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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/css/parser/CSSParserTokenRange.h" | 5 #include "core/css/parser/CSSParserTokenRange.h" |
6 | 6 |
7 #include "wtf/StaticConstructors.h" | 7 #include "wtf/StaticConstructors.h" |
8 #include "wtf/text/StringBuilder.h" | 8 #include "wtf/text/StringBuilder.h" |
9 | 9 |
10 namespace blink { | 10 namespace blink { |
(...skipping 10 matching lines...) Expand all Loading... |
21 if (first == &staticEOFToken) | 21 if (first == &staticEOFToken) |
22 first = m_last; | 22 first = m_last; |
23 if (last == &staticEOFToken) | 23 if (last == &staticEOFToken) |
24 last = m_last; | 24 last = m_last; |
25 ASSERT(first <= last); | 25 ASSERT(first <= last); |
26 return CSSParserTokenRange(first, last); | 26 return CSSParserTokenRange(first, last); |
27 } | 27 } |
28 | 28 |
29 CSSParserTokenRange CSSParserTokenRange::consumeBlock() | 29 CSSParserTokenRange CSSParserTokenRange::consumeBlock() |
30 { | 30 { |
31 ASSERT(peek().blockType() == CSSParserToken::BlockStart); | 31 ASSERT(peek().getBlockType() == CSSParserToken::BlockStart); |
32 const CSSParserToken* start = &peek() + 1; | 32 const CSSParserToken* start = &peek() + 1; |
33 unsigned nestingLevel = 0; | 33 unsigned nestingLevel = 0; |
34 do { | 34 do { |
35 const CSSParserToken& token = consume(); | 35 const CSSParserToken& token = consume(); |
36 if (token.blockType() == CSSParserToken::BlockStart) | 36 if (token.getBlockType() == CSSParserToken::BlockStart) |
37 nestingLevel++; | 37 nestingLevel++; |
38 else if (token.blockType() == CSSParserToken::BlockEnd) | 38 else if (token.getBlockType() == CSSParserToken::BlockEnd) |
39 nestingLevel--; | 39 nestingLevel--; |
40 } while (nestingLevel && m_first < m_last); | 40 } while (nestingLevel && m_first < m_last); |
41 | 41 |
42 if (nestingLevel) | 42 if (nestingLevel) |
43 return makeSubRange(start, m_first); // Ended at EOF | 43 return makeSubRange(start, m_first); // Ended at EOF |
44 return makeSubRange(start, m_first - 1); | 44 return makeSubRange(start, m_first - 1); |
45 } | 45 } |
46 | 46 |
47 void CSSParserTokenRange::consumeComponentValue() | 47 void CSSParserTokenRange::consumeComponentValue() |
48 { | 48 { |
49 // FIXME: This is going to do multiple passes over large sections of a style
sheet. | 49 // FIXME: This is going to do multiple passes over large sections of a style
sheet. |
50 // We should consider optimising this by precomputing where each block ends. | 50 // We should consider optimising this by precomputing where each block ends. |
51 unsigned nestingLevel = 0; | 51 unsigned nestingLevel = 0; |
52 do { | 52 do { |
53 const CSSParserToken& token = consume(); | 53 const CSSParserToken& token = consume(); |
54 if (token.blockType() == CSSParserToken::BlockStart) | 54 if (token.getBlockType() == CSSParserToken::BlockStart) |
55 nestingLevel++; | 55 nestingLevel++; |
56 else if (token.blockType() == CSSParserToken::BlockEnd) | 56 else if (token.getBlockType() == CSSParserToken::BlockEnd) |
57 nestingLevel--; | 57 nestingLevel--; |
58 } while (nestingLevel && m_first < m_last); | 58 } while (nestingLevel && m_first < m_last); |
59 } | 59 } |
60 | 60 |
61 String CSSParserTokenRange::serialize() const | 61 String CSSParserTokenRange::serialize() const |
62 { | 62 { |
63 // We're supposed to insert comments between certain pairs of token types | 63 // We're supposed to insert comments between certain pairs of token types |
64 // as per spec, but since this is currently only used for @supports CSSOM | 64 // as per spec, but since this is currently only used for @supports CSSOM |
65 // we just get these cases wrong and avoid the additional complexity. | 65 // we just get these cases wrong and avoid the additional complexity. |
66 StringBuilder builder; | 66 StringBuilder builder; |
67 for (const CSSParserToken* it = m_first; it < m_last; ++it) | 67 for (const CSSParserToken* it = m_first; it < m_last; ++it) |
68 it->serialize(builder); | 68 it->serialize(builder); |
69 return builder.toString(); | 69 return builder.toString(); |
70 } | 70 } |
71 | 71 |
72 } // namespace blink | 72 } // namespace blink |
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