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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MediaQueryTokenizer_h | |
6 #define MediaQueryTokenizer_h | |
7 | |
8 #include "core/css/parser/MediaQueryToken.h" | |
9 #include "core/html/parser/InputStreamPreprocessor.h" | |
10 #include "wtf/text/WTFString.h" | |
11 | |
12 #include <climits> | |
13 | |
14 namespace WebCore { | |
15 | |
16 class MediaQueryInputStream; | |
17 | |
18 class MediaQueryTokenizer { | |
19 WTF_MAKE_NONCOPYABLE(MediaQueryTokenizer); | |
20 WTF_MAKE_FAST_ALLOCATED; | |
21 public: | |
22 static void tokenize(String, Vector<MediaQueryToken>&); | |
23 | |
24 private: | |
25 class CodePoints; | |
26 | |
27 MediaQueryTokenizer(MediaQueryInputStream&); | |
28 | |
29 MediaQueryToken nextToken(); | |
30 | |
31 UChar consume(); | |
32 void consume(unsigned); | |
33 void reconsume(UChar); | |
34 | |
35 MediaQueryToken consumeNumericToken(); | |
36 MediaQueryToken consumeIdentLikeToken(); | |
37 MediaQueryToken consumeNumber(); | |
38 | |
39 void consumeUntilNonWhitespace(); | |
40 | |
41 bool consumeIfNext(UChar); | |
42 String consumeName(); | |
43 UChar consumeEscape(); | |
44 | |
45 bool nextTwoCharsAreValidEscape(); | |
46 bool nextCharsAreNumber(); | |
47 bool nextCharsAreIdentifier(); | |
48 | |
49 typedef MediaQueryToken (MediaQueryTokenizer::*CodePoint)(UChar); | |
50 | |
51 MediaQueryToken whiteSpace(UChar); | |
52 MediaQueryToken leftParenthesis(UChar); | |
53 MediaQueryToken rightParenthesis(UChar); | |
54 MediaQueryToken plusOrFullStop(UChar); | |
55 MediaQueryToken comma(UChar); | |
56 MediaQueryToken hyphenMinus(UChar); | |
57 MediaQueryToken solidus(UChar); | |
58 MediaQueryToken colon(UChar); | |
59 MediaQueryToken semiColon(UChar); | |
60 MediaQueryToken reverseSolidus(UChar); | |
61 MediaQueryToken asciiDigit(UChar); | |
62 MediaQueryToken nameStart(UChar); | |
63 MediaQueryToken endOfFile(UChar); | |
64 | |
65 CodePoints* codePoints(); | |
66 | |
67 MediaQueryInputStream& m_input; | |
68 }; | |
69 | |
70 | |
71 | |
72 } // namespace WebCore | |
73 | |
74 #endif // MediaQueryTokenizer_h | |
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