public_library_map/node_modules/htmlparser2/lib/Parser.js

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2021-11-24 19:46:47 +11:00
"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;