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ICU 2.0 Data Structures

Here are the data structures with brief descriptions:

_UParseError	A UParseError struct is used to returned detailed information about parsing errors
_UReplaceableCallbacks	A set of function pointers that transliterators use to manipulate a UReplaceable
_UTransPosition	Position structure for utrans_transIncremental() incremental transliteration
BiDi	This class is deprecated and will be removed
BreakIterator	Implements methods for finding the location of boundaries in text
Calendar	Calendar is an abstract base class for converting between a UDate object and a set of integer fields such as YEAR, MONTH, DAY, HOUR, and so on
CharacterIterator	Abstract class that defines an API for iteration on text objects
ChoiceFormat
CollationElementIterator	Used as an iterator to walk through each character of an international string
CollationKey	Collation keys are generated by the Collator class
Collator	The Collator class performs locale-sensitive string comparison. You use this class to build searching and sorting routines for natural language text. Important: The ICU collation service has been reimplemented in order to achieve better performance and UCA compliance
CompoundTransliterator	A transliterator that is composed of two or more other transliterator objects linked together
DateFormat	DateFormat is an abstract class for a family of classes that convert dates and times from their internal representations to textual form and back again in a language-independent manner
DateFormatSymbols	DateFormatSymbols is a public class for encapsulating localizable date-time formatting data -- including timezone data
DecimalFormat	Concrete class for formatting decimal numbers, allowing a variety of parameters, and localization to Western, Arabic, or Indic numbers
DecimalFormatSymbols	This class represents the set of symbols needed by DecimalFormat to format numbers
DictionaryBasedBreakIterator	A subclass of RuleBasedBreakIterator that adds the ability to use a dictionary to further subdivide ranges of text beyond what is possible using just the state-table-based algorithm
FieldPosition	FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output
Format	Base class for all formats
Formattable	Formattable objects can be passed to the Format class or its subclasses for formatting
ForwardCharacterIterator	Abstract class that defines an API for forward-only iteration on text objects
GregorianCalendar	Concrete class which provides the standard calendar used by most of the world
HexToUnicodeTransliterator	A transliterator that converts from hexadecimal Unicode escape sequences to the characters they represent
ICULayoutEngine	This is a wrapper class designed to allow ICU clients to use LayoutEngine in a way that is consistent with the rest of ICU
MessageFormat	Provides means to produce concatenated messages in language-neutral way
Normalizer	C++ API: Unicode Normalization
NullTransliterator	A transliterator that leaves text unchanged
NumberFormat	Abstract base class for all number formats
ParsePosition	ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing
Replaceable	Replaceable is an abstract base class representing a string of characters that supports the replacement of a range of itself with a new string of characters
ResourceBundle	A class representing a collection of resource information pertaining to a given locale
RuleBasedBreakIterator
RuleBasedCollator	Simple implementation of Collator, using data-driven tables
RuleBasedNumberFormat	C++ API: RuleBasedNumberFormat
RuleBasedTransliterator	RuleBasedTransliterator is a transliterator that reads a set of rules in order to determine how to perform translations
SearchIterator	SearchIterator is an abstract base class that provides methods to search for a pattern within a text string
SimpleDateFormat	SimpleDateFormat is a concrete class for formatting and parsing dates in a language-independent manner
SimpleTimeZone	SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar
StringCharacterIterator	A concrete subclass of CharacterIterator that iterates over the characters (code units or code points) in a UnicodeString
StringSearch	StringSearch is a SearchIterator that provides language-sensitive text searching based on the comparison rules defined in a RuleBasedCollator object
TimeZone	TimeZone represents a time zone offset, and also figures out daylight savings
Transliterator	Transliterator is an abstract class that transliterates text from one format to another
Transliterator::Token	A context integer or pointer for a factory function, passed by value
UCharCharacterIterator	A concrete subclass of CharacterIterator that iterates over the characters (code units or code points) in a UChar array
UCharIterator	C API for code unit iteration
UConverterFromUnicodeArgs	The structure for the fromUnicode callback function parameter
UConverterToUnicodeArgs	The structure for the toUnicode callback function parameter
UFieldPosition	A struct representing a range of text containing a specific field @stable
Unicode	This class is deprecated and will be removed
UnicodeConverter	This class is deprecated and will be removed
UnicodeFilter	UnicodeFilter defines a protocol for selecting a subset of the full range (U+0000 to U+10FFFF) of Unicode characters
UnicodeFilterLogic	UnicodeFilterLogic provides logical operators on UnicodeFilter objects
UnicodeFunctor	UnicodeFunctor is an abstract base class for objects that perform match and/or replace operations on Unicode strings
UnicodeMatcher	UnicodeMatcher defines a protocol for objects that can match a range of characters in a Replaceable string
UnicodeReplacer	UnicodeReplacer defines a protocol for objects that replace a range of characters in a Replaceable string with output text
UnicodeSet	A mutable set of Unicode characters
UnicodeString	UnicodeString is a string class that stores Unicode characters directly and provides similar functionality as the Java String class
UnicodeToHexTransliterator	A transliterator that converts from Unicode characters to hexadecimal Unicode escape sequences

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