forked from enviPath/enviPy
99 lines
3.3 KiB
JavaScript
Executable File
99 lines
3.3 KiB
JavaScript
Executable File
/*
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* The Original Code is Mozilla Universal charset detector code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* António Afonso (antonio.afonso gmail.com) - port to JavaScript
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* Mark Pilgrim - port to Python
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* Shy Shalom - original C code
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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!function(jschardet) {
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jschardet.EscCharSetProber = function() {
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jschardet.CharSetProber.apply(this);
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var self = this;
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function init() {
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self._mCodingSM = [
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new jschardet.CodingStateMachine(jschardet.HZSMModel),
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new jschardet.CodingStateMachine(jschardet.ISO2022CNSMModel),
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new jschardet.CodingStateMachine(jschardet.ISO2022JPSMModel),
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new jschardet.CodingStateMachine(jschardet.ISO2022KRSMModel)
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];
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self.reset();
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}
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this.reset = function() {
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jschardet.EscCharSetProber.prototype.reset.apply(this);
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for( var i = 0, codingSM; codingSM = this._mCodingSM[i]; i++ ) {
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if( !codingSM ) continue;
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codingSM.active = true;
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codingSM.reset();
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}
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this._mActiveSM = self._mCodingSM.length;
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this._mDetectedCharset = null;
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}
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this.getCharsetName = function() {
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return this._mDetectedCharset;
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}
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this.getConfidence = function() {
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if( this._mDetectedCharset ) {
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return 0.99;
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} else {
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return 0.00;
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}
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}
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this.feed = function(aBuf) {
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for( var i = 0, c; i < aBuf.length; i++ ) {
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c = aBuf[i];
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for( var j = 0, codingSM; codingSM = this._mCodingSM[j]; j++ ) {
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if( !codingSM || !codingSM.active ) continue;
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var codingState = codingSM.nextState(c);
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if( codingState == jschardet.Constants.error ) {
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codingSM.active = false;
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this._mActiveSM--;
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if( this._mActiveSM <= 0 ) {
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this._mState = jschardet.Constants.notMe;
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return this.getState();
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}
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} else if( codingState == jschardet.Constants.itsMe ) {
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this._mState = jschardet.Constants.foundIt;
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this._mDetectedCharset = codingSM.getCodingStateMachine();
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return this.getState();
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}
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}
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}
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return this.getState();
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}
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init();
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}
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jschardet.EscCharSetProber.prototype = new jschardet.CharSetProber();
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}(require('./init'));
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