/src/icu/source/common/usetiter.cpp

Source (jump to first uncovered line)
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (c) 2002-2006, International Business Machines
* Corporation and others.  All Rights Reserved.
**********************************************************************
*/
#include "unicode/usetiter.h"
#include "unicode/uniset.h"
#include "unicode/unistr.h"
#include "uvector.h"

U_NAMESPACE_BEGIN

UOBJECT_DEFINE_RTTI_IMPLEMENTATION(UnicodeSetIterator)

/**
 * Create an iterator
 * @param set set to iterate over
 */
UnicodeSetIterator::UnicodeSetIterator(const UnicodeSet& uSet) {
    cpString  = NULL;
    reset(uSet);
}

/**
 * Create an iterator. Convenience for when the contents are to be set later.
 */
UnicodeSetIterator::UnicodeSetIterator() {
    this->set = NULL;
    cpString  = NULL;
    reset();
}

UnicodeSetIterator::~UnicodeSetIterator() {
    delete cpString;
}

/**
 * Returns the next element in the set.
 * @return true if there was another element in the set.
 * if so, if codepoint == IS_STRING, the value is a string in the string field
 * else the value is a single code point in the codepoint field.
 * <br>You are guaranteed that the codepoints are in sorted order, and the strings are in sorted order,
 * and that all code points are returned before any strings are returned.
 * <br>Note also that the codepointEnd is undefined after calling this method.
 */
UBool UnicodeSetIterator::next() {
    if (nextElement <= endElement) {
        codepoint = codepointEnd = nextElement++;
        string = NULL;
        return TRUE;
    }
    if (range < endRange) {
        loadRange(++range);
        codepoint = codepointEnd = nextElement++;
        string = NULL;
        return TRUE;
    }

    if (nextString >= stringCount) return FALSE;
    codepoint = (UChar32)IS_STRING; // signal that value is actually a string
    string = (const UnicodeString*) set->strings->elementAt(nextString++);
    return TRUE;
}

/**
 * @return true if there was another element in the set.
 * if so, if codepoint == IS_STRING, the value is a string in the string field
 * else the value is a range of codepoints in the <codepoint, codepointEnd> fields.
 * <br>Note that the codepoints are in sorted order, and the strings are in sorted order,
 * and that all code points are returned before any strings are returned.
 * <br>You are guaranteed that the ranges are in sorted order, and the strings are in sorted order,
 * and that all ranges are returned before any strings are returned.
 * <br>You are also guaranteed that ranges are disjoint and non-contiguous.
 * <br>Note also that the codepointEnd is undefined after calling this method.
 */
UBool UnicodeSetIterator::nextRange() {
    string = NULL;
    if (nextElement <= endElement) {
        codepointEnd = endElement;
        codepoint = nextElement;
        nextElement = endElement+1;
        return TRUE;
    }
    if (range < endRange) {
        loadRange(++range);
        codepointEnd = endElement;
        codepoint = nextElement;
        nextElement = endElement+1;
        return TRUE;
    }

    if (nextString >= stringCount) return FALSE;
    codepoint = (UChar32)IS_STRING; // signal that value is actually a string
    string = (const UnicodeString*) set->strings->elementAt(nextString++);
    return TRUE;
}

/**
 *@param set the set to iterate over. This allows reuse of the iterator.
 */
void UnicodeSetIterator::reset(const UnicodeSet& uSet) {
    this->set = &uSet;
    reset();
}

/**
 * Resets to the start, to allow the iteration to start over again.
 */
void UnicodeSetIterator::reset() {
    if (set == NULL) {
        // Set up indices to empty iteration
        endRange = -1;
        stringCount = 0;
    } else {
        endRange = set->getRangeCount() - 1;
        stringCount = set->stringsSize();
    }
    range = 0;
    endElement = -1;
    nextElement = 0;            
    if (endRange >= 0) {
        loadRange(range);
    }
    nextString = 0;
    string = NULL;
}

void UnicodeSetIterator::loadRange(int32_t iRange) {
    nextElement = set->getRangeStart(iRange);
    endElement = set->getRangeEnd(iRange);
}


const UnicodeString& UnicodeSetIterator::getString()  {
    if (string==NULL && codepoint!=(UChar32)IS_STRING) {
       if (cpString == NULL) {
          cpString = new UnicodeString();
       }
       if (cpString != NULL) {
          cpString->setTo((UChar32)codepoint);
       }
       string = cpString;
    }
    return *string;
}

U_NAMESPACE_END

//eof

Line	Count	Source (jump to first uncovered line)
1		// © 2016 and later: Unicode, Inc. and others.
2		// License & terms of use: http://www.unicode.org/copyright.html
3		/*
4		**********************************************************************
5		* Copyright (c) 2002-2006, International Business Machines
6		* Corporation and others. All Rights Reserved.
7		**********************************************************************
8		*/
9		#include "unicode/usetiter.h"
10		#include "unicode/uniset.h"
11		#include "unicode/unistr.h"
12		#include "uvector.h"
13
14		U_NAMESPACE_BEGIN
15
16		UOBJECT_DEFINE_RTTI_IMPLEMENTATION(UnicodeSetIterator)
17
18		/**
19		* Create an iterator
20		* @param set set to iterate over
21		*/
22	0	UnicodeSetIterator::UnicodeSetIterator(const UnicodeSet& uSet) {
23	0	cpString = NULL;
24	0	reset(uSet);
25	0	}
26
27		/**
28		* Create an iterator. Convenience for when the contents are to be set later.
29		*/
30	0	UnicodeSetIterator::UnicodeSetIterator() {
31	0	this->set = NULL;
32	0	cpString = NULL;
33	0	reset();
34	0	}
35
36	0	UnicodeSetIterator::~UnicodeSetIterator() {
37	0	delete cpString;
38	0	}
39
40		/**
41		* Returns the next element in the set.
42		* @return true if there was another element in the set.
43		* if so, if codepoint == IS_STRING, the value is a string in the string field
44		* else the value is a single code point in the codepoint field.
45		* <br>You are guaranteed that the codepoints are in sorted order, and the strings are in sorted order,
46		* and that all code points are returned before any strings are returned.
47		* <br>Note also that the codepointEnd is undefined after calling this method.
48		*/
49	0	UBool UnicodeSetIterator::next() {
50	0	if (nextElement <= endElement) {
51	0	codepoint = codepointEnd = nextElement++;
52	0	string = NULL;
53	0	return TRUE;
54	0	}
55	0	if (range < endRange) {
56	0	loadRange(++range);
57	0	codepoint = codepointEnd = nextElement++;
58	0	string = NULL;
59	0	return TRUE;
60	0	}
61
62	0	if (nextString >= stringCount) return FALSE;
63	0	codepoint = (UChar32)IS_STRING; // signal that value is actually a string
64	0	string = (const UnicodeString*) set->strings->elementAt(nextString++);
65	0	return TRUE;
66	0	}
67
68		/**
69		* @return true if there was another element in the set.
70		* if so, if codepoint == IS_STRING, the value is a string in the string field
71		* else the value is a range of codepoints in the <codepoint, codepointEnd> fields.
72		* <br>Note that the codepoints are in sorted order, and the strings are in sorted order,
73		* and that all code points are returned before any strings are returned.
74		* <br>You are guaranteed that the ranges are in sorted order, and the strings are in sorted order,
75		* and that all ranges are returned before any strings are returned.
76		* <br>You are also guaranteed that ranges are disjoint and non-contiguous.
77		* <br>Note also that the codepointEnd is undefined after calling this method.
78		*/
79	0	UBool UnicodeSetIterator::nextRange() {
80	0	string = NULL;
81	0	if (nextElement <= endElement) {
82	0	codepointEnd = endElement;
83	0	codepoint = nextElement;
84	0	nextElement = endElement+1;
85	0	return TRUE;
86	0	}
87	0	if (range < endRange) {
88	0	loadRange(++range);
89	0	codepointEnd = endElement;
90	0	codepoint = nextElement;
91	0	nextElement = endElement+1;
92	0	return TRUE;
93	0	}
94
95	0	if (nextString >= stringCount) return FALSE;
96	0	codepoint = (UChar32)IS_STRING; // signal that value is actually a string
97	0	string = (const UnicodeString*) set->strings->elementAt(nextString++);
98	0	return TRUE;
99	0	}
100
101		/**
102		*@param set the set to iterate over. This allows reuse of the iterator.
103		*/
104	0	void UnicodeSetIterator::reset(const UnicodeSet& uSet) {
105	0	this->set = &uSet;
106	0	reset();
107	0	}
108
109		/**
110		* Resets to the start, to allow the iteration to start over again.
111		*/
112	0	void UnicodeSetIterator::reset() {
113	0	if (set == NULL) {
114		// Set up indices to empty iteration
115	0	endRange = -1;
116	0	stringCount = 0;
117	0	} else {
118	0	endRange = set->getRangeCount() - 1;
119	0	stringCount = set->stringsSize();
120	0	}
121	0	range = 0;
122	0	endElement = -1;
123	0	nextElement = 0;
124	0	if (endRange >= 0) {
125	0	loadRange(range);
126	0	}
127	0	nextString = 0;
128	0	string = NULL;
129	0	}
130
131	0	void UnicodeSetIterator::loadRange(int32_t iRange) {
132	0	nextElement = set->getRangeStart(iRange);
133	0	endElement = set->getRangeEnd(iRange);
134	0	}
135
136
137	0	const UnicodeString& UnicodeSetIterator::getString() {
138	0	if (string==NULL && codepoint!=(UChar32)IS_STRING) {
139	0	if (cpString == NULL) {
140	0	cpString = new UnicodeString();
141	0	}
142	0	if (cpString != NULL) {
143	0	cpString->setTo((UChar32)codepoint);
144	0	}
145	0	string = cpString;
146	0	}
147	0	return *string;
148	0	}
149
150		U_NAMESPACE_END
151
152		//eof

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Created: 2025-01-28 06:38