Index: mojo/public/dart/third_party/csslib/lib/css.dart |
diff --git a/mojo/public/dart/third_party/csslib/lib/css.dart b/mojo/public/dart/third_party/csslib/lib/css.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..590e8351c3130553368462f5a48a4938e8026fc2 |
--- /dev/null |
+++ b/mojo/public/dart/third_party/csslib/lib/css.dart |
@@ -0,0 +1,83 @@ |
+// Copyright (c) 2013, 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 css; |
+ |
+import 'dart:io'; |
+ |
+import 'package:path/path.dart' as path; |
+import 'package:source_span/source_span.dart'; |
+ |
+import 'parser.dart'; |
+import 'visitor.dart'; |
+import 'src/messages.dart'; |
+import 'src/options.dart'; |
+ |
+void main(List<String> arguments) { |
+ // TODO(jmesserly): fix this to return a proper exit code |
+ var options = PreprocessorOptions.parse(arguments); |
+ if (options == null) return; |
+ |
+ messages = new Messages(options: options); |
+ |
+ _time('Total time spent on ${options.inputFile}', () { |
+ _compile(options.inputFile, options.verbose); |
+ }, true); |
+} |
+ |
+void _compile(String inputPath, bool verbose) { |
+ var ext = path.extension(inputPath); |
+ if (ext != '.css' && ext != '.scss') { |
+ messages.error("Please provide a CSS/Sass file", null); |
+ return; |
+ } |
+ try { |
+ // Read the file. |
+ var filename = path.basename(inputPath); |
+ var contents = new File(inputPath).readAsStringSync(); |
+ var file = new SourceFile(contents, url: path.toUri(inputPath)); |
+ |
+ // Parse the CSS. |
+ var tree = _time( |
+ 'Parse $filename', () => new Parser(file, contents).parse(), verbose); |
+ |
+ _time('Analyzer $filename', () => new Analyzer([tree], messages), verbose) |
+ .run(); |
+ |
+ // Emit the processed CSS. |
+ var emitter = new CssPrinter(); |
+ _time('Codegen $filename', () => emitter.visitTree(tree, pretty: true), |
+ verbose); |
+ |
+ // Write the contents to a file. |
+ var outPath = path.join(path.dirname(inputPath), '_$filename'); |
+ new File(outPath).writeAsStringSync(emitter.toString()); |
+ } catch (e) { |
+ messages.error('error processing $inputPath. Original message:\n $e', null); |
+ } |
+} |
+ |
+_time(String message, callback(), bool printTime) { |
+ if (!printTime) return callback(); |
+ final watch = new Stopwatch(); |
+ watch.start(); |
+ var result = callback(); |
+ watch.stop(); |
+ final duration = watch.elapsedMilliseconds; |
+ _printMessage(message, duration); |
+ return result; |
+} |
+ |
+void _printMessage(String message, int duration) { |
+ var buf = new StringBuffer(); |
+ buf.write(message); |
+ for (int i = message.length; i < 60; i++) buf.write(' '); |
+ buf.write(' -- '); |
+ if (duration < 10) buf.write(' '); |
+ if (duration < 100) buf.write(' '); |
+ buf |
+ ..write(duration) |
+ ..write(' ms'); |
+ print(buf.toString()); |
+} |