| "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; |
