1 /*
2    +----------------------------------------------------------------------+
3    | This source file is subject to version 3.01 of the PHP license,      |
4    | that is bundled with this package in the file LICENSE, and is        |
5    | available through the world-wide-web at the following url:           |
6    | https://www.php.net/license/3_01.txt                                 |
7    | If you did not receive a copy of the PHP license and are unable to   |
8    | obtain it through the world-wide-web, please send a note to          |
9    | license@php.net so we can mail you a copy immediately.               |
10    +----------------------------------------------------------------------+
11    | Authors: Gustavo Lopes <cataphract@php.net>                          |
12    +----------------------------------------------------------------------+
13  */
14 
15 #ifndef CODEPOINTITERATOR_INTERNAL_H
16 #define CODEPOINTITERATOR_INTERNAL_H
17 
18 #include <unicode/brkiter.h>
19 #include <unicode/unistr.h>
20 
21 using icu::BreakIterator;
22 using icu::CharacterIterator;
23 using icu::UnicodeString;
24 
25 namespace PHP {
26 
27 	class CodePointBreakIterator : public BreakIterator {
28 
29 	public:
30 		static UClassID getStaticClassID();
31 
32 		CodePointBreakIterator();
33 
34 		CodePointBreakIterator(const CodePointBreakIterator &other);
35 
36 		CodePointBreakIterator& operator=(const CodePointBreakIterator& that);
37 
38 		~CodePointBreakIterator() override;
39 
40 #if U_ICU_VERSION_MAJOR_NUM >= 70
41 		bool operator==(const BreakIterator& that) const override;
42 #else
43 		UBool operator==(const BreakIterator& that) const override;
44 #endif
45 
46 		CodePointBreakIterator* clone(void) const override;
47 
48 		UClassID getDynamicClassID(void) const override;
49 
50 		CharacterIterator& getText(void) const override;
51 
52 		UText *getUText(UText *fillIn, UErrorCode &status) const override;
53 
54 		void setText(const UnicodeString &text) override;
55 
56 		void setText(UText *text, UErrorCode &status) override;
57 
58 		void adoptText(CharacterIterator* it) override;
59 
60 		int32_t first(void) override;
61 
62 		int32_t last(void) override;
63 
64 		int32_t previous(void) override;
65 
66 		int32_t next(void) override;
67 
68 		int32_t current(void) const override;
69 
70 		int32_t following(int32_t offset) override;
71 
72 		int32_t preceding(int32_t offset) override;
73 
74 		UBool isBoundary(int32_t offset) override;
75 
76 		int32_t next(int32_t n) override;
77 
78 		CodePointBreakIterator *createBufferClone(void *stackBuffer,
79 														  int32_t &BufferSize,
80 														  UErrorCode &status) override;
81 
82 		CodePointBreakIterator &refreshInputText(UText *input, UErrorCode &status) override;
83 
getLastCodePoint()84 		inline UChar32 getLastCodePoint()
85 		{
86 			return this->lastCodePoint;
87 		}
88 
89 	private:
90 		UText *fText;
91 		UChar32 lastCodePoint;
92 		mutable CharacterIterator *fCharIter;
93 
clearCurrentCharIter()94 		inline void clearCurrentCharIter()
95 		{
96 			delete this->fCharIter;
97 			this->fCharIter = NULL;
98 			this->lastCodePoint = U_SENTINEL;
99 		}
100 	};
101 }
102 
103 #endif
104