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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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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/text/TextDirection.h" | 35 #include "platform/text/TextDirection.h" |
36 #include "platform/text/TextPath.h" | 36 #include "platform/text/TextPath.h" |
| 37 #include "platform/text/TextRun.h" |
37 #include "wtf/HashSet.h" | 38 #include "wtf/HashSet.h" |
38 #include "wtf/text/WTFString.h" | 39 #include "wtf/text/WTFString.h" |
39 #include "wtf/unicode/CharacterNames.h" | 40 #include "wtf/unicode/CharacterNames.h" |
40 | 41 |
41 namespace blink { | 42 namespace blink { |
42 | 43 |
43 class PLATFORM_EXPORT Character { | 44 class PLATFORM_EXPORT Character { |
44 public: | 45 public: |
45 static CodePath characterRangeCodePath(const LChar*, unsigned) { return Simp
lePath; } | 46 static CodePath characterRangeCodePath(const LChar*, unsigned) { return Simp
lePath; } |
46 static CodePath characterRangeCodePath(const UChar*, unsigned len); | 47 static CodePath characterRangeCodePath(const UChar*, unsigned len); |
47 | 48 |
48 static bool isCJKIdeograph(UChar32); | 49 static bool isCJKIdeograph(UChar32); |
49 static bool isCJKIdeographOrSymbol(UChar32); | 50 static bool isCJKIdeographOrSymbol(UChar32); |
50 | 51 |
51 static unsigned expansionOpportunityCount(const LChar*, size_t length, TextD
irection, bool& isAfterExpansion); | 52 static unsigned expansionOpportunityCount(const LChar*, size_t length, TextD
irection, bool& isAfterExpansion, const ETextJustify); |
52 static unsigned expansionOpportunityCount(const UChar*, size_t length, TextD
irection, bool& isAfterExpansion); | 53 static unsigned expansionOpportunityCount(const UChar*, size_t length, TextD
irection, bool& isAfterExpansion, const ETextJustify); |
53 | 54 |
54 static bool treatAsSpace(UChar c) { return c == ' ' || c == '\t' || c == '\n
' || c == noBreakSpace; } | 55 static bool treatAsSpace(UChar c) { return c == ' ' || c == '\t' || c == '\n
' || c == noBreakSpace; } |
55 static bool treatAsZeroWidthSpace(UChar c) { return treatAsZeroWidthSpaceInC
omplexScript(c) || c == 0x200c || c == 0x200d; } | 56 static bool treatAsZeroWidthSpace(UChar c) { return treatAsZeroWidthSpaceInC
omplexScript(c) || c == 0x200c || c == 0x200d; } |
56 static bool treatAsZeroWidthSpaceInComplexScript(UChar c) { return c < 0x20
|| (c >= 0x7F && c < 0xA0) || c == softHyphen || c == zeroWidthSpace || (c >= 0x
200e && c <= 0x200f) || (c >= 0x202a && c <= 0x202e) || c == zeroWidthNoBreakSpa
ce || c == objectReplacementCharacter; } | 57 static bool treatAsZeroWidthSpaceInComplexScript(UChar c) { return c < 0x20
|| (c >= 0x7F && c < 0xA0) || c == softHyphen || c == zeroWidthSpace || (c >= 0x
200e && c <= 0x200f) || (c >= 0x202a && c <= 0x202e) || c == zeroWidthNoBreakSpa
ce || c == objectReplacementCharacter; } |
57 static bool canReceiveTextEmphasis(UChar32); | 58 static bool canReceiveTextEmphasis(UChar32); |
58 | 59 |
59 static inline UChar normalizeSpaces(UChar character) | 60 static inline UChar normalizeSpaces(UChar character) |
60 { | 61 { |
61 if (treatAsSpace(character)) | 62 if (treatAsSpace(character)) |
62 return space; | 63 return space; |
63 | 64 |
64 if (treatAsZeroWidthSpace(character)) | 65 if (treatAsZeroWidthSpace(character)) |
65 return zeroWidthSpace; | 66 return zeroWidthSpace; |
66 | 67 |
67 return character; | 68 return character; |
68 } | 69 } |
69 | 70 |
70 static String normalizeSpaces(const LChar*, unsigned length); | 71 static String normalizeSpaces(const LChar*, unsigned length); |
71 static String normalizeSpaces(const UChar*, unsigned length); | 72 static String normalizeSpaces(const UChar*, unsigned length); |
72 | 73 |
73 private: | 74 private: |
74 Character(); | 75 Character(); |
75 }; | 76 }; |
76 | 77 |
77 } | 78 } |
78 | 79 |
79 #endif | 80 #endif |
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