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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 | 3 |
4 import 'package:csslib/parser.dart' as css; | 4 import 'package:csslib/parser.dart' as css; |
| 5 import 'package:csslib/src/messages.dart'; |
5 import 'package:csslib/visitor.dart'; | 6 import 'package:csslib/visitor.dart'; |
6 | 7 |
7 const _default = const css.PreprocessorOptions( | 8 const _default = const css.PreprocessorOptions( |
8 useColors: false, | 9 useColors: false, |
9 checked: true, | 10 checked: true, |
10 warningsAsErrors: true, | 11 warningsAsErrors: true, |
11 inputFile: 'memory'); | 12 inputFile: 'memory'); |
12 | 13 |
13 /** | 14 /** |
14 * Spin-up CSS parser in checked mode to detect any problematic CSS. Normally, | 15 * Spin-up CSS parser in checked mode to detect any problematic CSS. Normally, |
15 * CSS will allow any property/value pairs regardless of validity; all of our | 16 * CSS will allow any property/value pairs regardless of validity; all of our |
16 * tests (by default) will ensure that the CSS is really valid. | 17 * tests (by default) will ensure that the CSS is really valid. |
17 */ | 18 */ |
18 StyleSheet parseCss(String cssInput, | 19 StyleSheet parseCss(String cssInput, |
19 {List errors, css.PreprocessorOptions opts}) { | 20 {List<Message> errors, css.PreprocessorOptions opts}) { |
20 return css.parse(cssInput, | 21 return css.parse(cssInput, |
21 errors: errors, options: opts == null ? _default : opts); | 22 errors: errors, options: opts == null ? _default : opts); |
22 } | 23 } |
23 | 24 |
24 // Pretty printer for CSS. | 25 // Pretty printer for CSS. |
25 var emitCss = new CssPrinter(); | 26 var emitCss = new CssPrinter(); |
26 String prettyPrint(StyleSheet ss) => | 27 String prettyPrint(StyleSheet ss) => |
27 (emitCss..visitTree(ss, pretty: true)).toString(); | 28 (emitCss..visitTree(ss, pretty: true)).toString(); |
28 | 29 |
29 main() { | 30 main() { |
30 var errors = []; | 31 var errors = <Message>[]; |
31 | 32 |
32 // Parse a simple stylesheet. | 33 // Parse a simple stylesheet. |
33 print('1. Good CSS, parsed CSS emitted:'); | 34 print('1. Good CSS, parsed CSS emitted:'); |
34 print(' ============================='); | 35 print(' ============================='); |
35 var stylesheet = parseCss( | 36 var stylesheet = parseCss( |
36 '@import "support/at-charset-019.css"; div { color: red; }' | 37 '@import "support/at-charset-019.css"; div { color: red; }' |
37 'button[type] { background-color: red; }' | 38 'button[type] { background-color: red; }' |
38 '.foo { ' | 39 '.foo { ' |
39 'color: red; left: 20px; top: 20px; width: 100px; height:200px' | 40 'color: red; left: 20px; top: 20px; width: 100px; height:200px' |
40 '}' | 41 '}' |
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87 var selectorAst = css.selector('#div .foo', errors: errors); | 88 var selectorAst = css.selector('#div .foo', errors: errors); |
88 if (!errors.isEmpty) { | 89 if (!errors.isEmpty) { |
89 print("Got ${errors.length} errors.\n"); | 90 print("Got ${errors.length} errors.\n"); |
90 for (var error in errors) { | 91 for (var error in errors) { |
91 print(error); | 92 print(error); |
92 } | 93 } |
93 } else { | 94 } else { |
94 print(prettyPrint(selectorAst)); | 95 print(prettyPrint(selectorAst)); |
95 } | 96 } |
96 } | 97 } |
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