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alphaindex.h	25.29 KB	-rw-r--r--
appendable.h	8.38 KB	-rw-r--r--
basictz.h	8.77 KB	-rw-r--r--
bms.h	8.68 KB	-rw-r--r--
bmsearch.h	7.33 KB	-rw-r--r--
brkiter.h	24.24 KB	-rw-r--r--
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bytestriebuilder.h	6.73 KB	-rw-r--r--
calendar.h	102.76 KB	-rw-r--r--
caniter.h	7.23 KB	-rw-r--r--
chariter.h	23.71 KB	-rw-r--r--
choicfmt.h	27.82 KB	-rw-r--r--
coleitr.h	12.69 KB	-rw-r--r--
coll.h	53.44 KB	-rw-r--r--
colldata.h	12.42 KB	-rw-r--r--
curramt.h	3.57 KB	-rw-r--r--
currpinf.h	6.93 KB	-rw-r--r--
currunit.h	2.99 KB	-rw-r--r--
datefmt.h	33.67 KB	-rw-r--r--
dbbi.h	966 B	-rw-r--r--
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decimfmt.h	97.38 KB	-rw-r--r--
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enumset.h	1.8 KB	-rw-r--r--
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fieldpos.h	8.51 KB	-rw-r--r--
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gender.h	3.02 KB	-rw-r--r--
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messagepattern.h	33.6 KB	-rw-r--r--
msgfmt.h	43.59 KB	-rw-r--r--
normalizer2.h	28.34 KB	-rw-r--r--
normlzr.h	29.26 KB	-rw-r--r--
numfmt.h	43.59 KB	-rw-r--r--
numsys.h	5.37 KB	-rw-r--r--
parseerr.h	2.97 KB	-rw-r--r--
parsepos.h	5.34 KB	-rw-r--r--
platform.h	24.23 KB	-rw-r--r--
plurfmt.h	24.58 KB	-rw-r--r--
plurrule.h	14.56 KB	-rw-r--r--
ptypes.h	3.36 KB	-rw-r--r--
putil.h	5.61 KB	-rw-r--r--
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rbtz.h	15.33 KB	-rw-r--r--
regex.h	83.1 KB	-rw-r--r--
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schriter.h	6.15 KB	-rw-r--r--
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selfmt.h	14.13 KB	-rw-r--r--
simpletz.h	45.1 KB	-rw-r--r--
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std_string.h	783 B	-rw-r--r--
strenum.h	9.92 KB	-rw-r--r--
stringpiece.h	6.38 KB	-rw-r--r--
stringtriebuilder.h	14.75 KB	-rw-r--r--
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symtable.h	4.1 KB	-rw-r--r--
tblcoll.h	34.23 KB	-rw-r--r--
timezone.h	37.28 KB	-rw-r--r--
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uchar.h	115.43 KB	-rw-r--r--
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ucharstriebuilder.h	6.83 KB	-rw-r--r--
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ucol.h	57.93 KB	-rw-r--r--
ucoleitr.h	12.25 KB	-rw-r--r--
uconfig.h	10.79 KB	-rw-r--r--
ucsdet.h	12.6 KB	-rw-r--r--
ucurr.h	12.96 KB	-rw-r--r--
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udata.h	14.81 KB	-rw-r--r--
udateintervalformat.h	6.5 KB	-rw-r--r--
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udisplaycontext.h	4.34 KB	-rw-r--r--
uenum.h	7.79 KB	-rw-r--r--
ugender.h	1.85 KB	-rw-r--r--
uidna.h	32.81 KB	-rw-r--r--
uiter.h	22.67 KB	-rw-r--r--
uldnames.h	10.5 KB	-rw-r--r--
uloc.h	44.07 KB	-rw-r--r--
ulocdata.h	10.37 KB	-rw-r--r--
umachine.h	10.23 KB	-rw-r--r--
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unifunct.h	3.87 KB	-rw-r--r--
unimatch.h	5.93 KB	-rw-r--r--
unirepl.h	3.21 KB	-rw-r--r--
uniset.h	63.07 KB	-rw-r--r--
unistr.h	164.33 KB	-rw-r--r--
unorm.h	22.89 KB	-rw-r--r--
unorm2.h	21.91 KB	-rw-r--r--
unum.h	39.21 KB	-rw-r--r--
uobject.h	12.21 KB	-rw-r--r--
upluralrules.h	4.47 KB	-rw-r--r--
uregex.h	71.47 KB	-rw-r--r--
urename.h	120.88 KB	-rw-r--r--
urep.h	5.27 KB	-rw-r--r--
ures.h	35.92 KB	-rw-r--r--
uscript.h	20.46 KB	-rw-r--r--
usearch.h	36.09 KB	-rw-r--r--
uset.h	39.45 KB	-rw-r--r--
usetiter.h	9.38 KB	-rw-r--r--
ushape.h	17.89 KB	-rw-r--r--
uspoof.h	38.91 KB	-rw-r--r--
usprep.h	8.02 KB	-rw-r--r--
ustdio.h	37.05 KB	-rw-r--r--
ustream.h	1.6 KB	-rw-r--r--
ustring.h	73.01 KB	-rw-r--r--
ustringtrie.h	3.04 KB	-rw-r--r--
utext.h	57.97 KB	-rw-r--r--
utf.h	7.64 KB	-rw-r--r--
utf16.h	18.24 KB	-rw-r--r--
utf32.h	653 B	-rw-r--r--
utf8.h	23.02 KB	-rw-r--r--
utf_old.h	42.5 KB	-rw-r--r--
utmscale.h	13.37 KB	-rw-r--r--
utrace.h	13.09 KB	-rw-r--r--
utrans.h	23.08 KB	-rw-r--r--
utypes.h	30.72 KB	-rw-r--r--
uvernum.h	5.53 KB	-rw-r--r--
uversion.h	6.29 KB	-rw-r--r--
vtzone.h	20.09 KB	-rw-r--r--

Code Editor : usetiter.h

/*
**********************************************************************
* Copyright (c) 2002-2008, International Business Machines
* Corporation and others.  All Rights Reserved.
**********************************************************************
*/
#ifndef USETITER_H
#define USETITER_H

#include "unicode/utypes.h"
#include "unicode/uobject.h"
#include "unicode/unistr.h"

/**
 * \file 
 * \brief C++ API: UnicodeSetIterator iterates over the contents of a UnicodeSet.
 */

U_NAMESPACE_BEGIN

class UnicodeSet;
class UnicodeString;

/**
 *
 * UnicodeSetIterator iterates over the contents of a UnicodeSet. It
 * iterates over either code points or code point ranges. After all
 * code points or ranges have been returned, it returns the
 * multicharacter strings of the UnicodeSet, if any.
 *
 * This class is not intended to be subclassed. Consider any fields
 * or methods declared as "protected" to be private. The use of
 * protected in this class is an artifact of history.
 *
 * To iterate over code points and strings, use a loop like this:
 * <pre>
 * UnicodeSetIterator it(set);
 * while (it.next()) {
 * processItem(it.getString());
 * }
 * </pre>
 * Each item in the set is accessed as a string. Set elements
 * consisting of single code points are returned as strings containing
 * just the one code point.
 *
 * To iterate over code point ranges, instead of individual code points,
 * use a loop like this:
 * <pre>
 * UnicodeSetIterator it(set);
 * while (it.nextRange()) {
 * if (it.isString()) {
 * processString(it.getString());
 * } else {
 * processCodepointRange(it.getCodepoint(), it.getCodepointEnd());
 * }
 * }
 * </pre>
 * @author M. Davis
 * @stable ICU 2.4
 */
class U_COMMON_API UnicodeSetIterator : public UObject {

protected:

/**
 * Value of <tt>codepoint</tt> if the iterator points to a string.
 * If <tt>codepoint == IS_STRING</tt>, then examine
 * <tt>string</tt> for the current iteration result.
 * @stable ICU 2.4
 */
 enum { IS_STRING = -1 };

/**
 * Current code point, or the special value <tt>IS_STRING</tt>, if
 * the iterator points to a string.
 * @stable ICU 2.4
 */
 UChar32 codepoint;

/**
 * When iterating over ranges using <tt>nextRange()</tt>,
 * <tt>codepointEnd</tt> contains the inclusive end of the
 * iteration range, if <tt>codepoint != IS_STRING</tt>. If
 * iterating over code points using <tt>next()</tt>, or if
 * <tt>codepoint == IS_STRING</tt>, then the value of
 * <tt>codepointEnd</tt> is undefined.
 * @stable ICU 2.4
 */
 UChar32 codepointEnd;

/**
 * If <tt>codepoint == IS_STRING</tt>, then <tt>string</tt> points
 * to the current string. If <tt>codepoint != IS_STRING</tt>, the
 * value of <tt>string</tt> is undefined.
 * @stable ICU 2.4
 */
 const UnicodeString* string;

public:

/**
 * Create an iterator over the given set. The iterator is valid
 * only so long as <tt>set</tt> is valid.
 * @param set set to iterate over
 * @stable ICU 2.4
 */
 UnicodeSetIterator(const UnicodeSet& set);

/**
 * Create an iterator over nothing. <tt>next()</tt> and
 * <tt>nextRange()</tt> return false. This is a convenience
 * constructor allowing the target to be set later.
 * @stable ICU 2.4
 */
 UnicodeSetIterator();

/**
     * Destructor.
     * @stable ICU 2.4
     */
    virtual ~UnicodeSetIterator();

/**
 * Returns true if the current element is a string. If so, the
 * caller can retrieve it with <tt>getString()</tt>. If this
 * method returns false, the current element is a code point or
 * code point range, depending on whether <tt>next()</tt> or
 * <tt>nextRange()</tt> was called.
 * Elements of types string and codepoint can both be retrieved
 * with the function <tt>getString()</tt>.
 * Elements of type codepoint can also be retrieved with
 * <tt>getCodepoint()</tt>.
 * For ranges, <tt>getCodepoint()</tt> returns the starting codepoint
 * of the range, and <tt>getCodepointEnd()</tt> returns the end
 * of the range.
 * @stable ICU 2.4
 */
 inline UBool isString() const;

/**
 * Returns the current code point, if <tt>isString()</tt> returned
 * false. Otherwise returns an undefined result.
 * @stable ICU 2.4
 */
 inline UChar32 getCodepoint() const;

/**
 * Returns the end of the current code point range, if
 * <tt>isString()</tt> returned false and <tt>nextRange()</tt> was
 * called. Otherwise returns an undefined result.
 * @stable ICU 2.4
 */
 inline UChar32 getCodepointEnd() const;

/**
 * Returns the current string, if <tt>isString()</tt> returned
 * true. If the current iteration item is a code point, a UnicodeString
 * containing that single code point is returned.
 *
 * Ownership of the returned string remains with the iterator.
 * The string is guaranteed to remain valid only until the iterator is
 * advanced to the next item, or until the iterator is deleted.
 * 
 * @stable ICU 2.4
 */
 const UnicodeString& getString();

/**
 * Advances the iteration position to the next element in the set, 
 * which can be either a single code point or a string. 
 * If there are no more elements in the set, return false.
 *
 * 
 * If <tt>isString() == TRUE</tt>, the value is a
 * string, otherwise the value is a
 * single code point. Elements of either type can be retrieved
 * with the function <tt>getString()</tt>, while elements of
 * consisting of a single code point can be retrieved with
 * <tt>getCodepoint()</tt>
 *
 * The order of iteration is all code points in sorted order,
 * followed by all strings sorted order. Do not mix
 * calls to <tt>next()</tt> and <tt>nextRange()</tt> without
 * calling <tt>reset()</tt> between them. The results of doing so
 * are undefined.
 *
 * @return true if there was another element in the set.
 * @stable ICU 2.4
 */
 UBool next();

/**
 * Returns the next element in the set, either a code point range
 * or a string. If there are no more elements in the set, return
 * false. If <tt>isString() == TRUE</tt>, the value is a
 * string and can be accessed with <tt>getString()</tt>. Otherwise the value is a
 * range of one or more code points from <tt>getCodepoint()</tt> to
 * <tt>getCodepointeEnd()</tt> inclusive.
 *
 * The order of iteration is all code points ranges in sorted
 * order, followed by all strings sorted order. Ranges are
 * disjoint and non-contiguous. The value returned from <tt>getString()</tt>
 * is undefined unless <tt>isString() == TRUE</tt>. Do not mix calls to
 * <tt>next()</tt> and <tt>nextRange()</tt> without calling
 * <tt>reset()</tt> between them. The results of doing so are
 * undefined.
 *
 * @return true if there was another element in the set.
 * @stable ICU 2.4
 */
 UBool nextRange();

/**
 * Sets this iterator to visit the elements of the given set and
 * resets it to the start of that set. The iterator is valid only
 * so long as <tt>set</tt> is valid.
 * @param set the set to iterate over.
 * @stable ICU 2.4
 */
 void reset(const UnicodeSet& set);

/**
     * Resets this iterator to the start of the set.
     * @stable ICU 2.4
     */
    void reset();

/**
     * ICU "poor man's RTTI", returns a UClassID for this class.
     *
     * @stable ICU 2.4
     */
    static UClassID U_EXPORT2 getStaticClassID();

/**
     * ICU "poor man's RTTI", returns a UClassID for the actual class.
     *
     * @stable ICU 2.4
     */
    virtual UClassID getDynamicClassID() const;

// ======================= PRIVATES ===========================

protected:

// endElement and nextElements are really UChar32's, but we keep
    // them as signed int32_t's so we can do comparisons with
    // endElement set to -1.  Leave them as int32_t's.
    /** The set
     * @stable ICU 2.4
     */
    const UnicodeSet* set;
    /** End range
     * @stable ICU 2.4
     */
    int32_t endRange;
    /** Range
     * @stable ICU 2.4
     */
    int32_t range;
    /** End element
     * @stable ICU 2.4
     */
    int32_t endElement;
    /** Next element
     * @stable ICU 2.4
     */
    int32_t nextElement;
    //UBool abbreviated;
    /** Next string
     * @stable ICU 2.4
     */
    int32_t nextString;
    /** String count
     * @stable ICU 2.4
     */
    int32_t stringCount;

/**
     *  Points to the string to use when the caller asks for a
     *  string and the current iteration item is a code point, not a string.
     *  @internal
     */
    UnicodeString *cpString;

/** Copy constructor. Disallowed.
     * @stable ICU 2.4
     */
    UnicodeSetIterator(const UnicodeSetIterator&); // disallow

/** Assignment operator. Disallowed.
     * @stable ICU 2.4
     */
    UnicodeSetIterator& operator=(const UnicodeSetIterator&); // disallow

/** Load range
     * @stable ICU 2.4
     */
    virtual void loadRange(int32_t range);

};

inline UBool UnicodeSetIterator::isString() const {
    return codepoint == (UChar32)IS_STRING;
}

inline UChar32 UnicodeSetIterator::getCodepoint() const {
    return codepoint;
}

inline UChar32 UnicodeSetIterator::getCodepointEnd() const {
    return codepointEnd;
}

U_NAMESPACE_END

#endif

${this.title}

Code Editor : usetiter.h