907 lines
25 KiB
JavaScript
907 lines
25 KiB
JavaScript
module.exports = Tokenizer;
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var decodeCodePoint = require("entities/lib/decode_codepoint.js"),
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entityMap = require("entities/maps/entities.json"),
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legacyMap = require("entities/maps/legacy.json"),
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xmlMap = require("entities/maps/xml.json"),
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i = 0,
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TEXT = i++,
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BEFORE_TAG_NAME = i++, //after <
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IN_TAG_NAME = i++,
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IN_SELF_CLOSING_TAG = i++,
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BEFORE_CLOSING_TAG_NAME = i++,
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IN_CLOSING_TAG_NAME = i++,
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AFTER_CLOSING_TAG_NAME = i++,
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//attributes
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BEFORE_ATTRIBUTE_NAME = i++,
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IN_ATTRIBUTE_NAME = i++,
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AFTER_ATTRIBUTE_NAME = i++,
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BEFORE_ATTRIBUTE_VALUE = i++,
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IN_ATTRIBUTE_VALUE_DQ = i++, // "
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IN_ATTRIBUTE_VALUE_SQ = i++, // '
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IN_ATTRIBUTE_VALUE_NQ = i++,
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//declarations
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BEFORE_DECLARATION = i++, // !
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IN_DECLARATION = i++,
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//processing instructions
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IN_PROCESSING_INSTRUCTION = i++, // ?
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//comments
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BEFORE_COMMENT = i++,
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IN_COMMENT = i++,
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AFTER_COMMENT_1 = i++,
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AFTER_COMMENT_2 = i++,
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//cdata
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BEFORE_CDATA_1 = i++, // [
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BEFORE_CDATA_2 = i++, // C
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BEFORE_CDATA_3 = i++, // D
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BEFORE_CDATA_4 = i++, // A
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BEFORE_CDATA_5 = i++, // T
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BEFORE_CDATA_6 = i++, // A
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IN_CDATA = i++, // [
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AFTER_CDATA_1 = i++, // ]
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AFTER_CDATA_2 = i++, // ]
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//special tags
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BEFORE_SPECIAL = i++, //S
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BEFORE_SPECIAL_END = i++, //S
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BEFORE_SCRIPT_1 = i++, //C
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BEFORE_SCRIPT_2 = i++, //R
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BEFORE_SCRIPT_3 = i++, //I
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BEFORE_SCRIPT_4 = i++, //P
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BEFORE_SCRIPT_5 = i++, //T
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AFTER_SCRIPT_1 = i++, //C
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AFTER_SCRIPT_2 = i++, //R
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AFTER_SCRIPT_3 = i++, //I
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AFTER_SCRIPT_4 = i++, //P
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AFTER_SCRIPT_5 = i++, //T
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BEFORE_STYLE_1 = i++, //T
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BEFORE_STYLE_2 = i++, //Y
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BEFORE_STYLE_3 = i++, //L
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BEFORE_STYLE_4 = i++, //E
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AFTER_STYLE_1 = i++, //T
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AFTER_STYLE_2 = i++, //Y
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AFTER_STYLE_3 = i++, //L
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AFTER_STYLE_4 = i++, //E
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BEFORE_ENTITY = i++, //&
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BEFORE_NUMERIC_ENTITY = i++, //#
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IN_NAMED_ENTITY = i++,
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IN_NUMERIC_ENTITY = i++,
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IN_HEX_ENTITY = i++, //X
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j = 0,
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SPECIAL_NONE = j++,
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SPECIAL_SCRIPT = j++,
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SPECIAL_STYLE = j++;
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function whitespace(c){
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return c === " " || c === "\n" || c === "\t" || c === "\f" || c === "\r";
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}
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function characterState(char, SUCCESS){
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return function(c){
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if(c === char) this._state = SUCCESS;
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};
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}
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function ifElseState(upper, SUCCESS, FAILURE){
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var lower = upper.toLowerCase();
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if(upper === lower){
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return function(c){
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if(c === lower){
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this._state = SUCCESS;
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} else {
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this._state = FAILURE;
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this._index--;
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}
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};
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} else {
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return function(c){
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if(c === lower || c === upper){
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this._state = SUCCESS;
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} else {
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this._state = FAILURE;
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this._index--;
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}
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};
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}
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}
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function consumeSpecialNameChar(upper, NEXT_STATE){
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var lower = upper.toLowerCase();
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return function(c){
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if(c === lower || c === upper){
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this._state = NEXT_STATE;
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} else {
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this._state = IN_TAG_NAME;
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this._index--; //consume the token again
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}
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};
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}
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function Tokenizer(options, cbs){
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this._state = TEXT;
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this._buffer = "";
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this._sectionStart = 0;
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this._index = 0;
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this._bufferOffset = 0; //chars removed from _buffer
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this._baseState = TEXT;
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this._special = SPECIAL_NONE;
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this._cbs = cbs;
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this._running = true;
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this._ended = false;
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this._xmlMode = !!(options && options.xmlMode);
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this._decodeEntities = !!(options && options.decodeEntities);
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}
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Tokenizer.prototype._stateText = function(c){
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if(c === "<"){
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if(this._index > this._sectionStart){
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this._cbs.ontext(this._getSection());
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}
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this._state = BEFORE_TAG_NAME;
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this._sectionStart = this._index;
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} else if(this._decodeEntities && this._special === SPECIAL_NONE && c === "&"){
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if(this._index > this._sectionStart){
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this._cbs.ontext(this._getSection());
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}
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this._baseState = TEXT;
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this._state = BEFORE_ENTITY;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateBeforeTagName = function(c){
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if(c === "/"){
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this._state = BEFORE_CLOSING_TAG_NAME;
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} else if(c === ">" || this._special !== SPECIAL_NONE || whitespace(c)) {
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this._state = TEXT;
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} else if(c === "!"){
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this._state = BEFORE_DECLARATION;
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this._sectionStart = this._index + 1;
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} else if(c === "?"){
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this._state = IN_PROCESSING_INSTRUCTION;
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this._sectionStart = this._index + 1;
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} else if(c === "<"){
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this._cbs.ontext(this._getSection());
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this._sectionStart = this._index;
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} else {
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this._state = (!this._xmlMode && (c === "s" || c === "S")) ?
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BEFORE_SPECIAL : IN_TAG_NAME;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateInTagName = function(c){
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if(c === "/" || c === ">" || whitespace(c)){
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this._emitToken("onopentagname");
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this._state = BEFORE_ATTRIBUTE_NAME;
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this._index--;
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}
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};
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Tokenizer.prototype._stateBeforeCloseingTagName = function(c){
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if(whitespace(c));
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else if(c === ">"){
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this._state = TEXT;
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} else if(this._special !== SPECIAL_NONE){
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if(c === "s" || c === "S"){
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this._state = BEFORE_SPECIAL_END;
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} else {
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this._state = TEXT;
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this._index--;
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}
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} else {
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this._state = IN_CLOSING_TAG_NAME;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateInCloseingTagName = function(c){
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if(c === ">" || whitespace(c)){
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this._emitToken("onclosetag");
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this._state = AFTER_CLOSING_TAG_NAME;
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this._index--;
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}
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};
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Tokenizer.prototype._stateAfterCloseingTagName = function(c){
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//skip everything until ">"
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if(c === ">"){
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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}
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};
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Tokenizer.prototype._stateBeforeAttributeName = function(c){
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if(c === ">"){
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this._cbs.onopentagend();
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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} else if(c === "/"){
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this._state = IN_SELF_CLOSING_TAG;
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} else if(!whitespace(c)){
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this._state = IN_ATTRIBUTE_NAME;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateInSelfClosingTag = function(c){
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if(c === ">"){
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this._cbs.onselfclosingtag();
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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} else if(!whitespace(c)){
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this._state = BEFORE_ATTRIBUTE_NAME;
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this._index--;
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}
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};
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Tokenizer.prototype._stateInAttributeName = function(c){
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if(c === "=" || c === "/" || c === ">" || whitespace(c)){
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this._cbs.onattribname(this._getSection());
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this._sectionStart = -1;
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this._state = AFTER_ATTRIBUTE_NAME;
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this._index--;
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}
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};
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Tokenizer.prototype._stateAfterAttributeName = function(c){
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if(c === "="){
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this._state = BEFORE_ATTRIBUTE_VALUE;
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} else if(c === "/" || c === ">"){
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this._cbs.onattribend();
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this._state = BEFORE_ATTRIBUTE_NAME;
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this._index--;
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} else if(!whitespace(c)){
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this._cbs.onattribend();
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this._state = IN_ATTRIBUTE_NAME;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateBeforeAttributeValue = function(c){
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if(c === "\""){
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this._state = IN_ATTRIBUTE_VALUE_DQ;
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this._sectionStart = this._index + 1;
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} else if(c === "'"){
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this._state = IN_ATTRIBUTE_VALUE_SQ;
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this._sectionStart = this._index + 1;
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} else if(!whitespace(c)){
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this._state = IN_ATTRIBUTE_VALUE_NQ;
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this._sectionStart = this._index;
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this._index--; //reconsume token
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}
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};
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Tokenizer.prototype._stateInAttributeValueDoubleQuotes = function(c){
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if(c === "\""){
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this._emitToken("onattribdata");
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this._cbs.onattribend();
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this._state = BEFORE_ATTRIBUTE_NAME;
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} else if(this._decodeEntities && c === "&"){
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this._emitToken("onattribdata");
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this._baseState = this._state;
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this._state = BEFORE_ENTITY;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateInAttributeValueSingleQuotes = function(c){
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if(c === "'"){
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this._emitToken("onattribdata");
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this._cbs.onattribend();
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this._state = BEFORE_ATTRIBUTE_NAME;
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} else if(this._decodeEntities && c === "&"){
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this._emitToken("onattribdata");
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this._baseState = this._state;
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this._state = BEFORE_ENTITY;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateInAttributeValueNoQuotes = function(c){
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if(whitespace(c) || c === ">"){
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this._emitToken("onattribdata");
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this._cbs.onattribend();
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this._state = BEFORE_ATTRIBUTE_NAME;
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this._index--;
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} else if(this._decodeEntities && c === "&"){
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this._emitToken("onattribdata");
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this._baseState = this._state;
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this._state = BEFORE_ENTITY;
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this._sectionStart = this._index;
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}
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};
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Tokenizer.prototype._stateBeforeDeclaration = function(c){
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this._state = c === "[" ? BEFORE_CDATA_1 :
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c === "-" ? BEFORE_COMMENT :
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IN_DECLARATION;
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};
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Tokenizer.prototype._stateInDeclaration = function(c){
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if(c === ">"){
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this._cbs.ondeclaration(this._getSection());
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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}
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};
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Tokenizer.prototype._stateInProcessingInstruction = function(c){
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if(c === ">"){
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this._cbs.onprocessinginstruction(this._getSection());
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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}
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};
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Tokenizer.prototype._stateBeforeComment = function(c){
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if(c === "-"){
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this._state = IN_COMMENT;
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this._sectionStart = this._index + 1;
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} else {
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this._state = IN_DECLARATION;
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}
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};
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Tokenizer.prototype._stateInComment = function(c){
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if(c === "-") this._state = AFTER_COMMENT_1;
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};
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Tokenizer.prototype._stateAfterComment1 = function(c){
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if(c === "-"){
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this._state = AFTER_COMMENT_2;
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} else {
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this._state = IN_COMMENT;
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}
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};
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Tokenizer.prototype._stateAfterComment2 = function(c){
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if(c === ">"){
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//remove 2 trailing chars
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this._cbs.oncomment(this._buffer.substring(this._sectionStart, this._index - 2));
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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} else if(c !== "-"){
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this._state = IN_COMMENT;
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}
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// else: stay in AFTER_COMMENT_2 (`--->`)
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};
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Tokenizer.prototype._stateBeforeCdata1 = ifElseState("C", BEFORE_CDATA_2, IN_DECLARATION);
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Tokenizer.prototype._stateBeforeCdata2 = ifElseState("D", BEFORE_CDATA_3, IN_DECLARATION);
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Tokenizer.prototype._stateBeforeCdata3 = ifElseState("A", BEFORE_CDATA_4, IN_DECLARATION);
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Tokenizer.prototype._stateBeforeCdata4 = ifElseState("T", BEFORE_CDATA_5, IN_DECLARATION);
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Tokenizer.prototype._stateBeforeCdata5 = ifElseState("A", BEFORE_CDATA_6, IN_DECLARATION);
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Tokenizer.prototype._stateBeforeCdata6 = function(c){
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if(c === "["){
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this._state = IN_CDATA;
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this._sectionStart = this._index + 1;
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} else {
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this._state = IN_DECLARATION;
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this._index--;
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}
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};
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Tokenizer.prototype._stateInCdata = function(c){
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if(c === "]") this._state = AFTER_CDATA_1;
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};
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Tokenizer.prototype._stateAfterCdata1 = characterState("]", AFTER_CDATA_2);
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Tokenizer.prototype._stateAfterCdata2 = function(c){
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if(c === ">"){
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//remove 2 trailing chars
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this._cbs.oncdata(this._buffer.substring(this._sectionStart, this._index - 2));
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this._state = TEXT;
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this._sectionStart = this._index + 1;
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} else if(c !== "]") {
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this._state = IN_CDATA;
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}
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//else: stay in AFTER_CDATA_2 (`]]]>`)
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};
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Tokenizer.prototype._stateBeforeSpecial = function(c){
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if(c === "c" || c === "C"){
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this._state = BEFORE_SCRIPT_1;
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} else if(c === "t" || c === "T"){
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this._state = BEFORE_STYLE_1;
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} else {
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this._state = IN_TAG_NAME;
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this._index--; //consume the token again
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}
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};
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Tokenizer.prototype._stateBeforeSpecialEnd = function(c){
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if(this._special === SPECIAL_SCRIPT && (c === "c" || c === "C")){
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this._state = AFTER_SCRIPT_1;
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} else if(this._special === SPECIAL_STYLE && (c === "t" || c === "T")){
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this._state = AFTER_STYLE_1;
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}
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else this._state = TEXT;
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};
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Tokenizer.prototype._stateBeforeScript1 = consumeSpecialNameChar("R", BEFORE_SCRIPT_2);
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Tokenizer.prototype._stateBeforeScript2 = consumeSpecialNameChar("I", BEFORE_SCRIPT_3);
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Tokenizer.prototype._stateBeforeScript3 = consumeSpecialNameChar("P", BEFORE_SCRIPT_4);
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Tokenizer.prototype._stateBeforeScript4 = consumeSpecialNameChar("T", BEFORE_SCRIPT_5);
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Tokenizer.prototype._stateBeforeScript5 = function(c){
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if(c === "/" || c === ">" || whitespace(c)){
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this._special = SPECIAL_SCRIPT;
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}
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this._state = IN_TAG_NAME;
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this._index--; //consume the token again
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};
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Tokenizer.prototype._stateAfterScript1 = ifElseState("R", AFTER_SCRIPT_2, TEXT);
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Tokenizer.prototype._stateAfterScript2 = ifElseState("I", AFTER_SCRIPT_3, TEXT);
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Tokenizer.prototype._stateAfterScript3 = ifElseState("P", AFTER_SCRIPT_4, TEXT);
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Tokenizer.prototype._stateAfterScript4 = ifElseState("T", AFTER_SCRIPT_5, TEXT);
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Tokenizer.prototype._stateAfterScript5 = function(c){
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if(c === ">" || whitespace(c)){
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this._special = SPECIAL_NONE;
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this._state = IN_CLOSING_TAG_NAME;
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this._sectionStart = this._index - 6;
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this._index--; //reconsume the token
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}
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else this._state = TEXT;
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};
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Tokenizer.prototype._stateBeforeStyle1 = consumeSpecialNameChar("Y", BEFORE_STYLE_2);
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Tokenizer.prototype._stateBeforeStyle2 = consumeSpecialNameChar("L", BEFORE_STYLE_3);
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Tokenizer.prototype._stateBeforeStyle3 = consumeSpecialNameChar("E", BEFORE_STYLE_4);
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Tokenizer.prototype._stateBeforeStyle4 = function(c){
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if(c === "/" || c === ">" || whitespace(c)){
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this._special = SPECIAL_STYLE;
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}
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this._state = IN_TAG_NAME;
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this._index--; //consume the token again
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};
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Tokenizer.prototype._stateAfterStyle1 = ifElseState("Y", AFTER_STYLE_2, TEXT);
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Tokenizer.prototype._stateAfterStyle2 = ifElseState("L", AFTER_STYLE_3, TEXT);
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Tokenizer.prototype._stateAfterStyle3 = ifElseState("E", AFTER_STYLE_4, TEXT);
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Tokenizer.prototype._stateAfterStyle4 = function(c){
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if(c === ">" || whitespace(c)){
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this._special = SPECIAL_NONE;
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this._state = IN_CLOSING_TAG_NAME;
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this._sectionStart = this._index - 5;
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this._index--; //reconsume the token
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}
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else this._state = TEXT;
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};
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Tokenizer.prototype._stateBeforeEntity = ifElseState("#", BEFORE_NUMERIC_ENTITY, IN_NAMED_ENTITY);
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Tokenizer.prototype._stateBeforeNumericEntity = ifElseState("X", IN_HEX_ENTITY, IN_NUMERIC_ENTITY);
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//for entities terminated with a semicolon
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Tokenizer.prototype._parseNamedEntityStrict = function(){
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//offset = 1
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if(this._sectionStart + 1 < this._index){
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var entity = this._buffer.substring(this._sectionStart + 1, this._index),
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map = this._xmlMode ? xmlMap : entityMap;
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|
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if(map.hasOwnProperty(entity)){
|
|
this._emitPartial(map[entity]);
|
|
this._sectionStart = this._index + 1;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
//parses legacy entities (without trailing semicolon)
|
|
Tokenizer.prototype._parseLegacyEntity = function(){
|
|
var start = this._sectionStart + 1,
|
|
limit = this._index - start;
|
|
|
|
if(limit > 6) limit = 6; //the max length of legacy entities is 6
|
|
|
|
while(limit >= 2){ //the min length of legacy entities is 2
|
|
var entity = this._buffer.substr(start, limit);
|
|
|
|
if(legacyMap.hasOwnProperty(entity)){
|
|
this._emitPartial(legacyMap[entity]);
|
|
this._sectionStart += limit + 1;
|
|
return;
|
|
} else {
|
|
limit--;
|
|
}
|
|
}
|
|
};
|
|
|
|
Tokenizer.prototype._stateInNamedEntity = function(c){
|
|
if(c === ";"){
|
|
this._parseNamedEntityStrict();
|
|
if(this._sectionStart + 1 < this._index && !this._xmlMode){
|
|
this._parseLegacyEntity();
|
|
}
|
|
this._state = this._baseState;
|
|
} else if((c < "a" || c > "z") && (c < "A" || c > "Z") && (c < "0" || c > "9")){
|
|
if(this._xmlMode);
|
|
else if(this._sectionStart + 1 === this._index);
|
|
else if(this._baseState !== TEXT){
|
|
if(c !== "="){
|
|
this._parseNamedEntityStrict();
|
|
}
|
|
} else {
|
|
this._parseLegacyEntity();
|
|
}
|
|
|
|
this._state = this._baseState;
|
|
this._index--;
|
|
}
|
|
};
|
|
|
|
Tokenizer.prototype._decodeNumericEntity = function(offset, base){
|
|
var sectionStart = this._sectionStart + offset;
|
|
|
|
if(sectionStart !== this._index){
|
|
//parse entity
|
|
var entity = this._buffer.substring(sectionStart, this._index);
|
|
var parsed = parseInt(entity, base);
|
|
|
|
this._emitPartial(decodeCodePoint(parsed));
|
|
this._sectionStart = this._index;
|
|
} else {
|
|
this._sectionStart--;
|
|
}
|
|
|
|
this._state = this._baseState;
|
|
};
|
|
|
|
Tokenizer.prototype._stateInNumericEntity = function(c){
|
|
if(c === ";"){
|
|
this._decodeNumericEntity(2, 10);
|
|
this._sectionStart++;
|
|
} else if(c < "0" || c > "9"){
|
|
if(!this._xmlMode){
|
|
this._decodeNumericEntity(2, 10);
|
|
} else {
|
|
this._state = this._baseState;
|
|
}
|
|
this._index--;
|
|
}
|
|
};
|
|
|
|
Tokenizer.prototype._stateInHexEntity = function(c){
|
|
if(c === ";"){
|
|
this._decodeNumericEntity(3, 16);
|
|
this._sectionStart++;
|
|
} else if((c < "a" || c > "f") && (c < "A" || c > "F") && (c < "0" || c > "9")){
|
|
if(!this._xmlMode){
|
|
this._decodeNumericEntity(3, 16);
|
|
} else {
|
|
this._state = this._baseState;
|
|
}
|
|
this._index--;
|
|
}
|
|
};
|
|
|
|
Tokenizer.prototype._cleanup = function (){
|
|
if(this._sectionStart < 0){
|
|
this._buffer = "";
|
|
this._index = 0;
|
|
this._bufferOffset += this._index;
|
|
} else if(this._running){
|
|
if(this._state === TEXT){
|
|
if(this._sectionStart !== this._index){
|
|
this._cbs.ontext(this._buffer.substr(this._sectionStart));
|
|
}
|
|
this._buffer = "";
|
|
this._index = 0;
|
|
this._bufferOffset += this._index;
|
|
} else if(this._sectionStart === this._index){
|
|
//the section just started
|
|
this._buffer = "";
|
|
this._index = 0;
|
|
this._bufferOffset += this._index;
|
|
} else {
|
|
//remove everything unnecessary
|
|
this._buffer = this._buffer.substr(this._sectionStart);
|
|
this._index -= this._sectionStart;
|
|
this._bufferOffset += this._sectionStart;
|
|
}
|
|
|
|
this._sectionStart = 0;
|
|
}
|
|
};
|
|
|
|
//TODO make events conditional
|
|
Tokenizer.prototype.write = function(chunk){
|
|
if(this._ended) this._cbs.onerror(Error(".write() after done!"));
|
|
|
|
this._buffer += chunk;
|
|
this._parse();
|
|
};
|
|
|
|
Tokenizer.prototype._parse = function(){
|
|
while(this._index < this._buffer.length && this._running){
|
|
var c = this._buffer.charAt(this._index);
|
|
if(this._state === TEXT) {
|
|
this._stateText(c);
|
|
} else if(this._state === BEFORE_TAG_NAME){
|
|
this._stateBeforeTagName(c);
|
|
} else if(this._state === IN_TAG_NAME) {
|
|
this._stateInTagName(c);
|
|
} else if(this._state === BEFORE_CLOSING_TAG_NAME){
|
|
this._stateBeforeCloseingTagName(c);
|
|
} else if(this._state === IN_CLOSING_TAG_NAME){
|
|
this._stateInCloseingTagName(c);
|
|
} else if(this._state === AFTER_CLOSING_TAG_NAME){
|
|
this._stateAfterCloseingTagName(c);
|
|
} else if(this._state === IN_SELF_CLOSING_TAG){
|
|
this._stateInSelfClosingTag(c);
|
|
}
|
|
|
|
/*
|
|
* attributes
|
|
*/
|
|
else if(this._state === BEFORE_ATTRIBUTE_NAME){
|
|
this._stateBeforeAttributeName(c);
|
|
} else if(this._state === IN_ATTRIBUTE_NAME){
|
|
this._stateInAttributeName(c);
|
|
} else if(this._state === AFTER_ATTRIBUTE_NAME){
|
|
this._stateAfterAttributeName(c);
|
|
} else if(this._state === BEFORE_ATTRIBUTE_VALUE){
|
|
this._stateBeforeAttributeValue(c);
|
|
} else if(this._state === IN_ATTRIBUTE_VALUE_DQ){
|
|
this._stateInAttributeValueDoubleQuotes(c);
|
|
} else if(this._state === IN_ATTRIBUTE_VALUE_SQ){
|
|
this._stateInAttributeValueSingleQuotes(c);
|
|
} else if(this._state === IN_ATTRIBUTE_VALUE_NQ){
|
|
this._stateInAttributeValueNoQuotes(c);
|
|
}
|
|
|
|
/*
|
|
* declarations
|
|
*/
|
|
else if(this._state === BEFORE_DECLARATION){
|
|
this._stateBeforeDeclaration(c);
|
|
} else if(this._state === IN_DECLARATION){
|
|
this._stateInDeclaration(c);
|
|
}
|
|
|
|
/*
|
|
* processing instructions
|
|
*/
|
|
else if(this._state === IN_PROCESSING_INSTRUCTION){
|
|
this._stateInProcessingInstruction(c);
|
|
}
|
|
|
|
/*
|
|
* comments
|
|
*/
|
|
else if(this._state === BEFORE_COMMENT){
|
|
this._stateBeforeComment(c);
|
|
} else if(this._state === IN_COMMENT){
|
|
this._stateInComment(c);
|
|
} else if(this._state === AFTER_COMMENT_1){
|
|
this._stateAfterComment1(c);
|
|
} else if(this._state === AFTER_COMMENT_2){
|
|
this._stateAfterComment2(c);
|
|
}
|
|
|
|
/*
|
|
* cdata
|
|
*/
|
|
else if(this._state === BEFORE_CDATA_1){
|
|
this._stateBeforeCdata1(c);
|
|
} else if(this._state === BEFORE_CDATA_2){
|
|
this._stateBeforeCdata2(c);
|
|
} else if(this._state === BEFORE_CDATA_3){
|
|
this._stateBeforeCdata3(c);
|
|
} else if(this._state === BEFORE_CDATA_4){
|
|
this._stateBeforeCdata4(c);
|
|
} else if(this._state === BEFORE_CDATA_5){
|
|
this._stateBeforeCdata5(c);
|
|
} else if(this._state === BEFORE_CDATA_6){
|
|
this._stateBeforeCdata6(c);
|
|
} else if(this._state === IN_CDATA){
|
|
this._stateInCdata(c);
|
|
} else if(this._state === AFTER_CDATA_1){
|
|
this._stateAfterCdata1(c);
|
|
} else if(this._state === AFTER_CDATA_2){
|
|
this._stateAfterCdata2(c);
|
|
}
|
|
|
|
/*
|
|
* special tags
|
|
*/
|
|
else if(this._state === BEFORE_SPECIAL){
|
|
this._stateBeforeSpecial(c);
|
|
} else if(this._state === BEFORE_SPECIAL_END){
|
|
this._stateBeforeSpecialEnd(c);
|
|
}
|
|
|
|
/*
|
|
* script
|
|
*/
|
|
else if(this._state === BEFORE_SCRIPT_1){
|
|
this._stateBeforeScript1(c);
|
|
} else if(this._state === BEFORE_SCRIPT_2){
|
|
this._stateBeforeScript2(c);
|
|
} else if(this._state === BEFORE_SCRIPT_3){
|
|
this._stateBeforeScript3(c);
|
|
} else if(this._state === BEFORE_SCRIPT_4){
|
|
this._stateBeforeScript4(c);
|
|
} else if(this._state === BEFORE_SCRIPT_5){
|
|
this._stateBeforeScript5(c);
|
|
}
|
|
|
|
else if(this._state === AFTER_SCRIPT_1){
|
|
this._stateAfterScript1(c);
|
|
} else if(this._state === AFTER_SCRIPT_2){
|
|
this._stateAfterScript2(c);
|
|
} else if(this._state === AFTER_SCRIPT_3){
|
|
this._stateAfterScript3(c);
|
|
} else if(this._state === AFTER_SCRIPT_4){
|
|
this._stateAfterScript4(c);
|
|
} else if(this._state === AFTER_SCRIPT_5){
|
|
this._stateAfterScript5(c);
|
|
}
|
|
|
|
/*
|
|
* style
|
|
*/
|
|
else if(this._state === BEFORE_STYLE_1){
|
|
this._stateBeforeStyle1(c);
|
|
} else if(this._state === BEFORE_STYLE_2){
|
|
this._stateBeforeStyle2(c);
|
|
} else if(this._state === BEFORE_STYLE_3){
|
|
this._stateBeforeStyle3(c);
|
|
} else if(this._state === BEFORE_STYLE_4){
|
|
this._stateBeforeStyle4(c);
|
|
}
|
|
|
|
else if(this._state === AFTER_STYLE_1){
|
|
this._stateAfterStyle1(c);
|
|
} else if(this._state === AFTER_STYLE_2){
|
|
this._stateAfterStyle2(c);
|
|
} else if(this._state === AFTER_STYLE_3){
|
|
this._stateAfterStyle3(c);
|
|
} else if(this._state === AFTER_STYLE_4){
|
|
this._stateAfterStyle4(c);
|
|
}
|
|
|
|
/*
|
|
* entities
|
|
*/
|
|
else if(this._state === BEFORE_ENTITY){
|
|
this._stateBeforeEntity(c);
|
|
} else if(this._state === BEFORE_NUMERIC_ENTITY){
|
|
this._stateBeforeNumericEntity(c);
|
|
} else if(this._state === IN_NAMED_ENTITY){
|
|
this._stateInNamedEntity(c);
|
|
} else if(this._state === IN_NUMERIC_ENTITY){
|
|
this._stateInNumericEntity(c);
|
|
} else if(this._state === IN_HEX_ENTITY){
|
|
this._stateInHexEntity(c);
|
|
}
|
|
|
|
else {
|
|
this._cbs.onerror(Error("unknown _state"), this._state);
|
|
}
|
|
|
|
this._index++;
|
|
}
|
|
|
|
this._cleanup();
|
|
};
|
|
|
|
Tokenizer.prototype.pause = function(){
|
|
this._running = false;
|
|
};
|
|
Tokenizer.prototype.resume = function(){
|
|
this._running = true;
|
|
|
|
if(this._index < this._buffer.length){
|
|
this._parse();
|
|
}
|
|
if(this._ended){
|
|
this._finish();
|
|
}
|
|
};
|
|
|
|
Tokenizer.prototype.end = function(chunk){
|
|
if(this._ended) this._cbs.onerror(Error(".end() after done!"));
|
|
if(chunk) this.write(chunk);
|
|
|
|
this._ended = true;
|
|
|
|
if(this._running) this._finish();
|
|
};
|
|
|
|
Tokenizer.prototype._finish = function(){
|
|
//if there is remaining data, emit it in a reasonable way
|
|
if(this._sectionStart < this._index){
|
|
this._handleTrailingData();
|
|
}
|
|
|
|
this._cbs.onend();
|
|
};
|
|
|
|
Tokenizer.prototype._handleTrailingData = function(){
|
|
var data = this._buffer.substr(this._sectionStart);
|
|
|
|
if(this._state === IN_CDATA || this._state === AFTER_CDATA_1 || this._state === AFTER_CDATA_2){
|
|
this._cbs.oncdata(data);
|
|
} else if(this._state === IN_COMMENT || this._state === AFTER_COMMENT_1 || this._state === AFTER_COMMENT_2){
|
|
this._cbs.oncomment(data);
|
|
} else if(this._state === IN_NAMED_ENTITY && !this._xmlMode){
|
|
this._parseLegacyEntity();
|
|
if(this._sectionStart < this._index){
|
|
this._state = this._baseState;
|
|
this._handleTrailingData();
|
|
}
|
|
} else if(this._state === IN_NUMERIC_ENTITY && !this._xmlMode){
|
|
this._decodeNumericEntity(2, 10);
|
|
if(this._sectionStart < this._index){
|
|
this._state = this._baseState;
|
|
this._handleTrailingData();
|
|
}
|
|
} else if(this._state === IN_HEX_ENTITY && !this._xmlMode){
|
|
this._decodeNumericEntity(3, 16);
|
|
if(this._sectionStart < this._index){
|
|
this._state = this._baseState;
|
|
this._handleTrailingData();
|
|
}
|
|
} else if(
|
|
this._state !== IN_TAG_NAME &&
|
|
this._state !== BEFORE_ATTRIBUTE_NAME &&
|
|
this._state !== BEFORE_ATTRIBUTE_VALUE &&
|
|
this._state !== AFTER_ATTRIBUTE_NAME &&
|
|
this._state !== IN_ATTRIBUTE_NAME &&
|
|
this._state !== IN_ATTRIBUTE_VALUE_SQ &&
|
|
this._state !== IN_ATTRIBUTE_VALUE_DQ &&
|
|
this._state !== IN_ATTRIBUTE_VALUE_NQ &&
|
|
this._state !== IN_CLOSING_TAG_NAME
|
|
){
|
|
this._cbs.ontext(data);
|
|
}
|
|
//else, ignore remaining data
|
|
//TODO add a way to remove current tag
|
|
};
|
|
|
|
Tokenizer.prototype.reset = function(){
|
|
Tokenizer.call(this, {xmlMode: this._xmlMode, decodeEntities: this._decodeEntities}, this._cbs);
|
|
};
|
|
|
|
Tokenizer.prototype.getAbsoluteIndex = function(){
|
|
return this._bufferOffset + this._index;
|
|
};
|
|
|
|
Tokenizer.prototype._getSection = function(){
|
|
return this._buffer.substring(this._sectionStart, this._index);
|
|
};
|
|
|
|
Tokenizer.prototype._emitToken = function(name){
|
|
this._cbs[name](this._getSection());
|
|
this._sectionStart = -1;
|
|
};
|
|
|
|
Tokenizer.prototype._emitPartial = function(value){
|
|
if(this._baseState !== TEXT){
|
|
this._cbs.onattribdata(value); //TODO implement the new event
|
|
} else {
|
|
this._cbs.ontext(value);
|
|
}
|
|
};
|