Linter Demo

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Warnings: 1

File: /home/fstrocco/Dart/dart/benchmark/compiler/lib/src/util/command_line.dart

// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. library dart2js.util.command_line; /// The accepted escapes in the input of the --batch processor. /// /// Contrary to Dart strings it does not contain hex escapes (\u or \x). Map<String, String> ESCAPE_MAPPING = const { "n": "\n", "r": "\r", "t": "\t", "b": "\b", "f": "\f", "v": "\v", "\\": "\\", }; /// Splits the line similar to how a shell would split arguments. If [windows] /// is `true` escapes will be handled like on the Windows command-line. /// /// Example: /// /// splitline("""--args "ab"c 'with " \'spaces'""").forEach(print); /// // --args /// // abc /// // with " 'spaces List<String> splitLine(String line, {bool windows: false}) { List<String> result = <String>[]; bool inQuotes = false; String openingQuote; StringBuffer buffer = new StringBuffer(); for (int i = 0; i < line.length; i++) { String c = line[i]; if (inQuotes && c == openingQuote) { inQuotes = false; continue; } if (!inQuotes && (c == '"' || (c == "'" && !windows))) { inQuotes = true; openingQuote = c; continue; } if (c == '\\') { if (i == line.length - 1) { throw new FormatException("Unfinished escape: $line"); } if (windows) { String next = line[i+1]; if (next == '"' || next == r'\') { buffer.write(next); i++; continue; } } else { i++; c = line[i]; String mapped = ESCAPE_MAPPING[c]; if (mapped == null) mapped = c; buffer.write(mapped); continue; } } if (!inQuotes && c == " ") { if (buffer.isNotEmpty) result.add(buffer.toString()); buffer.clear(); continue; } buffer.write(c); } if (inQuotes) throw new FormatException("Unclosed quotes: $line"); if (buffer.isNotEmpty) result.add(buffer.toString()); return result; }