"use strict";
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
};
|
Object.defineProperty(exports, "__esModule", { value: true });
|
exports.Parser = void 0;
|
var Tokenizer_1 = __importDefault(require("./Tokenizer"));
|
var formTags = new Set([
|
"input",
|
"option",
|
"optgroup",
|
"select",
|
"button",
|
"datalist",
|
"textarea",
|
]);
|
var pTag = new Set(["p"]);
|
var openImpliesClose = {
|
tr: new Set(["tr", "th", "td"]),
|
th: new Set(["th"]),
|
td: new Set(["thead", "th", "td"]),
|
body: new Set(["head", "link", "script"]),
|
li: new Set(["li"]),
|
p: pTag,
|
h1: pTag,
|
h2: pTag,
|
h3: pTag,
|
h4: pTag,
|
h5: pTag,
|
h6: pTag,
|
select: formTags,
|
input: formTags,
|
output: formTags,
|
button: formTags,
|
datalist: formTags,
|
textarea: formTags,
|
option: new Set(["option"]),
|
optgroup: new Set(["optgroup", "option"]),
|
dd: new Set(["dt", "dd"]),
|
dt: new Set(["dt", "dd"]),
|
address: pTag,
|
article: pTag,
|
aside: pTag,
|
blockquote: pTag,
|
details: pTag,
|
div: pTag,
|
dl: pTag,
|
fieldset: pTag,
|
figcaption: pTag,
|
figure: pTag,
|
footer: pTag,
|
form: pTag,
|
header: pTag,
|
hr: pTag,
|
main: pTag,
|
nav: pTag,
|
ol: pTag,
|
pre: pTag,
|
section: pTag,
|
table: pTag,
|
ul: pTag,
|
rt: new Set(["rt", "rp"]),
|
rp: new Set(["rt", "rp"]),
|
tbody: new Set(["thead", "tbody"]),
|
tfoot: new Set(["thead", "tbody"]),
|
};
|
var voidElements = new Set([
|
"area",
|
"base",
|
"basefont",
|
"br",
|
"col",
|
"command",
|
"embed",
|
"frame",
|
"hr",
|
"img",
|
"input",
|
"isindex",
|
"keygen",
|
"link",
|
"meta",
|
"param",
|
"source",
|
"track",
|
"wbr",
|
]);
|
var foreignContextElements = new Set(["math", "svg"]);
|
var htmlIntegrationElements = new Set([
|
"mi",
|
"mo",
|
"mn",
|
"ms",
|
"mtext",
|
"annotation-xml",
|
"foreignObject",
|
"desc",
|
"title",
|
]);
|
var reNameEnd = /\s|\//;
|
var Parser = /** @class */ (function () {
|
function Parser(cbs, options) {
|
if (options === void 0) { options = {}; }
|
var _a, _b, _c, _d, _e;
|
/** The start index of the last event. */
|
this.startIndex = 0;
|
/** The end index of the last event. */
|
this.endIndex = null;
|
this.tagname = "";
|
this.attribname = "";
|
this.attribvalue = "";
|
this.attribs = null;
|
this.stack = [];
|
this.foreignContext = [];
|
this.options = options;
|
this.cbs = cbs !== null && cbs !== void 0 ? cbs : {};
|
this.lowerCaseTagNames = (_a = options.lowerCaseTags) !== null && _a !== void 0 ? _a : !options.xmlMode;
|
this.lowerCaseAttributeNames =
|
(_b = options.lowerCaseAttributeNames) !== null && _b !== void 0 ? _b : !options.xmlMode;
|
this.tokenizer = new ((_c = options.Tokenizer) !== null && _c !== void 0 ? _c : Tokenizer_1.default)(this.options, this);
|
(_e = (_d = this.cbs).onparserinit) === null || _e === void 0 ? void 0 : _e.call(_d, this);
|
}
|
Parser.prototype.updatePosition = function (initialOffset) {
|
if (this.endIndex === null) {
|
if (this.tokenizer.sectionStart <= initialOffset) {
|
this.startIndex = 0;
|
}
|
else {
|
this.startIndex = this.tokenizer.sectionStart - initialOffset;
|
}
|
}
|
else {
|
this.startIndex = this.endIndex + 1;
|
}
|
this.endIndex = this.tokenizer.getAbsoluteIndex();
|
};
|
// Tokenizer event handlers
|
Parser.prototype.ontext = function (data) {
|
var _a, _b;
|
this.updatePosition(1);
|
this.endIndex--;
|
(_b = (_a = this.cbs).ontext) === null || _b === void 0 ? void 0 : _b.call(_a, data);
|
};
|
Parser.prototype.onopentagname = function (name) {
|
var _a, _b;
|
if (this.lowerCaseTagNames) {
|
name = name.toLowerCase();
|
}
|
this.tagname = name;
|
if (!this.options.xmlMode &&
|
Object.prototype.hasOwnProperty.call(openImpliesClose, name)) {
|
var el = void 0;
|
while (this.stack.length > 0 &&
|
openImpliesClose[name].has((el = this.stack[this.stack.length - 1]))) {
|
this.onclosetag(el);
|
}
|
}
|
if (this.options.xmlMode || !voidElements.has(name)) {
|
this.stack.push(name);
|
if (foreignContextElements.has(name)) {
|
this.foreignContext.push(true);
|
}
|
else if (htmlIntegrationElements.has(name)) {
|
this.foreignContext.push(false);
|
}
|
}
|
(_b = (_a = this.cbs).onopentagname) === null || _b === void 0 ? void 0 : _b.call(_a, name);
|
if (this.cbs.onopentag)
|
this.attribs = {};
|
};
|
Parser.prototype.onopentagend = function () {
|
var _a, _b;
|
this.updatePosition(1);
|
if (this.attribs) {
|
(_b = (_a = this.cbs).onopentag) === null || _b === void 0 ? void 0 : _b.call(_a, this.tagname, this.attribs);
|
this.attribs = null;
|
}
|
if (!this.options.xmlMode &&
|
this.cbs.onclosetag &&
|
voidElements.has(this.tagname)) {
|
this.cbs.onclosetag(this.tagname);
|
}
|
this.tagname = "";
|
};
|
Parser.prototype.onclosetag = function (name) {
|
this.updatePosition(1);
|
if (this.lowerCaseTagNames) {
|
name = name.toLowerCase();
|
}
|
if (foreignContextElements.has(name) ||
|
htmlIntegrationElements.has(name)) {
|
this.foreignContext.pop();
|
}
|
if (this.stack.length &&
|
(this.options.xmlMode || !voidElements.has(name))) {
|
var pos = this.stack.lastIndexOf(name);
|
if (pos !== -1) {
|
if (this.cbs.onclosetag) {
|
pos = this.stack.length - pos;
|
while (pos--) {
|
// We know the stack has sufficient elements.
|
this.cbs.onclosetag(this.stack.pop());
|
}
|
}
|
else
|
this.stack.length = pos;
|
}
|
else if (name === "p" && !this.options.xmlMode) {
|
this.onopentagname(name);
|
this.closeCurrentTag();
|
}
|
}
|
else if (!this.options.xmlMode && (name === "br" || name === "p")) {
|
this.onopentagname(name);
|
this.closeCurrentTag();
|
}
|
};
|
Parser.prototype.onselfclosingtag = function () {
|
if (this.options.xmlMode ||
|
this.options.recognizeSelfClosing ||
|
this.foreignContext[this.foreignContext.length - 1]) {
|
this.closeCurrentTag();
|
}
|
else {
|
this.onopentagend();
|
}
|
};
|
Parser.prototype.closeCurrentTag = function () {
|
var _a, _b;
|
var name = this.tagname;
|
this.onopentagend();
|
/*
|
* Self-closing tags will be on the top of the stack
|
* (cheaper check than in onclosetag)
|
*/
|
if (this.stack[this.stack.length - 1] === name) {
|
(_b = (_a = this.cbs).onclosetag) === null || _b === void 0 ? void 0 : _b.call(_a, name);
|
this.stack.pop();
|
}
|
};
|
Parser.prototype.onattribname = function (name) {
|
if (this.lowerCaseAttributeNames) {
|
name = name.toLowerCase();
|
}
|
this.attribname = name;
|
};
|
Parser.prototype.onattribdata = function (value) {
|
this.attribvalue += value;
|
};
|
Parser.prototype.onattribend = function (quote) {
|
var _a, _b;
|
(_b = (_a = this.cbs).onattribute) === null || _b === void 0 ? void 0 : _b.call(_a, this.attribname, this.attribvalue, quote);
|
if (this.attribs &&
|
!Object.prototype.hasOwnProperty.call(this.attribs, this.attribname)) {
|
this.attribs[this.attribname] = this.attribvalue;
|
}
|
this.attribname = "";
|
this.attribvalue = "";
|
};
|
Parser.prototype.getInstructionName = function (value) {
|
var idx = value.search(reNameEnd);
|
var name = idx < 0 ? value : value.substr(0, idx);
|
if (this.lowerCaseTagNames) {
|
name = name.toLowerCase();
|
}
|
return name;
|
};
|
Parser.prototype.ondeclaration = function (value) {
|
if (this.cbs.onprocessinginstruction) {
|
var name_1 = this.getInstructionName(value);
|
this.cbs.onprocessinginstruction("!" + name_1, "!" + value);
|
}
|
};
|
Parser.prototype.onprocessinginstruction = function (value) {
|
if (this.cbs.onprocessinginstruction) {
|
var name_2 = this.getInstructionName(value);
|
this.cbs.onprocessinginstruction("?" + name_2, "?" + value);
|
}
|
};
|
Parser.prototype.oncomment = function (value) {
|
var _a, _b, _c, _d;
|
this.updatePosition(4);
|
(_b = (_a = this.cbs).oncomment) === null || _b === void 0 ? void 0 : _b.call(_a, value);
|
(_d = (_c = this.cbs).oncommentend) === null || _d === void 0 ? void 0 : _d.call(_c);
|
};
|
Parser.prototype.oncdata = function (value) {
|
var _a, _b, _c, _d, _e, _f;
|
this.updatePosition(1);
|
if (this.options.xmlMode || this.options.recognizeCDATA) {
|
(_b = (_a = this.cbs).oncdatastart) === null || _b === void 0 ? void 0 : _b.call(_a);
|
(_d = (_c = this.cbs).ontext) === null || _d === void 0 ? void 0 : _d.call(_c, value);
|
(_f = (_e = this.cbs).oncdataend) === null || _f === void 0 ? void 0 : _f.call(_e);
|
}
|
else {
|
this.oncomment("[CDATA[" + value + "]]");
|
}
|
};
|
Parser.prototype.onerror = function (err) {
|
var _a, _b;
|
(_b = (_a = this.cbs).onerror) === null || _b === void 0 ? void 0 : _b.call(_a, err);
|
};
|
Parser.prototype.onend = function () {
|
var _a, _b;
|
if (this.cbs.onclosetag) {
|
for (var i = this.stack.length; i > 0; this.cbs.onclosetag(this.stack[--i]))
|
;
|
}
|
(_b = (_a = this.cbs).onend) === null || _b === void 0 ? void 0 : _b.call(_a);
|
};
|
/**
|
* Resets the parser to a blank state, ready to parse a new HTML document
|
*/
|
Parser.prototype.reset = function () {
|
var _a, _b, _c, _d;
|
(_b = (_a = this.cbs).onreset) === null || _b === void 0 ? void 0 : _b.call(_a);
|
this.tokenizer.reset();
|
this.tagname = "";
|
this.attribname = "";
|
this.attribs = null;
|
this.stack = [];
|
(_d = (_c = this.cbs).onparserinit) === null || _d === void 0 ? void 0 : _d.call(_c, this);
|
};
|
/**
|
* Resets the parser, then parses a complete document and
|
* pushes it to the handler.
|
*
|
* @param data Document to parse.
|
*/
|
Parser.prototype.parseComplete = function (data) {
|
this.reset();
|
this.end(data);
|
};
|
/**
|
* Parses a chunk of data and calls the corresponding callbacks.
|
*
|
* @param chunk Chunk to parse.
|
*/
|
Parser.prototype.write = function (chunk) {
|
this.tokenizer.write(chunk);
|
};
|
/**
|
* Parses the end of the buffer and clears the stack, calls onend.
|
*
|
* @param chunk Optional final chunk to parse.
|
*/
|
Parser.prototype.end = function (chunk) {
|
this.tokenizer.end(chunk);
|
};
|
/**
|
* Pauses parsing. The parser won't emit events until `resume` is called.
|
*/
|
Parser.prototype.pause = function () {
|
this.tokenizer.pause();
|
};
|
/**
|
* Resumes parsing after `pause` was called.
|
*/
|
Parser.prototype.resume = function () {
|
this.tokenizer.resume();
|
};
|
/**
|
* Alias of `write`, for backwards compatibility.
|
*
|
* @param chunk Chunk to parse.
|
* @deprecated
|
*/
|
Parser.prototype.parseChunk = function (chunk) {
|
this.write(chunk);
|
};
|
/**
|
* Alias of `end`, for backwards compatibility.
|
*
|
* @param chunk Optional final chunk to parse.
|
* @deprecated
|
*/
|
Parser.prototype.done = function (chunk) {
|
this.end(chunk);
|
};
|
return Parser;
|
}());
|
exports.Parser = Parser;
|
