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Diffstat (limited to 'node_modules/htmlparser2/lib/Parser.js')
| -rw-r--r-- | node_modules/htmlparser2/lib/Parser.js | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/node_modules/htmlparser2/lib/Parser.js b/node_modules/htmlparser2/lib/Parser.js new file mode 100644 index 0000000..adc323d --- /dev/null +++ b/node_modules/htmlparser2/lib/Parser.js @@ -0,0 +1,381 @@ +"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; |