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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 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library csslib.parser; | 5 library csslib.parser; |
6 | 6 |
7 import 'dart:math' as math; | 7 import 'dart:math' as math; |
8 | 8 |
9 import 'package:source_span/source_span.dart'; | 9 import 'package:source_span/source_span.dart'; |
10 | 10 |
11 import "visitor.dart"; | 11 import "visitor.dart"; |
12 import 'src/messages.dart'; | 12 import 'src/messages.dart'; |
13 import 'src/options.dart'; | 13 import 'src/options.dart'; |
14 | 14 |
| 15 export 'src/options.dart'; |
| 16 |
15 part 'src/analyzer.dart'; | 17 part 'src/analyzer.dart'; |
16 part 'src/polyfill.dart'; | 18 part 'src/polyfill.dart'; |
17 part 'src/property.dart'; | 19 part 'src/property.dart'; |
18 part 'src/token.dart'; | 20 part 'src/token.dart'; |
19 part 'src/tokenizer_base.dart'; | 21 part 'src/tokenizer_base.dart'; |
20 part 'src/tokenizer.dart'; | 22 part 'src/tokenizer.dart'; |
21 part 'src/tokenkind.dart'; | 23 part 'src/tokenkind.dart'; |
22 | 24 |
23 /** Used for parser lookup ahead (used for nested selectors Less support). */ | 25 /** Used for parser lookup ahead (used for nested selectors Less support). */ |
24 class ParserState extends TokenizerState { | 26 class ParserState extends TokenizerState { |
25 final Token peekToken; | 27 final Token peekToken; |
26 final Token previousToken; | 28 final Token previousToken; |
27 | 29 |
28 ParserState(this.peekToken, this.previousToken, Tokenizer tokenizer) | 30 ParserState(this.peekToken, this.previousToken, Tokenizer tokenizer) |
29 : super(tokenizer); | 31 : super(tokenizer); |
30 } | 32 } |
31 | 33 |
32 // TODO(jmesserly): this should not be global | 34 // TODO(jmesserly): this should not be global |
33 void _createMessages({List<Message> errors, List<String> options}) { | 35 void _createMessages({List<Message> errors, PreprocessorOptions options}) { |
34 if (errors == null) errors = []; | 36 if (errors == null) errors = []; |
35 | 37 |
36 if (options == null) { | 38 if (options == null) { |
37 options = ['--no-colors', 'memory']; | 39 options = new PreprocessorOptions(useColors: false, inputFile: 'memory'); |
38 } | 40 } |
39 var opt = PreprocessorOptions.parse(options); | 41 |
40 messages = new Messages(options: opt, printHandler: errors.add); | 42 messages = new Messages(options: options, printHandler: errors.add); |
41 } | 43 } |
42 | 44 |
43 /** CSS checked mode enabled. */ | 45 /** CSS checked mode enabled. */ |
44 bool get isChecked => messages.options.checked; | 46 bool get isChecked => messages.options.checked; |
45 | 47 |
46 // TODO(terry): Remove nested name parameter. | 48 // TODO(terry): Remove nested name parameter. |
47 /** Parse and analyze the CSS file. */ | 49 /** Parse and analyze the CSS file. */ |
48 StyleSheet compile(input, {List<Message> errors, List<String> options, | 50 StyleSheet compile(input, {List<Message> errors, PreprocessorOptions options, |
49 bool nested: true, bool polyfill: false, List<StyleSheet> includes: null}) { | 51 bool nested: true, bool polyfill: false, List<StyleSheet> includes: null}) { |
50 if (includes == null) { | 52 if (includes == null) { |
51 includes = []; | 53 includes = []; |
52 } | 54 } |
53 | 55 |
54 var source = _inputAsString(input); | 56 var source = _inputAsString(input); |
55 | 57 |
56 _createMessages(errors: errors, options: options); | 58 _createMessages(errors: errors, options: options); |
57 | 59 |
58 var file = new SourceFile(source); | 60 var file = new SourceFile(source); |
59 | 61 |
60 var tree = new _Parser(file, source).parse(); | 62 var tree = new _Parser(file, source).parse(); |
61 | 63 |
62 analyze([tree], errors: errors, options: options); | 64 analyze([tree], errors: errors, options: options); |
63 | 65 |
64 if (polyfill) { | 66 if (polyfill) { |
65 var processCss = new PolyFill(messages, true); | 67 var processCss = new PolyFill(messages, true); |
66 processCss.process(tree, includes: includes); | 68 processCss.process(tree, includes: includes); |
67 } | 69 } |
68 | 70 |
69 return tree; | 71 return tree; |
70 } | 72 } |
71 | 73 |
72 /** Analyze the CSS file. */ | 74 /** Analyze the CSS file. */ |
73 void analyze(List<StyleSheet> styleSheets, | 75 void analyze(List<StyleSheet> styleSheets, |
74 {List<Message> errors, List<String> options}) { | 76 {List<Message> errors, PreprocessorOptions options}) { |
75 _createMessages(errors: errors, options: options); | 77 _createMessages(errors: errors, options: options); |
76 new Analyzer(styleSheets, messages).run(); | 78 new Analyzer(styleSheets, messages).run(); |
77 } | 79 } |
78 | 80 |
79 /** | 81 /** |
80 * Parse the [input] CSS stylesheet into a tree. The [input] can be a [String], | 82 * Parse the [input] CSS stylesheet into a tree. The [input] can be a [String], |
81 * or [List<int>] of bytes and returns a [StyleSheet] AST. The optional | 83 * or [List<int>] of bytes and returns a [StyleSheet] AST. The optional |
82 * [errors] list will contain each error/warning as a [Message]. | 84 * [errors] list will contain each error/warning as a [Message]. |
83 */ | 85 */ |
84 StyleSheet parse(input, {List<Message> errors, List<String> options}) { | 86 StyleSheet parse(input, {List<Message> errors, PreprocessorOptions options}) { |
85 var source = _inputAsString(input); | 87 var source = _inputAsString(input); |
86 | 88 |
87 _createMessages(errors: errors, options: options); | 89 _createMessages(errors: errors, options: options); |
88 | 90 |
89 var file = new SourceFile(source); | 91 var file = new SourceFile(source); |
90 return new _Parser(file, source).parse(); | 92 return new _Parser(file, source).parse(); |
91 } | 93 } |
92 | 94 |
93 /** | 95 /** |
94 * Parse the [input] CSS selector into a tree. The [input] can be a [String], | 96 * Parse the [input] CSS selector into a tree. The [input] can be a [String], |
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2688 | 2690 |
2689 if (replace != null && result == null) { | 2691 if (replace != null && result == null) { |
2690 result = new StringBuffer(text.substring(0, i)); | 2692 result = new StringBuffer(text.substring(0, i)); |
2691 } | 2693 } |
2692 | 2694 |
2693 if (result != null) result.write(replace != null ? replace : text[i]); | 2695 if (result != null) result.write(replace != null ? replace : text[i]); |
2694 } | 2696 } |
2695 | 2697 |
2696 return result == null ? text : result.toString(); | 2698 return result == null ? text : result.toString(); |
2697 } | 2699 } |
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