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alphaindex.h
26.27
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appendable.h
8.43
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basictz.h
8.84
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brkiter.h
27.54
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bytestream.h
9.59
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bytestrie.h
19.26
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bytestriebuilder.h
7.1
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calendar.h
105.35
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caniter.h
7.35
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casemap.h
25.31
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char16ptr.h
7.29
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chariter.h
24
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choicfmt.h
23.85
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coleitr.h
13.7
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coll.h
55.61
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compactdecimalformat.h
16.58
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curramt.h
3.69
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currpinf.h
7.08
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currunit.h
3.49
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datefmt.h
40.18
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dbbi.h
1.11
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dcfmtsym.h
17.66
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decimfmt.h
89.73
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docmain.h
6.56
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dtfmtsym.h
37.64
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dtintrv.h
3.76
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dtitvfmt.h
42.87
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dtitvinf.h
18.46
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dtptngen.h
23.72
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dtrule.h
8.62
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edits.h
15.54
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enumset.h
2.05
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errorcode.h
4.78
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fieldpos.h
8.63
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filteredbrk.h
5.46
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fmtable.h
24.39
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format.h
12.44
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fpositer.h
3.14
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gender.h
3.18
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gregocal.h
31.57
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icudataver.h
1.03
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icuplug.h
11.86
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idna.h
12.63
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listformatter.h
4.98
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localpointer.h
16.88
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locdspnm.h
7.05
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locid.h
31.4
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measfmt.h
11.25
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measunit.h
37.74
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measure.h
4.26
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messagepattern.h
33.64
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msgfmt.h
43.16
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normalizer2.h
33.97
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normlzr.h
30.74
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nounit.h
2.6
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numberformatter.h
64.98
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numfmt.h
47.76
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numsys.h
6.73
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parseerr.h
3.08
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parsepos.h
5.45
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platform.h
27.19
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plurfmt.h
25.66
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plurrule.h
18.34
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ptypes.h
3.47
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putil.h
6.34
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rbbi.h
27.09
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rbnf.h
49.76
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rbtz.h
15.47
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regex.h
84.91
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region.h
9.12
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reldatefmt.h
14.3
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rep.h
9.5
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resbund.h
18.01
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schriter.h
6.26
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scientificnumberformatter.h
6.59
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search.h
22.21
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selfmt.h
14.24
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simpleformatter.h
11.43
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simpletz.h
45.24
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smpdtfmt.h
70.09
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sortkey.h
11.12
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std_string.h
1015
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strenum.h
10.04
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stringoptions.h
5.89
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stringpiece.h
6.46
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stringtriebuilder.h
15.2
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stsearch.h
21.29
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symtable.h
4.21
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tblcoll.h
36.4
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timezone.h
40.83
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tmunit.h
3.29
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tmutamt.h
4.8
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tmutfmt.h
7.79
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translit.h
54.53
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tzfmt.h
42.81
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tznames.h
16.79
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tzrule.h
35.32
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tztrans.h
6.07
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ubidi.h
89.28
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ubiditransform.h
12.71
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ubrk.h
24.08
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ucal.h
54.56
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ucasemap.h
15.18
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ucat.h
5.36
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uchar.h
131.61
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ucharstrie.h
21.06
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ucharstriebuilder.h
7.14
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uchriter.h
13.14
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uclean.h
11.24
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ucnv.h
83.06
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ucnv_cb.h
6.59
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ucnv_err.h
20.98
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ucnvsel.h
6.14
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ucol.h
61.36
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ucoleitr.h
9.46
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uconfig.h
11.91
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ucsdet.h
14.67
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ucurr.h
15.15
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udat.h
60.13
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udata.h
15.53
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udateintervalformat.h
6.79
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udatpg.h
24.11
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udisplaycontext.h
5.89
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uenum.h
7.9
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ufieldpositer.h
4.36
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uformattable.h
10.94
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ugender.h
2
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uidna.h
33.37
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uiter.h
22.77
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uldnames.h
10.45
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ulistformatter.h
4.54
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uloc.h
50.75
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ulocdata.h
11.26
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umachine.h
13.1
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umisc.h
1.33
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umsg.h
24.23
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unifilt.h
3.63
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unifunct.h
3.98
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unimatch.h
6.04
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unirepl.h
3.32
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uniset.h
63.98
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unistr.h
175.58
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unorm.h
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unorm2.h
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unum.h
52.49
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unumsys.h
7.14
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uobject.h
10.72
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upluralrules.h
6.77
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uregex.h
72.05
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uregion.h
9.84
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ureldatefmt.h
12.22
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urename.h
124.49
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urep.h
5.38
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ures.h
36.52
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uscript.h
25.91
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usearch.h
38.14
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uset.h
39.91
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usetiter.h
9.49
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ushape.h
18
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uspoof.h
64.9
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usprep.h
8.13
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ustdio.h
38.54
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ustream.h
1.8
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ustring.h
72.52
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ustringtrie.h
3.15
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utext.h
58.11
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utf.h
7.86
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utf16.h
22.49
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utf32.h
763
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utf8.h
28.16
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utf_old.h
43.78
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utmscale.h
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utrace.h
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utrans.h
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utypes.h
29.92
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uvernum.h
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uversion.h
6.4
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vtzone.h
20.17
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// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ****************************************************************************** * Copyright (C) 1997-2014, International Business Machines * Corporation and others. All Rights Reserved. ****************************************************************************** */ /** * \file * \brief C++ API: Collation Element Iterator. */ /** * File coleitr.h * * Created by: Helena Shih * * Modification History: * * Date Name Description * * 8/18/97 helena Added internal API documentation. * 08/03/98 erm Synched with 1.2 version CollationElementIterator.java * 12/10/99 aliu Ported Thai collation support from Java. * 01/25/01 swquek Modified into a C++ wrapper calling C APIs (ucoliter.h) * 02/19/01 swquek Removed CollationElementsIterator() since it is * private constructor and no calls are made to it * 2012-2014 markus Rewritten in C++ again. */ #ifndef COLEITR_H #define COLEITR_H #include "unicode/utypes.h" #if !UCONFIG_NO_COLLATION #include "unicode/unistr.h" #include "unicode/uobject.h" struct UCollationElements; struct UHashtable; U_NAMESPACE_BEGIN struct CollationData; class CharacterIterator; class CollationIterator; class RuleBasedCollator; class UCollationPCE; class UVector32; /** * The CollationElementIterator class is used as an iterator to walk through * each character of an international string. Use the iterator to return the * ordering priority of the positioned character. The ordering priority of a * character, which we refer to as a key, defines how a character is collated in * the given collation object. * For example, consider the following in Slovak and in traditional Spanish collation: * <pre> * "ca" -> the first key is key('c') and second key is key('a'). * "cha" -> the first key is key('ch') and second key is key('a').</pre> * And in German phonebook collation, * <pre> \htmlonly "æb"-> the first key is key('a'), the second key is key('e'), and * the third key is key('b'). \endhtmlonly </pre> * The key of a character, is an integer composed of primary order(short), * secondary order(char), and tertiary order(char). Java strictly defines the * size and signedness of its primitive data types. Therefore, the static * functions primaryOrder(), secondaryOrder(), and tertiaryOrder() return * int32_t to ensure the correctness of the key value. * <p>Example of the iterator usage: (without error checking) * <pre> * \code * void CollationElementIterator_Example() * { * UnicodeString str = "This is a test"; * UErrorCode success = U_ZERO_ERROR; * RuleBasedCollator* rbc = * (RuleBasedCollator*) RuleBasedCollator::createInstance(success); * CollationElementIterator* c = * rbc->createCollationElementIterator( str ); * int32_t order = c->next(success); * c->reset(); * order = c->previous(success); * delete c; * delete rbc; * } * \endcode * </pre> * <p> * The method next() returns the collation order of the next character based on * the comparison level of the collator. The method previous() returns the * collation order of the previous character based on the comparison level of * the collator. The Collation Element Iterator moves only in one direction * between calls to reset(), setOffset(), or setText(). That is, next() * and previous() can not be inter-used. Whenever previous() is to be called after * next() or vice versa, reset(), setOffset() or setText() has to be called first * to reset the status, shifting pointers to either the end or the start of * the string (reset() or setText()), or the specified position (setOffset()). * Hence at the next call of next() or previous(), the first or last collation order, * or collation order at the spefcifieid position will be returned. If a change of * direction is done without one of these calls, the result is undefined. * <p> * The result of a forward iterate (next()) and reversed result of the backward * iterate (previous()) on the same string are equivalent, if collation orders * with the value 0 are ignored. * Character based on the comparison level of the collator. A collation order * consists of primary order, secondary order and tertiary order. The data * type of the collation order is <strong>int32_t</strong>. * * Note, CollationElementIterator should not be subclassed. * @see Collator * @see RuleBasedCollator * @version 1.8 Jan 16 2001 */ class U_I18N_API CollationElementIterator U_FINAL : public UObject { public: // CollationElementIterator public data member ------------------------------ enum { /** * NULLORDER indicates that an error has occured while processing * @stable ICU 2.0 */ NULLORDER = (int32_t)0xffffffff }; // CollationElementIterator public constructor/destructor ------------------- /** * Copy constructor. * * @param other the object to be copied from * @stable ICU 2.0 */ CollationElementIterator(const CollationElementIterator& other); /** * Destructor * @stable ICU 2.0 */ virtual ~CollationElementIterator(); // CollationElementIterator public methods ---------------------------------- /** * Returns true if "other" is the same as "this" * * @param other the object to be compared * @return true if "other" is the same as "this" * @stable ICU 2.0 */ UBool operator==(const CollationElementIterator& other) const; /** * Returns true if "other" is not the same as "this". * * @param other the object to be compared * @return true if "other" is not the same as "this" * @stable ICU 2.0 */ UBool operator!=(const CollationElementIterator& other) const; /** * Resets the cursor to the beginning of the string. * @stable ICU 2.0 */ void reset(void); /** * Gets the ordering priority of the next character in the string. * @param status the error code status. * @return the next character's ordering. otherwise returns NULLORDER if an * error has occured or if the end of string has been reached * @stable ICU 2.0 */ int32_t next(UErrorCode& status); /** * Get the ordering priority of the previous collation element in the string. * @param status the error code status. * @return the previous element's ordering. otherwise returns NULLORDER if an * error has occured or if the start of string has been reached * @stable ICU 2.0 */ int32_t previous(UErrorCode& status); /** * Gets the primary order of a collation order. * @param order the collation order * @return the primary order of a collation order. * @stable ICU 2.0 */ static inline int32_t primaryOrder(int32_t order); /** * Gets the secondary order of a collation order. * @param order the collation order * @return the secondary order of a collation order. * @stable ICU 2.0 */ static inline int32_t secondaryOrder(int32_t order); /** * Gets the tertiary order of a collation order. * @param order the collation order * @return the tertiary order of a collation order. * @stable ICU 2.0 */ static inline int32_t tertiaryOrder(int32_t order); /** * Return the maximum length of any expansion sequences that end with the * specified comparison order. * @param order a collation order returned by previous or next. * @return maximum size of the expansion sequences ending with the collation * element or 1 if collation element does not occur at the end of any * expansion sequence * @stable ICU 2.0 */ int32_t getMaxExpansion(int32_t order) const; /** * Gets the comparison order in the desired strength. Ignore the other * differences. * @param order The order value * @stable ICU 2.0 */ int32_t strengthOrder(int32_t order) const; /** * Sets the source string. * @param str the source string. * @param status the error code status. * @stable ICU 2.0 */ void setText(const UnicodeString& str, UErrorCode& status); /** * Sets the source string. * @param str the source character iterator. * @param status the error code status. * @stable ICU 2.0 */ void setText(CharacterIterator& str, UErrorCode& status); /** * Checks if a comparison order is ignorable. * @param order the collation order. * @return TRUE if a character is ignorable, FALSE otherwise. * @stable ICU 2.0 */ static inline UBool isIgnorable(int32_t order); /** * Gets the offset of the currently processed character in the source string. * @return the offset of the character. * @stable ICU 2.0 */ int32_t getOffset(void) const; /** * Sets the offset of the currently processed character in the source string. * @param newOffset the new offset. * @param status the error code status. * @return the offset of the character. * @stable ICU 2.0 */ void setOffset(int32_t newOffset, UErrorCode& status); /** * ICU "poor man's RTTI", returns a UClassID for the actual class. * * @stable ICU 2.2 */ virtual UClassID getDynamicClassID() const; /** * ICU "poor man's RTTI", returns a UClassID for this class. * * @stable ICU 2.2 */ static UClassID U_EXPORT2 getStaticClassID(); #ifndef U_HIDE_INTERNAL_API /** @internal */ static inline CollationElementIterator *fromUCollationElements(UCollationElements *uc) { return reinterpret_cast<CollationElementIterator *>(uc); } /** @internal */ static inline const CollationElementIterator *fromUCollationElements(const UCollationElements *uc) { return reinterpret_cast<const CollationElementIterator *>(uc); } /** @internal */ inline UCollationElements *toUCollationElements() { return reinterpret_cast<UCollationElements *>(this); } /** @internal */ inline const UCollationElements *toUCollationElements() const { return reinterpret_cast<const UCollationElements *>(this); } #endif // U_HIDE_INTERNAL_API private: friend class RuleBasedCollator; friend class UCollationPCE; /** * CollationElementIterator constructor. This takes the source string and the * collation object. The cursor will walk thru the source string based on the * predefined collation rules. If the source string is empty, NULLORDER will * be returned on the calls to next(). * @param sourceText the source string. * @param order the collation object. * @param status the error code status. */ CollationElementIterator(const UnicodeString& sourceText, const RuleBasedCollator* order, UErrorCode& status); // Note: The constructors should take settings & tailoring, not a collator, // to avoid circular dependencies. // However, for operator==() we would need to be able to compare tailoring data for equality // without making CollationData or CollationTailoring depend on TailoredSet. // (See the implementation of RuleBasedCollator::operator==().) // That might require creating an intermediate class that would be used // by both CollationElementIterator and RuleBasedCollator // but only contain the part of RBC== related to data and rules. /** * CollationElementIterator constructor. This takes the source string and the * collation object. The cursor will walk thru the source string based on the * predefined collation rules. If the source string is empty, NULLORDER will * be returned on the calls to next(). * @param sourceText the source string. * @param order the collation object. * @param status the error code status. */ CollationElementIterator(const CharacterIterator& sourceText, const RuleBasedCollator* order, UErrorCode& status); /** * Assignment operator * * @param other the object to be copied */ const CollationElementIterator& operator=(const CollationElementIterator& other); CollationElementIterator(); // default constructor not implemented /** Normalizes dir_=1 (just after setOffset()) to dir_=0 (just after reset()). */ inline int8_t normalizeDir() const { return dir_ == 1 ? 0 : dir_; } static UHashtable *computeMaxExpansions(const CollationData *data, UErrorCode &errorCode); static int32_t getMaxExpansion(const UHashtable *maxExpansions, int32_t order); // CollationElementIterator private data members ---------------------------- CollationIterator *iter_; // owned const RuleBasedCollator *rbc_; // aliased uint32_t otherHalf_; /** * <0: backwards; 0: just after reset() (previous() begins from end); * 1: just after setOffset(); >1: forward */ int8_t dir_; /** * Stores offsets from expansions and from unsafe-backwards iteration, * so that getOffset() returns intermediate offsets for the CEs * that are consistent with forward iteration. */ UVector32 *offsets_; UnicodeString string_; }; // CollationElementIterator inline method definitions -------------------------- inline int32_t CollationElementIterator::primaryOrder(int32_t order) { return (order >> 16) & 0xffff; } inline int32_t CollationElementIterator::secondaryOrder(int32_t order) { return (order >> 8) & 0xff; } inline int32_t CollationElementIterator::tertiaryOrder(int32_t order) { return order & 0xff; } inline UBool CollationElementIterator::isIgnorable(int32_t order) { return (order & 0xffff0000) == 0; } U_NAMESPACE_END #endif /* #if !UCONFIG_NO_COLLATION */ #endif