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1 /* | 1 /* |
2 * Copyright (C) 2014 Google Inc. All rights reserved. | 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef Character_h | 31 #ifndef Character_h |
32 #define Character_h | 32 #define Character_h |
33 | 33 |
34 #include "platform/PlatformExport.h" | 34 #include "platform/PlatformExport.h" |
35 #include "platform/fonts/CharacterProperty.h" | |
36 #include "platform/text/TextDirection.h" | 35 #include "platform/text/TextDirection.h" |
37 #include "platform/text/TextPath.h" | 36 #include "platform/text/TextPath.h" |
38 #include "platform/text/TextRun.h" | 37 #include "platform/text/TextRun.h" |
39 #include "wtf/Allocator.h" | 38 #include "wtf/Allocator.h" |
40 #include "wtf/HashSet.h" | 39 #include "wtf/HashSet.h" |
41 #include "wtf/text/CharacterNames.h" | 40 #include "wtf/text/CharacterNames.h" |
42 #include "wtf/text/WTFString.h" | 41 #include "wtf/text/WTFString.h" |
43 | 42 |
44 namespace blink { | 43 namespace blink { |
45 | 44 |
46 class PLATFORM_EXPORT Character { | 45 class PLATFORM_EXPORT Character { |
47 STATIC_ONLY(Character); | 46 STATIC_ONLY(Character); |
48 public: | 47 public: |
49 static CodePath characterRangeCodePath(const LChar*, unsigned) { return Simp
lePath; } | 48 static CodePath characterRangeCodePath(const LChar*, unsigned) { return Simp
lePath; } |
50 static CodePath characterRangeCodePath(const UChar*, unsigned len); | 49 static CodePath characterRangeCodePath(const UChar*, unsigned len); |
51 | 50 |
52 static inline bool isInRange(UChar32 character, UChar32 lowerBound, UChar32
upperBound) | 51 static inline bool isInRange(UChar32 character, UChar32 lowerBound, UChar32
upperBound) |
53 { | 52 { |
54 return character >= lowerBound && character <= upperBound; | 53 return character >= lowerBound && character <= upperBound; |
55 } | 54 } |
56 | 55 |
57 static inline bool isUnicodeVariationSelector(UChar32 character) | 56 static inline bool isUnicodeVariationSelector(UChar32 character) |
58 { | 57 { |
59 // http://www.unicode.org/Public/UCD/latest/ucd/StandardizedVariants.htm
l | 58 // http://www.unicode.org/Public/UCD/latest/ucd/StandardizedVariants.htm
l |
60 return isInRange(character, 0x180B, 0x180D) // MONGOLIAN FREE VARIATION
SELECTOR ONE to THREE | 59 return isInRange(character, 0x180B, 0x180D) // MONGOLIAN FREE VARIATION
SELECTOR ONE to THREE |
61 || isInRange(character, 0xFE00, 0xFE0F) // VARIATION SELECTOR-1 to 1
6 | 60 || isInRange(character, 0xFE00, 0xFE0F) // VARIATION SELECTOR-1 to 1
6 |
62 || isInRange(character, 0xE0100, 0xE01EF); // VARIATION SELECTOR-17
to 256 | 61 || isInRange(character, 0xE0100, 0xE01EF); // VARIATION SELECTOR-17
to 256 |
63 } | 62 } |
64 | 63 |
| 64 static bool isCJKIdeograph(UChar32); |
65 static bool isCJKIdeographOrSymbol(UChar32); | 65 static bool isCJKIdeographOrSymbol(UChar32); |
66 | 66 |
67 static unsigned expansionOpportunityCount(const LChar*, size_t length, TextD
irection, bool& isAfterExpansion, const TextJustify); | 67 static unsigned expansionOpportunityCount(const LChar*, size_t length, TextD
irection, bool& isAfterExpansion, const TextJustify); |
68 static unsigned expansionOpportunityCount(const UChar*, size_t length, TextD
irection, bool& isAfterExpansion, const TextJustify); | 68 static unsigned expansionOpportunityCount(const UChar*, size_t length, TextD
irection, bool& isAfterExpansion, const TextJustify); |
69 | 69 |
70 static bool isUprightInMixedVertical(UChar32 character); | 70 static bool isUprightInMixedVertical(UChar32 character); |
71 | 71 |
72 static bool treatAsSpace(UChar c) | 72 static bool treatAsSpace(UChar c) |
73 { | 73 { |
74 return c == spaceCharacter | 74 return c == spaceCharacter |
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125 // This function returns true for 0x000B also, so that this is backward
compatible. | 125 // This function returns true for 0x000B also, so that this is backward
compatible. |
126 // Otherwise, the test LayoutTests/canvas/philip/tests/2d.text.draw.spac
e.collapse.space.html will fail | 126 // Otherwise, the test LayoutTests/canvas/philip/tests/2d.text.draw.spac
e.collapse.space.html will fail |
127 return c == 0x0009 || (c >= 0x000A && c <= 0x000D); | 127 return c == 0x0009 || (c >= 0x000A && c <= 0x000D); |
128 } | 128 } |
129 | 129 |
130 static String normalizeSpaces(const LChar*, unsigned length); | 130 static String normalizeSpaces(const LChar*, unsigned length); |
131 static String normalizeSpaces(const UChar*, unsigned length); | 131 static String normalizeSpaces(const UChar*, unsigned length); |
132 | 132 |
133 static bool isCommonOrInheritedScript(UChar32); | 133 static bool isCommonOrInheritedScript(UChar32); |
134 | 134 |
135 private: | |
136 static bool hasProperty(UChar32, CharacterProperty); | |
137 }; | 135 }; |
138 | 136 |
139 } // namespace blink | 137 } // namespace blink |
140 | 138 |
141 #endif | 139 #endif |
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