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juce_CharPointer_UTF32.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - ROLI Ltd.
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 The code included in this file is provided under the terms of the ISC license
11 http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12 To use, copy, modify, and/or distribute this software for any purpose with or
13 without fee is hereby granted provided that the above copyright notice and
14 this permission notice appear in all copies.
15
16 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18 DISCLAIMED.
19
20 ==============================================================================
21*/
22
23namespace juce
24{
25
26//==============================================================================
35{
36public:
37 using CharType = juce_wchar;
38
39 inline explicit CharPointer_UTF32 (const CharType* rawPointer) noexcept
40 : data (const_cast<CharType*> (rawPointer))
41 {
42 }
43
44 inline CharPointer_UTF32 (const CharPointer_UTF32& other) = default;
45
47 {
48 data = other.data;
49 return *this;
50 }
51
52 inline CharPointer_UTF32 operator= (const CharType* text) noexcept
53 {
54 data = const_cast<CharType*> (text);
55 return *this;
56 }
57
59 inline bool operator== (CharPointer_UTF32 other) const noexcept { return data == other.data; }
60 inline bool operator!= (CharPointer_UTF32 other) const noexcept { return data != other.data; }
61 inline bool operator<= (CharPointer_UTF32 other) const noexcept { return data <= other.data; }
62 inline bool operator< (CharPointer_UTF32 other) const noexcept { return data < other.data; }
63 inline bool operator>= (CharPointer_UTF32 other) const noexcept { return data >= other.data; }
64 inline bool operator> (CharPointer_UTF32 other) const noexcept { return data > other.data; }
65
67 inline CharType* getAddress() const noexcept { return data; }
68
70 inline operator const CharType*() const noexcept { return data; }
71
73 inline bool isEmpty() const noexcept { return *data == 0; }
74
76 inline bool isNotEmpty() const noexcept { return *data != 0; }
77
79 inline juce_wchar operator*() const noexcept { return *data; }
80
83 {
84 ++data;
85 return *this;
86 }
87
90 {
91 --data;
92 return *this;
93 }
94
97 inline juce_wchar getAndAdvance() noexcept { return *data++; }
98
101 {
102 auto temp (*this);
103 ++data;
104 return temp;
105 }
106
108 inline void operator+= (int numToSkip) noexcept
109 {
110 data += numToSkip;
111 }
112
113 inline void operator-= (int numToSkip) noexcept
114 {
115 data -= numToSkip;
116 }
117
119 inline juce_wchar& operator[] (int characterIndex) const noexcept
120 {
121 return data [characterIndex];
122 }
123
126 {
127 return CharPointer_UTF32 (data + numToSkip);
128 }
129
132 {
133 return CharPointer_UTF32 (data - numToSkip);
134 }
135
137 inline void write (juce_wchar charToWrite) noexcept
138 {
139 *data++ = charToWrite;
140 }
141
142 inline void replaceChar (juce_wchar newChar) noexcept
143 {
144 *data = newChar;
145 }
146
149 {
150 *data = 0;
151 }
152
155 {
156 #if JUCE_NATIVE_WCHAR_IS_UTF32 && ! JUCE_ANDROID
157 return wcslen (data);
158 #else
159 size_t n = 0;
160 while (data[n] != 0)
161 ++n;
162 return n;
163 #endif
164 }
165
167 size_t lengthUpTo (size_t maxCharsToCount) const noexcept
168 {
170 }
171
173 size_t lengthUpTo (CharPointer_UTF32 end) const noexcept
174 {
175 return CharacterFunctions::lengthUpTo (*this, end);
176 }
177
182 {
183 return sizeof (CharType) * (length() + 1);
184 }
185
189 static inline size_t getBytesRequiredFor (juce_wchar) noexcept
190 {
191 return sizeof (CharType);
192 }
193
198 template <class CharPointer>
199 static size_t getBytesRequiredFor (CharPointer text) noexcept
200 {
201 return sizeof (CharType) * text.length();
202 }
203
209
211 template <typename CharPointer>
212 void writeAll (CharPointer src) noexcept
213 {
215 }
216
219 {
220 auto* s = src.data;
221
222 while ((*data = *s) != 0)
223 {
224 ++data;
225 ++s;
226 }
227 }
228
233 template <typename CharPointer>
238
243 template <typename CharPointer>
248
250 template <typename CharPointer>
251 int compare (CharPointer other) const noexcept
252 {
253 return CharacterFunctions::compare (*this, other);
254 }
255
256 #if JUCE_NATIVE_WCHAR_IS_UTF32 && ! JUCE_ANDROID
258 int compare (CharPointer_UTF32 other) const noexcept
259 {
260 return wcscmp (data, other.data);
261 }
262 #endif
263
265 template <typename CharPointer>
266 int compareUpTo (CharPointer other, int maxChars) const noexcept
267 {
269 }
270
272 template <typename CharPointer>
277
279 template <typename CharPointer>
284
286 template <typename CharPointer>
287 int indexOf (CharPointer stringToFind) const noexcept
288 {
290 }
291
293 int indexOf (juce_wchar charToFind) const noexcept
294 {
295 int i = 0;
296
297 while (data[i] != 0)
298 {
299 if (data[i] == charToFind)
300 return i;
301
302 ++i;
303 }
304
305 return -1;
306 }
307
309 int indexOf (juce_wchar charToFind, bool ignoreCase) const noexcept
310 {
311 return ignoreCase ? CharacterFunctions::indexOfCharIgnoreCase (*this, charToFind)
313 }
314
316 bool isWhitespace() const { return CharacterFunctions::isWhitespace (*data) != 0; }
318 bool isDigit() const { return CharacterFunctions::isDigit (*data) != 0; }
320 bool isLetter() const { return CharacterFunctions::isLetter (*data) != 0; }
322 bool isLetterOrDigit() const { return CharacterFunctions::isLetterOrDigit (*data) != 0; }
324 bool isUpperCase() const { return CharacterFunctions::isUpperCase (*data) != 0; }
326 bool isLowerCase() const { return CharacterFunctions::isLowerCase (*data) != 0; }
327
332
334 int getIntValue32() const noexcept { return CharacterFunctions::getIntValue <int, CharPointer_UTF32> (*this); }
336 int64 getIntValue64() const noexcept { return CharacterFunctions::getIntValue <int64, CharPointer_UTF32> (*this); }
337
340
343
345 static bool canRepresent (juce_wchar character) noexcept
346 {
347 return ((uint32) character) < (uint32) 0x10ffff;
348 }
349
351 static bool isValidString (const CharType* dataToTest, int maxBytesToRead)
352 {
353 maxBytesToRead /= (int) sizeof (CharType);
354
355 while (--maxBytesToRead >= 0 && *dataToTest != 0)
356 if (! canRepresent (*dataToTest++))
357 return false;
358
359 return true;
360 }
361
364 {
365 return CharPointer_UTF32 (reinterpret_cast<Atomic<CharType*>&> (data).exchange (newValue.data));
366 }
367
368private:
369 CharType* data;
370};
371
372} // namespace juce
ElementType * data() noexcept
Definition juce_Array.h:360
void writeNull() const noexcept
static bool isValidString(const CharType *dataToTest, int maxBytesToRead)
void write(juce_wchar charToWrite) noexcept
CharPointer_UTF32 operator++() noexcept
CharPointer_UTF32 atomicSwap(CharPointer_UTF32 newValue)
bool operator==(CharPointer_UTF32 other) const noexcept
static size_t getBytesRequiredFor(CharPointer text) noexcept
int compareIgnoreCase(CharPointer other) const
void operator+=(int numToSkip) noexcept
CharPointer_UTF32 operator--() noexcept
CharPointer_UTF32 findTerminatingNull() const noexcept
int64 getIntValue64() const noexcept
size_t writeWithDestByteLimit(CharPointer src, size_t maxDestBytes) noexcept
juce_wchar & operator[](int characterIndex) const noexcept
int indexOf(CharPointer stringToFind) const noexcept
juce_wchar toLowerCase() const noexcept
void writeAll(CharPointer_UTF32 src) noexcept
CharType * getAddress() const noexcept
void writeWithCharLimit(CharPointer src, int maxChars) noexcept
bool isEmpty() const noexcept
bool isNotEmpty() const noexcept
size_t sizeInBytes() const noexcept
CharPointer_UTF32 findEndOfWhitespace() const noexcept
size_t lengthUpTo(CharPointer_UTF32 end) const noexcept
size_t length() const noexcept
CharPointer_UTF32 operator+(int numToSkip) const noexcept
juce_wchar toUpperCase() const noexcept
int getIntValue32() const noexcept
static bool canRepresent(juce_wchar character) noexcept
int indexOf(juce_wchar charToFind) const noexcept
static size_t getBytesRequiredFor(juce_wchar) noexcept
size_t lengthUpTo(size_t maxCharsToCount) const noexcept
int compare(CharPointer other) const noexcept
int compareIgnoreCaseUpTo(CharPointer other, int maxChars) const noexcept
juce_wchar getAndAdvance() noexcept
juce_wchar operator*() const noexcept
int indexOf(juce_wchar charToFind, bool ignoreCase) const noexcept
CharPointer_UTF32 operator-(int numToSkip) const noexcept
int compareUpTo(CharPointer other, int maxChars) const noexcept
double getDoubleValue() const noexcept
void writeAll(CharPointer src) noexcept
static int compare(juce_wchar char1, juce_wchar char2) noexcept
static juce_wchar toLowerCase(juce_wchar character) noexcept
static size_t copyWithDestByteLimit(DestCharPointerType &dest, SrcCharPointerType src, size_t maxBytesToWrite) noexcept
static int indexOfCharIgnoreCase(Type text, juce_wchar charToFind) noexcept
static bool isDigit(char character) noexcept
static int compareIgnoreCaseUpTo(CharPointerType1 s1, CharPointerType2 s2, int maxChars) noexcept
static int indexOfChar(Type text, const juce_wchar charToFind) noexcept
static int compareIgnoreCase(juce_wchar char1, juce_wchar char2) noexcept
static bool isLowerCase(juce_wchar character) noexcept
static bool isLetter(char character) noexcept
static int indexOf(CharPointerType1 textToSearch, const CharPointerType2 substringToLookFor) noexcept
static size_t lengthUpTo(CharPointerType text, const size_t maxCharsToCount) noexcept
static Type findEndOfWhitespace(Type text) noexcept
static void copyWithCharLimit(DestCharPointerType &dest, SrcCharPointerType src, int maxChars) noexcept
static bool isWhitespace(char character) noexcept
static bool isLetterOrDigit(char character) noexcept
static juce_wchar toUpperCase(juce_wchar character) noexcept
static bool isUpperCase(juce_wchar character) noexcept
static double getDoubleValue(CharPointerType text) noexcept
static void copyAll(DestCharPointerType &dest, SrcCharPointerType src) noexcept
static int compareUpTo(CharPointerType1 s1, CharPointerType2 s2, int maxChars) noexcept