| | 1 | /******************************************************************** |
| | 2 | * COPYRIGHT: |
| | 3 | * Copyright (c) 1997-2003, International Business Machines Corporation and |
| | 4 | * others. All Rights Reserved. |
| | 5 | ********************************************************************/ |
| | 6 | |
| | 7 | #ifndef SFDWCHIT_H |
| | 8 | #define SFDWCHIT_H |
| | 9 | |
| | 10 | #include "unicode/chariter.h" |
| | 11 | #include "intltest.h" |
| | 12 | |
| | 13 | class SimpleFwdCharIterator : public ForwardCharacterIterator { |
| | 14 | public: |
| | 15 | // not used -- SimpleFwdCharIterator(const UnicodeString& s); |
| | 16 | SimpleFwdCharIterator(UChar *s, int32_t len, UBool adopt = FALSE); |
| | 17 | |
| | 18 | virtual ~SimpleFwdCharIterator(); |
| | 19 | |
| | 20 | /** |
| | 21 | * Returns true when both iterators refer to the same |
| | 22 | * character in the same character-storage object. |
| | 23 | */ |
| | 24 | // not used -- virtual UBool operator==(const ForwardCharacterIterator& that) const; |
| | 25 | |
| | 26 | /** |
| | 27 | * Generates a hash code for this iterator. |
| | 28 | */ |
| | 29 | virtual int32_t hashCode(void) const; |
| | 30 | |
| | 31 | /** |
| | 32 | * Returns a UClassID for this ForwardCharacterIterator ("poor man's |
| | 33 | * RTTI").<P> Despite the fact that this function is public, |
| | 34 | * DO NOT CONSIDER IT PART OF CHARACTERITERATOR'S API! |
| | 35 | */ |
| | 36 | virtual UClassID getDynamicClassID(void) const; |
| | 37 | |
| | 38 | /** |
| | 39 | * Gets the current code unit for returning and advances to the next code unit |
| | 40 | * in the iteration range |
| | 41 | * (toward endIndex()). If there are |
| | 42 | * no more code units to return, returns DONE. |
| | 43 | */ |
| | 44 | virtual UChar nextPostInc(void); |
| | 45 | |
| | 46 | /** |
| | 47 | * Gets the current code point for returning and advances to the next code point |
| | 48 | * in the iteration range |
| | 49 | * (toward endIndex()). If there are |
| | 50 | * no more code points to return, returns DONE. |
| | 51 | */ |
| | 52 | virtual UChar32 next32PostInc(void); |
| | 53 | |
| | 54 | /** |
| | 55 | * Returns FALSE if there are no more code units or code points |
| | 56 | * at or after the current position in the iteration range. |
| | 57 | * This is used with nextPostInc() or next32PostInc() in forward |
| | 58 | * iteration. |
| | 59 | */ |
| | 60 | virtual UBool hasNext(); |
| | 61 | |
| | 62 | protected: |
| | 63 | SimpleFwdCharIterator() {} |
| | 64 | SimpleFwdCharIterator(const SimpleFwdCharIterator &other) |
| | 65 | : ForwardCharacterIterator(other) {} |
| | 66 | SimpleFwdCharIterator &operator=(const SimpleFwdCharIterator&) { return *this; } |
| | 67 | private: |
| | 68 | static const int32_t kInvalidHashCode; |
| | 69 | static const int32_t kEmptyHashCode; |
| | 70 | |
| | 71 | UChar *fStart, *fEnd, *fCurrent; |
| | 72 | int32_t fLen; |
| | 73 | UBool fBogus; |
| | 74 | int32_t fHashCode; |
| | 75 | }; |
| | 76 | |
| | 77 | #endif |
projects / apple / icu.git / blame_incremental