16f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org/* 26f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org********************************************************************** 36f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org* Copyright (C) 1999-2011, International Business Machines 46f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org* Corporation and others. All Rights Reserved. 56f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org********************************************************************** 66f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org*/ 76f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 86f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org#include "unicode/chariter.h" 96f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 106f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgU_NAMESPACE_BEGIN 116f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 126f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgForwardCharacterIterator::~ForwardCharacterIterator() {} 136f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgForwardCharacterIterator::ForwardCharacterIterator() 146f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: UObject() 156f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org{} 166f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgForwardCharacterIterator::ForwardCharacterIterator(const ForwardCharacterIterator &other) 176f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: UObject(other) 186f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org{} 196f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 206f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 216f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::CharacterIterator() 226f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: textLength(0), pos(0), begin(0), end(0) { 236f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 246f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 256f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::CharacterIterator(int32_t length) 266f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: textLength(length), pos(0), begin(0), end(length) { 276f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(textLength < 0) { 286f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org textLength = end = 0; 296f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 306f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 316f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 326f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::CharacterIterator(int32_t length, int32_t position) 336f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: textLength(length), pos(position), begin(0), end(length) { 346f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(textLength < 0) { 356f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org textLength = end = 0; 366f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 376f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(pos < 0) { 386f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org pos = 0; 396f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } else if(pos > end) { 406f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org pos = end; 416f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 426f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 436f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 446f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::CharacterIterator(int32_t length, int32_t textBegin, int32_t textEnd, int32_t position) 456f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org: textLength(length), pos(position), begin(textBegin), end(textEnd) { 466f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(textLength < 0) { 476f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org textLength = 0; 486f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 496f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(begin < 0) { 506f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org begin = 0; 516f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } else if(begin > textLength) { 526f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org begin = textLength; 536f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 546f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(end < begin) { 556f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org end = begin; 566f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } else if(end > textLength) { 576f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org end = textLength; 586f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 596f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org if(pos < begin) { 606f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org pos = begin; 616f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } else if(pos > end) { 626f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org pos = end; 636f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org } 646f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 656f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 666f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::~CharacterIterator() {} 676f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 686f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::CharacterIterator(const CharacterIterator &that) : 696f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgForwardCharacterIterator(that), 706f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgtextLength(that.textLength), pos(that.pos), begin(that.begin), end(that.end) 716f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org{ 726f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 736f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 746f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator & 756f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::operator=(const CharacterIterator &that) { 766f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org ForwardCharacterIterator::operator=(that); 776f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org textLength = that.textLength; 786f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org pos = that.pos; 796f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org begin = that.begin; 806f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org end = that.end; 816f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org return *this; 826f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 836f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 846f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org// implementing first[32]PostInc() directly in a subclass should be faster 856f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org// but these implementations make subclassing a little easier 866f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgUChar 876f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::firstPostInc(void) { 886f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org setToStart(); 896f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org return nextPostInc(); 906f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 916f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 926f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgUChar32 936f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgCharacterIterator::first32PostInc(void) { 946f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org setToStart(); 956f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org return next32PostInc(); 966f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org} 976f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.org 986f31ac30b9092fd02a8c97e5216cf53f3e4fae4jshin@chromium.orgU_NAMESPACE_END 99