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83 lines
2.9 KiB
83 lines
2.9 KiB
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Initlialize namespaces.
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var devtools = devtools || {};
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devtools.profiler = devtools.profiler || {};
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/**
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* Creates a CSV lines parser.
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*/
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devtools.profiler.CsvParser = function() {
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};
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/**
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* A regex for matching a CSV field.
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* @private
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*/
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devtools.profiler.CsvParser.CSV_FIELD_RE_ = /^"((?:[^"]|"")*)"|([^,]*)/;
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/**
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* A regex for matching a double quote.
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* @private
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*/
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devtools.profiler.CsvParser.DOUBLE_QUOTE_RE_ = /""/g;
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/**
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* Parses a line of CSV-encoded values. Returns an array of fields.
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*
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* @param {string} line Input line.
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*/
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devtools.profiler.CsvParser.prototype.parseLine = function(line) {
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var fieldRe = devtools.profiler.CsvParser.CSV_FIELD_RE_;
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var doubleQuoteRe = devtools.profiler.CsvParser.DOUBLE_QUOTE_RE_;
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var pos = 0;
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var endPos = line.length;
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var fields = [];
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if (endPos > 0) {
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do {
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var fieldMatch = fieldRe.exec(line.substr(pos));
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if (typeof fieldMatch[1] === "string") {
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var field = fieldMatch[1];
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pos += field.length + 3; // Skip comma and quotes.
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fields.push(field.replace(doubleQuoteRe, '"'));
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} else {
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// The second field pattern will match anything, thus
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// in the worst case the match will be an empty string.
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var field = fieldMatch[2];
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pos += field.length + 1; // Skip comma.
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fields.push(field);
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}
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} while (pos <= endPos);
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}
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return fields;
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};
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