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349 lines
11 KiB
JavaScript
349 lines
11 KiB
JavaScript
/*
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Copyright 2008-2011 Clipperz Srl
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This file is part of Clipperz's Javascript Crypto Library.
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Javascript Crypto Library provides web developers with an extensive
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and efficient set of cryptographic functions. The library aims to
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obtain maximum execution speed while preserving modularity and
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reusability.
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For further information about its features and functionalities please
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refer to http://www.clipperz.com
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* Javascript Crypto Library is free software: you can redistribute
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it and/or modify it under the terms of the GNU Affero General Public
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License as published by the Free Software Foundation, either version
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3 of the License, or (at your option) any later version.
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* Javascript Crypto Library is distributed in the hope that it will
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be useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU Affero General Public
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License along with Javascript Crypto Library. If not, see
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<http://www.gnu.org/licenses/>.
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*/
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if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
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Clipperz.CSVProcessor = function(args) {
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args = args || {};
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// this._status = undefined;
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// this._error_input = undefined;
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// this._string = undefined;
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// this._fields = undefined;
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this._quoteChar = args['quoteChar'] || "\042";
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this._eol = args['eol'] || "";
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this._escapeChar = args['escapeChar'] || "\042";
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this._separatorChar = args['separatorChar'] || ",";
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this._binary = args['binary'] || false;
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this._alwaysQuote = args['alwaysQuote'] || false;
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return this;
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}
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//=============================================================================
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Clipperz.CSVProcessor.prototype = MochiKit.Base.update(null, {
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//-------------------------------------------------------------------------
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'quoteChar': function() {
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return this._quoteChar;
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},
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//-------------------------------------------------------------------------
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'eol': function() {
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return this._eol;
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},
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//-------------------------------------------------------------------------
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'escapeChar': function() {
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return this._escapeChar;
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},
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//-------------------------------------------------------------------------
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'separatorChar': function() {
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return this._separatorChar;
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},
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'setSeparatorChar': function(aValue) {
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this._separatorChar = aValue;
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},
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//-------------------------------------------------------------------------
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'binary': function() {
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return this._binary;
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},
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//-------------------------------------------------------------------------
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'alwaysQuote': function() {
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return this._alwaysQuote;
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},
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//-------------------------------------------------------------------------
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/*
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'parse': function(aValue) {
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var result;
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var lines;
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var parameter;
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//MochiKit.Logging.logDebug(">>> CSVProcessor.parse");
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result = [];
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lines = aValue.replace(/\r?\n/g, "\n").replace(/^\n* /g, "").replace(/\n$/g, "");;
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parameter = {
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line: lines
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}
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do {
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var fields;
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fields = this.parseLine(parameter);
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if (fields != null) {
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result.push(fields);
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}
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parameter.line = parameter.line.replace(/^\n* /g, "").replace(/\n$/g, "");
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//MochiKit.Logging.logDebug("line: '" + parameter.line + "'");
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} while (parameter.line != "");
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//MochiKit.Logging.logDebug("--- CSVProcessor.parse - result: " + Clipperz.Base.serializeJSON(result));
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//MochiKit.Logging.logDebug("<<< CSVProcessor.parse");
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return result;
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},
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*/
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//-------------------------------------------------------------------------
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'deferredParse_core': function(aContext) {
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var deferredResult;
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if (aContext.line == "") {
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deferredResult = MochiKit.Async.succeed(aContext.result);
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} else {
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var fields;
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fields = this.parseLine(aContext);
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if (fields != null) {
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aContext.result.push(fields);
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}
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aContext.line = aContext.line.replace(/^\n*/g, "").replace(/\n$/g, "");
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deferredResult = new MochiKit.Async.Deferred();
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deferredResult.addCallback(Clipperz.NotificationCenter.deferredNotification, this, 'importProcessorProgressUpdate', {status:'processing', size:aContext.size, progress:(aContext.size - aContext.line.length)});
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deferredResult.addCallback(MochiKit.Async.wait, 0.2);
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deferredResult.addCallback(MochiKit.Base.method(this, 'deferredParse_core'))
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deferredResult.callback(aContext);
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}
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return deferredResult;
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},
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//.........................................................................
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'deferredParse': function(aValue) {
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var deferredResult;
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var lines;
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var context;
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lines = aValue.replace(/\r?\n/g, "\n").replace(/^\n*/g, "").replace(/\n$/g, "");
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context = {
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line: lines,
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size: lines.length,
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result: []
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}
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deferredResult = new MochiKit.Async.Deferred();
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deferredResult.addCallback(MochiKit.Base.method(this, 'deferredParse_core'));
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deferredResult.callback(context);
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return deferredResult;
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},
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//-------------------------------------------------------------------------
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'parseLine': function(aParameter) {
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var result;
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var palatable;
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var line;
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var processedField;
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result = [];
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do {
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processedField = this.parseField(aParameter);
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if (processedField != null) {
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result.push(processedField)
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};
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} while (processedField != null);
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return result;
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},
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//-------------------------------------------------------------------------
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'parseField': function(aParameter) {
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var result;
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var inQuotes;
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var validRegExp;
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var singleQuoteBeginRegexp;
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var escapedQuoteBeginRegexp;
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var singleQuoteCommaEndRegexp;
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var singleQuoteNewLineEndRegexp;
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var commaBeginRegexp;
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var newlineRegexp;
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singleQuoteBeginRegexp = new RegExp("^" + '\\' + this.quoteChar());
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escapedQuoteBeginRegexp = new RegExp("^" + '\\' + this.escapeChar() + '\\' + this.quoteChar());
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singleQuoteCommaEndRegexp = new RegExp("^" + '\\' + this.quoteChar() + '\\' + this.separatorChar());
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singleQuoteNewLineEndRegexp = new RegExp("^" + '\\' + this.quoteChar() + "\n");
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commaBeginRegexp = new RegExp("^" + '\\' + this.separatorChar());
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newlineRegexp = new RegExp("^\n");
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inQuotes = false;
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//MochiKit.Logging.logDebug("#################################### '" + aParameter.line + "'");
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if (aParameter.line == "") {
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if (aParameter.isThereAnEmptyFinalField == true) {
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aParameter.isThereAnEmptyFinalField = false;
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result = "";
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} else {
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result = null;
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}
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} else {
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if (this.binary()) {
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validRegexp = /^./;
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// validRegexp = /^[^\\]/;
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} else {
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validRegexp = /^[\t\040-\176]/;
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}
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try {
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var done;
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done = false;
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result = "";
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while (!done) {
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if (aParameter.line.length < 1) {
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//MochiKit.Logging.logDebug("---> 1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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if (inQuotes == true) {
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//MochiKit.Logging.logDebug("---> 1.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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throw new Error("CSV Parsing error; end of string, missing closing double-quote...");
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} else {
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//MochiKit.Logging.logDebug("---> 1.2: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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done = true;
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}
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} else if (escapedQuoteBeginRegexp.test(aParameter.line)) {
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//MochiKit.Logging.logDebug("---> 2.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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result += this.quoteChar();
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aParameter.line = aParameter.line.substr(2, aParameter.line.length - 1);
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//MochiKit.Logging.logDebug("<--- 2.2: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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} else if (singleQuoteBeginRegexp.test(aParameter.line)) {
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//MochiKit.Logging.logDebug("---> 3: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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if (inQuotes == true) {
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if (aParameter.line.length == 1) {
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//MochiKit.Logging.logDebug("---> 3.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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aParameter.line = '';
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done = true;
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} else if (singleQuoteCommaEndRegexp.test(aParameter.line)) {
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//MochiKit.Logging.logDebug("---> 3.3: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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aParameter.line = aParameter.line.substr(2, aParameter.line.length - 1);
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done = true;
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//MochiKit.Logging.logDebug("<--- 3.3: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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} else if (singleQuoteNewLineEndRegexp.test(aParameter.line)) {
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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done = true;
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} else {
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throw new Error("CSV Parsing error; double-quote, followed by undesirable character (bad character sequence)... " + aParameter.line);
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}
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} else {
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//MochiKit.Logging.logDebug("---> 4: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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if (result == "") {
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//MochiKit.Logging.logDebug("---> 4.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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inQuotes = true;
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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//MochiKit.Logging.logDebug("<--- 4.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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} else {
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throw new Error("CSV Parsing error; double-quote, outside of double-quotes (bad character sequence)...");
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}
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}
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} else if (commaBeginRegexp.test(aParameter.line)) {
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//MochiKit.Logging.logDebug("---> 5: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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if (inQuotes) {
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//MochiKit.Logging.logDebug("---> 5.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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result += aParameter.line.substr(0 ,1);
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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//MochiKit.Logging.logDebug("<--- 5.1: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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} else {
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//MochiKit.Logging.logDebug("---> 5.2: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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if (newlineRegexp.test(aParameter.line) || aParameter.line == "") {
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//MochiKit.Logging.logDebug("######");
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aParameter.isThereAnEmptyFinalField = true;
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};
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done = true;
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//MochiKit.Logging.logDebug("<--- 5.2: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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}
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} else if (validRegexp.test(aParameter.line)) {
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//MochiKit.Logging.logDebug("---> 6: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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result += aParameter.line.substr(0, 1);
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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//MochiKit.Logging.logDebug("<--- 6: '" + aParameter.line.replace(/\n/g, "\\n") + "'");
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} else if (newlineRegexp.test(aParameter.line)) {
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if (inQuotes == true) {
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result += aParameter.line.substr(0 ,1);
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aParameter.line = aParameter.line.substr(1, aParameter.line.length - 1);
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} else {
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if (result == "") {
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if (aParameter.isThereAnEmptyFinalField == true) {
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aParameter.isThereAnEmptyFinalField = false;
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} else {
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result = null;
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}
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}
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done = true;
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}
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} else {
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throw new Error("CSV Parsing error; an undesirable character... '" + aParameter.line.substr(0,1) + "'");
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}
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}
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} catch(exception) {
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MochiKit.Logging.logError(exception.message);
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// result = null;
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throw exception;
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}
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}
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//if (result != null) {
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// MochiKit.Logging.logDebug("<=== result: '" + result.replace(/\n/g, "\\n") + "'");
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//} else {
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// MochiKit.Logging.logDebug("<=== result: NULL");
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//}
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return result;
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},
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//-------------------------------------------------------------------------
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__syntaxFix__: "syntax fix"
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});
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