element.
* const html = parse5.serializeOuter(document.childNodes[0]);
*
* console.log(str); //> '
Hello, world!
'
* ```
*
* @param node Node to serialize.
* @param options Serialization options.
*/
export function serializeOuter(node, options) {
const opts = { ...defaultOpts, ...options };
return serializeNode(node, opts);
}
function serializeChildNodes(parentNode, options) {
let html = '';
// Get container of the child nodes
const container = options.treeAdapter.isElementNode(parentNode) &&
options.treeAdapter.getTagName(parentNode) === $.TEMPLATE &&
options.treeAdapter.getNamespaceURI(parentNode) === NS.HTML
? options.treeAdapter.getTemplateContent(parentNode)
: parentNode;
const childNodes = options.treeAdapter.getChildNodes(container);
if (childNodes) {
for (const currentNode of childNodes) {
html += serializeNode(currentNode, options);
}
}
return html;
}
function serializeNode(node, options) {
if (options.treeAdapter.isElementNode(node)) {
return serializeElement(node, options);
}
if (options.treeAdapter.isTextNode(node)) {
return serializeTextNode(node, options);
}
if (options.treeAdapter.isCommentNode(node)) {
return serializeCommentNode(node, options);
}
if (options.treeAdapter.isDocumentTypeNode(node)) {
return serializeDocumentTypeNode(node, options);
}
// Return an empty string for unknown nodes
return '';
}
function serializeElement(node, options) {
const tn = options.treeAdapter.getTagName(node);
return `<${tn}${serializeAttributes(node, options)}>${isVoidElement(node, options) ? '' : `${serializeChildNodes(node, options)}`}`;
}
function serializeAttributes(node, { treeAdapter }) {
let html = '';
for (const attr of treeAdapter.getAttrList(node)) {
html += ' ';
if (!attr.namespace) {
html += attr.name;
}
else
switch (attr.namespace) {
case NS.XML: {
html += `xml:${attr.name}`;
break;
}
case NS.XMLNS: {
if (attr.name !== 'xmlns') {
html += 'xmlns:';
}
html += attr.name;
break;
}
case NS.XLINK: {
html += `xlink:${attr.name}`;
break;
}
default: {
html += `${attr.prefix}:${attr.name}`;
}
}
html += `="${escapeAttribute(attr.value)}"`;
}
return html;
}
function serializeTextNode(node, options) {
const { treeAdapter } = options;
const content = treeAdapter.getTextNodeContent(node);
const parent = treeAdapter.getParentNode(node);
const parentTn = parent && treeAdapter.isElementNode(parent) && treeAdapter.getTagName(parent);
return parentTn &&
treeAdapter.getNamespaceURI(parent) === NS.HTML &&
hasUnescapedText(parentTn, options.scriptingEnabled)
? content
: escapeText(content);
}
function serializeCommentNode(node, { treeAdapter }) {
return ``;
}
function serializeDocumentTypeNode(node, { treeAdapter }) {
return ``;
}
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