`;
+ const attribs = formatAttributes(elem.attribs, opts);
+ if (attribs) {
+ tag += ` ${attribs}`;
+ }
+ if (elem.children.length === 0 &&
+ (opts.xmlMode
+ ? // In XML mode or foreign mode, and user hasn't explicitly turned off self-closing tags
+ opts.selfClosingTags !== false
+ : // User explicitly asked for self-closing tags, even in HTML mode
+ opts.selfClosingTags && singleTag.has(elem.name))) {
+ if (!opts.xmlMode)
+ tag += " ";
+ tag += "/>";
+ }
+ else {
+ tag += ">";
+ if (elem.children.length > 0) {
+ tag += render(elem.children, opts);
+ }
+ if (opts.xmlMode || !singleTag.has(elem.name)) {
+ tag += `</${elem.name}>`;
+ }
+ }
+ return tag;
+}
+function renderDirective(elem) {
+ return `<${elem.data}>`;
+}
+function renderText(elem, opts) {
+ var _a;
+ let data = elem.data || "";
+ // If entities weren't decoded, no need to encode them back
+ if (((_a = opts.encodeEntities) !== null && _a !== void 0 ? _a : opts.decodeEntities) !== false &&
+ !(!opts.xmlMode &&
+ elem.parent &&
+ unencodedElements.has(elem.parent.name))) {
+ data =
+ opts.xmlMode || opts.encodeEntities !== "utf8"
+ ? encodeXML(data)
+ : escapeText(data);
+ }
+ return data;
+}
+function renderCdata(elem) {
+ return `<![CDATA[${elem.children[0].data}]]>`;
+}
+function renderComment(elem) {
+ return `<!--${elem.data}-->`;
+}