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comparison: intl/icu/source/common/appendable.cpp
intl/icu/source/common/appendable.cpp
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| -1:000000000000 | 0:89f637b88230 |
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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * Copyright (C) 2011-2012, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 ******************************************************************************* | |
| 6 * file name: appendable.cpp | |
| 7 * encoding: US-ASCII | |
| 8 * tab size: 8 (not used) | |
| 9 * indentation:4 | |
| 10 * | |
| 11 * created on: 2010dec07 | |
| 12 * created by: Markus W. Scherer | |
| 13 */ | |
| 14 | |
| 15 #include "unicode/utypes.h" | |
| 16 #include "unicode/appendable.h" | |
| 17 #include "unicode/utf16.h" | |
| 18 | |
| 19 U_NAMESPACE_BEGIN | |
| 20 | |
| 21 Appendable::~Appendable() {} | |
| 22 | |
| 23 UBool | |
| 24 Appendable::appendCodePoint(UChar32 c) { | |
| 25 if(c<=0xffff) { | |
| 26 return appendCodeUnit((UChar)c); | |
| 27 } else { | |
| 28 return appendCodeUnit(U16_LEAD(c)) && appendCodeUnit(U16_TRAIL(c)); | |
| 29 } | |
| 30 } | |
| 31 | |
| 32 UBool | |
| 33 Appendable::appendString(const UChar *s, int32_t length) { | |
| 34 if(length<0) { | |
| 35 UChar c; | |
| 36 while((c=*s++)!=0) { | |
| 37 if(!appendCodeUnit(c)) { | |
| 38 return FALSE; | |
| 39 } | |
| 40 } | |
| 41 } else if(length>0) { | |
| 42 const UChar *limit=s+length; | |
| 43 do { | |
| 44 if(!appendCodeUnit(*s++)) { | |
| 45 return FALSE; | |
| 46 } | |
| 47 } while(s<limit); | |
| 48 } | |
| 49 return TRUE; | |
| 50 } | |
| 51 | |
| 52 UBool | |
| 53 Appendable::reserveAppendCapacity(int32_t /*appendCapacity*/) { | |
| 54 return TRUE; | |
| 55 } | |
| 56 | |
| 57 UChar * | |
| 58 Appendable::getAppendBuffer(int32_t minCapacity, | |
| 59 int32_t /*desiredCapacityHint*/, | |
| 60 UChar *scratch, int32_t scratchCapacity, | |
| 61 int32_t *resultCapacity) { | |
| 62 if(minCapacity<1 || scratchCapacity<minCapacity) { | |
| 63 *resultCapacity=0; | |
| 64 return NULL; | |
| 65 } | |
| 66 *resultCapacity=scratchCapacity; | |
| 67 return scratch; | |
| 68 } | |
| 69 | |
| 70 // UnicodeStringAppendable is implemented in unistr.cpp. | |
| 71 | |
| 72 U_NAMESPACE_END |
