QChar 類提供 16 位 Unicode 字符。 更多...
| 頭： |
#include <QChar>
|
| CMake: |
find_package(Qt6 REQUIRED COMPONENTS Core)
target_link_libraries(mytarget PRIVATE Qt6::Core)
|
| qmake: |
QT += core
|
此類 強烈可比較 .
此類 強烈可比較 采用 char16_t， QString , QStringView , QLatin1StringView ，和 QUtf8StringView .
此類 強烈可比較 with const char *, QByteArray ，和 QByteArrayView .
The contents of the byte array is interpreted as UTF-8.
注意： 此類的所有函數 可重入 .
| enum | 類彆 { Mark_NonSpacing, Mark_SpacingCombining, Mark_Enclosing, Number_DecimalDigit, Number_Letter, …, Symbol_Other } |
| enum | Decomposition { NoDecomposition, Canonical, Circle, Compat, Final, …, Wide } |
| enum | Direction { DirAL, DirAN, DirB, DirBN, DirCS, …, DirWS } |
| enum | JoiningType { Joining_None, Joining_Causing, Joining_Dual, Joining_Right, Joining_Left, Joining_Transparent } |
| enum | Script { Script_Unknown, Script_Inherited, Script_Common, Script_Adlam, Script_Ahom, …, Script_ZanabazarSquare } |
| enum | SpecialCharacter { Null, Tabulation, LineFeed, FormFeed, CarriageReturn, …, LastValidCodePoint } |
| enum | UnicodeVersion { Unicode_1_1, Unicode_2_0, Unicode_2_1_2, Unicode_3_0, Unicode_3_1, …, Unicode_Unassigned } |
| QChar () | |
| QChar (QChar::SpecialCharacter ch ) | |
| QChar (QLatin1Char ch ) | |
| QChar (char ch ) | |
| QChar (char16_t ch ) | |
| QChar (char32_t code ) | |
| QChar (int code ) | |
| QChar (short code ) | |
| QChar (uchar ch ) | |
| QChar (uint code ) | |
| QChar (ushort code ) | |
| QChar (wchar_t ch ) | |
| QChar (uchar cell , uchar row ) | |
| QChar::Category | category () const |
| uchar | cell () const |
| unsigned char | combiningClass () const |
| QString | decomposition () const |
| QChar::Decomposition | decompositionTag () const |
| int | digitValue () const |
| QChar::Direction | direction () const |
| bool | hasMirrored () const |
| bool | isDigit () const |
| bool | isHighSurrogate () const |
| bool | isLetter () const |
| bool | isLetterOrNumber () const |
| bool | isLowSurrogate () const |
| bool | isLower () const |
| bool | isMark () const |
| bool | isNonCharacter () const |
| bool | isNull () const |
| bool | isNumber () const |
| bool | isPrint () const |
| bool | isPunct () const |
| bool | isSpace () const |
| bool | isSurrogate () const |
| bool | isSymbol () const |
| bool | isTitleCase () const |
| bool | isUpper () const |
| QChar::JoiningType | joiningType () const |
| QChar | mirroredChar () const |
| uchar | row () const |
| QChar::Script | script () const |
| QChar | toCaseFolded () const |
| char | toLatin1 () const |
| QChar | toLower () const |
| QChar | toTitleCase () const |
| QChar | toUpper () const |
| char16_t & | unicode () |
| char16_t | unicode () const |
| QChar::UnicodeVersion | unicodeVersion () const |
| QChar::Category | category (char32_t ucs4 ) |
| unsigned char | combiningClass (char32_t ucs4 ) |
| QChar::UnicodeVersion | currentUnicodeVersion () |
| QString | decomposition (char32_t ucs4 ) |
| QChar::Decomposition | decompositionTag (char32_t ucs4 ) |
| int | digitValue (char32_t ucs4 ) |
| QChar::Direction | direction (char32_t ucs4 ) |
| QChar | fromLatin1 (char c ) |
(從 6.0 起)
QChar
|
fromUcs2 (char16_t c ) |
(從 6.0 起)
auto
|
fromUcs4 (char32_t c ) |
| bool | hasMirrored (char32_t ucs4 ) |
| char16_t | highSurrogate (char32_t ucs4 ) |
| bool | isDigit (char32_t ucs4 ) |
| bool | isHighSurrogate (char32_t ucs4 ) |
| bool | isLetter (char32_t ucs4 ) |
| bool | isLetterOrNumber (char32_t ucs4 ) |
| bool | isLowSurrogate (char32_t ucs4 ) |
| bool | isLower (char32_t ucs4 ) |
| bool | isMark (char32_t ucs4 ) |
| bool | isNonCharacter (char32_t ucs4 ) |
| bool | isNumber (char32_t ucs4 ) |
| bool | isPrint (char32_t ucs4 ) |
| bool | isPunct (char32_t ucs4 ) |
| bool | isSpace (char32_t ucs4 ) |
| bool | isSurrogate (char32_t ucs4 ) |
| bool | isSymbol (char32_t ucs4 ) |
| bool | isTitleCase (char32_t ucs4 ) |
| bool | isUpper (char32_t ucs4 ) |
| QChar::JoiningType | joiningType (char32_t ucs4 ) |
| char16_t | lowSurrogate (char32_t ucs4 ) |
| char32_t | mirroredChar (char32_t ucs4 ) |
| bool | requiresSurrogates (char32_t ucs4 ) |
| QChar::Script | script (char32_t ucs4 ) |
| char32_t | surrogateToUcs4 (char16_t high , char16_t low ) |
| char32_t | surrogateToUcs4 (QChar high , QChar low ) |
| char32_t | toCaseFolded (char32_t ucs4 ) |
| char32_t | toLower (char32_t ucs4 ) |
| char32_t | toTitleCase (char32_t ucs4 ) |
| char32_t | toUpper (char32_t ucs4 ) |
| QChar::UnicodeVersion | unicodeVersion (char32_t ucs4 ) |
| bool | operator!= (const QChar & c1 , const QChar & c2 ) |
| bool | operator< (const QChar & c1 , const QChar & c2 ) |
| QDataStream & | operator<< (QDataStream & out , QChar chr ) |
| bool | operator<= (const QChar & c1 , const QChar & c2 ) |
| bool | operator== (const QChar & c1 , const QChar & c2 ) |
| bool | operator> (const QChar & c1 , const QChar & c2 ) |
| bool | operator>= (const QChar & c1 , const QChar & c2 ) |
| QDataStream & | operator>> (QDataStream & in , QChar & chr ) |
在 Qt 中，Unicode 字符是沒有任何標記 (或結構) 的 16 位實體。此類錶示這種實體。它很輕量，所以可以在任何地方使用。大多數編譯器視它像
unsigned short
.
QChar 提供完全互補的測試/分類函數、轉換到/來自其它格式、從將閤成 Unicode 轉換為分解 Unicode、及試著比較和大小寫轉換，若要求的話。
The classification functions include functions like those in the standard C++ header <cctype> (formerly <ctype.h>), but operating on the full range of Unicode characters, not just for the ASCII range. They all return true if the character is a certain type of character; otherwise they return false. These classification functions are
isNull
() (返迴
true
若字符為 \0)，
isPrint
() (true if the character is any sort of printable character, including whitespace),
isPunct
() (any sort of punctation),
isMark
() (Unicode 標記)，
isLetter
() (字母)，
isNumber
() (任意排序的數字字符，不僅僅 0-9)，
isLetterOrNumber
()，和
isDigit
() (decimal digits). All of these are wrappers around
category
() which return the Unicode-defined category of each character. Some of these also calculate the derived properties (for example
isSpace
() 返迴
true
if the character is of category Separator_* or an exceptional code point from
Other_Control
類彆)。
QChar 還提供 direction (), which indicates the "natural" writing direction of this character. The joiningType () function indicates how the character joins with it's neighbors (needed mostly for Arabic or Syriac) and finally hasMirrored (), which indicates whether the character needs to be mirrored when it is printed in it's "unnatural" writing direction.
閤成的 Unicode 字符 (像 ring ) 可以被轉換成分解 Unicode (a 之後緊跟 ring above) 通過使用 decomposition ().
In Unicode, comparison is not necessarily possible and case conversion is very difficult at best. Unicode, covering the "entire" world, also includes most of the world's case and sorting problems. operator==() and friends will do comparison based purely on the numeric Unicode value (code point) of the characters, and toUpper () 和 toLower () will do case changes when the character has a well-defined uppercase/lowercase equivalent. For locale-dependent comparisons, use QString::localeAwareCompare ().
轉換函數包括 unicode () (到標量)、 toLatin1 () (到標量，但將所有非 Latin-1 字符轉換成 0)、 row () (給齣 Unicode 行)、 cell () (給齣 Unicode 單元格)、 digitValue () (給齣任意多數字字符的整數值)、及大量構造函數。
QChar 提供構造函數和鑄造運算符，使之易於轉換到和轉換自傳統 8 位
char
。若有定義
QT_NO_CAST_FROM_ASCII
and
QT_NO_CAST_TO_ASCII
，如闡述在
QString
文檔編製，將需要明確調用
fromLatin1
()，或使用
QLatin1Char
，以構造 QChar 從 8 位
char
，和將需要調用
toLatin1
() 以獲得 8 位值。
從 Qt 6.0 開始，大多數 QChar 構造函數都是
explicit
. This is done to avoid dangerous mistakes when accidentally mixing integral types and strings.
更多信息見 關於 Unicode 字符數據庫 .
另請參閱 Unicode , QString ，和 QLatin1Char .
此枚舉映射 Unicode 字符類彆。
以下是 Unicode 規範字符：
| 常量 | 值 | 描述 |
|---|---|---|
QChar::Mark_NonSpacing
|
0
|
Unicode 類名 Mn |
QChar::Mark_SpacingCombining
|
1
|
Unicode 類名 Mc |
QChar::Mark_Enclosing
|
2
|
Unicode 類名 Me |
QChar::Number_DecimalDigit
|
3
|
Unicode 類名 Nd |
QChar::Number_Letter
|
4
|
Unicode 類名 Nl |
QChar::Number_Other
|
5
|
Unicode 類名 No |
QChar::Separator_Space
|
6
|
Unicode 類名 Zs |
QChar::Separator_Line
|
7
|
Unicode 類名 Zl |
QChar::Separator_Paragraph
|
8
|
Unicode 類名 Zp |
QChar::Other_Control
|
9
|
Unicode 類名 Cc |
QChar::Other_Format
|
10
|
Unicode 類名 Cf |
QChar::Other_Surrogate
|
11
|
Unicode 類名 Cs |
QChar::Other_PrivateUse
|
12
|
Unicode 類名 Co |
QChar::Other_NotAssigned
|
13
|
Unicode 類名 Cn |
以下是 Unicode 情報類彆：
| 常量 | 值 | 描述 |
|---|---|---|
QChar::Letter_Uppercase
|
14
|
Unicode 類名 Lu |
QChar::Letter_Lowercase
|
15
|
Unicode 類名 Ll |
QChar::Letter_Titlecase
|
16
|
Unicode 類名 Lt |
QChar::Letter_Modifier
|
17
|
Unicode 類名 Lm |
QChar::Letter_Other
|
18
|
Unicode 類名 Lo |
QChar::Punctuation_Connector
|
19
|
Unicode 類名 Pc |
QChar::Punctuation_Dash
|
20
|
Unicode 類名 Pd |
QChar::Punctuation_Open
|
21
|
Unicode 類名 Ps |
QChar::Punctuation_Close
|
22
|
Unicode 類名 Pe |
QChar::Punctuation_InitialQuote
|
23
|
Unicode 類名 Pi |
QChar::Punctuation_FinalQuote
|
24
|
Unicode 類名 Pf |
QChar::Punctuation_Other
|
25
|
Unicode 類名 Po |
QChar::Symbol_Math
|
26
|
Unicode 類名 Sm |
QChar::Symbol_Currency
|
27
|
Unicode 類名 Sc |
QChar::Symbol_Modifier
|
28
|
Unicode 類名 Sk |
QChar::Symbol_Other
|
29
|
Unicode 類名 So |
另請參閱 category ().
此枚舉類型定義 Unicode 分解屬性。見 Unicode 標準 瞭解值的描述。
| 常量 | 值 |
|---|---|
QChar::NoDecomposition
|
0
|
QChar::Canonical
|
1
|
QChar::Circle
|
8
|
QChar::Compat
|
16
|
QChar::Final
|
6
|
QChar::Font
|
2
|
QChar::Fraction
|
17
|
QChar::Initial
|
4
|
QChar::Isolated
|
7
|
QChar::Medial
|
5
|
QChar::Narrow
|
13
|
QChar::NoBreak
|
3
|
QChar::Small
|
14
|
QChar::Square
|
15
|
QChar::Sub
|
10
|
QChar::Super
|
9
|
QChar::Vertical
|
11
|
QChar::Wide
|
12
|
另請參閱 decomposition ().
此枚舉類型定義 Unicode 方嚮屬性。見 Unicode 標準 瞭解值的描述。
為符閤 C/C++ 命名約定，在 Unicode 標準使用的代碼前置 Dir。
| 常量 | 值 |
|---|---|
QChar::DirAL
|
13
|
QChar::DirAN
|
5
|
QChar::DirB
|
7
|
QChar::DirBN
|
18
|
QChar::DirCS
|
6
|
QChar::DirEN
|
2
|
QChar::DirES
|
3
|
QChar::DirET
|
4
|
QChar::DirFSI (since Qt 5.3)
|
21
|
QChar::DirL
|
0
|
QChar::DirLRE
|
11
|
QChar::DirLRI (since Qt 5.3)
|
19
|
QChar::DirLRO
|
12
|
QChar::DirNSM
|
17
|
QChar::DirON
|
10
|
QChar::DirPDF
|
16
|
QChar::DirPDI (since Qt 5.3)
|
22
|
QChar::DirR
|
1
|
QChar::DirRLE
|
14
|
QChar::DirRLI (since Qt 5.3)
|
20
|
QChar::DirRLO
|
15
|
QChar::DirS
|
8
|
QChar::DirWS
|
9
|
另請參閱 direction ().
從 5.3 起
此枚舉類型定義 Unicode 聯接類型屬性。見 Unicode 標準 瞭解值的描述。
為符閤 C/C++ 命名約定，在 Unicode 標準使用的代碼前置 Joining_。
| 常量 | 值 |
|---|---|
QChar::Joining_None
|
0
|
QChar::Joining_Causing
|
1
|
QChar::Joining_Dual
|
2
|
QChar::Joining_Right
|
3
|
QChar::Joining_Left
|
4
|
QChar::Joining_Transparent
|
5
|
另請參閱 joiningType ().
此枚舉類型定義 Unicode 腳本特性值。
Unicode 腳本特性值的有關細節，見 Unicode 標準附錄 #24 .
為符閤 C/C++ 命名約定，在 Unicode 標準使用的代碼前置 Script_。
| 常量 | 值 | 描述 |
|---|---|---|
QChar::Script_Unknown
|
0
|
For unassigned, private-use, noncharacter, and surrogate code points. |
QChar::Script_Inherited
|
1
|
For characters that may be used with multiple scripts and that inherit their script from the preceding characters. These include nonspacing marks, enclosing marks, and zero width joiner/non-joiner characters. |
QChar::Script_Common
|
2
|
For characters that may be used with multiple scripts and that do not inherit their script from the preceding characters. |
QChar::Script_Adlam (since Qt 5.11)
|
132
|
|
QChar::Script_Ahom (since Qt 5.6)
|
126
|
|
QChar::Script_AnatolianHieroglyphs (since Qt 5.6)
|
127
|
|
QChar::Script_Arabic
|
8
|
|
QChar::Script_Armenian
|
6
|
|
QChar::Script_Avestan
|
80
|
|
QChar::Script_Balinese
|
62
|
|
QChar::Script_Bamum
|
84
|
|
QChar::Script_BassaVah (since Qt 5.5)
|
104
|
|
QChar::Script_Batak
|
93
|
|
QChar::Script_Bengali
|
12
|
|
QChar::Script_Bhaiksuki (since Qt 5.11)
|
133
|
|
QChar::Script_Bopomofo
|
36
|
|
QChar::Script_Brahmi
|
94
|
|
QChar::Script_Braille
|
54
|
|
QChar::Script_Buginese
|
55
|
|
QChar::Script_Buhid
|
44
|
|
QChar::Script_CanadianAboriginal
|
29
|
|
QChar::Script_Carian
|
75
|
|
QChar::Script_CaucasianAlbanian (since Qt 5.5)
|
103
|
|
QChar::Script_Chakma
|
96
|
|
QChar::Script_Cham
|
77
|
|
QChar::Script_Cherokee
|
28
|
|
QChar::Script_Chorasmian (since Qt 5.15)
|
153
|
|
QChar::Script_Coptic
|
46
|
|
QChar::Script_Cuneiform
|
63
|
|
QChar::Script_Cypriot
|
53
|
|
QChar::Script_CyproMinoan (since Qt 6.3)
|
157
|
|
QChar::Script_Cyrillic
|
5
|
|
QChar::Script_Deseret
|
41
|
|
QChar::Script_Devanagari
|
11
|
|
QChar::Script_DivesAkuru (since Qt 5.15)
|
154
|
|
QChar::Script_Dogra (since Qt 5.15)
|
142
|
|
QChar::Script_Duployan (since Qt 5.5)
|
105
|
|
QChar::Script_EgyptianHieroglyphs
|
81
|
|
QChar::Script_Elbasan (since Qt 5.5)
|
106
|
|
QChar::Script_Elymaic (since Qt 5.15)
|
149
|
|
QChar::Script_Ethiopic
|
27
|
|
QChar::Script_Garay (since Qt 6.9)
|
164
|
|
QChar::Script_Georgian
|
25
|
|
QChar::Script_Glagolitic
|
57
|
|
QChar::Script_Gothic
|
40
|
|
QChar::Script_Grantha (since Qt 5.5)
|
107
|
|
QChar::Script_Greek
|
4
|
|
QChar::Script_Gujarati
|
14
|
|
QChar::Script_GunjalaGondi (since Qt 5.15)
|
143
|
|
QChar::Script_Gurmukhi
|
13
|
|
QChar::Script_GurungKhema (since Qt 6.9)
|
165
|
|
QChar::Script_Han
|
37
|
|
QChar::Script_Hangul
|
26
|
|
QChar::Script_HanifiRohingya (since Qt 5.15)
|
144
|
|
QChar::Script_Hanunoo
|
43
|
|
QChar::Script_Hatran (since Qt 5.6)
|
128
|
|
QChar::Script_Hebrew
|
7
|
|
QChar::Script_Hiragana
|
34
|
|
QChar::Script_ImperialAramaic
|
87
|
|
QChar::Script_InscriptionalPahlavi
|
90
|
|
QChar::Script_InscriptionalParthian
|
89
|
|
QChar::Script_Javanese
|
85
|
|
QChar::Script_Kaithi
|
92
|
|
QChar::Script_Kannada
|
18
|
|
QChar::Script_Katakana
|
35
|
|
QChar::Script_Kawi (since Qt 6.5)
|
162
|
|
QChar::Script_KayahLi
|
72
|
|
QChar::Script_Kharoshthi
|
61
|
|
QChar::Script_KhitanSmallScript (since Qt 5.15)
|
155
|
|
QChar::Script_Khmer
|
32
|
|
QChar::Script_Khojki (since Qt 5.5)
|
109
|
|
QChar::Script_Khudawadi (since Qt 5.5)
|
123
|
|
QChar::Script_KiratRai (since Qt 6.9)
|
166
|
|
QChar::Script_Lao
|
22
|
|
QChar::Script_Latin
|
3
|
|
QChar::Script_Lepcha
|
68
|
|
QChar::Script_Limbu
|
47
|
|
QChar::Script_LinearA (since Qt 5.5)
|
110
|
|
QChar::Script_LinearB
|
49
|
|
QChar::Script_Lisu
|
83
|
|
QChar::Script_Lycian
|
74
|
|
QChar::Script_Lydian
|
76
|
|
QChar::Script_Mahajani (since Qt 5.5)
|
111
|
|
QChar::Script_Makasar (since Qt 5.15)
|
145
|
|
QChar::Script_Malayalam
|
19
|
|
QChar::Script_Mandaic
|
95
|
|
QChar::Script_Manichaean (since Qt 5.5)
|
112
|
|
QChar::Script_Marchen (since Qt 5.11)
|
134
|
|
QChar::Script_MasaramGondi (since Qt 5.11)
|
138
|
|
QChar::Script_Medefaidrin (since Qt 5.15)
|
146
|
|
QChar::Script_MeeteiMayek
|
86
|
|
QChar::Script_MendeKikakui (since Qt 5.5)
|
113
|
|
QChar::Script_MeroiticCursive
|
97
|
|
QChar::Script_MeroiticHieroglyphs
|
98
|
|
QChar::Script_Miao
|
99
|
|
QChar::Script_Modi (since Qt 5.5)
|
114
|
|
QChar::Script_Mongolian
|
33
|
|
QChar::Script_Mro (since Qt 5.5)
|
115
|
|
QChar::Script_Multani (since Qt 5.6)
|
129
|
|
QChar::Script_Myanmar
|
24
|
|
QChar::Script_Nabataean (since Qt 5.5)
|
117
|
|
QChar::Script_NagMundari (since Qt 6.3)
|
163
|
|
QChar::Script_Nandinagari (since Qt 5.15)
|
150
|
|
QChar::Script_Newa (since Qt 5.11)
|
135
|
|
QChar::Script_NewTaiLue
|
56
|
|
QChar::Script_Nko
|
66
|
|
QChar::Script_Nushu (since Qt 5.11)
|
139
|
|
QChar::Script_NyiakengPuachueHmong (since Qt 5.15)
|
151
|
|
QChar::Script_Ogham
|
30
|
|
QChar::Script_OlChiki
|
69
|
|
QChar::Script_OlOnal (since Qt 6.9)
|
167
|
|
QChar::Script_OldHungarian (since Qt 5.6)
|
130
|
|
QChar::Script_OldItalic
|
39
|
|
QChar::Script_OldNorthArabian (since Qt 5.5)
|
116
|
|
QChar::Script_OldPermic (since Qt 5.5)
|
120
|
|
QChar::Script_OldPersian
|
60
|
|
QChar::Script_OldSogdian (since Qt 5.15)
|
147
|
|
QChar::Script_OldSouthArabian
|
88
|
|
QChar::Script_OldTurkic
|
91
|
|
QChar::Script_OldUyghur (since Qt 6.3)
|
158
|
|
QChar::Script_Oriya
|
15
|
|
QChar::Script_Osage (since Qt 5.11)
|
136
|
|
QChar::Script_Osmanya
|
52
|
|
QChar::Script_PahawhHmong (since Qt 5.5)
|
108
|
|
QChar::Script_Palmyrene (since Qt 5.5)
|
118
|
|
QChar::Script_PauCinHau (since Qt 5.5)
|
119
|
|
QChar::Script_PhagsPa
|
65
|
|
QChar::Script_Phoenician
|
64
|
|
QChar::Script_PsalterPahlavi (since Qt 5.5)
|
121
|
|
QChar::Script_Rejang
|
73
|
|
QChar::Script_Runic
|
31
|
|
QChar::Script_Samaritan
|
82
|
|
QChar::Script_Saurashtra
|
71
|
|
QChar::Script_Sharada
|
100
|
|
QChar::Script_Shavian
|
51
|
|
QChar::Script_Siddham (since Qt 5.5)
|
122
|
|
QChar::Script_SignWriting (since Qt 5.6)
|
131
|
|
QChar::Script_Sinhala
|
20
|
|
QChar::Script_Sogdian (since Qt 5.15)
|
148
|
|
QChar::Script_SoraSompeng
|
101
|
|
QChar::Script_Soyombo (since Qt 5.11)
|
140
|
|
QChar::Script_Sundanese
|
67
|
|
QChar::Script_Sunuwar (since Qt 6.9)
|
168
|
|
QChar::Script_SylotiNagri
|
59
|
|
QChar::Script_Syriac
|
9
|
|
QChar::Script_Tagalog
|
42
|
|
QChar::Script_Tagbanwa
|
45
|
|
QChar::Script_TaiLe
|
48
|
|
QChar::Script_TaiTham
|
78
|
|
QChar::Script_TaiViet
|
79
|
|
QChar::Script_Takri
|
102
|
|
QChar::Script_Tamil
|
16
|
|
QChar::Script_Tangut (since Qt 5.11)
|
137
|
|
QChar::Script_Tangsa (since Qt 6.3)
|
159
|
|
QChar::Script_Telugu
|
17
|
|
QChar::Script_Thaana
|
10
|
|
QChar::Script_Thai
|
21
|
|
QChar::Script_Tibetan
|
23
|
|
QChar::Script_Tifinagh
|
58
|
|
QChar::Script_Tirhuta (since Qt 5.5)
|
124
|
|
QChar::Script_Todhri (since Qt 6.9)
|
169
|
|
QChar::Script_Toto (since Qt 6.3)
|
160
|
|
QChar::Script_TuluTigalari (since Qt 6.9)
|
170
|
|
QChar::Script_Ugaritic
|
50
|
|
QChar::Script_Vai
|
70
|
|
QChar::Script_Vithkuqi (since Qt 6.3)
|
161
|
|
QChar::Script_Wancho (since Qt 5.15)
|
152
|
|
QChar::Script_WarangCiti (since Qt 5.5)
|
125
|
|
QChar::Script_Yezidi (since Qt 5.15)
|
156
|
|
QChar::Script_Yi
|
38
|
|
QChar::Script_ZanabazarSquare (since Qt 5.11)
|
141
|
另請參閱 script ().
| 常量 | 值 | 描述 |
|---|---|---|
QChar::Null
|
0x0000
|
A QChar 具有此值 isNull (). |
QChar::Tabulation
|
0x0009
|
製錶符。 |
QChar::LineFeed
|
0x000a
|
|
QChar::FormFeed
|
0x000c
|
|
QChar::CarriageReturn
|
0x000d
|
|
QChar::Space
|
0x0020
|
|
QChar::Nbsp
|
0x00a0
|
不間斷空格。 |
QChar::SoftHyphen
|
0x00ad
|
|
QChar::ReplacementCharacter
|
0xfffd
|
展示字符，當對於某個代碼點字體沒有字形時。經常使用特殊 ? (問號) 字符。編解碼器使用此代碼點，當輸入數據無法以 Unicode 錶示時。 |
QChar::ObjectReplacementCharacter
|
0xfffc
|
用於錶示無法呈現的那些對象 (譬如：圖像)。 |
QChar::ByteOrderMark
|
0xfeff
|
|
QChar::ByteOrderSwapped
|
0xfffe
|
|
QChar::ParagraphSeparator
|
0x2029
|
|
QChar::LineSeparator
|
0x2028
|
|
QChar::VisualTabCharacter (since Qt 6.2)
|
0x2192
|
用於以水平箭頭方式錶示 Tab (製錶符)。 |
QChar::LastValidCodePoint
|
0x10ffff
|
指定哪個版本的 Unicode 標準 引入某個字符。
| 常量 | 值 | 描述 |
|---|---|---|
QChar::Unicode_1_1
|
1
|
版本 1.1 |
QChar::Unicode_2_0
|
2
|
版本 2.0 |
QChar::Unicode_2_1_2
|
3
|
版本 2.1.2 |
QChar::Unicode_3_0
|
4
|
版本 3.0 |
QChar::Unicode_3_1
|
5
|
版本 3.1 |
QChar::Unicode_3_2
|
6
|
版本 3.2 |
QChar::Unicode_4_0
|
7
|
版本 4.0 |
QChar::Unicode_4_1
|
8
|
版本 4.1 |
QChar::Unicode_5_0
|
9
|
版本 5.0 |
QChar::Unicode_5_1
|
10
|
版本 5.1 |
QChar::Unicode_5_2
|
11
|
版本 5.2 |
QChar::Unicode_6_0
|
12
|
版本 6.0 |
QChar::Unicode_6_1
|
13
|
版本 6.1 |
QChar::Unicode_6_2
|
14
|
版本 6.2 |
QChar::Unicode_6_3 (since Qt 5.3)
|
15
|
版本 6.3 |
QChar::Unicode_7_0 (since Qt 5.5)
|
16
|
版本 7.0 |
QChar::Unicode_8_0 (since Qt 5.6)
|
17
|
版本 8.0 |
QChar::Unicode_9_0 (since Qt 5.11)
|
18
|
版本 9.0 |
QChar::Unicode_10_0 (since Qt 5.11)
|
19
|
版本 10.0 |
QChar::Unicode_11_0 (since Qt 5.15)
|
20
|
版本 11.0 |
QChar::Unicode_12_0 (since Qt 5.15)
|
21
|
版本 12.0 |
QChar::Unicode_12_1 (since Qt 5.15)
|
22
|
版本 12.1 |
QChar::Unicode_13_0 (since Qt 5.15)
|
23
|
版本 13.0 |
QChar::Unicode_14_0 (since Qt 6.3)
|
24
|
版本 14.0 |
QChar::Unicode_15_0 (since Qt 6.5)
|
25
|
版本 15.0 |
QChar::Unicode_15_1 (since Qt 6.8)
|
26
|
Version 15.1 |
QChar::Unicode_16_0 (since Qt 6.9)
|
27
|
Version 16.0 |
QChar::Unicode_Unassigned
|
0
|
The value is not assigned to any character in version 8.0 of Unicode. |
另請參閱 unicodeVersion () 和 currentUnicodeVersion ().
[constexpr noexcept]
QChar::
QChar
()
構造 null QChar('\0')。
另請參閱 isNull ().
[constexpr noexcept]
QChar::
QChar
(
QChar::SpecialCharacter
ch
)
構造 QChar 為預定義字符值 ch .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[constexpr noexcept]
QChar::
QChar
(
QLatin1Char
ch
)
構造的 QChar 對應 ASCII/Latin-1 字符 ch .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[constexpr noexcept]
QChar::
QChar
(
char
ch
)
構造的 QChar 對應 ASCII/Latin-1 字符 ch .
注意：
此構造函數不可用當
QT_NO_CAST_FROM_ASCII
有定義。
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
另請參閱 QT_NO_CAST_FROM_ASCII .
[constexpr noexcept]
QChar::
QChar
(
char16_t
ch
)
構造的 QChar 對應 UTF-16 字符 ch .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[default]
QChar::
QChar
(
char32_t
code
)
構造 QChar 為字符具有 Unicode 代碼點 code .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[explicit constexpr noexcept]
QChar::
QChar
(
int
code
)
構造 QChar 為字符具有 Unicode 代碼點 code .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[constexpr noexcept]
QChar::
QChar
(
short
code
)
構造 QChar 為字符具有 Unicode 代碼點 code .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[explicit constexpr noexcept]
QChar::
QChar
(
uchar
ch
)
構造的 QChar 對應 ASCII/Latin-1 字符 ch .
注意：
此構造函數不可用當
QT_NO_CAST_FROM_ASCII
or
QT_RESTRICTED_CAST_FROM_ASCII
有定義。
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
另請參閱 QT_NO_CAST_FROM_ASCII and QT_RESTRICTED_CAST_FROM_ASCII .
[explicit constexpr noexcept]
QChar::
QChar
(
uint
code
)
構造 QChar 為字符具有 Unicode 代碼點 code .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[constexpr noexcept]
QChar::
QChar
(
ushort
code
)
構造 QChar 為字符具有 Unicode 代碼點 code .
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[constexpr noexcept]
QChar::
QChar
(
wchar_t
ch
)
構造的 QChar 對應寬字符 ch .
注意： 此構造函數隻可用於 Windows。
注意： Since Qt 6.9, implicit conversions are disabled for this constructor. That means it accepts only the constructor argument type and not everything that implicitly converts to it. A backwards-compatible fix is to explicitly cast to one of the supported argument types of QChar constructors.
[explicit constexpr noexcept]
QChar::
QChar
(
uchar
cell
,
uchar
row
)
構造 QChar 為 Unicode 單元格 cell 按行 row .
[noexcept]
QChar::Category
QChar::
category
() const
返迴字符類彆。
[static noexcept]
QChar::Category
QChar::
category
(
char32_t
ucs4
)
返迴的 UCS-4 編碼字符類彆指定通過 ucs4 .
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
uchar
QChar::
cell
() const
返迴 Unicode 字符單元格 (最低有效字節)。
另請參閱 row ().
[noexcept]
unsigned
char
QChar::
combiningClass
() const
Returns the combining class for the character as defined in the Unicode standard. This is mainly useful as a positioning hint for marks attached to a base character.
The Qt text rendering engine uses this information to correctly position non-spacing marks around a base character.
[static noexcept]
unsigned
char
QChar::
combiningClass
(
char32_t
ucs4
)
返迴 UCS-4 編碼字符組閤類指定通過 ucs4 ，如 Unicode 標準定義的。
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[static noexcept]
QChar::UnicodeVersion
QChar::
currentUnicodeVersion
()
返迴最近支持的 Unicode 版本。
將字符分解成其組成部分。返迴空字符串，若不存在分解。
[static]
QString
QChar::
decomposition
(
char32_t
ucs4
)
分解 UCS-4 編碼字符指定通過 ucs4 成其組成部分。返迴空字符串，若不存在分解。
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[noexcept]
QChar::Decomposition
QChar::
decompositionTag
() const
返迴字符閤成定義標簽。返迴 QChar::NoDecomposition 若不存在分解。
[static noexcept]
QChar::Decomposition
QChar::
decompositionTag
(
char32_t
ucs4
)
返迴 UCS-4 編碼字符閤成定義標簽指定通過 ucs4 。返迴 QChar::NoDecomposition 若不存在分解。
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[noexcept]
int
QChar::
digitValue
() const
返迴數字的數值，或 -1 若字符不是數字。
[static noexcept]
int
QChar::
digitValue
(
char32_t
ucs4
)
返迴數字的數值指定通過 UCS-4 編碼字符 ucs4 ，或 -1 若字符不是數字。
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[noexcept]
QChar::Direction
QChar::
direction
() const
返迴字符方嚮。
[static noexcept]
QChar::Direction
QChar::
direction
(
char32_t
ucs4
)
返迴 UCS-4 編碼字符方嚮指定通過 ucs4 .
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[static constexpr noexcept]
QChar
QChar::
fromLatin1
(
char
c
)
轉換 Latin-1 字符 c 到其等價 QChar 。這主要用於非國際化軟件。
替代是使用 QLatin1Char .
另請參閱 toLatin1 () 和 unicode ().
[static constexpr noexcept, since 6.0]
QChar
QChar::
fromUcs2
(
char16_t
c
)
構造 QChar 從 UTF-16 字符 c .
該函數在 Qt 6.0 引入。
另請參閱 fromUcs4 ().
[static constexpr noexcept, since 6.0]
auto
QChar::
fromUcs4
(
char32_t
c
)
返迴匿名結構體
char16_t chars[2]
數組，
若
c
要求代理，
chars[0]
包含高代理和
chars[1]
低代理，且
QStringView
擁有大小 2。否則，
chars[0]
包含
c
and
chars[1]
is
null
，和
QStringView
擁有大小 1。
這允許輕鬆使用結果：
QString s; s += QChar::fromUcs4(ch);
for (char16_t c16 : QChar::fromUcs4(ch)) use(c16);
該函數在 Qt 6.0 引入。
另請參閱 fromUcs2 () 和 requiresSurrogates ().
[noexcept]
bool
QChar::
hasMirrored
() const
返迴
true
當應反轉字符時，若文本方嚮相反；否則返迴
false
.
快一點相當於 (ch. mirroredChar () != ch).
另請參閱 mirroredChar ().
[static noexcept]
bool
QChar::
hasMirrored
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
應反轉，若文本方嚮相反；否則返迴
false
.
快一點相當於 ( QChar::mirroredChar (ucs4) != ucs4).
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 mirroredChar ().
[static constexpr noexcept]
char16_t
QChar::
highSurrogate
(
char32_t
ucs4
)
Returns the high surrogate part of a UCS-4-encoded code point. The returned result is undefined if ucs4 is smaller than 0x10000.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
ushort
.
[constexpr noexcept]
bool
QChar::
isDigit
() const
返迴
true
若字符是十進製數字 (
Number_DecimalDigit
)；否則返迴
false
.
另請參閱 isNumber ().
[static constexpr noexcept]
bool
QChar::
isDigit
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是十進製數字 (
Number_DecimalDigit
)；否則返迴
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 isNumber ().
[constexpr noexcept]
bool
QChar::
isHighSurrogate
() const
返迴
true
若
QChar
是 UTF16 代理的高部分 (例如：若其代碼點在範圍 [0xd800..0xdbff])；否則 false。
[static constexpr noexcept]
bool
QChar::
isHighSurrogate
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是 UTF16 代理的高部分 (例如：若其代碼點在範圍 [0xd800..0xdbff])；否則 false。
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isLetter
() const
返迴
true
若字符是字母 (Letter_* 類彆)；否則返迴
false
.
[static constexpr noexcept]
bool
QChar::
isLetter
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是字母 (Letter_* 類彆)；否則返迴
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isLetterOrNumber
() const
返迴
true
若字符是字母或數字 (Letter_* 或 Number_* 類彆)；否則返迴
false
.
[static constexpr noexcept]
bool
QChar::
isLetterOrNumber
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是字母或數字 (Letter_* 或 Number_* 類彆)；否則返迴
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isLowSurrogate
() const
返迴
true
若
QChar
is the low part of a UTF16 surrogate (for example if its code point is in range [0xdc00..0xdfff]); false otherwise.
[static constexpr noexcept]
bool
QChar::
isLowSurrogate
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
is the low part of a UTF16 surrogate (for example if its code point is in range [0xdc00..0xdfff]); false otherwise.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isLower
() const
返迴
true
若字符是小寫字母，例如
category
() 是
Letter_Lowercase
.
另請參閱 isUpper (), toLower ()，和 toUpper ().
[static constexpr noexcept]
bool
QChar::
isLower
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是小寫字母，例如
category
() 是
Letter_Lowercase
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 isUpper (), toLower ()，和 toUpper ().
[noexcept]
bool
QChar::
isMark
() const
返迴
true
若字符為標記 (Mark_* 類彆)；否則返迴
false
.
見 QChar::Category 瞭解一般標記的更多信息。
[static noexcept]
bool
QChar::
isMark
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
為標記 (Mark_* 類彆)；
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isNonCharacter
() const
返迴
true
若
QChar
為非字符；否則 false。
Unicode has a certain number of code points that are classified as "non-characters:" that is, they can be used for internal purposes in applications but cannot be used for text interchange. Those are the last two entries each Unicode Plane ([0xfffe..0xffff], [0x1fffe..0x1ffff], etc.) as well as the entries in range [0xfdd0..0xfdef].
[static constexpr noexcept]
bool
QChar::
isNonCharacter
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
為非字符；否則 false。
Unicode has a certain number of code points that are classified as "non-characters:" that is, they can be used for internal purposes in applications but cannot be used for text interchange. Those are the last two entries each Unicode Plane ([0xfffe..0xffff], [0x1fffe..0x1ffff], etc.) as well as the entries in range [0xfdd0..0xfdef].
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isNull
() const
返迴
true
if the character is the Unicode character 0x0000 ('\0'); otherwise returns
false
.
[constexpr noexcept]
bool
QChar::
isNumber
() const
返迴
true
if the character is a number (Number_* categories, not just 0-9); otherwise returns
false
.
另請參閱 isDigit ().
[static constexpr noexcept]
bool
QChar::
isNumber
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
is a number (Number_* categories, not just 0-9); otherwise returns
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 isDigit ().
[noexcept]
bool
QChar::
isPrint
() const
返迴
true
if the character is a printable character; otherwise returns
false
. This is any character not of category
Other_
*.
Note that this gives no indication of whether the character is available in a particular font.
[static noexcept]
bool
QChar::
isPrint
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
is a printable character; otherwise returns
false
. This is any character not of category
Other_
*.
Note that this gives no indication of whether the character is available in a particular font.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[noexcept]
bool
QChar::
isPunct
() const
返迴
true
若字符為標點符號標記 (Punctuation_* 類彆)；否則返迴
false
.
[static noexcept]
bool
QChar::
isPunct
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
為標點符號標記 (Punctuation_* 類彆)；否則返迴
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isSpace
() const
返迴
true
if the character is a separator character (Separator_* categories or certain code points from
Other_Control
category); otherwise returns
false
.
[static constexpr noexcept]
bool
QChar::
isSpace
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
is a separator character (Separator_* categories or certain code points from
Other_Control
category); otherwise returns
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isSurrogate
() const
返迴
true
若
QChar
contains a code point that is in either the high or the low part of the UTF-16 surrogate range (for example if its code point is in range [0xd800..0xdfff]); false otherwise.
[static constexpr noexcept]
bool
QChar::
isSurrogate
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
contains a code point that is in either the high or the low part of the UTF-16 surrogate range (for example if its code point is in range [0xd800..0xdfff]); false otherwise.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[noexcept]
bool
QChar::
isSymbol
() const
返迴
true
若字符為符號 (Symbol_* 類彆)；否則返迴
false
.
[static noexcept]
bool
QChar::
isSymbol
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
為符號 (Symbol_* 類彆)；否則返迴
false
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
QChar::
isTitleCase
() const
返迴
true
若字符為標題大小寫字母，例如
category
() 是
Letter_Titlecase
.
另請參閱 isLower (), toUpper (), toLower ()，和 toTitleCase ().
[static constexpr noexcept]
bool
QChar::
isTitleCase
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
為標題大小寫字母，例如
category
() 是
Letter_Titlecase
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 isLower (), toUpper (), toLower ()，和 toTitleCase ().
[constexpr noexcept]
bool
QChar::
isUpper
() const
返迴
true
若字符為大寫字母，例如
category
() 是
Letter_Uppercase
.
另請參閱 isLower (), toUpper ()，和 toLower ().
[static constexpr noexcept]
bool
QChar::
isUpper
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
是大寫字母，例如
category
() 是
Letter_Uppercase
.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
另請參閱 isLower (), toUpper ()，和 toLower ().
[noexcept]
QChar::JoiningType
QChar::
joiningType
() const
Returns information about the joining type attributes of the character (needed for certain languages such as Arabic or Syriac).
[static noexcept]
QChar::JoiningType
QChar::
joiningType
(
char32_t
ucs4
)
Returns information about the joining type attributes of the UCS-4-encoded character specified by ucs4 (needed for certain languages such as Arabic or Syriac).
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[static constexpr noexcept]
char16_t
QChar::
lowSurrogate
(
char32_t
ucs4
)
Returns the low surrogate part of a UCS-4-encoded code point. The returned result is undefined if ucs4 is smaller than 0x10000.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
ushort
.
[noexcept]
QChar
QChar::
mirroredChar
() const
Returns the mirrored character if this character is a mirrored character; otherwise returns the character itself.
另請參閱 hasMirrored ().
[static noexcept]
char32_t
QChar::
mirroredChar
(
char32_t
ucs4
)
Returns the mirrored character if the UCS-4-encoded character specified by ucs4 is a mirrored character; otherwise returns the character itself.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
uint
.
這是重載函數。
另請參閱 hasMirrored ().
[static constexpr noexcept]
bool
QChar::
requiresSurrogates
(
char32_t
ucs4
)
返迴
true
若 UCS-4 編碼字符指定通過
ucs4
can be split into the high and low parts of a UTF16 surrogate (for example if its code point is greater than or equals to 0x10000); false otherwise.
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
[constexpr noexcept]
uchar
QChar::
row
() const
Returns the row (most significant byte) of the Unicode character.
另請參閱 cell ().
[noexcept]
QChar::Script
QChar::
script
() const
返迴用於此字符的 Unicode 腳本特性值。
[static noexcept]
QChar::Script
QChar::
script
(
char32_t
ucs4
)
Returns the Unicode script property value for the character specified in its UCS-4-encoded form as ucs4 .
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[static constexpr noexcept]
char32_t
QChar::
surrogateToUcs4
(
char16_t
high
,
char16_t
low
)
轉換 UTF16 代理對采用給定 high and low 值，到其 UCS-4 編碼代碼點。
注意：
在 Qt 6 之前，此函數接受
ushort
自變量並返迴
uint
.
[static constexpr noexcept]
char32_t
QChar::
surrogateToUcs4
(
QChar
high
,
QChar
low
)
轉換 UTF16 代理對 ( high , low ) 到其 UCS-4 編碼代碼點。
注意：
在 Qt 6 之前，此函數返迴
uint
.
這是重載函數。
[noexcept]
QChar
QChar::
toCaseFolded
() const
Returns the case folded equivalent of the character. For most Unicode characters this is the same as toLower ().
[static noexcept]
char32_t
QChar::
toCaseFolded
(
char32_t
ucs4
)
Returns the case folded equivalent of the UCS-4-encoded character specified by ucs4 . For most Unicode characters this is the same as toLower ().
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
uint
.
這是重載函數。
[constexpr noexcept]
char
QChar::
toLatin1
() const
返迴的 Latin-1 字符相當於 QChar ，或 0。這主要用於非國際化軟件。
注意： It is not possible to distinguish a non-Latin-1 character from a Latin-1 0 (NUL) character. Prefer to use unicode (), which does not have this ambiguity.
另請參閱 unicode ().
[noexcept]
QChar
QChar::
toLower
() const
Returns the lowercase equivalent if the character is uppercase or titlecase; otherwise returns the character itself.
[static noexcept]
char32_t
QChar::
toLower
(
char32_t
ucs4
)
Returns the lowercase equivalent of the UCS-4-encoded character specified by ucs4 if the character is uppercase or titlecase; otherwise returns the character itself.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
uint
.
這是重載函數。
[noexcept]
QChar
QChar::
toTitleCase
() const
Returns the title case equivalent if the character is lowercase or uppercase; otherwise returns the character itself.
[static noexcept]
char32_t
QChar::
toTitleCase
(
char32_t
ucs4
)
Returns the title case equivalent of the UCS-4-encoded character specified by ucs4 if the character is lowercase or uppercase; otherwise returns the character itself.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
uint
.
這是重載函數。
[noexcept]
QChar
QChar::
toUpper
() const
Returns the uppercase equivalent if the character is lowercase or titlecase; otherwise returns the character itself.
注意： This function also returns the original character in the rare case of the uppercase form of the character requiring two or more characters.
另請參閱 QString::toUpper ().
[static noexcept]
char32_t
QChar::
toUpper
(
char32_t
ucs4
)
返迴 UCS-4 編碼字符的大寫等價，指定通過 ucs4 若字符為小寫 (或標題大小寫)；否則，返迴字符自身。
注意： This function also returns the original character in the rare case of the uppercase form of the character requiring two or more characters.
注意：
在 Qt 6 之前，此函數接受
uint
自變量並返迴
uint
.
這是重載函數。
另請參閱 QString::toUpper ().
[constexpr noexcept]
char16_t
&QChar::
unicode
()
返迴數值 Unicode 值的引用對於 QChar .
[constexpr noexcept]
char16_t
QChar::
unicode
() const
返迴數值 Unicode 值對於 QChar .
[noexcept]
QChar::UnicodeVersion
QChar::
unicodeVersion
() const
返迴引入此字符的 Unicode 版本。
[static noexcept]
QChar::UnicodeVersion
QChar::
unicodeVersion
(
char32_t
ucs4
)
返迴引入字符的 Unicode 版本, UCS-4 編碼形式的指定為 ucs4 .
注意：
在 Qt 6 之前，此函數接受
uint
自變量。
這是重載函數。
[constexpr noexcept]
bool
operator!=
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
if
c1
and
c2
不是相同 Unicode 字符；否則返迴
false
.
[constexpr noexcept]
bool
operator<
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
若數值 Unicode 值對於
c1
小於
c2
；否則返迴
false
.
寫入字符 chr 到流 out .
另請參閱 序列化 Qt 數據類型 .
[constexpr noexcept]
bool
operator<=
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
若數值 Unicode 值對於
c1
<=
c2
；否則返迴
false
.
[constexpr noexcept]
bool
operator==
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
if
c1
and
c2
是相同 Unicode 字符；否則返迴
false
.
[constexpr noexcept]
bool
operator>
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
若數值 Unicode 值對於
c1
大於
c2
；否則返迴
false
.
[constexpr noexcept]
bool
operator>=
(const
QChar
&
c1
, const
QChar
&
c2
)
返迴
true
若數值 Unicode 值對於
c1
>=
c2
；否則返迴
false
.
讀取字符從流 in 到字符 chr .
另請參閱 序列化 Qt 數據類型 .