| // Copyright 2009 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| // Initlialize namespaces. |
| var devtools = devtools || {}; |
| devtools.profiler = devtools.profiler || {}; |
| |
| |
| /** |
| * Creates a CSV lines parser. |
| */ |
| devtools.profiler.CsvParser = function() { |
| }; |
| |
| |
| /** |
| * A regex for matching a trailing quote. |
| * @private |
| */ |
| devtools.profiler.CsvParser.TRAILING_QUOTE_RE_ = /\"$/; |
| |
| |
| /** |
| * A regex for matching a double quote. |
| * @private |
| */ |
| devtools.profiler.CsvParser.DOUBLE_QUOTE_RE_ = /\"\"/g; |
| |
| |
| /** |
| * Parses a line of CSV-encoded values. Returns an array of fields. |
| * |
| * @param {string} line Input line. |
| */ |
| devtools.profiler.CsvParser.prototype.parseLine = function(line) { |
| var insideQuotes = false; |
| var fields = []; |
| var prevPos = 0; |
| for (var i = 0, n = line.length; i < n; ++i) { |
| switch (line.charAt(i)) { |
| case ',': |
| if (!insideQuotes) { |
| fields.push(line.substring(prevPos, i)); |
| prevPos = i + 1; |
| } |
| break; |
| case '"': |
| if (!insideQuotes) { |
| insideQuotes = true; |
| // Skip the leading quote. |
| prevPos++; |
| } else { |
| if (i + 1 < n && line.charAt(i + 1) != '"') { |
| insideQuotes = false; |
| } else { |
| i++; |
| } |
| } |
| break; |
| } |
| } |
| if (n > 0) { |
| fields.push(line.substring(prevPos)); |
| } |
| |
| for (i = 0; i < fields.length; ++i) { |
| // Eliminate trailing quotes. |
| fields[i] = fields[i].replace(devtools.profiler.CsvParser.TRAILING_QUOTE_RE_, ''); |
| // Convert quoted quotes into single ones. |
| fields[i] = fields[i].replace(devtools.profiler.CsvParser.DOUBLE_QUOTE_RE_, '"'); |
| } |
| return fields; |
| }; |