--- /dev/null
+var Tokenizer = require("./Tokenizer.js");
+
+/*
+ Options:
+
+ xmlMode: Disables the special behavior for script/style tags (false by default)
+ lowerCaseAttributeNames: call .toLowerCase for each attribute name (true if xmlMode is `false`)
+ lowerCaseTags: call .toLowerCase for each tag name (true if xmlMode is `false`)
+*/
+
+/*
+ Callbacks:
+
+ oncdataend,
+ oncdatastart,
+ onclosetag,
+ oncomment,
+ oncommentend,
+ onerror,
+ onopentag,
+ onprocessinginstruction,
+ onreset,
+ ontext
+*/
+
+var formTags = {
+ input: true,
+ option: true,
+ optgroup: true,
+ select: true,
+ button: true,
+ datalist: true,
+ textarea: true
+};
+
+var openImpliesClose = {
+ tr: { tr: true, th: true, td: true },
+ th: { th: true },
+ td: { thead: true, th: true, td: true },
+ body: { head: true, link: true, script: true },
+ li: { li: true },
+ p: { p: true },
+ h1: { p: true },
+ h2: { p: true },
+ h3: { p: true },
+ h4: { p: true },
+ h5: { p: true },
+ h6: { p: true },
+ select: formTags,
+ input: formTags,
+ output: formTags,
+ button: formTags,
+ datalist: formTags,
+ textarea: formTags,
+ option: { option: true },
+ optgroup: { optgroup: true }
+};
+
+var voidElements = {
+ __proto__: null,
+ area: true,
+ base: true,
+ basefont: true,
+ br: true,
+ col: true,
+ command: true,
+ embed: true,
+ frame: true,
+ hr: true,
+ img: true,
+ input: true,
+ isindex: true,
+ keygen: true,
+ link: true,
+ meta: true,
+ param: true,
+ source: true,
+ track: true,
+ wbr: true
+};
+
+var foreignContextElements = {
+ __proto__: null,
+ math: true,
+ svg: true
+};
+var htmlIntegrationElements = {
+ __proto__: null,
+ mi: true,
+ mo: true,
+ mn: true,
+ ms: true,
+ mtext: true,
+ "annotation-xml": true,
+ foreignObject: true,
+ desc: true,
+ title: true
+};
+
+var re_nameEnd = /\s|\//;
+
+function Parser(cbs, options) {
+ this._options = options || {};
+ this._cbs = cbs || {};
+
+ this._tagname = "";
+ this._attribname = "";
+ this._attribvalue = "";
+ this._attribs = null;
+ this._stack = [];
+ this._foreignContext = [];
+
+ this.startIndex = 0;
+ this.endIndex = null;
+
+ this._lowerCaseTagNames =
+ "lowerCaseTags" in this._options
+ ? !!this._options.lowerCaseTags
+ : !this._options.xmlMode;
+ this._lowerCaseAttributeNames =
+ "lowerCaseAttributeNames" in this._options
+ ? !!this._options.lowerCaseAttributeNames
+ : !this._options.xmlMode;
+
+ if (this._options.Tokenizer) {
+ Tokenizer = this._options.Tokenizer;
+ }
+ this._tokenizer = new Tokenizer(this._options, this);
+
+ if (this._cbs.onparserinit) this._cbs.onparserinit(this);
+}
+
+require("inherits")(Parser, require("events").EventEmitter);
+
+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) {
+ this._updatePosition(1);
+ this.endIndex--;
+
+ if (this._cbs.ontext) this._cbs.ontext(data);
+};
+
+Parser.prototype.onopentagname = function(name) {
+ if (this._lowerCaseTagNames) {
+ name = name.toLowerCase();
+ }
+
+ this._tagname = name;
+
+ if (!this._options.xmlMode && name in openImpliesClose) {
+ for (
+ var el;
+ (el = this._stack[this._stack.length - 1]) in
+ openImpliesClose[name];
+ this.onclosetag(el)
+ );
+ }
+
+ if (this._options.xmlMode || !(name in voidElements)) {
+ this._stack.push(name);
+ if (name in foreignContextElements) this._foreignContext.push(true);
+ else if (name in htmlIntegrationElements)
+ this._foreignContext.push(false);
+ }
+
+ if (this._cbs.onopentagname) this._cbs.onopentagname(name);
+ if (this._cbs.onopentag) this._attribs = {};
+};
+
+Parser.prototype.onopentagend = function() {
+ this._updatePosition(1);
+
+ if (this._attribs) {
+ if (this._cbs.onopentag)
+ this._cbs.onopentag(this._tagname, this._attribs);
+ this._attribs = null;
+ }
+
+ if (
+ !this._options.xmlMode &&
+ this._cbs.onclosetag &&
+ this._tagname in voidElements
+ ) {
+ this._cbs.onclosetag(this._tagname);
+ }
+
+ this._tagname = "";
+};
+
+Parser.prototype.onclosetag = function(name) {
+ this._updatePosition(1);
+
+ if (this._lowerCaseTagNames) {
+ name = name.toLowerCase();
+ }
+
+ if (name in foreignContextElements || name in htmlIntegrationElements) {
+ this._foreignContext.pop();
+ }
+
+ if (
+ this._stack.length &&
+ (!(name in voidElements) || this._options.xmlMode)
+ ) {
+ var pos = this._stack.lastIndexOf(name);
+ if (pos !== -1) {
+ if (this._cbs.onclosetag) {
+ pos = this._stack.length - pos;
+ while (pos--) 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 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) {
+ if (this._cbs.onclosetag) {
+ this._cbs.onclosetag(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() {
+ if (this._cbs.onattribute)
+ this._cbs.onattribute(this._attribname, this._attribvalue);
+ 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(re_nameEnd),
+ 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 = this._getInstructionName(value);
+ this._cbs.onprocessinginstruction("!" + name, "!" + value);
+ }
+};
+
+Parser.prototype.onprocessinginstruction = function(value) {
+ if (this._cbs.onprocessinginstruction) {
+ var name = this._getInstructionName(value);
+ this._cbs.onprocessinginstruction("?" + name, "?" + value);
+ }
+};
+
+Parser.prototype.oncomment = function(value) {
+ this._updatePosition(4);
+
+ if (this._cbs.oncomment) this._cbs.oncomment(value);
+ if (this._cbs.oncommentend) this._cbs.oncommentend();
+};
+
+Parser.prototype.oncdata = function(value) {
+ this._updatePosition(1);
+
+ if (this._options.xmlMode || this._options.recognizeCDATA) {
+ if (this._cbs.oncdatastart) this._cbs.oncdatastart();
+ if (this._cbs.ontext) this._cbs.ontext(value);
+ if (this._cbs.oncdataend) this._cbs.oncdataend();
+ } else {
+ this.oncomment("[CDATA[" + value + "]]");
+ }
+};
+
+Parser.prototype.onerror = function(err) {
+ if (this._cbs.onerror) this._cbs.onerror(err);
+};
+
+Parser.prototype.onend = function() {
+ if (this._cbs.onclosetag) {
+ for (
+ var i = this._stack.length;
+ i > 0;
+ this._cbs.onclosetag(this._stack[--i])
+ );
+ }
+ if (this._cbs.onend) this._cbs.onend();
+};
+
+//Resets the parser to a blank state, ready to parse a new HTML document
+Parser.prototype.reset = function() {
+ if (this._cbs.onreset) this._cbs.onreset();
+ this._tokenizer.reset();
+
+ this._tagname = "";
+ this._attribname = "";
+ this._attribs = null;
+ this._stack = [];
+
+ if (this._cbs.onparserinit) this._cbs.onparserinit(this);
+};
+
+//Parses a complete HTML document and pushes it to the handler
+Parser.prototype.parseComplete = function(data) {
+ this.reset();
+ this.end(data);
+};
+
+Parser.prototype.write = function(chunk) {
+ this._tokenizer.write(chunk);
+};
+
+Parser.prototype.end = function(chunk) {
+ this._tokenizer.end(chunk);
+};
+
+Parser.prototype.pause = function() {
+ this._tokenizer.pause();
+};
+
+Parser.prototype.resume = function() {
+ this._tokenizer.resume();
+};
+
+//alias for backwards compat
+Parser.prototype.parseChunk = Parser.prototype.write;
+Parser.prototype.done = Parser.prototype.end;
+
+module.exports = Parser;
projects / dotfiles / .git / blobdiff