html-dom-parser
Version:
HTML to DOM parser.
336 lines (335 loc) • 8.83 kB
JavaScript
const require_index = require("../../domelementtype/dist/index.js");
//#region node_modules/domhandler/dist/node.js
/**
* This object will be used as the prototype for Nodes when creating a
* DOM-Level-1-compliant structure.
*/
var Node = class {
/** Parent of the node */
parent = null;
/** Previous sibling */
prev = null;
/** Next sibling */
next = null;
/** The start index of the node. Requires `withStartIndices` on the handler to be `true. */
startIndex = null;
/** The end index of the node. Requires `withEndIndices` on the handler to be `true. */
endIndex = null;
/**
* Same as {@link parent}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get parentNode() {
return this.parent;
}
set parentNode(parent) {
this.parent = parent;
}
/**
* Same as {@link prev}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get previousSibling() {
return this.prev;
}
set previousSibling(previous) {
this.prev = previous;
}
/**
* Same as {@link next}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get nextSibling() {
return this.next;
}
set nextSibling(next) {
this.next = next;
}
/**
* Clone this node, and optionally its children.
* @param recursive Clone child nodes as well.
* @returns A clone of the node.
*/
cloneNode(recursive = false) {
return cloneNode(this, recursive);
}
};
/**
* A node that contains some data.
*/
var DataNode = class extends Node {
data;
/**
* @param data The content of the data node
*/
constructor(data) {
super();
this.data = data;
}
/**
* Same as {@link data}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get nodeValue() {
return this.data;
}
set nodeValue(data) {
this.data = data;
}
};
/**
* Text within the document.
*/
var Text = class extends DataNode {
type = require_index.ElementType.Text;
get nodeType() {
return 3;
}
};
/**
* Comments within the document.
*/
var Comment = class extends DataNode {
type = require_index.ElementType.Comment;
get nodeType() {
return 8;
}
};
/**
* Processing instructions, including doc types.
*/
var ProcessingInstruction = class extends DataNode {
type = require_index.ElementType.Directive;
name;
constructor(name, data) {
super(data);
this.name = name;
}
get nodeType() {
return 1;
}
/** If this is a doctype, the document type name (parse5 only). */
"x-name";
/** If this is a doctype, the document type public identifier (parse5 only). */
"x-publicId";
/** If this is a doctype, the document type system identifier (parse5 only). */
"x-systemId";
};
/**
* A node that can have children.
*/
var NodeWithChildren = class extends Node {
children;
/**
* @param children Children of the node. Only certain node types can have children.
*/
constructor(children) {
super();
this.children = children;
}
/** First child of the node. */
get firstChild() {
return this.children[0] ?? null;
}
/** Last child of the node. */
get lastChild() {
return this.children.length > 0 ? this.children[this.children.length - 1] : null;
}
/**
* Same as {@link children}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get childNodes() {
return this.children;
}
set childNodes(children) {
this.children = children;
}
};
/**
* CDATA nodes.
*/
var CDATA = class extends NodeWithChildren {
type = require_index.ElementType.CDATA;
get nodeType() {
return 4;
}
};
/**
* The root node of the document.
*/
var Document = class extends NodeWithChildren {
type = require_index.ElementType.Root;
get nodeType() {
return 9;
}
};
/**
* An element within the DOM.
*/
var Element = class extends NodeWithChildren {
name;
attribs;
type;
/**
* @param name Name of the tag, eg. `div`, `span`.
* @param attribs Object mapping attribute names to attribute values.
* @param children Children of the node.
* @param type Node type used for the new node instance.
*/
constructor(name, attribs, children = [], type = name === "script" ? require_index.ElementType.Script : name === "style" ? require_index.ElementType.Style : require_index.ElementType.Tag) {
super(children);
this.name = name;
this.attribs = attribs;
this.type = type;
}
get nodeType() {
return 1;
}
/**
* Same as {@link name}.
* [DOM spec](https://dom.spec.whatwg.org)-compatible alias.
*/
get tagName() {
return this.name;
}
set tagName(name) {
this.name = name;
}
get attributes() {
return Object.keys(this.attribs).map((name) => ({
name,
value: this.attribs[name],
namespace: this["x-attribsNamespace"]?.[name],
prefix: this["x-attribsPrefix"]?.[name]
}));
}
/** Element namespace (parse5 only). */
namespace;
/** Element attribute namespaces (parse5 only). */
"x-attribsNamespace";
/** Element attribute namespace-related prefixes (parse5 only). */
"x-attribsPrefix";
};
/**
* Checks if `node` is an element node.
* @param node Node to check.
* @returns `true` if the node is an element node.
*/
function isTag(node) {
return require_index.isTag(node);
}
/**
* Checks if `node` is a CDATA node.
* @param node Node to check.
* @returns `true` if the node is a CDATA node.
*/
function isCDATA(node) {
return node.type === require_index.ElementType.CDATA;
}
/**
* Checks if `node` is a text node.
* @param node Node to check.
* @returns `true` if the node is a text node.
*/
function isText(node) {
return node.type === require_index.ElementType.Text;
}
/**
* Checks if `node` is a comment node.
* @param node Node to check.
* @returns `true` if the node is a comment node.
*/
function isComment(node) {
return node.type === require_index.ElementType.Comment;
}
/**
* Checks if `node` is a directive node.
* @param node Node to check.
* @returns `true` if the node is a directive node.
*/
function isDirective(node) {
return node.type === require_index.ElementType.Directive;
}
/**
* Checks if `node` is a document node.
* @param node Node to check.
* @returns `true` if the node is a document node.
*/
function isDocument(node) {
return node.type === require_index.ElementType.Root;
}
/**
* Clone a node, and optionally its children.
* @param node Node to clone.
* @param recursive Clone child nodes as well.
* @returns A clone of the node.
*/
function cloneNode(node, recursive = false) {
let result;
if (isText(node)) result = new Text(node.data);
else if (isComment(node)) result = new Comment(node.data);
else if (isTag(node)) {
const children = recursive ? cloneChildren(node.children) : [];
const clone = new Element(node.name, { ...node.attribs }, children);
for (const child of children) child.parent = clone;
if (node.namespace != null) clone.namespace = node.namespace;
if (node["x-attribsNamespace"]) clone["x-attribsNamespace"] = { ...node["x-attribsNamespace"] };
if (node["x-attribsPrefix"]) clone["x-attribsPrefix"] = { ...node["x-attribsPrefix"] };
result = clone;
} else if (isCDATA(node)) {
const children = recursive ? cloneChildren(node.children) : [];
const clone = new CDATA(children);
for (const child of children) child.parent = clone;
result = clone;
} else if (isDocument(node)) {
const children = recursive ? cloneChildren(node.children) : [];
const clone = new Document(children);
for (const child of children) child.parent = clone;
if (node["x-mode"]) clone["x-mode"] = node["x-mode"];
result = clone;
} else if (isDirective(node)) {
const instruction = new ProcessingInstruction(node.name, node.data);
if (node["x-name"] != null) {
instruction["x-name"] = node["x-name"];
instruction["x-publicId"] = node["x-publicId"];
instruction["x-systemId"] = node["x-systemId"];
}
result = instruction;
} else throw new Error(`Not implemented yet: ${node.type}`);
result.startIndex = node.startIndex;
result.endIndex = node.endIndex;
if (node.sourceCodeLocation != null) result.sourceCodeLocation = node.sourceCodeLocation;
return result;
}
/**
* Clone a list of child nodes.
* @param childs The child nodes to clone.
* @returns A list of cloned child nodes.
*/
function cloneChildren(childs) {
const children = childs.map((child) => cloneNode(child, true));
for (let index = 1; index < children.length; index++) {
children[index].prev = children[index - 1];
children[index - 1].next = children[index];
}
return children;
}
//#endregion
exports.CDATA = CDATA;
exports.Comment = Comment;
exports.DataNode = DataNode;
exports.Document = Document;
exports.Element = Element;
exports.Node = Node;
exports.NodeWithChildren = NodeWithChildren;
exports.ProcessingInstruction = ProcessingInstruction;
exports.Text = Text;
exports.cloneNode = cloneNode;
exports.isCDATA = isCDATA;
exports.isComment = isComment;
exports.isDirective = isDirective;
exports.isDocument = isDocument;
exports.isTag = isTag;
exports.isText = isText;
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