Gecko [ dallasfobana2023.variationbd.com ]

Name	Size	Permission
alphaindex.h	26.54 KB	-rw-r--r--
appendable.h	8.54 KB	-rw-r--r--
basictz.h	9.99 KB	-rw-r--r--
brkiter.h	27.83 KB	-rw-r--r--
bytestream.h	10.75 KB	-rw-r--r--
bytestrie.h	20.8 KB	-rw-r--r--
bytestriebuilder.h	7.48 KB	-rw-r--r--
calendar.h	107.68 KB	-rw-r--r--
caniter.h	7.53 KB	-rw-r--r--
casemap.h	25.42 KB	-rw-r--r--
char16ptr.h	7.22 KB	-rw-r--r--
chariter.h	23.79 KB	-rw-r--r--
choicfmt.h	23.99 KB	-rw-r--r--
coleitr.h	13.77 KB	-rw-r--r--
coll.h	56.28 KB	-rw-r--r--
compactdecimalformat.h	6.88 KB	-rw-r--r--
curramt.h	3.67 KB	-rw-r--r--
currpinf.h	7.3 KB	-rw-r--r--
currunit.h	4.02 KB	-rw-r--r--
datefmt.h	40.7 KB	-rw-r--r--
dbbi.h	1.19 KB	-rw-r--r--
dcfmtsym.h	20.93 KB	-rw-r--r--
decimfmt.h	87.46 KB	-rw-r--r--
displayoptions.h	7.08 KB	-rw-r--r--
docmain.h	7.46 KB	-rw-r--r--
dtfmtsym.h	38.21 KB	-rw-r--r--
dtintrv.h	3.84 KB	-rw-r--r--
dtitvfmt.h	48.87 KB	-rw-r--r--
dtitvinf.h	18.63 KB	-rw-r--r--
dtptngen.h	28.05 KB	-rw-r--r--
dtrule.h	8.66 KB	-rw-r--r--
edits.h	20.73 KB	-rw-r--r--
enumset.h	2.08 KB	-rw-r--r--
errorcode.h	4.84 KB	-rw-r--r--
fieldpos.h	8.69 KB	-rw-r--r--
filteredbrk.h	5.37 KB	-rw-r--r--
fmtable.h	24.36 KB	-rw-r--r--
format.h	12.5 KB	-rw-r--r--
formattednumber.h	6.28 KB	-rw-r--r--
formattedvalue.h	9.75 KB	-rw-r--r--
fpositer.h	3.03 KB	-rw-r--r--
gender.h	3.35 KB	-rw-r--r--
gregocal.h	30.3 KB	-rw-r--r--
icudataver.h	1.02 KB	-rw-r--r--
icuplug.h	12.1 KB	-rw-r--r--
idna.h	12.71 KB	-rw-r--r--
listformatter.h	8.59 KB	-rw-r--r--
localebuilder.h	11.08 KB	-rw-r--r--
localematcher.h	26.86 KB	-rw-r--r--
localpointer.h	19.55 KB	-rw-r--r--
locdspnm.h	7.12 KB	-rw-r--r--
locid.h	48.31 KB	-rw-r--r--
measfmt.h	11.41 KB	-rw-r--r--
measunit.h	108.23 KB	-rw-r--r--
measure.h	4.68 KB	-rw-r--r--
messageformat2.h	18.13 KB	-rw-r--r--
messageformat2_arguments.h	4.3 KB	-rw-r--r--
messageformat2_data_model.h	123 KB	-rw-r--r--
messageformat2_data_model_name...	784 B	-rw-r--r--
messageformat2_formattable.h	38.29 KB	-rw-r--r--
messageformat2_function_regist...	18 KB	-rw-r--r--
messagepattern.h	33.72 KB	-rw-r--r--
msgfmt.h	44.2 KB	-rw-r--r--
normalizer2.h	34.73 KB	-rw-r--r--
normlzr.h	30.79 KB	-rw-r--r--
nounit.h	2.24 KB	-rw-r--r--
numberformatter.h	90.74 KB	-rw-r--r--
numberrangeformatter.h	26.05 KB	-rw-r--r--
numfmt.h	50.16 KB	-rw-r--r--
numsys.h	7.22 KB	-rw-r--r--
parseerr.h	3.08 KB	-rw-r--r--
parsepos.h	5.56 KB	-rw-r--r--
platform.h	26.66 KB	-rw-r--r--
plurfmt.h	25.07 KB	-rw-r--r--
plurrule.h	20.63 KB	-rw-r--r--
ptypes.h	2.16 KB	-rw-r--r--
putil.h	6.32 KB	-rw-r--r--
rbbi.h	32.04 KB	-rw-r--r--
rbnf.h	50.53 KB	-rw-r--r--
rbtz.h	15.75 KB	-rw-r--r--
regex.h	84.45 KB	-rw-r--r--
region.h	9.2 KB	-rw-r--r--
reldatefmt.h	22.36 KB	-rw-r--r--
rep.h	9.38 KB	-rw-r--r--
resbund.h	18.03 KB	-rw-r--r--
schriter.h	6.09 KB	-rw-r--r--
scientificnumberformatter.h	6.44 KB	-rw-r--r--
search.h	22.21 KB	-rw-r--r--
selfmt.h	14.35 KB	-rw-r--r--
simpleformatter.h	12.58 KB	-rw-r--r--
simplenumberformatter.h	9.18 KB	-rw-r--r--
simpletz.h	45.62 KB	-rw-r--r--
smpdtfmt.h	57.06 KB	-rw-r--r--
sortkey.h	11.12 KB	-rw-r--r--
std_string.h	1.05 KB	-rw-r--r--
strenum.h	9.96 KB	-rw-r--r--
stringoptions.h	5.79 KB	-rw-r--r--
stringpiece.h	10.02 KB	-rw-r--r--
stringtriebuilder.h	15.5 KB	-rw-r--r--
stsearch.h	21.43 KB	-rw-r--r--
symtable.h	4.28 KB	-rw-r--r--
tblcoll.h	36.93 KB	-rw-r--r--
timezone.h	45.64 KB	-rw-r--r--
tmunit.h	3.4 KB	-rw-r--r--
tmutamt.h	4.9 KB	-rw-r--r--
tmutfmt.h	7.42 KB	-rw-r--r--
translit.h	65.8 KB	-rw-r--r--
tzfmt.h	42.95 KB	-rw-r--r--
tznames.h	16.85 KB	-rw-r--r--
tzrule.h	34.81 KB	-rw-r--r--
tztrans.h	6.11 KB	-rw-r--r--
ubidi.h	89.61 KB	-rw-r--r--
ubiditransform.h	12.71 KB	-rw-r--r--
ubrk.h	24.43 KB	-rw-r--r--
ucal.h	64.01 KB	-rw-r--r--
ucasemap.h	15.21 KB	-rw-r--r--
ucat.h	5.35 KB	-rw-r--r--
uchar.h	150.13 KB	-rw-r--r--
ucharstrie.h	22.56 KB	-rw-r--r--
ucharstriebuilder.h	7.48 KB	-rw-r--r--
uchriter.h	13.24 KB	-rw-r--r--
uclean.h	11.21 KB	-rw-r--r--
ucnv.h	83.34 KB	-rw-r--r--
ucnv_cb.h	6.58 KB	-rw-r--r--
ucnv_err.h	20.98 KB	-rw-r--r--
ucnvsel.h	6.24 KB	-rw-r--r--
ucol.h	62.7 KB	-rw-r--r--
ucoleitr.h	9.82 KB	-rw-r--r--
uconfig.h	12.56 KB	-rw-r--r--
ucpmap.h	5.54 KB	-rw-r--r--
ucptrie.h	22.51 KB	-rw-r--r--
ucsdet.h	14.69 KB	-rw-r--r--
ucurr.h	16.72 KB	-rw-r--r--
udat.h	62.36 KB	-rw-r--r--
udata.h	15.63 KB	-rw-r--r--
udateintervalformat.h	11.93 KB	-rw-r--r--
udatpg.h	30.13 KB	-rw-r--r--
udisplaycontext.h	5.94 KB	-rw-r--r--
udisplayoptions.h	8.86 KB	-rw-r--r--
uenum.h	7.79 KB	-rw-r--r--
ufieldpositer.h	4.41 KB	-rw-r--r--
uformattable.h	10.97 KB	-rw-r--r--
uformattednumber.h	8.09 KB	-rw-r--r--
uformattedvalue.h	12.25 KB	-rw-r--r--
ugender.h	2.06 KB	-rw-r--r--
uidna.h	33.43 KB	-rw-r--r--
uiter.h	22.75 KB	-rw-r--r--
uldnames.h	10.48 KB	-rw-r--r--
ulistformatter.h	10.78 KB	-rw-r--r--
uloc.h	55.38 KB	-rw-r--r--
ulocale.h	6.35 KB	-rw-r--r--
ulocbuilder.h	16.73 KB	-rw-r--r--
ulocdata.h	11.3 KB	-rw-r--r--
umachine.h	14.59 KB	-rw-r--r--
umisc.h	1.34 KB	-rw-r--r--
umsg.h	24.25 KB	-rw-r--r--
umutablecptrie.h	8.3 KB	-rw-r--r--
unifilt.h	4 KB	-rw-r--r--
unifunct.h	4.05 KB	-rw-r--r--
unimatch.h	6.1 KB	-rw-r--r--
unirepl.h	3.38 KB	-rw-r--r--
uniset.h	66.82 KB	-rw-r--r--
unistr.h	171.33 KB	-rw-r--r--
unorm.h	20.55 KB	-rw-r--r--
unorm2.h	25.71 KB	-rw-r--r--
unum.h	55.16 KB	-rw-r--r--
unumberformatter.h	19.68 KB	-rw-r--r--
unumberoptions.h	5.23 KB	-rw-r--r--
unumberrangeformatter.h	15.35 KB	-rw-r--r--
unumsys.h	7.26 KB	-rw-r--r--
uobject.h	10.66 KB	-rw-r--r--
upluralrules.h	8.79 KB	-rw-r--r--
uregex.h	71.99 KB	-rw-r--r--
uregion.h	9.81 KB	-rw-r--r--
ureldatefmt.h	16.98 KB	-rw-r--r--
urename.h	141.31 KB	-rw-r--r--
urep.h	5.38 KB	-rw-r--r--
ures.h	36.65 KB	-rw-r--r--
uscript.h	27.89 KB	-rw-r--r--
usearch.h	39.21 KB	-rw-r--r--
uset.h	45.56 KB	-rw-r--r--
usetiter.h	9.63 KB	-rw-r--r--
ushape.h	18 KB	-rw-r--r--
usimplenumberformatter.h	7.63 KB	-rw-r--r--
uspoof.h	80.32 KB	-rw-r--r--
usprep.h	8.19 KB	-rw-r--r--
ustdio.h	38.56 KB	-rw-r--r--
ustream.h	1.89 KB	-rw-r--r--
ustring.h	72.13 KB	-rw-r--r--
ustringtrie.h	3.15 KB	-rw-r--r--
utext.h	58.1 KB	-rw-r--r--
utf.h	7.87 KB	-rw-r--r--
utf16.h	23.35 KB	-rw-r--r--
utf32.h	763 B	-rw-r--r--
utf8.h	30.83 KB	-rw-r--r--
utf_old.h	45.8 KB	-rw-r--r--
utmscale.h	13.78 KB	-rw-r--r--
utrace.h	17.18 KB	-rw-r--r--
utrans.h	25.54 KB	-rw-r--r--
utypes.h	33.71 KB	-rw-r--r--
uvernum.h	6.33 KB	-rw-r--r--
uversion.h	5.99 KB	-rw-r--r--
vtzone.h	20.68 KB	-rw-r--r--

Code Editor : strenum.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*
*   Copyright (C) 2002-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
*******************************************************************************
*/

#ifndef STRENUM_H
#define STRENUM_H

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

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

/**
 * \file 
 * \brief C++ API: String Enumeration
 */
 
U_NAMESPACE_BEGIN

/**
 * Base class for 'pure' C++ implementations of uenum api. Adds a
 * method that returns the next UnicodeString since in C++ this can
 * be a common storage format for strings.
 *
 * The model is that the enumeration is over strings maintained by
 * a 'service.' At any point, the service might change, invalidating
 * the enumerator (though this is expected to be rare). The iterator
 * returns an error if this has occurred. Lack of the error is no
 * guarantee that the service didn't change immediately after the
 * call, so the returned string still might not be 'valid' on
 * subsequent use.
 *
 * Strings may take the form of const char*, const char16_t*, or const
 * UnicodeString*. The type you get is determine by the variant of
 * 'next' that you call. In general the StringEnumeration is
 * optimized for one of these types, but all StringEnumerations can
 * return all types. Returned strings are each terminated with a NUL.
 * Depending on the service data, they might also include embedded NUL
 * characters, so API is provided to optionally return the true
 * length, counting the embedded NULs but not counting the terminating
 * NUL.
 *
 * The pointers returned by next, unext, and snext become invalid
 * upon any subsequent call to the enumeration's destructor, next,
 * unext, snext, or reset.
 *
 * ICU 2.8 adds some default implementations and helper functions
 * for subclasses.
 *
 * @stable ICU 2.4 
 */
class U_COMMON_API StringEnumeration : public UObject { 
public:
 /**
 * Destructor.
 * @stable ICU 2.4
 */
 virtual ~StringEnumeration();

/**
     * Clone this object, an instance of a subclass of StringEnumeration.
     * Clones can be used concurrently in multiple threads.
     * If a subclass does not implement clone(), or if an error occurs,
     * then nullptr is returned.
     * The caller must delete the clone.
     *
     * @return a clone of this object
     *
     * @see getDynamicClassID
     * @stable ICU 2.8
     */
    virtual StringEnumeration *clone() const;

/**
 * Return the number of elements that the iterator traverses. If
 * the iterator is out of sync with its service, status is set to
 * U_ENUM_OUT_OF_SYNC_ERROR, and the return value is zero.
 *
 * The return value will not change except possibly as a result of
 * a subsequent call to reset, or if the iterator becomes out of sync.
 *
 * This is a convenience function. It can end up being very
 * expensive as all the items might have to be pre-fetched
 * (depending on the storage format of the data being
 * traversed).
 *
 * @param status the error code.
 * @return number of elements in the iterator.
 *
 * @stable ICU 2.4 */
 virtual int32_t count(UErrorCode& status) const = 0;

/**
 * Returns the next element as a NUL-terminated char*. If there
 * are no more elements, returns nullptr. If the resultLength pointer
 * is not nullptr, the length of the string (not counting the
 * terminating NUL) is returned at that address. If an error
 * status is returned, the value at resultLength is undefined.
 *
 * The returned pointer is owned by this iterator and must not be
 * deleted by the caller. The pointer is valid until the next call
 * to next, unext, snext, reset, or the enumerator's destructor.
 *
 * If the iterator is out of sync with its service, status is set
 * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.
 *
 * If the native service string is a char16_t* string, it is
 * converted to char* with the invariant converter. If the
 * conversion fails (because a character cannot be converted) then
 * status is set to U_INVARIANT_CONVERSION_ERROR and the return
 * value is undefined (though not nullptr).
 *
 * Starting with ICU 2.8, the default implementation calls snext()
 * and handles the conversion.
 * Either next() or snext() must be implemented differently by a subclass.
 *
 * @param status the error code.
 * @param resultLength a pointer to receive the length, can be nullptr.
 * @return a pointer to the string, or nullptr.
 *
 * @stable ICU 2.4 
 */
 virtual const char* next(int32_t *resultLength, UErrorCode& status);

/**
 * Returns the next element as a NUL-terminated char16_t*. If there
 * are no more elements, returns nullptr. If the resultLength pointer
 * is not nullptr, the length of the string (not counting the
 * terminating NUL) is returned at that address. If an error
 * status is returned, the value at resultLength is undefined.
 *
 * The returned pointer is owned by this iterator and must not be
 * deleted by the caller. The pointer is valid until the next call
 * to next, unext, snext, reset, or the enumerator's destructor.
 *
 * If the iterator is out of sync with its service, status is set
 * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.
 *
 * Starting with ICU 2.8, the default implementation calls snext()
 * and handles the conversion.
 *
 * @param status the error code.
 * @param resultLength a pointer to receive the length, can be nullptr.
 * @return a pointer to the string, or nullptr.
 *
 * @stable ICU 2.4 
 */
 virtual const char16_t* unext(int32_t *resultLength, UErrorCode& status);

/**
 * Returns the next element a UnicodeString*. If there are no
 * more elements, returns nullptr.
 *
 * The returned pointer is owned by this iterator and must not be
 * deleted by the caller. The pointer is valid until the next call
 * to next, unext, snext, reset, or the enumerator's destructor.
 *
 * If the iterator is out of sync with its service, status is set
 * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.
 *
 * Starting with ICU 2.8, the default implementation calls next()
 * and handles the conversion.
 * Either next() or snext() must be implemented differently by a subclass.
 *
 * @param status the error code.
 * @return a pointer to the string, or nullptr.
 *
 * @stable ICU 2.4 
 */
 virtual const UnicodeString* snext(UErrorCode& status);

/**
 * Resets the iterator. This re-establishes sync with the
 * service and rewinds the iterator to start at the first
 * element.
 *
 * Previous pointers returned by next, unext, or snext become
 * invalid, and the value returned by count might change.
 *
 * @param status the error code.
 *
 * @stable ICU 2.4 
 */
 virtual void reset(UErrorCode& status) = 0;

/**
     * Compares this enumeration to other to check if both are equal
     *
     * @param that The other string enumeration to compare this object to
     * @return true if the enumerations are equal. false if not.
     * @stable ICU 3.6 
     */
    virtual bool operator==(const StringEnumeration& that)const;
    /**
     * Compares this enumeration to other to check if both are not equal
     *
     * @param that The other string enumeration to compare this object to
     * @return true if the enumerations are equal. false if not.
     * @stable ICU 3.6 
     */
    virtual bool operator!=(const StringEnumeration& that)const;

protected:
    /**
     * UnicodeString field for use with default implementations and subclasses.
     * @stable ICU 2.8
     */
    UnicodeString unistr;
    /**
     * char * default buffer for use with default implementations and subclasses.
     * @stable ICU 2.8
     */
    char charsBuffer[32];
    /**
     * char * buffer for use with default implementations and subclasses.
     * Allocated in constructor and in ensureCharsCapacity().
     * @stable ICU 2.8
     */
    char *chars;
    /**
     * Capacity of chars, for use with default implementations and subclasses.
     * @stable ICU 2.8
     */
    int32_t charsCapacity;

/**
     * Default constructor for use with default implementations and subclasses.
     * @stable ICU 2.8
     */
    StringEnumeration();

/**
     * Ensures that chars is at least as large as the requested capacity.
     * For use with default implementations and subclasses.
     *
     * @param capacity Requested capacity.
     * @param status ICU in/out error code.
     * @stable ICU 2.8
     */
    void ensureCharsCapacity(int32_t capacity, UErrorCode &status);

/**
     * Converts s to Unicode and sets unistr to the result.
     * For use with default implementations and subclasses,
     * especially for implementations of snext() in terms of next().
     * This is provided with a helper function instead of a default implementation
     * of snext() to avoid potential infinite loops between next() and snext().
     *
     * For example:
     * \code
     * const UnicodeString* snext(UErrorCode& status) {
     *   int32_t resultLength=0;
     *   const char *s=next(&resultLength, status);
     *   return setChars(s, resultLength, status);
     * }
     * \endcode
     *
     * @param s String to be converted to Unicode.
     * @param length Length of the string.
     * @param status ICU in/out error code.
     * @return A pointer to unistr.
     * @stable ICU 2.8
     */
    UnicodeString *setChars(const char *s, int32_t length, UErrorCode &status);
};

U_NAMESPACE_END

#endif /* U_SHOW_CPLUSPLUS_API */

/* STRENUM_H */
#endif

${this.title}

Code Editor : strenum.h