projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| 0f5d89e8 A |
1 | // © 2017 and later: Unicode, Inc. and others. |
| 2 | // License & terms of use: http://www.unicode.org/copyright.html | |
| 3 | ||
| 4 | // bytesinkutil.h | |
| 5 | // created: 2017sep14 Markus W. Scherer | |
| 6 | ||
| 7 | #include "unicode/utypes.h" | |
| 8 | #include "unicode/bytestream.h" | |
| 9 | #include "unicode/edits.h" | |
| 10 | #include "cmemory.h" | |
| 11 | #include "uassert.h" | |
| 12 | ||
| 13 | U_NAMESPACE_BEGIN | |
| 14 | ||
| 15 | class ByteSink; | |
| 16 | class Edits; | |
| 17 | ||
| 18 | class U_COMMON_API ByteSinkUtil { | |
| 19 | public: | |
| 20 | ByteSinkUtil() = delete; // all static | |
| 21 | ||
| 22 | /** (length) bytes were mapped to valid (s16, s16Length). */ | |
| 23 | static UBool appendChange(int32_t length, | |
| 24 | const char16_t *s16, int32_t s16Length, | |
| 25 | ByteSink &sink, Edits *edits, UErrorCode &errorCode); | |
| 26 | ||
| 27 | /** The bytes at [s, limit[ were mapped to valid (s16, s16Length). */ | |
| 28 | static UBool appendChange(const uint8_t *s, const uint8_t *limit, | |
| 29 | const char16_t *s16, int32_t s16Length, | |
| 30 | ByteSink &sink, Edits *edits, UErrorCode &errorCode); | |
| 31 | ||
| 32 | /** (length) bytes were mapped/changed to valid code point c. */ | |
| 33 | static void appendCodePoint(int32_t length, UChar32 c, ByteSink &sink, Edits *edits = nullptr); | |
| 34 | ||
| 35 | /** The few bytes at [src, nextSrc[ were mapped/changed to valid code point c. */ | |
| 36 | static inline void appendCodePoint(const uint8_t *src, const uint8_t *nextSrc, UChar32 c, | |
| 37 | ByteSink &sink, Edits *edits = nullptr) { | |
| 38 | appendCodePoint((int32_t)(nextSrc - src), c, sink, edits); | |
| 39 | } | |
| 40 | ||
| 41 | /** Append the two-byte character (U+0080..U+07FF). */ | |
| 42 | static void appendTwoBytes(UChar32 c, ByteSink &sink); | |
| 43 | ||
| 44 | static UBool appendUnchanged(const uint8_t *s, int32_t length, | |
| 45 | ByteSink &sink, uint32_t options, Edits *edits, | |
| 46 | UErrorCode &errorCode) { | |
| 47 | if (U_FAILURE(errorCode)) { return FALSE; } | |
| 48 | if (length > 0) { appendNonEmptyUnchanged(s, length, sink, options, edits); } | |
| 49 | return TRUE; | |
| 50 | } | |
| 51 | ||
| 52 | static UBool appendUnchanged(const uint8_t *s, const uint8_t *limit, | |
| 53 | ByteSink &sink, uint32_t options, Edits *edits, | |
| 54 | UErrorCode &errorCode); | |
| 55 | ||
| 56 | private: | |
| 57 | static void appendNonEmptyUnchanged(const uint8_t *s, int32_t length, | |
| 58 | ByteSink &sink, uint32_t options, Edits *edits); | |
| 59 | }; | |
| 60 | ||
| 61 | U_NAMESPACE_END |