--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/common/unicode/unistr.h Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,4149 @@
+/*
+**********************************************************************
+* Copyright (C) 1998-2005, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+*
+* File unistr.h
+*
+* Modification History:
+*
+* Date Name Description
+* 09/25/98 stephen Creation.
+* 11/11/98 stephen Changed per 11/9 code review.
+* 04/20/99 stephen Overhauled per 4/16 code review.
+* 11/18/99 aliu Made to inherit from Replaceable. Added method
+* handleReplaceBetween(); other methods unchanged.
+* 06/25/01 grhoten Remove dependency on iostream.
+******************************************************************************
+*/
+
+#ifndef UNISTR_H
+#define UNISTR_H
+
+/**
+ * \file
+ * \brief C++ API: Unicode String
+ */
+
+#include "unicode/rep.h"
+
+struct UConverter; // unicode/ucnv.h
+class StringThreadTest;
+
+#ifndef U_COMPARE_CODE_POINT_ORDER
+/* see also ustring.h and unorm.h */
+/**
+ * Option bit for u_strCaseCompare, u_strcasecmp, unorm_compare, etc:
+ * Compare strings in code point order instead of code unit order.
+ * @stable ICU 2.2
+ */
+#define U_COMPARE_CODE_POINT_ORDER 0x8000
+#endif
+
+#ifndef USTRING_H
+/* see ustring.h */
+U_STABLE int32_t U_EXPORT2
+u_strlen(const UChar *s);
+#endif
+
+U_NAMESPACE_BEGIN
+
+class Locale; // unicode/locid.h
+class StringCharacterIterator;
+class BreakIterator; // unicode/brkiter.h
+
+/* The <iostream> include has been moved to unicode/ustream.h */
+
+/**
+ * Constant to be used in the UnicodeString(char *, int32_t, EInvariant) constructor
+ * which constructs a Unicode string from an invariant-character char * string.
+ * About invariant characters see utypes.h.
+ * This constructor has no runtime dependency on conversion code and is
+ * therefore recommended over ones taking a charset name string
+ * (where the empty string "" indicates invariant-character conversion).
+ *
+ * @draft ICU 3.2
+ */
+#define US_INV UnicodeString::kInvariant
+
+/**
+ * Unicode String literals in C++.
+ * Dependent on the platform properties, different UnicodeString
+ * constructors should be used to create a UnicodeString object from
+ * a string literal.
+ * The macros are defined for maximum performance.
+ * They work only for strings that contain "invariant characters", i.e.,
+ * only latin letters, digits, and some punctuation.
+ * See utypes.h for details.
+ *
+ * The string parameter must be a C string literal.
+ * The length of the string, not including the terminating
+ * <code>NUL</code>, must be specified as a constant.
+ * The U_STRING_DECL macro should be invoked exactly once for one
+ * such string variable before it is used.
+ * @stable ICU 2.0
+ */
+#if U_SIZEOF_WCHAR_T==U_SIZEOF_UCHAR && (U_CHARSET_FAMILY==U_ASCII_FAMILY || (U_SIZEOF_UCHAR == 2 && defined(U_WCHAR_IS_UTF16)))
+# define UNICODE_STRING(cs, _length) UnicodeString(TRUE, (const UChar *)L ## cs, _length)
+#elif U_SIZEOF_UCHAR==1 && U_CHARSET_FAMILY==U_ASCII_FAMILY
+# define UNICODE_STRING(cs, _length) UnicodeString(TRUE, (const UChar *)cs, _length)
+#else
+# define UNICODE_STRING(cs, _length) UnicodeString(cs, _length, US_INV)
+#endif
+
+/**
+ * Unicode String literals in C++.
+ * Dependent on the platform properties, different UnicodeString
+ * constructors should be used to create a UnicodeString object from
+ * a string literal.
+ * The macros are defined for improved performance.
+ * They work only for strings that contain "invariant characters", i.e.,
+ * only latin letters, digits, and some punctuation.
+ * See utypes.h for details.
+ *
+ * The string parameter must be a C string literal.
+ * @stable ICU 2.0
+ */
+#if U_SIZEOF_WCHAR_T==U_SIZEOF_UCHAR && (U_CHARSET_FAMILY==U_ASCII_FAMILY || (U_SIZEOF_UCHAR == 2 && defined(U_WCHAR_IS_UTF16)))
+# define UNICODE_STRING_SIMPLE(cs) UnicodeString(TRUE, (const UChar *)L ## cs, -1)
+#elif U_SIZEOF_UCHAR==1 && U_CHARSET_FAMILY==U_ASCII_FAMILY
+# define UNICODE_STRING_SIMPLE(cs) UnicodeString(TRUE, (const UChar *)cs, -1)
+#else
+# define UNICODE_STRING_SIMPLE(cs) UnicodeString(cs, -1, US_INV)
+#endif
+
+/**
+ * UnicodeString is a string class that stores Unicode characters directly and provides
+ * similar functionality as the Java String and StringBuffer classes.
+ * It is a concrete implementation of the abstract class Replaceable (for transliteration).
+ *
+ * The UnicodeString class is not suitable for subclassing.
+ *
+ * <p>For an overview of Unicode strings in C and C++ see the
+ * <a href="http://icu.sourceforge.net/userguide/strings.html">User Guide Strings chapter</a>.</p>
+ *
+ * <p>In ICU, a Unicode string consists of 16-bit Unicode <em>code units</em>.
+ * A Unicode character may be stored with either one code unit
+ * (the most common case) or with a matched pair of special code units
+ * ("surrogates"). The data type for code units is UChar.
+ * For single-character handling, a Unicode character code <em>point</em> is a value
+ * in the range 0..0x10ffff. ICU uses the UChar32 type for code points.</p>
+ *
+ * <p>Indexes and offsets into and lengths of strings always count code units, not code points.
+ * This is the same as with multi-byte char* strings in traditional string handling.
+ * Operations on partial strings typically do not test for code point boundaries.
+ * If necessary, the user needs to take care of such boundaries by testing for the code unit
+ * values or by using functions like
+ * UnicodeString::getChar32Start() and UnicodeString::getChar32Limit()
+ * (or, in C, the equivalent macros U16_SET_CP_START() and U16_SET_CP_LIMIT(), see utf.h).</p>
+ *
+ * UnicodeString methods are more lenient with regard to input parameter values
+ * than other ICU APIs. In particular:
+ * - If indexes are out of bounds for a UnicodeString object
+ * (<0 or >length()) then they are "pinned" to the nearest boundary.
+ * - If primitive string pointer values (e.g., const UChar * or char *)
+ * for input strings are NULL, then those input string parameters are treated
+ * as if they pointed to an empty string.
+ * However, this is <em>not</em> the case for char * parameters for charset names
+ * or other IDs.
+ * - Most UnicodeString methods do not take a UErrorCode parameter because
+ * there are usually very few opportunities for failure other than a shortage
+ * of memory, error codes in low-level C++ string methods would be inconvenient,
+ * and the error code as the last parameter (ICU convention) would prevent
+ * the use of default parameter values.
+ * Instead, such methods set the UnicodeString into a "bogus" state
+ * (see isBogus()) if an error occurs.
+ *
+ * In string comparisons, two UnicodeString objects that are both "bogus"
+ * compare equal (to be transitive and prevent endless loops in sorting),
+ * and a "bogus" string compares less than any non-"bogus" one.
+ *
+ * Const UnicodeString methods are thread-safe. Multiple threads can use
+ * const methods on the same UnicodeString object simultaneously,
+ * but non-const methods must not be called concurrently (in multiple threads)
+ * with any other (const or non-const) methods.
+ *
+ * Similarly, const UnicodeString & parameters are thread-safe.
+ * One object may be passed in as such a parameter concurrently in multiple threads.
+ * This includes the const UnicodeString & parameters for
+ * copy construction, assignment, and cloning.
+ *
+ * <p>UnicodeString uses several storage methods.
+ * String contents can be stored inside the UnicodeString object itself,
+ * in an allocated and shared buffer, or in an outside buffer that is "aliased".
+ * Most of this is done transparently, but careful aliasing in particular provides
+ * significant performance improvements.
+ * Also, the internal buffer is accessible via special functions.
+ * For details see the
+ * <a href="http://icu.sourceforge.net/userguide/strings.html">User Guide Strings chapter</a>.</p>
+ *
+ * @see utf.h
+ * @see CharacterIterator
+ * @stable ICU 2.0
+ */
+class U_COMMON_API UnicodeString : public Replaceable
+{
+public:
+
+ /**
+ * Constant to be used in the UnicodeString(char *, int32_t, EInvariant) constructor
+ * which constructs a Unicode string from an invariant-character char * string.
+ * Use the macro US_INV instead of the full qualification for this value.
+ *
+ * @see US_INV
+ * @draft ICU 3.2
+ */
+ enum EInvariant {
+ /**
+ * @see EInvariant
+ * @draft ICU 3.2
+ */
+ kInvariant
+ };
+
+ //========================================
+ // Read-only operations
+ //========================================
+
+ /* Comparison - bitwise only - for international comparison use collation */
+
+ /**
+ * Equality operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return TRUE if <TT>text</TT> contains the same characters as this one,
+ * FALSE otherwise.
+ * @stable ICU 2.0
+ */
+ inline UBool operator== (const UnicodeString& text) const;
+
+ /**
+ * Inequality operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return FALSE if <TT>text</TT> contains the same characters as this one,
+ * TRUE otherwise.
+ * @stable ICU 2.0
+ */
+ inline UBool operator!= (const UnicodeString& text) const;
+
+ /**
+ * Greater than operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return TRUE if the characters in this are bitwise
+ * greater than the characters in <code>text</code>, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool operator> (const UnicodeString& text) const;
+
+ /**
+ * Less than operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return TRUE if the characters in this are bitwise
+ * less than the characters in <code>text</code>, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool operator< (const UnicodeString& text) const;
+
+ /**
+ * Greater than or equal operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return TRUE if the characters in this are bitwise
+ * greater than or equal to the characters in <code>text</code>, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool operator>= (const UnicodeString& text) const;
+
+ /**
+ * Less than or equal operator. Performs only bitwise comparison.
+ * @param text The UnicodeString to compare to this one.
+ * @return TRUE if the characters in this are bitwise
+ * less than or equal to the characters in <code>text</code>, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool operator<= (const UnicodeString& text) const;
+
+ /**
+ * Compare the characters bitwise in this UnicodeString to
+ * the characters in <code>text</code>.
+ * @param text The UnicodeString to compare to this one.
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>text</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>text</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>text</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(const UnicodeString& text) const;
+
+ /**
+ * Compare the characters bitwise in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+ * in <TT>text</TT>
+ * @param start the offset at which the compare operation begins
+ * @param length the number of characters of text to compare.
+ * @param text the other text to be compared against this string.
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>text</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>text</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>text</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(int32_t start,
+ int32_t length,
+ const UnicodeString& text) const;
+
+ /**
+ * Compare the characters bitwise in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param start the offset at which the compare operation begins
+ * @param length the number of characters in this to compare.
+ * @param srcText the text to be compared
+ * @param srcStart the offset into <TT>srcText</TT> to start comparison
+ * @param srcLength the number of characters in <TT>src</TT> to compare
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>srcText</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>srcText</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>srcText</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Compare the characters bitwise in this UnicodeString with the first
+ * <TT>srcLength</TT> characters in <TT>srcChars</TT>.
+ * @param srcChars The characters to compare to this UnicodeString.
+ * @param srcLength the number of characters in <TT>srcChars</TT> to compare
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>srcChars</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>srcChars</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(const UChar *srcChars,
+ int32_t srcLength) const;
+
+ /**
+ * Compare the characters bitwise in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the first
+ * <TT>length</TT> characters in <TT>srcChars</TT>
+ * @param start the offset at which the compare operation begins
+ * @param length the number of characters to compare.
+ * @param srcChars the characters to be compared
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>srcChars</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>srcChars</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(int32_t start,
+ int32_t length,
+ const UChar *srcChars) const;
+
+ /**
+ * Compare the characters bitwise in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+ * in <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param start the offset at which the compare operation begins
+ * @param length the number of characters in this to compare
+ * @param srcChars the characters to be compared
+ * @param srcStart the offset into <TT>srcChars</TT> to start comparison
+ * @param srcLength the number of characters in <TT>srcChars</TT> to compare
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>srcChars</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>srcChars</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compare(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Compare the characters bitwise in the range
+ * [<TT>start</TT>, <TT>limit</TT>) with the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcLimit</TT>).
+ * @param start the offset at which the compare operation begins
+ * @param limit the offset immediately following the compare operation
+ * @param srcText the text to be compared
+ * @param srcStart the offset into <TT>srcText</TT> to start comparison
+ * @param srcLimit the offset into <TT>srcText</TT> to limit comparison
+ * @return The result of bitwise character comparison: 0 if this
+ * contains the same characters as <code>srcText</code>, -1 if the characters in
+ * this are bitwise less than the characters in <code>srcText</code>, +1 if the
+ * characters in this are bitwise greater than the characters
+ * in <code>srcText</code>.
+ * @stable ICU 2.0
+ */
+ inline int8_t compareBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param text Another string to compare this one to.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(const UnicodeString& text) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLength The number of code units from that string to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param srcChars A pointer to another string to compare this one to.
+ * @param srcLength The number of code units from that string to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(const UChar *srcChars,
+ int32_t srcLength) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcChars A pointer to another string to compare this one to.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(int32_t start,
+ int32_t length,
+ const UChar *srcChars) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcChars A pointer to another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLength The number of code units from that string to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrder(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from how compare(), operator==, startsWith() etc. work
+ * if supplementary characters are present:
+ *
+ * In UTF-16, supplementary characters (with code points U+10000 and above) are
+ * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+ * which means that they compare as less than some other BMP characters like U+feff.
+ * This function compares Unicode strings in code point order.
+ * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param limit The offset after the last code unit from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLimit The offset after the last code unit from that string to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * this string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+ inline int8_t compareCodePointOrderBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(text.foldCase(options)).
+ *
+ * @param text Another string to compare this one to.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(const UnicodeString& text, uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(srcText.foldCase(options)).
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(srcText.foldCase(options)).
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLength The number of code units from that string to compare.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+ *
+ * @param srcChars A pointer to another string to compare this one to.
+ * @param srcLength The number of code units from that string to compare.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(const UChar *srcChars,
+ int32_t srcLength,
+ uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcChars A pointer to another string to compare this one to.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param length The number of code units from this string to compare.
+ * @param srcChars A pointer to another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLength The number of code units from that string to compare.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompare(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const;
+
+ /**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to this->foldCase(options).compareBetween(text.foldCase(options)).
+ *
+ * @param start The start offset in this string at which the compare operation begins.
+ * @param limit The offset after the last code unit from this string to compare.
+ * @param srcText Another string to compare this one to.
+ * @param srcStart The start offset in that string at which the compare operation begins.
+ * @param srcLimit The offset after the last code unit from that string to compare.
+ * @param options A bit set of options:
+ * - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ * Comparison in code unit order with default case folding.
+ *
+ * - U_COMPARE_CODE_POINT_ORDER
+ * Set to choose code point order instead of code unit order
+ * (see u_strCompare for details).
+ *
+ * - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+ inline int8_t caseCompareBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit,
+ uint32_t options) const;
+
+ /**
+ * Determine if this starts with the characters in <TT>text</TT>
+ * @param text The text to match.
+ * @return TRUE if this starts with the characters in <TT>text</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool startsWith(const UnicodeString& text) const;
+
+ /**
+ * Determine if this starts with the characters in <TT>srcText</TT>
+ * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param srcText The text to match.
+ * @param srcStart the offset into <TT>srcText</TT> to start matching
+ * @param srcLength the number of characters in <TT>srcText</TT> to match
+ * @return TRUE if this starts with the characters in <TT>text</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool startsWith(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Determine if this starts with the characters in <TT>srcChars</TT>
+ * @param srcChars The characters to match.
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * @return TRUE if this starts with the characters in <TT>srcChars</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool startsWith(const UChar *srcChars,
+ int32_t srcLength) const;
+
+ /**
+ * Determine if this ends with the characters in <TT>srcChars</TT>
+ * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param srcChars The characters to match.
+ * @param srcStart the offset into <TT>srcText</TT> to start matching
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @return TRUE if this ends with the characters in <TT>srcChars</TT>, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool startsWith(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Determine if this ends with the characters in <TT>text</TT>
+ * @param text The text to match.
+ * @return TRUE if this ends with the characters in <TT>text</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool endsWith(const UnicodeString& text) const;
+
+ /**
+ * Determine if this ends with the characters in <TT>srcText</TT>
+ * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param srcText The text to match.
+ * @param srcStart the offset into <TT>srcText</TT> to start matching
+ * @param srcLength the number of characters in <TT>srcText</TT> to match
+ * @return TRUE if this ends with the characters in <TT>text</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool endsWith(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ /**
+ * Determine if this ends with the characters in <TT>srcChars</TT>
+ * @param srcChars The characters to match.
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * @return TRUE if this ends with the characters in <TT>srcChars</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool endsWith(const UChar *srcChars,
+ int32_t srcLength) const;
+
+ /**
+ * Determine if this ends with the characters in <TT>srcChars</TT>
+ * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * @param srcChars The characters to match.
+ * @param srcStart the offset into <TT>srcText</TT> to start matching
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @return TRUE if this ends with the characters in <TT>srcChars</TT>,
+ * FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool endsWith(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+
+ /* Searching - bitwise only */
+
+ /**
+ * Locate in this the first occurrence of the characters in <TT>text</TT>,
+ * using bitwise comparison.
+ * @param text The text to search for.
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UnicodeString& text) const;
+
+ /**
+ * Locate in this the first occurrence of the characters in <TT>text</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param text The text to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UnicodeString& text,
+ int32_t start) const;
+
+ /**
+ * Locate in this the first occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>text</TT>, using bitwise comparison.
+ * @param text The text to search for.
+ * @param start The offset at which searching will start.
+ * @param length The number of characters to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UnicodeString& text,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the first occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+ * using bitwise comparison.
+ * @param srcText The text to search for.
+ * @param srcStart the offset into <TT>srcText</TT> at which
+ * to start matching
+ * @param srcLength the number of characters in <TT>srcText</TT> to match
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the first occurrence of the characters in
+ * <TT>srcChars</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @param start the offset into this at which to start matching
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start) const;
+
+ /**
+ * Locate in this the first occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcChars</TT>, using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * @param start The offset at which searching will start.
+ * @param length The number of characters to search
+ * @return The offset into this of the start of <TT>srcChars</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the first occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+ * using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcStart the offset into <TT>srcChars</TT> at which
+ * to start matching
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ int32_t indexOf(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the first occurrence of the BMP code point <code>c</code>,
+ * using bitwise comparison.
+ * @param c The code unit to search for.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar c) const;
+
+ /**
+ * Locate in this the first occurrence of the code point <TT>c</TT>,
+ * using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar32 c) const;
+
+ /**
+ * Locate in this the first occurrence of the BMP code point <code>c</code>,
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param c The code unit to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar c,
+ int32_t start) const;
+
+ /**
+ * Locate in this the first occurrence of the code point <TT>c</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar32 c,
+ int32_t start) const;
+
+ /**
+ * Locate in this the first occurrence of the BMP code point <code>c</code>
+ * in the range [<TT>start</TT>, <TT>start + length</TT>),
+ * using bitwise comparison.
+ * @param c The code unit to search for.
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar c,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the first occurrence of the code point <TT>c</TT>
+ * in the range [<TT>start</TT>, <TT>start + length</TT>),
+ * using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t indexOf(UChar32 c,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence of the characters in <TT>text</TT>,
+ * using bitwise comparison.
+ * @param text The text to search for.
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UnicodeString& text) const;
+
+ /**
+ * Locate in this the last occurrence of the characters in <TT>text</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param text The text to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UnicodeString& text,
+ int32_t start) const;
+
+ /**
+ * Locate in this the last occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>text</TT>, using bitwise comparison.
+ * @param text The text to search for.
+ * @param start The offset at which searching will start.
+ * @param length The number of characters to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UnicodeString& text,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+ * using bitwise comparison.
+ * @param srcText The text to search for.
+ * @param srcStart the offset into <TT>srcText</TT> at which
+ * to start matching
+ * @param srcLength the number of characters in <TT>srcText</TT> to match
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence of the characters in <TT>srcChars</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @param start the offset into this at which to start matching
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start) const;
+
+ /**
+ * Locate in this the last occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcChars</TT>, using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * @param start The offset at which searching will start.
+ * @param length The number of characters to search
+ * @return The offset into this of the start of <TT>srcChars</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+ * in <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+ * using bitwise comparison.
+ * @param srcChars The text to search for.
+ * @param srcStart the offset into <TT>srcChars</TT> at which
+ * to start matching
+ * @param srcLength the number of characters in <TT>srcChars</TT> to match
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of the start of <TT>text</TT>,
+ * or -1 if not found.
+ * @stable ICU 2.0
+ */
+ int32_t lastIndexOf(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence of the BMP code point <code>c</code>,
+ * using bitwise comparison.
+ * @param c The code unit to search for.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar c) const;
+
+ /**
+ * Locate in this the last occurrence of the code point <TT>c</TT>,
+ * using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar32 c) const;
+
+ /**
+ * Locate in this the last occurrence of the BMP code point <code>c</code>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ * @param c The code unit to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar c,
+ int32_t start) const;
+
+ /**
+ * Locate in this the last occurrence of the code point <TT>c</TT>
+ * starting at offset <TT>start</TT>, using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @param start The offset at which searching will start.
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar32 c,
+ int32_t start) const;
+
+ /**
+ * Locate in this the last occurrence of the BMP code point <code>c</code>
+ * in the range [<TT>start</TT>, <TT>start + length</TT>),
+ * using bitwise comparison.
+ * @param c The code unit to search for.
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar c,
+ int32_t start,
+ int32_t length) const;
+
+ /**
+ * Locate in this the last occurrence of the code point <TT>c</TT>
+ * in the range [<TT>start</TT>, <TT>start + length</TT>),
+ * using bitwise comparison.
+ *
+ * @param c The code point to search for.
+ * @param start the offset into this at which to start matching
+ * @param length the number of characters in this to search
+ * @return The offset into this of <TT>c</TT>, or -1 if not found.
+ * @stable ICU 2.0
+ */
+ inline int32_t lastIndexOf(UChar32 c,
+ int32_t start,
+ int32_t length) const;
+
+
+ /* Character access */
+
+ /**
+ * Return the code unit at offset <tt>offset</tt>.
+ * If the offset is not valid (0..length()-1) then U+ffff is returned.
+ * @param offset a valid offset into the text
+ * @return the code unit at offset <tt>offset</tt>
+ * or 0xffff if the offset is not valid for this string
+ * @stable ICU 2.0
+ */
+ inline UChar charAt(int32_t offset) const;
+
+ /**
+ * Return the code unit at offset <tt>offset</tt>.
+ * If the offset is not valid (0..length()-1) then U+ffff is returned.
+ * @param offset a valid offset into the text
+ * @return the code unit at offset <tt>offset</tt>
+ * @stable ICU 2.0
+ */
+ inline UChar operator[] (int32_t offset) const;
+
+ /**
+ * Return the code point that contains the code unit
+ * at offset <tt>offset</tt>.
+ * If the offset is not valid (0..length()-1) then U+ffff is returned.
+ * @param offset a valid offset into the text
+ * that indicates the text offset of any of the code units
+ * that will be assembled into a code point (21-bit value) and returned
+ * @return the code point of text at <tt>offset</tt>
+ * or 0xffff if the offset is not valid for this string
+ * @stable ICU 2.0
+ */
+ inline UChar32 char32At(int32_t offset) const;
+
+ /**
+ * Adjust a random-access offset so that
+ * it points to the beginning of a Unicode character.
+ * The offset that is passed in points to
+ * any code unit of a code point,
+ * while the returned offset will point to the first code unit
+ * of the same code point.
+ * In UTF-16, if the input offset points to a second surrogate
+ * of a surrogate pair, then the returned offset will point
+ * to the first surrogate.
+ * @param offset a valid offset into one code point of the text
+ * @return offset of the first code unit of the same code point
+ * @see U16_SET_CP_START
+ * @stable ICU 2.0
+ */
+ inline int32_t getChar32Start(int32_t offset) const;
+
+ /**
+ * Adjust a random-access offset so that
+ * it points behind a Unicode character.
+ * The offset that is passed in points behind
+ * any code unit of a code point,
+ * while the returned offset will point behind the last code unit
+ * of the same code point.
+ * In UTF-16, if the input offset points behind the first surrogate
+ * (i.e., to the second surrogate)
+ * of a surrogate pair, then the returned offset will point
+ * behind the second surrogate (i.e., to the first surrogate).
+ * @param offset a valid offset after any code unit of a code point of the text
+ * @return offset of the first code unit after the same code point
+ * @see U16_SET_CP_LIMIT
+ * @stable ICU 2.0
+ */
+ inline int32_t getChar32Limit(int32_t offset) const;
+
+ /**
+ * Move the code unit index along the string by delta code points.
+ * Interpret the input index as a code unit-based offset into the string,
+ * move the index forward or backward by delta code points, and
+ * return the resulting index.
+ * The input index should point to the first code unit of a code point,
+ * if there is more than one.
+ *
+ * Both input and output indexes are code unit-based as for all
+ * string indexes/offsets in ICU (and other libraries, like MBCS char*).
+ * If delta<0 then the index is moved backward (toward the start of the string).
+ * If delta>0 then the index is moved forward (toward the end of the string).
+ *
+ * This behaves like CharacterIterator::move32(delta, kCurrent).
+ *
+ * Behavior for out-of-bounds indexes:
+ * <code>moveIndex32</code> pins the input index to 0..length(), i.e.,
+ * if the input index<0 then it is pinned to 0;
+ * if it is index>length() then it is pinned to length().
+ * Afterwards, the index is moved by <code>delta</code> code points
+ * forward or backward,
+ * but no further backward than to 0 and no further forward than to length().
+ * The resulting index return value will be in between 0 and length(), inclusively.
+ *
+ * Examples:
+ * <pre>
+ * // s has code points 'a' U+10000 'b' U+10ffff U+2029
+ * UnicodeString s=UNICODE_STRING("a\\U00010000b\\U0010ffff\\u2029", 31).unescape();
+ *
+ * // initial index: position of U+10000
+ * int32_t index=1;
+ *
+ * // the following examples will all result in index==4, position of U+10ffff
+ *
+ * // skip 2 code points from some position in the string
+ * index=s.moveIndex32(index, 2); // skips U+10000 and 'b'
+ *
+ * // go to the 3rd code point from the start of s (0-based)
+ * index=s.moveIndex32(0, 3); // skips 'a', U+10000, and 'b'
+ *
+ * // go to the next-to-last code point of s
+ * index=s.moveIndex32(s.length(), -2); // backward-skips U+2029 and U+10ffff
+ * </pre>
+ *
+ * @param index input code unit index
+ * @param delta (signed) code point count to move the index forward or backward
+ * in the string
+ * @return the resulting code unit index
+ * @stable ICU 2.0
+ */
+ int32_t moveIndex32(int32_t index, int32_t delta) const;
+
+ /* Substring extraction */
+
+ /**
+ * Copy the characters in the range
+ * [<tt>start</tt>, <tt>start + length</tt>) into the array <tt>dst</tt>,
+ * beginning at <tt>dstStart</tt>.
+ * If the string aliases to <code>dst</code> itself as an external buffer,
+ * then extract() will not copy the contents.
+ *
+ * @param start offset of first character which will be copied into the array
+ * @param length the number of characters to extract
+ * @param dst array in which to copy characters. The length of <tt>dst</tt>
+ * must be at least (<tt>dstStart + length</tt>).
+ * @param dstStart the offset in <TT>dst</TT> where the first character
+ * will be extracted
+ * @stable ICU 2.0
+ */
+ inline void extract(int32_t start,
+ int32_t length,
+ UChar *dst,
+ int32_t dstStart = 0) const;
+
+ /**
+ * Copy the contents of the string into dest.
+ * This is a convenience function that
+ * checks if there is enough space in dest,
+ * extracts the entire string if possible,
+ * and NUL-terminates dest if possible.
+ *
+ * If the string fits into dest but cannot be NUL-terminated
+ * (length()==destCapacity) then the error code is set to U_STRING_NOT_TERMINATED_WARNING.
+ * If the string itself does not fit into dest
+ * (length()>destCapacity) then the error code is set to U_BUFFER_OVERFLOW_ERROR.
+ *
+ * If the string aliases to <code>dest</code> itself as an external buffer,
+ * then extract() will not copy the contents.
+ *
+ * @param dest Destination string buffer.
+ * @param destCapacity Number of UChars available at dest.
+ * @param errorCode ICU error code.
+ * @return length()
+ * @stable ICU 2.0
+ */
+ int32_t
+ extract(UChar *dest, int32_t destCapacity,
+ UErrorCode &errorCode) const;
+
+ /**
+ * Copy the characters in the range
+ * [<tt>start</tt>, <tt>start + length</tt>) into the UnicodeString
+ * <tt>target</tt>.
+ * @param start offset of first character which will be copied
+ * @param length the number of characters to extract
+ * @param target UnicodeString into which to copy characters.
+ * @return A reference to <TT>target</TT>
+ * @stable ICU 2.0
+ */
+ inline void extract(int32_t start,
+ int32_t length,
+ UnicodeString& target) const;
+
+ /**
+ * Copy the characters in the range [<tt>start</tt>, <tt>limit</tt>)
+ * into the array <tt>dst</tt>, beginning at <tt>dstStart</tt>.
+ * @param start offset of first character which will be copied into the array
+ * @param limit offset immediately following the last character to be copied
+ * @param dst array in which to copy characters. The length of <tt>dst</tt>
+ * must be at least (<tt>dstStart + (limit - start)</tt>).
+ * @param dstStart the offset in <TT>dst</TT> where the first character
+ * will be extracted
+ * @stable ICU 2.0
+ */
+ inline void extractBetween(int32_t start,
+ int32_t limit,
+ UChar *dst,
+ int32_t dstStart = 0) const;
+
+ /**
+ * Copy the characters in the range [<tt>start</tt>, <tt>limit</tt>)
+ * into the UnicodeString <tt>target</tt>. Replaceable API.
+ * @param start offset of first character which will be copied
+ * @param limit offset immediately following the last character to be copied
+ * @param target UnicodeString into which to copy characters.
+ * @return A reference to <TT>target</TT>
+ * @stable ICU 2.0
+ */
+ virtual void extractBetween(int32_t start,
+ int32_t limit,
+ UnicodeString& target) const;
+
+ /**
+ * Copy the characters in the range
+ * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters.
+ * All characters must be invariant (see utypes.h).
+ * Use US_INV as the last, signature-distinguishing parameter.
+ *
+ * This function does not write any more than <code>targetLength</code>
+ * characters but returns the length of the entire output string
+ * so that one can allocate a larger buffer and call the function again
+ * if necessary.
+ * The output string is NUL-terminated if possible.
+ *
+ * @param start offset of first character which will be copied
+ * @param startLength the number of characters to extract
+ * @param target the target buffer for extraction, can be NULL
+ * if targetLength is 0
+ * @param targetCapacity the length of the target buffer
+ * @param inv Signature-distinguishing paramater, use US_INV.
+ * @return the output string length, not including the terminating NUL
+ * @draft ICU 3.2
+ */
+ int32_t extract(int32_t start,
+ int32_t startLength,
+ char *target,
+ int32_t targetCapacity,
+ enum EInvariant inv) const;
+
+#if !UCONFIG_NO_CONVERSION
+
+ /**
+ * Copy the characters in the range
+ * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters
+ * in a specified codepage.
+ * The output string is NUL-terminated.
+ *
+ * Recommendation: For invariant-character strings use
+ * extract(int32_t start, int32_t length, char *target, int32_t targetCapacity, enum EInvariant inv) const
+ * because it avoids object code dependencies of UnicodeString on
+ * the conversion code.
+ *
+ * @param start offset of first character which will be copied
+ * @param startLength the number of characters to extract
+ * @param target the target buffer for extraction
+ * @param codepage the desired codepage for the characters. 0 has
+ * the special meaning of the default codepage
+ * If <code>codepage</code> is an empty string (<code>""</code>),
+ * then a simple conversion is performed on the codepage-invariant
+ * subset ("invariant characters") of the platform encoding. See utypes.h.
+ * If <TT>target</TT> is NULL, then the number of bytes required for
+ * <TT>target</TT> is returned. It is assumed that the target is big enough
+ * to fit all of the characters.
+ * @return the output string length, not including the terminating NUL
+ * @stable ICU 2.0
+ */
+ inline int32_t extract(int32_t start,
+ int32_t startLength,
+ char *target,
+ const char *codepage = 0) const;
+
+ /**
+ * Copy the characters in the range
+ * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters
+ * in a specified codepage.
+ * This function does not write any more than <code>targetLength</code>
+ * characters but returns the length of the entire output string
+ * so that one can allocate a larger buffer and call the function again
+ * if necessary.
+ * The output string is NUL-terminated if possible.
+ *
+ * Recommendation: For invariant-character strings use
+ * extract(int32_t start, int32_t length, char *target, int32_t targetCapacity, enum EInvariant inv) const
+ * because it avoids object code dependencies of UnicodeString on
+ * the conversion code.
+ *
+ * @param start offset of first character which will be copied
+ * @param startLength the number of characters to extract
+ * @param target the target buffer for extraction
+ * @param targetLength the length of the target buffer
+ * @param codepage the desired codepage for the characters. 0 has
+ * the special meaning of the default codepage
+ * If <code>codepage</code> is an empty string (<code>""</code>),
+ * then a simple conversion is performed on the codepage-invariant
+ * subset ("invariant characters") of the platform encoding. See utypes.h.
+ * If <TT>target</TT> is NULL, then the number of bytes required for
+ * <TT>target</TT> is returned.
+ * @return the output string length, not including the terminating NUL
+ * @stable ICU 2.0
+ */
+ int32_t extract(int32_t start,
+ int32_t startLength,
+ char *target,
+ uint32_t targetLength,
+ const char *codepage = 0) const;
+
+ /**
+ * Convert the UnicodeString into a codepage string using an existing UConverter.
+ * The output string is NUL-terminated if possible.
+ *
+ * This function avoids the overhead of opening and closing a converter if
+ * multiple strings are extracted.
+ *
+ * @param dest destination string buffer, can be NULL if destCapacity==0
+ * @param destCapacity the number of chars available at dest
+ * @param cnv the converter object to be used (ucnv_resetFromUnicode() will be called),
+ * or NULL for the default converter
+ * @param errorCode normal ICU error code
+ * @return the length of the output string, not counting the terminating NUL;
+ * if the length is greater than destCapacity, then the string will not fit
+ * and a buffer of the indicated length would need to be passed in
+ * @stable ICU 2.0
+ */
+ int32_t extract(char *dest, int32_t destCapacity,
+ UConverter *cnv,
+ UErrorCode &errorCode) const;
+
+#endif
+
+ /* Length operations */
+
+ /**
+ * Return the length of the UnicodeString object.
+ * The length is the number of UChar code units are in the UnicodeString.
+ * If you want the number of code points, please use countChar32().
+ * @return the length of the UnicodeString object
+ * @see countChar32
+ * @stable ICU 2.0
+ */
+ inline int32_t length(void) const;
+
+ /**
+ * Count Unicode code points in the length UChar code units of the string.
+ * A code point may occupy either one or two UChar code units.
+ * Counting code points involves reading all code units.
+ *
+ * This functions is basically the inverse of moveIndex32().
+ *
+ * @param start the index of the first code unit to check
+ * @param length the number of UChar code units to check
+ * @return the number of code points in the specified code units
+ * @see length
+ * @stable ICU 2.0
+ */
+ int32_t
+ countChar32(int32_t start=0, int32_t length=INT32_MAX) const;
+
+ /**
+ * Check if the length UChar code units of the string
+ * contain more Unicode code points than a certain number.
+ * This is more efficient than counting all code points in this part of the string
+ * and comparing that number with a threshold.
+ * This function may not need to scan the string at all if the length
+ * falls within a certain range, and
+ * never needs to count more than 'number+1' code points.
+ * Logically equivalent to (countChar32(start, length)>number).
+ * A Unicode code point may occupy either one or two UChar code units.
+ *
+ * @param start the index of the first code unit to check (0 for the entire string)
+ * @param length the number of UChar code units to check
+ * (use INT32_MAX for the entire string; remember that start/length
+ * values are pinned)
+ * @param number The number of code points in the (sub)string is compared against
+ * the 'number' parameter.
+ * @return Boolean value for whether the string contains more Unicode code points
+ * than 'number'. Same as (u_countChar32(s, length)>number).
+ * @see countChar32
+ * @see u_strHasMoreChar32Than
+ * @stable ICU 2.4
+ */
+ UBool
+ hasMoreChar32Than(int32_t start, int32_t length, int32_t number) const;
+
+ /**
+ * Determine if this string is empty.
+ * @return TRUE if this string contains 0 characters, FALSE otherwise.
+ * @stable ICU 2.0
+ */
+ inline UBool isEmpty(void) const;
+
+ /**
+ * Return the capacity of the internal buffer of the UnicodeString object.
+ * This is useful together with the getBuffer functions.
+ * See there for details.
+ *
+ * @return the number of UChars available in the internal buffer
+ * @see getBuffer
+ * @stable ICU 2.0
+ */
+ inline int32_t getCapacity(void) const;
+
+ /* Other operations */
+
+ /**
+ * Generate a hash code for this object.
+ * @return The hash code of this UnicodeString.
+ * @stable ICU 2.0
+ */
+ inline int32_t hashCode(void) const;
+
+ /**
+ * Determine if this object contains a valid string.
+ * A bogus string has no value. It is different from an empty string.
+ * It can be used to indicate that no string value is available.
+ * getBuffer() and getTerminatedBuffer() return NULL, and
+ * length() returns 0.
+ *
+ * @return TRUE if the string is valid, FALSE otherwise
+ * @see setToBogus()
+ * @stable ICU 2.0
+ */
+ inline UBool isBogus(void) const;
+
+
+ //========================================
+ // Write operations
+ //========================================
+
+ /* Assignment operations */
+
+ /**
+ * Assignment operator. Replace the characters in this UnicodeString
+ * with the characters from <TT>srcText</TT>.
+ * @param srcText The text containing the characters to replace
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString &operator=(const UnicodeString &srcText);
+
+ /**
+ * Almost the same as the assignment operator.
+ * Replace the characters in this UnicodeString
+ * with the characters from <code>srcText</code>.
+ *
+ * This function works the same for all strings except for ones that
+ * are readonly aliases.
+ * Starting with ICU 2.4, the assignment operator and the copy constructor
+ * allocate a new buffer and copy the buffer contents even for readonly aliases.
+ * This function implements the old, more efficient but less safe behavior
+ * of making this string also a readonly alias to the same buffer.
+ * The fastCopyFrom function must be used only if it is known that the lifetime of
+ * this UnicodeString is at least as long as the lifetime of the aliased buffer
+ * including its contents, for example for strings from resource bundles
+ * or aliases to string contents.
+ *
+ * @param src The text containing the characters to replace.
+ * @return a reference to this
+ * @stable ICU 2.4
+ */
+ UnicodeString &fastCopyFrom(const UnicodeString &src);
+
+ /**
+ * Assignment operator. Replace the characters in this UnicodeString
+ * with the code unit <TT>ch</TT>.
+ * @param ch the code unit to replace
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& operator= (UChar ch);
+
+ /**
+ * Assignment operator. Replace the characters in this UnicodeString
+ * with the code point <TT>ch</TT>.
+ * @param ch the code point to replace
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& operator= (UChar32 ch);
+
+ /**
+ * Set the text in the UnicodeString object to the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcText.length()</TT>).
+ * <TT>srcText</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcText</TT> where new characters
+ * will be obtained
+ * @return a reference to this
+ * @stable ICU 2.2
+ */
+ inline UnicodeString& setTo(const UnicodeString& srcText,
+ int32_t srcStart);
+
+ /**
+ * Set the text in the UnicodeString object to the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * <TT>srcText</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcText</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcText</TT> in the
+ * replace string.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& setTo(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Set the text in the UnicodeString object to the characters in
+ * <TT>srcText</TT>.
+ * <TT>srcText</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& setTo(const UnicodeString& srcText);
+
+ /**
+ * Set the characters in the UnicodeString object to the characters
+ * in <TT>srcChars</TT>. <TT>srcChars</TT> is not modified.
+ * @param srcChars the source for the new characters
+ * @param srcLength the number of Unicode characters in srcChars.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& setTo(const UChar *srcChars,
+ int32_t srcLength);
+
+ /**
+ * Set the characters in the UnicodeString object to the code unit
+ * <TT>srcChar</TT>.
+ * @param srcChar the code unit which becomes the UnicodeString's character
+ * content
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& setTo(UChar srcChar);
+
+ /**
+ * Set the characters in the UnicodeString object to the code point
+ * <TT>srcChar</TT>.
+ * @param srcChar the code point which becomes the UnicodeString's character
+ * content
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& setTo(UChar32 srcChar);
+
+ /**
+ * Aliasing setTo() function, analogous to the readonly-aliasing UChar* constructor.
+ * The text will be used for the UnicodeString object, but
+ * it will not be released when the UnicodeString is destroyed.
+ * This has copy-on-write semantics:
+ * When the string is modified, then the buffer is first copied into
+ * newly allocated memory.
+ * The aliased buffer is never modified.
+ * In an assignment to another UnicodeString, the text will be aliased again,
+ * so that both strings then alias the same readonly-text.
+ *
+ * @param isTerminated specifies if <code>text</code> is <code>NUL</code>-terminated.
+ * This must be true if <code>textLength==-1</code>.
+ * @param text The characters to alias for the UnicodeString.
+ * @param textLength The number of Unicode characters in <code>text</code> to alias.
+ * If -1, then this constructor will determine the length
+ * by calling <code>u_strlen()</code>.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString &setTo(UBool isTerminated,
+ const UChar *text,
+ int32_t textLength);
+
+ /**
+ * Aliasing setTo() function, analogous to the writable-aliasing UChar* constructor.
+ * The text will be used for the UnicodeString object, but
+ * it will not be released when the UnicodeString is destroyed.
+ * This has write-through semantics:
+ * For as long as the capacity of the buffer is sufficient, write operations
+ * will directly affect the buffer. When more capacity is necessary, then
+ * a new buffer will be allocated and the contents copied as with regularly
+ * constructed strings.
+ * In an assignment to another UnicodeString, the buffer will be copied.
+ * The extract(UChar *dst) function detects whether the dst pointer is the same
+ * as the string buffer itself and will in this case not copy the contents.
+ *
+ * @param buffer The characters to alias for the UnicodeString.
+ * @param buffLength The number of Unicode characters in <code>buffer</code> to alias.
+ * @param buffCapacity The size of <code>buffer</code> in UChars.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString &setTo(UChar *buffer,
+ int32_t buffLength,
+ int32_t buffCapacity);
+
+ /**
+ * Make this UnicodeString object invalid.
+ * The string will test TRUE with isBogus().
+ *
+ * A bogus string has no value. It is different from an empty string.
+ * It can be used to indicate that no string value is available.
+ * getBuffer() and getTerminatedBuffer() return NULL, and
+ * length() returns 0.
+ *
+ * This utility function is used throughout the UnicodeString
+ * implementation to indicate that a UnicodeString operation failed,
+ * and may be used in other functions,
+ * especially but not exclusively when such functions do not
+ * take a UErrorCode for simplicity.
+ *
+ * The following methods, and no others, will clear a string object's bogus flag:
+ * - remove()
+ * - remove(0, INT32_MAX)
+ * - truncate(0)
+ * - operator=() (assignment operator)
+ * - setTo(...)
+ *
+ * The simplest ways to turn a bogus string into an empty one
+ * is to use the remove() function.
+ * Examples for other functions that are equivalent to "set to empty string":
+ * \code
+ * if(s.isBogus()) {
+ * s.remove(); // set to an empty string (remove all), or
+ * s.remove(0, INT32_MAX); // set to an empty string (remove all), or
+ * s.truncate(0); // set to an empty string (complete truncation), or
+ * s=UnicodeString(); // assign an empty string, or
+ * s.setTo((UChar32)-1); // set to a pseudo code point that is out of range, or
+ * static const UChar nul=0;
+ * s.setTo(&nul, 0); // set to an empty C Unicode string
+ * }
+ * \endcode
+ *
+ * @see isBogus()
+ * @stable ICU 2.0
+ */
+ void setToBogus();
+
+ /**
+ * Set the character at the specified offset to the specified character.
+ * @param offset A valid offset into the text of the character to set
+ * @param ch The new character
+ * @return A reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& setCharAt(int32_t offset,
+ UChar ch);
+
+
+ /* Append operations */
+
+ /**
+ * Append operator. Append the code unit <TT>ch</TT> to the UnicodeString
+ * object.
+ * @param ch the code unit to be appended
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& operator+= (UChar ch);
+
+ /**
+ * Append operator. Append the code point <TT>ch</TT> to the UnicodeString
+ * object.
+ * @param ch the code point to be appended
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& operator+= (UChar32 ch);
+
+ /**
+ * Append operator. Append the characters in <TT>srcText</TT> to the
+ * UnicodeString object at offset <TT>start</TT>. <TT>srcText</TT> is
+ * not modified.
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& operator+= (const UnicodeString& srcText);
+
+ /**
+ * Append the characters
+ * in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) to the
+ * UnicodeString object at offset <TT>start</TT>. <TT>srcText</TT>
+ * is not modified.
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcText</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcText</TT> in
+ * the append string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Append the characters in <TT>srcText</TT> to the UnicodeString object at
+ * offset <TT>start</TT>. <TT>srcText</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(const UnicodeString& srcText);
+
+ /**
+ * Append the characters in <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) to the UnicodeString
+ * object at offset
+ * <TT>start</TT>. <TT>srcChars</TT> is not modified.
+ * @param srcChars the source for the new characters
+ * @param srcStart the offset into <TT>srcChars</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcChars</TT> in
+ * the append string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Append the characters in <TT>srcChars</TT> to the UnicodeString object
+ * at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+ * @param srcChars the source for the new characters
+ * @param srcLength the number of Unicode characters in <TT>srcChars</TT>
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(const UChar *srcChars,
+ int32_t srcLength);
+
+ /**
+ * Append the code unit <TT>srcChar</TT> to the UnicodeString object.
+ * @param srcChar the code unit to append
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(UChar srcChar);
+
+ /**
+ * Append the code point <TT>srcChar</TT> to the UnicodeString object.
+ * @param srcChar the code point to append
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& append(UChar32 srcChar);
+
+
+ /* Insert operations */
+
+ /**
+ * Insert the characters in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) into the UnicodeString
+ * object at offset <TT>start</TT>. <TT>srcText</TT> is not modified.
+ * @param start the offset where the insertion begins
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcText</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcText</TT> in
+ * the insert string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Insert the characters in <TT>srcText</TT> into the UnicodeString object
+ * at offset <TT>start</TT>. <TT>srcText</TT> is not modified.
+ * @param start the offset where the insertion begins
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ const UnicodeString& srcText);
+
+ /**
+ * Insert the characters in <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) into the UnicodeString
+ * object at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+ * @param start the offset at which the insertion begins
+ * @param srcChars the source for the new characters
+ * @param srcStart the offset into <TT>srcChars</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * in the insert string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Insert the characters in <TT>srcChars</TT> into the UnicodeString object
+ * at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+ * @param start the offset where the insertion begins
+ * @param srcChars the source for the new characters
+ * @param srcLength the number of Unicode characters in srcChars.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ const UChar *srcChars,
+ int32_t srcLength);
+
+ /**
+ * Insert the code unit <TT>srcChar</TT> into the UnicodeString object at
+ * offset <TT>start</TT>.
+ * @param start the offset at which the insertion occurs
+ * @param srcChar the code unit to insert
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ UChar srcChar);
+
+ /**
+ * Insert the code point <TT>srcChar</TT> into the UnicodeString object at
+ * offset <TT>start</TT>.
+ * @param start the offset at which the insertion occurs
+ * @param srcChar the code point to insert
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& insert(int32_t start,
+ UChar32 srcChar);
+
+
+ /* Replace operations */
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+ * <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+ * <TT>srcText</TT> is not modified.
+ * @param start the offset at which the replace operation begins
+ * @param length the number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcText</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcText</TT> in
+ * the replace string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& replace(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>)
+ * with the characters in <TT>srcText</TT>. <TT>srcText</TT> is
+ * not modified.
+ * @param start the offset at which the replace operation begins
+ * @param length the number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& replace(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText);
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+ * <TT>srcChars</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>). <TT>srcChars</TT>
+ * is not modified.
+ * @param start the offset at which the replace operation begins
+ * @param length the number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcChars the source for the new characters
+ * @param srcStart the offset into <TT>srcChars</TT> where new characters
+ * will be obtained
+ * @param srcLength the number of characters in <TT>srcChars</TT>
+ * in the replace string
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& replace(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+ * <TT>srcChars</TT>. <TT>srcChars</TT> is not modified.
+ * @param start the offset at which the replace operation begins
+ * @param length number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcChars the source for the new characters
+ * @param srcLength the number of Unicode characters in srcChars
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& replace(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcLength);
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the code unit
+ * <TT>srcChar</TT>.
+ * @param start the offset at which the replace operation begins
+ * @param length the number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcChar the new code unit
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& replace(int32_t start,
+ int32_t length,
+ UChar srcChar);
+
+ /**
+ * Replace the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) with the code point
+ * <TT>srcChar</TT>.
+ * @param start the offset at which the replace operation begins
+ * @param length the number of characters to replace. The character at
+ * <TT>start + length</TT> is not modified.
+ * @param srcChar the new code point
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& replace(int32_t start,
+ int32_t length,
+ UChar32 srcChar);
+
+ /**
+ * Replace the characters in the range [<TT>start</TT>, <TT>limit</TT>)
+ * with the characters in <TT>srcText</TT>. <TT>srcText</TT> is not modified.
+ * @param start the offset at which the replace operation begins
+ * @param limit the offset immediately following the replace range
+ * @param srcText the source for the new characters
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& replaceBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText);
+
+ /**
+ * Replace the characters in the range [<TT>start</TT>, <TT>limit</TT>)
+ * with the characters in <TT>srcText</TT> in the range
+ * [<TT>srcStart</TT>, <TT>srcLimit</TT>). <TT>srcText</TT> is not modified.
+ * @param start the offset at which the replace operation begins
+ * @param limit the offset immediately following the replace range
+ * @param srcText the source for the new characters
+ * @param srcStart the offset into <TT>srcChars</TT> where new characters
+ * will be obtained
+ * @param srcLimit the offset immediately following the range to copy
+ * in <TT>srcText</TT>
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& replaceBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit);
+
+ /**
+ * Replace a substring of this object with the given text.
+ * @param start the beginning index, inclusive; <code>0 <= start
+ * <= limit</code>.
+ * @param limit the ending index, exclusive; <code>start <= limit
+ * <= length()</code>.
+ * @param text the text to replace characters <code>start</code>
+ * to <code>limit - 1</code>
+ * @stable ICU 2.0
+ */
+ virtual void handleReplaceBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& text);
+
+ /**
+ * Replaceable API
+ * @return TRUE if it has MetaData
+ * @stable ICU 2.4
+ */
+ virtual UBool hasMetaData() const;
+
+ /**
+ * Copy a substring of this object, retaining attribute (out-of-band)
+ * information. This method is used to duplicate or reorder substrings.
+ * The destination index must not overlap the source range.
+ *
+ * @param start the beginning index, inclusive; <code>0 <= start <=
+ * limit</code>.
+ * @param limit the ending index, exclusive; <code>start <= limit <=
+ * length()</code>.
+ * @param dest the destination index. The characters from
+ * <code>start..limit-1</code> will be copied to <code>dest</code>.
+ * Implementations of this method may assume that <code>dest <= start ||
+ * dest >= limit</code>.
+ * @stable ICU 2.0
+ */
+ virtual void copy(int32_t start, int32_t limit, int32_t dest);
+
+ /* Search and replace operations */
+
+ /**
+ * Replace all occurrences of characters in oldText with the characters
+ * in newText
+ * @param oldText the text containing the search text
+ * @param newText the text containing the replacement text
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& findAndReplace(const UnicodeString& oldText,
+ const UnicodeString& newText);
+
+ /**
+ * Replace all occurrences of characters in oldText with characters
+ * in newText
+ * in the range [<TT>start</TT>, <TT>start + length</TT>).
+ * @param start the start of the range in which replace will performed
+ * @param length the length of the range in which replace will be performed
+ * @param oldText the text containing the search text
+ * @param newText the text containing the replacement text
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& findAndReplace(int32_t start,
+ int32_t length,
+ const UnicodeString& oldText,
+ const UnicodeString& newText);
+
+ /**
+ * Replace all occurrences of characters in oldText in the range
+ * [<TT>oldStart</TT>, <TT>oldStart + oldLength</TT>) with the characters
+ * in newText in the range
+ * [<TT>newStart</TT>, <TT>newStart + newLength</TT>)
+ * in the range [<TT>start</TT>, <TT>start + length</TT>).
+ * @param start the start of the range in which replace will performed
+ * @param length the length of the range in which replace will be performed
+ * @param oldText the text containing the search text
+ * @param oldStart the start of the search range in <TT>oldText</TT>
+ * @param oldLength the length of the search range in <TT>oldText</TT>
+ * @param newText the text containing the replacement text
+ * @param newStart the start of the replacement range in <TT>newText</TT>
+ * @param newLength the length of the replacement range in <TT>newText</TT>
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& findAndReplace(int32_t start,
+ int32_t length,
+ const UnicodeString& oldText,
+ int32_t oldStart,
+ int32_t oldLength,
+ const UnicodeString& newText,
+ int32_t newStart,
+ int32_t newLength);
+
+
+ /* Remove operations */
+
+ /**
+ * Remove all characters from the UnicodeString object.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& remove(void);
+
+ /**
+ * Remove the characters in the range
+ * [<TT>start</TT>, <TT>start + length</TT>) from the UnicodeString object.
+ * @param start the offset of the first character to remove
+ * @param length the number of characters to remove
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& remove(int32_t start,
+ int32_t length = (int32_t)INT32_MAX);
+
+ /**
+ * Remove the characters in the range
+ * [<TT>start</TT>, <TT>limit</TT>) from the UnicodeString object.
+ * @param start the offset of the first character to remove
+ * @param limit the offset immediately following the range to remove
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& removeBetween(int32_t start,
+ int32_t limit = (int32_t)INT32_MAX);
+
+
+ /* Length operations */
+
+ /**
+ * Pad the start of this UnicodeString with the character <TT>padChar</TT>.
+ * If the length of this UnicodeString is less than targetLength,
+ * length() - targetLength copies of padChar will be added to the
+ * beginning of this UnicodeString.
+ * @param targetLength the desired length of the string
+ * @param padChar the character to use for padding. Defaults to
+ * space (U+0020)
+ * @return TRUE if the text was padded, FALSE otherwise.
+ * @stable ICU 2.0
+ */
+ UBool padLeading(int32_t targetLength,
+ UChar padChar = 0x0020);
+
+ /**
+ * Pad the end of this UnicodeString with the character <TT>padChar</TT>.
+ * If the length of this UnicodeString is less than targetLength,
+ * length() - targetLength copies of padChar will be added to the
+ * end of this UnicodeString.
+ * @param targetLength the desired length of the string
+ * @param padChar the character to use for padding. Defaults to
+ * space (U+0020)
+ * @return TRUE if the text was padded, FALSE otherwise.
+ * @stable ICU 2.0
+ */
+ UBool padTrailing(int32_t targetLength,
+ UChar padChar = 0x0020);
+
+ /**
+ * Truncate this UnicodeString to the <TT>targetLength</TT>.
+ * @param targetLength the desired length of this UnicodeString.
+ * @return TRUE if the text was truncated, FALSE otherwise
+ * @stable ICU 2.0
+ */
+ inline UBool truncate(int32_t targetLength);
+
+ /**
+ * Trims leading and trailing whitespace from this UnicodeString.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ UnicodeString& trim(void);
+
+
+ /* Miscellaneous operations */
+
+ /**
+ * Reverse this UnicodeString in place.
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& reverse(void);
+
+ /**
+ * Reverse the range [<TT>start</TT>, <TT>start + length</TT>) in
+ * this UnicodeString.
+ * @param start the start of the range to reverse
+ * @param length the number of characters to to reverse
+ * @return a reference to this
+ * @stable ICU 2.0
+ */
+ inline UnicodeString& reverse(int32_t start,
+ int32_t length);
+
+ /**
+ * Convert the characters in this to UPPER CASE following the conventions of
+ * the default locale.
+ * @return A reference to this.
+ * @stable ICU 2.0
+ */
+ UnicodeString& toUpper(void);
+
+ /**
+ * Convert the characters in this to UPPER CASE following the conventions of
+ * a specific locale.
+ * @param locale The locale containing the conventions to use.
+ * @return A reference to this.
+ * @stable ICU 2.0
+ */
+ UnicodeString& toUpper(const Locale& locale);
+
+ /**
+ * Convert the characters in this to lower case following the conventions of
+ * the default locale.
+ * @return A reference to this.
+ * @stable ICU 2.0
+ */
+ UnicodeString& toLower(void);
+
+ /**
+ * Convert the characters in this to lower case following the conventions of
+ * a specific locale.
+ * @param locale The locale containing the conventions to use.
+ * @return A reference to this.
+ * @stable ICU 2.0
+ */
+ UnicodeString& toLower(const Locale& locale);
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+ /**
+ * Titlecase this string, convenience function using the default locale.
+ *
+ * Casing is locale-dependent and context-sensitive.
+ * Titlecasing uses a break iterator to find the first characters of words
+ * that are to be titlecased. It titlecases those characters and lowercases
+ * all others.
+ *
+ * The titlecase break iterator can be provided to customize for arbitrary
+ * styles, using rules and dictionaries beyond the standard iterators.
+ * It may be more efficient to always provide an iterator to avoid
+ * opening and closing one for each string.
+ * The standard titlecase iterator for the root locale implements the
+ * algorithm of Unicode TR 21.
+ *
+ * This function uses only the first() and next() methods of the
+ * provided break iterator.
+ *
+ * @param titleIter A break iterator to find the first characters of words
+ * that are to be titlecased.
+ * If none is provided (0), then a standard titlecase
+ * break iterator is opened.
+ * Otherwise the provided iterator is set to the string's text.
+ * @return A reference to this.
+ * @stable ICU 2.1
+ */
+ UnicodeString &toTitle(BreakIterator *titleIter);
+
+ /**
+ * Titlecase this string.
+ *
+ * Casing is locale-dependent and context-sensitive.
+ * Titlecasing uses a break iterator to find the first characters of words
+ * that are to be titlecased. It titlecases those characters and lowercases
+ * all others.
+ *
+ * The titlecase break iterator can be provided to customize for arbitrary
+ * styles, using rules and dictionaries beyond the standard iterators.
+ * It may be more efficient to always provide an iterator to avoid
+ * opening and closing one for each string.
+ * The standard titlecase iterator for the root locale implements the
+ * algorithm of Unicode TR 21.
+ *
+ * This function uses only the first() and next() methods of the
+ * provided break iterator.
+ *
+ * @param titleIter A break iterator to find the first characters of words
+ * that are to be titlecased.
+ * If none is provided (0), then a standard titlecase
+ * break iterator is opened.
+ * Otherwise the provided iterator is set to the string's text.
+ * @param locale The locale to consider.
+ * @return A reference to this.
+ * @stable ICU 2.1
+ */
+ UnicodeString &toTitle(BreakIterator *titleIter, const Locale &locale);
+
+#endif
+
+ /**
+ * Case-fold the characters in this string.
+ * Case-folding is locale-independent and not context-sensitive,
+ * but there is an option for whether to include or exclude mappings for dotted I
+ * and dotless i that are marked with 'I' in CaseFolding.txt.
+ * The result may be longer or shorter than the original.
+ *
+ * @param options Either U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ * @return A reference to this.
+ * @stable ICU 2.0
+ */
+ UnicodeString &foldCase(uint32_t options=0 /*U_FOLD_CASE_DEFAULT*/);
+
+ //========================================
+ // Access to the internal buffer
+ //========================================
+
+ /**
+ * Get a read/write pointer to the internal buffer.
+ * The buffer is guaranteed to be large enough for at least minCapacity UChars,
+ * writable, and is still owned by the UnicodeString object.
+ * Calls to getBuffer(minCapacity) must not be nested, and
+ * must be matched with calls to releaseBuffer(newLength).
+ * If the string buffer was read-only or shared,
+ * then it will be reallocated and copied.
+ *
+ * An attempted nested call will return 0, and will not further modify the
+ * state of the UnicodeString object.
+ * It also returns 0 if the string is bogus.
+ *
+ * The actual capacity of the string buffer may be larger than minCapacity.
+ * getCapacity() returns the actual capacity.
+ * For many operations, the full capacity should be used to avoid reallocations.
+ *
+ * While the buffer is "open" between getBuffer(minCapacity)
+ * and releaseBuffer(newLength), the following applies:
+ * - The string length is set to 0.
+ * - Any read API call on the UnicodeString object will behave like on a 0-length string.
+ * - Any write API call on the UnicodeString object is disallowed and will have no effect.
+ * - You can read from and write to the returned buffer.
+ * - The previous string contents will still be in the buffer;
+ * if you want to use it, then you need to call length() before getBuffer(minCapacity).
+ * If the length() was greater than minCapacity, then any contents after minCapacity
+ * may be lost.
+ * The buffer contents is not NUL-terminated by getBuffer().
+ * If length()<getCapacity() then you can terminate it by writing a NUL
+ * at index length().
+ * - You must call releaseBuffer(newLength) before and in order to
+ * return to normal UnicodeString operation.
+ *
+ * @param minCapacity the minimum number of UChars that are to be available
+ * in the buffer, starting at the returned pointer;
+ * default to the current string capacity if minCapacity==-1
+ * @return a writable pointer to the internal string buffer,
+ * or 0 if an error occurs (nested calls, out of memory)
+ *
+ * @see releaseBuffer
+ * @see getTerminatedBuffer()
+ * @stable ICU 2.0
+ */
+ UChar *getBuffer(int32_t minCapacity);
+
+ /**
+ * Release a read/write buffer on a UnicodeString object with an
+ * "open" getBuffer(minCapacity).
+ * This function must be called in a matched pair with getBuffer(minCapacity).
+ * releaseBuffer(newLength) must be called if and only if a getBuffer(minCapacity) is "open".
+ *
+ * It will set the string length to newLength, at most to the current capacity.
+ * If newLength==-1 then it will set the length according to the
+ * first NUL in the buffer, or to the capacity if there is no NUL.
+ *
+ * After calling releaseBuffer(newLength) the UnicodeString is back to normal operation.
+ *
+ * @param newLength the new length of the UnicodeString object;
+ * defaults to the current capacity if newLength is greater than that;
+ * if newLength==-1, it defaults to u_strlen(buffer) but not more than
+ * the current capacity of the string
+ *
+ * @see getBuffer(int32_t minCapacity)
+ * @stable ICU 2.0
+ */
+ void releaseBuffer(int32_t newLength=-1);
+
+ /**
+ * Get a read-only pointer to the internal buffer.
+ * This can be called at any time on a valid UnicodeString.
+ *
+ * It returns 0 if the string is bogus, or
+ * during an "open" getBuffer(minCapacity).
+ *
+ * It can be called as many times as desired.
+ * The pointer that it returns will remain valid until the UnicodeString object is modified,
+ * at which time the pointer is semantically invalidated and must not be used any more.
+ *
+ * The capacity of the buffer can be determined with getCapacity().
+ * The part after length() may or may not be initialized and valid,
+ * depending on the history of the UnicodeString object.
+ *
+ * The buffer contents is (probably) not NUL-terminated.
+ * You can check if it is with
+ * <code>(s.length()<s.getCapacity() && buffer[s.length()]==0)</code>.
+ * (See getTerminatedBuffer().)
+ *
+ * The buffer may reside in read-only memory. Its contents must not
+ * be modified.
+ *
+ * @return a read-only pointer to the internal string buffer,
+ * or 0 if the string is empty or bogus
+ *
+ * @see getBuffer(int32_t minCapacity)
+ * @see getTerminatedBuffer()
+ * @stable ICU 2.0
+ */
+ inline const UChar *getBuffer() const;
+
+ /**
+ * Get a read-only pointer to the internal buffer,
+ * making sure that it is NUL-terminated.
+ * This can be called at any time on a valid UnicodeString.
+ *
+ * It returns 0 if the string is bogus, or
+ * during an "open" getBuffer(minCapacity), or if the buffer cannot
+ * be NUL-terminated (because memory allocation failed).
+ *
+ * It can be called as many times as desired.
+ * The pointer that it returns will remain valid until the UnicodeString object is modified,
+ * at which time the pointer is semantically invalidated and must not be used any more.
+ *
+ * The capacity of the buffer can be determined with getCapacity().
+ * The part after length()+1 may or may not be initialized and valid,
+ * depending on the history of the UnicodeString object.
+ *
+ * The buffer contents is guaranteed to be NUL-terminated.
+ * getTerminatedBuffer() may reallocate the buffer if a terminating NUL
+ * is written.
+ * For this reason, this function is not const, unlike getBuffer().
+ * Note that a UnicodeString may also contain NUL characters as part of its contents.
+ *
+ * The buffer may reside in read-only memory. Its contents must not
+ * be modified.
+ *
+ * @return a read-only pointer to the internal string buffer,
+ * or 0 if the string is empty or bogus
+ *
+ * @see getBuffer(int32_t minCapacity)
+ * @see getBuffer()
+ * @stable ICU 2.2
+ */
+ inline const UChar *getTerminatedBuffer();
+
+ //========================================
+ // Constructors
+ //========================================
+
+ /** Construct an empty UnicodeString.
+ * @stable ICU 2.0
+ */
+ UnicodeString();
+
+ /**
+ * Construct a UnicodeString with capacity to hold <TT>capacity</TT> UChars
+ * @param capacity the number of UChars this UnicodeString should hold
+ * before a resize is necessary; if count is greater than 0 and count
+ * code points c take up more space than capacity, then capacity is adjusted
+ * accordingly.
+ * @param c is used to initially fill the string
+ * @param count specifies how many code points c are to be written in the
+ * string
+ * @stable ICU 2.0
+ */
+ UnicodeString(int32_t capacity, UChar32 c, int32_t count);
+
+ /**
+ * Single UChar (code unit) constructor.
+ * @param ch the character to place in the UnicodeString
+ * @stable ICU 2.0
+ */
+ UnicodeString(UChar ch);
+
+ /**
+ * Single UChar32 (code point) constructor.
+ * @param ch the character to place in the UnicodeString
+ * @stable ICU 2.0
+ */
+ UnicodeString(UChar32 ch);
+
+ /**
+ * UChar* constructor.
+ * @param text The characters to place in the UnicodeString. <TT>text</TT>
+ * must be NULL (U+0000) terminated.
+ * @stable ICU 2.0
+ */
+ UnicodeString(const UChar *text);
+
+ /**
+ * UChar* constructor.
+ * @param text The characters to place in the UnicodeString.
+ * @param textLength The number of Unicode characters in <TT>text</TT>
+ * to copy.
+ * @stable ICU 2.0
+ */
+ UnicodeString(const UChar *text,
+ int32_t textLength);
+
+ /**
+ * Readonly-aliasing UChar* constructor.
+ * The text will be used for the UnicodeString object, but
+ * it will not be released when the UnicodeString is destroyed.
+ * This has copy-on-write semantics:
+ * When the string is modified, then the buffer is first copied into
+ * newly allocated memory.
+ * The aliased buffer is never modified.
+ * In an assignment to another UnicodeString, the text will be aliased again,
+ * so that both strings then alias the same readonly-text.
+ *
+ * @param isTerminated specifies if <code>text</code> is <code>NUL</code>-terminated.
+ * This must be true if <code>textLength==-1</code>.
+ * @param text The characters to alias for the UnicodeString.
+ * @param textLength The number of Unicode characters in <code>text</code> to alias.
+ * If -1, then this constructor will determine the length
+ * by calling <code>u_strlen()</code>.
+ * @stable ICU 2.0
+ */
+ UnicodeString(UBool isTerminated,
+ const UChar *text,
+ int32_t textLength);
+
+ /**
+ * Writable-aliasing UChar* constructor.
+ * The text will be used for the UnicodeString object, but
+ * it will not be released when the UnicodeString is destroyed.
+ * This has write-through semantics:
+ * For as long as the capacity of the buffer is sufficient, write operations
+ * will directly affect the buffer. When more capacity is necessary, then
+ * a new buffer will be allocated and the contents copied as with regularly
+ * constructed strings.
+ * In an assignment to another UnicodeString, the buffer will be copied.
+ * The extract(UChar *dst) function detects whether the dst pointer is the same
+ * as the string buffer itself and will in this case not copy the contents.
+ *
+ * @param buffer The characters to alias for the UnicodeString.
+ * @param buffLength The number of Unicode characters in <code>buffer</code> to alias.
+ * @param buffCapacity The size of <code>buffer</code> in UChars.
+ * @stable ICU 2.0
+ */
+ UnicodeString(UChar *buffer, int32_t buffLength, int32_t buffCapacity);
+
+#if !UCONFIG_NO_CONVERSION
+
+ /**
+ * char* constructor.
+ * @param codepageData an array of bytes, null-terminated
+ * @param codepage the encoding of <TT>codepageData</TT>. The special
+ * value 0 for <TT>codepage</TT> indicates that the text is in the
+ * platform's default codepage.
+ *
+ * If <code>codepage</code> is an empty string (<code>""</code>),
+ * then a simple conversion is performed on the codepage-invariant
+ * subset ("invariant characters") of the platform encoding. See utypes.h.
+ * Recommendation: For invariant-character strings use the constructor
+ * UnicodeString(const char *src, int32_t length, enum EInvariant inv)
+ * because it avoids object code dependencies of UnicodeString on
+ * the conversion code.
+ *
+ * @stable ICU 2.0
+ */
+ UnicodeString(const char *codepageData,
+ const char *codepage = 0);
+
+ /**
+ * char* constructor.
+ * @param codepageData an array of bytes.
+ * @param dataLength The number of bytes in <TT>codepageData</TT>.
+ * @param codepage the encoding of <TT>codepageData</TT>. The special
+ * value 0 for <TT>codepage</TT> indicates that the text is in the
+ * platform's default codepage.
+ * If <code>codepage</code> is an empty string (<code>""</code>),
+ * then a simple conversion is performed on the codepage-invariant
+ * subset ("invariant characters") of the platform encoding. See utypes.h.
+ * Recommendation: For invariant-character strings use the constructor
+ * UnicodeString(const char *src, int32_t length, enum EInvariant inv)
+ * because it avoids object code dependencies of UnicodeString on
+ * the conversion code.
+ *
+ * @stable ICU 2.0
+ */
+ UnicodeString(const char *codepageData,
+ int32_t dataLength,
+ const char *codepage = 0);
+
+ /**
+ * char * / UConverter constructor.
+ * This constructor uses an existing UConverter object to
+ * convert the codepage string to Unicode and construct a UnicodeString
+ * from that.
+ *
+ * The converter is reset at first.
+ * If the error code indicates a failure before this constructor is called,
+ * or if an error occurs during conversion or construction,
+ * then the string will be bogus.
+ *
+ * This function avoids the overhead of opening and closing a converter if
+ * multiple strings are constructed.
+ *
+ * @param src input codepage string
+ * @param srcLength length of the input string, can be -1 for NUL-terminated strings
+ * @param cnv converter object (ucnv_resetToUnicode() will be called),
+ * can be NULL for the default converter
+ * @param errorCode normal ICU error code
+ * @stable ICU 2.0
+ */
+ UnicodeString(
+ const char *src, int32_t srcLength,
+ UConverter *cnv,
+ UErrorCode &errorCode);
+
+#endif
+
+ /**
+ * Constructs a Unicode string from an invariant-character char * string.
+ * About invariant characters see utypes.h.
+ * This constructor has no runtime dependency on conversion code and is
+ * therefore recommended over ones taking a charset name string
+ * (where the empty string "" indicates invariant-character conversion).
+ *
+ * Use the macro US_INV as the third, signature-distinguishing parameter.
+ *
+ * For example:
+ * \code
+ * void fn(const char *s) {
+ * UnicodeString ustr(s, -1, US_INV);
+ * // use ustr ...
+ * }
+ * \endcode
+ *
+ * @param src String using only invariant characters.
+ * @param length Length of src, or -1 if NUL-terminated.
+ * @param inv Signature-distinguishing paramater, use US_INV.
+ *
+ * @see US_INV
+ * @draft ICU 3.2
+ */
+ UnicodeString(const char *src, int32_t length, enum EInvariant inv);
+
+
+ /**
+ * Copy constructor.
+ * @param that The UnicodeString object to copy.
+ * @stable ICU 2.0
+ */
+ UnicodeString(const UnicodeString& that);
+
+ /**
+ * 'Substring' constructor from tail of source string.
+ * @param src The UnicodeString object to copy.
+ * @param srcStart The offset into <tt>src</tt> at which to start copying.
+ * @stable ICU 2.2
+ */
+ UnicodeString(const UnicodeString& src, int32_t srcStart);
+
+ /**
+ * 'Substring' constructor from subrange of source string.
+ * @param src The UnicodeString object to copy.
+ * @param srcStart The offset into <tt>src</tt> at which to start copying.
+ * @param srcLength The number of characters from <tt>src</tt> to copy.
+ * @stable ICU 2.2
+ */
+ UnicodeString(const UnicodeString& src, int32_t srcStart, int32_t srcLength);
+
+ /**
+ * Clone this object, an instance of a subclass of Replaceable.
+ * Clones can be used concurrently in multiple threads.
+ * If a subclass does not implement clone(), or if an error occurs,
+ * then NULL is returned.
+ * The clone functions in all subclasses return a pointer to a Replaceable
+ * because some compilers do not support covariant (same-as-this)
+ * return types; cast to the appropriate subclass if necessary.
+ * The caller must delete the clone.
+ *
+ * @return a clone of this object
+ *
+ * @see Replaceable::clone
+ * @see getDynamicClassID
+ * @stable ICU 2.6
+ */
+ virtual Replaceable *clone() const;
+
+ /** Destructor.
+ * @stable ICU 2.0
+ */
+ virtual ~UnicodeString();
+
+
+ /* Miscellaneous operations */
+
+ /**
+ * Unescape a string of characters and return a string containing
+ * the result. The following escape sequences are recognized:
+ *
+ * \\uhhhh 4 hex digits; h in [0-9A-Fa-f]
+ * \\Uhhhhhhhh 8 hex digits
+ * \\xhh 1-2 hex digits
+ * \\ooo 1-3 octal digits; o in [0-7]
+ * \\cX control-X; X is masked with 0x1F
+ *
+ * as well as the standard ANSI C escapes:
+ *
+ * \\a => U+0007, \\b => U+0008, \\t => U+0009, \\n => U+000A,
+ * \\v => U+000B, \\f => U+000C, \\r => U+000D, \\e => U+001B,
+ * \\" => U+0022, \\' => U+0027, \\? => U+003F, \\\\ => U+005C
+ *
+ * Anything else following a backslash is generically escaped. For
+ * example, "[a\\-z]" returns "[a-z]".
+ *
+ * If an escape sequence is ill-formed, this method returns an empty
+ * string. An example of an ill-formed sequence is "\\u" followed by
+ * fewer than 4 hex digits.
+ *
+ * This function is similar to u_unescape() but not identical to it.
+ * The latter takes a source char*, so it does escape recognition
+ * and also invariant conversion.
+ *
+ * @return a string with backslash escapes interpreted, or an
+ * empty string on error.
+ * @see UnicodeString#unescapeAt()
+ * @see u_unescape()
+ * @see u_unescapeAt()
+ * @stable ICU 2.0
+ */
+ UnicodeString unescape() const;
+
+ /**
+ * Unescape a single escape sequence and return the represented
+ * character. See unescape() for a listing of the recognized escape
+ * sequences. The character at offset-1 is assumed (without
+ * checking) to be a backslash. If the escape sequence is
+ * ill-formed, or the offset is out of range, (UChar32)0xFFFFFFFF is
+ * returned.
+ *
+ * @param offset an input output parameter. On input, it is the
+ * offset into this string where the escape sequence is located,
+ * after the initial backslash. On output, it is advanced after the
+ * last character parsed. On error, it is not advanced at all.
+ * @return the character represented by the escape sequence at
+ * offset, or (UChar32)0xFFFFFFFF on error.
+ * @see UnicodeString#unescape()
+ * @see u_unescape()
+ * @see u_unescapeAt()
+ * @stable ICU 2.0
+ */
+ UChar32 unescapeAt(int32_t &offset) const;
+
+ /**
+ * ICU "poor man's RTTI", returns a UClassID for this class.
+ *
+ * @stable ICU 2.2
+ */
+ static UClassID U_EXPORT2 getStaticClassID();
+
+ /**
+ * ICU "poor man's RTTI", returns a UClassID for the actual class.
+ *
+ * @stable ICU 2.2
+ */
+ virtual UClassID getDynamicClassID() const;
+
+ //========================================
+ // Implementation methods
+ //========================================
+
+protected:
+ /**
+ * Implement Replaceable::getLength() (see jitterbug 1027).
+ * @stable ICU 2.4
+ */
+ virtual int32_t getLength() const;
+
+ /**
+ * The change in Replaceable to use virtual getCharAt() allows
+ * UnicodeString::charAt() to be inline again (see jitterbug 709).
+ * @stable ICU 2.4
+ */
+ virtual UChar getCharAt(int32_t offset) const;
+
+ /**
+ * The change in Replaceable to use virtual getChar32At() allows
+ * UnicodeString::char32At() to be inline again (see jitterbug 709).
+ * @stable ICU 2.4
+ */
+ virtual UChar32 getChar32At(int32_t offset) const;
+
+private:
+
+ inline int8_t
+ doCompare(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ int8_t doCompare(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ inline int8_t
+ doCompareCodePointOrder(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ int8_t doCompareCodePointOrder(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const;
+
+ inline int8_t
+ doCaseCompare(int32_t start,
+ int32_t length,
+ const UnicodeString &srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const;
+
+ int8_t
+ doCaseCompare(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const;
+
+ int32_t doIndexOf(UChar c,
+ int32_t start,
+ int32_t length) const;
+
+ int32_t doIndexOf(UChar32 c,
+ int32_t start,
+ int32_t length) const;
+
+ int32_t doLastIndexOf(UChar c,
+ int32_t start,
+ int32_t length) const;
+
+ int32_t doLastIndexOf(UChar32 c,
+ int32_t start,
+ int32_t length) const;
+
+ void doExtract(int32_t start,
+ int32_t length,
+ UChar *dst,
+ int32_t dstStart) const;
+
+ inline void doExtract(int32_t start,
+ int32_t length,
+ UnicodeString& target) const;
+
+ inline UChar doCharAt(int32_t offset) const;
+
+ UnicodeString& doReplace(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ UnicodeString& doReplace(int32_t start,
+ int32_t length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength);
+
+ UnicodeString& doReverse(int32_t start,
+ int32_t length);
+
+ // calculate hash code
+ int32_t doHashCode(void) const;
+
+ // get pointer to start of array
+ inline UChar* getArrayStart(void);
+ inline const UChar* getArrayStart(void) const;
+
+ // allocate the array; result may be fStackBuffer
+ // sets refCount to 1 if appropriate
+ // sets fArray, fCapacity, and fFlags
+ // returns boolean for success or failure
+ UBool allocate(int32_t capacity);
+
+ // release the array if owned
+ void releaseArray(void);
+
+ // turn a bogus string into an empty one
+ void unBogus();
+
+ // implements assigment operator, copy constructor, and fastCopyFrom()
+ UnicodeString ©From(const UnicodeString &src, UBool fastCopy=FALSE);
+
+ // Pin start and limit to acceptable values.
+ inline void pinIndex(int32_t& start) const;
+ inline void pinIndices(int32_t& start,
+ int32_t& length) const;
+
+#if !UCONFIG_NO_CONVERSION
+
+ /* Internal extract() using UConverter. */
+ int32_t doExtract(int32_t start, int32_t length,
+ char *dest, int32_t destCapacity,
+ UConverter *cnv,
+ UErrorCode &errorCode) const;
+
+ /*
+ * Real constructor for converting from codepage data.
+ * It assumes that it is called with !fRefCounted.
+ *
+ * If <code>codepage==0</code>, then the default converter
+ * is used for the platform encoding.
+ * If <code>codepage</code> is an empty string (<code>""</code>),
+ * then a simple conversion is performed on the codepage-invariant
+ * subset ("invariant characters") of the platform encoding. See utypes.h.
+ */
+ void doCodepageCreate(const char *codepageData,
+ int32_t dataLength,
+ const char *codepage);
+
+ /*
+ * Worker function for creating a UnicodeString from
+ * a codepage string using a UConverter.
+ */
+ void
+ doCodepageCreate(const char *codepageData,
+ int32_t dataLength,
+ UConverter *converter,
+ UErrorCode &status);
+
+#endif
+
+ /*
+ * This function is called when write access to the array
+ * is necessary.
+ *
+ * We need to make a copy of the array if
+ * the buffer is read-only, or
+ * the buffer is refCounted (shared), and refCount>1, or
+ * the buffer is too small.
+ *
+ * Return FALSE if memory could not be allocated.
+ */
+ UBool cloneArrayIfNeeded(int32_t newCapacity = -1,
+ int32_t growCapacity = -1,
+ UBool doCopyArray = TRUE,
+ int32_t **pBufferToDelete = 0,
+ UBool forceClone = FALSE);
+
+ // common function for case mappings
+ UnicodeString &
+ caseMap(BreakIterator *titleIter,
+ const char *locale,
+ uint32_t options,
+ int32_t toWhichCase);
+
+ // ref counting
+ void addRef(void);
+ int32_t removeRef(void);
+ int32_t refCount(void) const;
+
+ // constants
+ enum {
+ US_STACKBUF_SIZE=7, // Size of stack buffer for small strings
+ kInvalidUChar=0xffff, // invalid UChar index
+ kGrowSize=128, // grow size for this buffer
+ kInvalidHashCode=0, // invalid hash code
+ kEmptyHashCode=1, // hash code for empty string
+
+ // bit flag values for fFlags
+ kIsBogus=1, // this string is bogus, i.e., not valid or NULL
+ kUsingStackBuffer=2,// fArray==fStackBuffer
+ kRefCounted=4, // there is a refCount field before the characters in fArray
+ kBufferIsReadonly=8,// do not write to this buffer
+ kOpenGetBuffer=16, // getBuffer(minCapacity) was called (is "open"),
+ // and releaseBuffer(newLength) must be called
+
+ // combined values for convenience
+ kShortString=kUsingStackBuffer,
+ kLongString=kRefCounted,
+ kReadonlyAlias=kBufferIsReadonly,
+ kWritableAlias=0
+ };
+
+ friend class StringCharacterIterator;
+ friend class StringThreadTest;
+
+ /*
+ * The following are all the class fields that are stored
+ * in each UnicodeString object.
+ * Note that UnicodeString has virtual functions,
+ * therefore there is an implicit vtable pointer
+ * as the first real field.
+ * The fields should be aligned such that no padding is
+ * necessary, mostly by having larger types first.
+ * On 32-bit machines, the size should be 32 bytes,
+ * on 64-bit machines (8-byte pointers), it should be 40 bytes.
+ */
+ // (implicit) *vtable;
+ int32_t fLength; // number of characters in fArray
+ int32_t fCapacity; // sizeof fArray
+ UChar *fArray; // the Unicode data
+ uint16_t fFlags; // bit flags: see constants above
+ UChar fStackBuffer [ US_STACKBUF_SIZE ]; // buffer for small strings
+
+};
+
+/**
+ * Create a new UnicodeString with the concatenation of two others.
+ *
+ * @param s1 The first string to be copied to the new one.
+ * @param s2 The second string to be copied to the new one, after s1.
+ * @return UnicodeString(s1).append(s2)
+ * @stable ICU 2.8
+ */
+U_COMMON_API UnicodeString U_EXPORT2
+operator+ (const UnicodeString &s1, const UnicodeString &s2);
+
+U_NAMESPACE_END
+
+// inline implementations -------------------------------------------------- ***
+
+//========================================
+// Array copying
+//========================================
+/**
+ * Copy an array of UnicodeString OBJECTS (not pointers).
+ * @internal
+ */
+inline void
+uprv_arrayCopy(const U_NAMESPACE_QUALIFIER UnicodeString *src, U_NAMESPACE_QUALIFIER UnicodeString *dst, int32_t count)
+{ while(count-- > 0) *dst++ = *src++; }
+
+/**
+ * Copy an array of UnicodeString OBJECTS (not pointers).
+ * @internal
+ */
+inline void
+uprv_arrayCopy(const U_NAMESPACE_QUALIFIER UnicodeString *src, int32_t srcStart,
+ U_NAMESPACE_QUALIFIER UnicodeString *dst, int32_t dstStart, int32_t count)
+{ uprv_arrayCopy(src+srcStart, dst+dstStart, count); }
+
+U_NAMESPACE_BEGIN
+
+//========================================
+// Inline members
+//========================================
+
+//========================================
+// Privates
+//========================================
+
+inline void
+UnicodeString::pinIndex(int32_t& start) const
+{
+ // pin index
+ if(start < 0) {
+ start = 0;
+ } else if(start > fLength) {
+ start = fLength;
+ }
+}
+
+inline void
+UnicodeString::pinIndices(int32_t& start,
+ int32_t& _length) const
+{
+ // pin indices
+ if(start < 0) {
+ start = 0;
+ } else if(start > fLength) {
+ start = fLength;
+ }
+ if(_length < 0) {
+ _length = 0;
+ } else if(_length > (fLength - start)) {
+ _length = (fLength - start);
+ }
+}
+
+inline UChar*
+UnicodeString::getArrayStart()
+{ return fArray; }
+
+inline const UChar*
+UnicodeString::getArrayStart() const
+{ return fArray; }
+
+//========================================
+// Read-only implementation methods
+//========================================
+inline int32_t
+UnicodeString::length() const
+{ return fLength; }
+
+inline int32_t
+UnicodeString::getCapacity() const
+{ return fCapacity; }
+
+inline int32_t
+UnicodeString::hashCode() const
+{ return doHashCode(); }
+
+inline UBool
+UnicodeString::isBogus() const
+{ return (UBool)(fFlags & kIsBogus); }
+
+inline const UChar *
+UnicodeString::getBuffer() const {
+ if(!(fFlags&(kIsBogus|kOpenGetBuffer))) {
+ return fArray;
+ } else {
+ return 0;
+ }
+}
+
+//========================================
+// Read-only alias methods
+//========================================
+inline int8_t
+UnicodeString::doCompare(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const
+{
+ if(srcText.isBogus()) {
+ return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+ } else {
+ srcText.pinIndices(srcStart, srcLength);
+ return doCompare(start, length, srcText.fArray, srcStart, srcLength);
+ }
+}
+
+inline UBool
+UnicodeString::operator== (const UnicodeString& text) const
+{
+ if(isBogus()) {
+ return text.isBogus();
+ } else {
+ return
+ !text.isBogus() &&
+ fLength == text.fLength &&
+ doCompare(0, fLength, text, 0, text.fLength) == 0;
+ }
+}
+
+inline UBool
+UnicodeString::operator!= (const UnicodeString& text) const
+{ return (! operator==(text)); }
+
+inline UBool
+UnicodeString::operator> (const UnicodeString& text) const
+{ return doCompare(0, fLength, text, 0, text.fLength) == 1; }
+
+inline UBool
+UnicodeString::operator< (const UnicodeString& text) const
+{ return doCompare(0, fLength, text, 0, text.fLength) == -1; }
+
+inline UBool
+UnicodeString::operator>= (const UnicodeString& text) const
+{ return doCompare(0, fLength, text, 0, text.fLength) != -1; }
+
+inline UBool
+UnicodeString::operator<= (const UnicodeString& text) const
+{ return doCompare(0, fLength, text, 0, text.fLength) != 1; }
+
+inline int8_t
+UnicodeString::compare(const UnicodeString& text) const
+{ return doCompare(0, fLength, text, 0, text.fLength); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText) const
+{ return doCompare(start, _length, srcText, 0, srcText.fLength); }
+
+inline int8_t
+UnicodeString::compare(const UChar *srcChars,
+ int32_t srcLength) const
+{ return doCompare(0, fLength, srcChars, 0, srcLength); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompare(start, _length, srcText, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+ int32_t _length,
+ const UChar *srcChars) const
+{ return doCompare(start, _length, srcChars, 0, _length); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompare(start, _length, srcChars, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit) const
+{ return doCompare(start, limit - start,
+ srcText, srcStart, srcLimit - srcStart); }
+
+inline int8_t
+UnicodeString::doCompareCodePointOrder(int32_t start,
+ int32_t length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const
+{
+ if(srcText.isBogus()) {
+ return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+ } else {
+ srcText.pinIndices(srcStart, srcLength);
+ return doCompareCodePointOrder(start, length, srcText.fArray, srcStart, srcLength);
+ }
+}
+
+inline int8_t
+UnicodeString::compareCodePointOrder(const UnicodeString& text) const
+{ return doCompareCodePointOrder(0, fLength, text, 0, text.fLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText) const
+{ return doCompareCodePointOrder(start, _length, srcText, 0, srcText.fLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(const UChar *srcChars,
+ int32_t srcLength) const
+{ return doCompareCodePointOrder(0, fLength, srcChars, 0, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompareCodePointOrder(start, _length, srcText, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+ int32_t _length,
+ const UChar *srcChars) const
+{ return doCompareCodePointOrder(start, _length, srcChars, 0, _length); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompareCodePointOrder(start, _length, srcChars, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrderBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit) const
+{ return doCompareCodePointOrder(start, limit - start,
+ srcText, srcStart, srcLimit - srcStart); }
+
+inline int8_t
+UnicodeString::doCaseCompare(int32_t start,
+ int32_t length,
+ const UnicodeString &srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const
+{
+ if(srcText.isBogus()) {
+ return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+ } else {
+ srcText.pinIndices(srcStart, srcLength);
+ return doCaseCompare(start, length, srcText.fArray, srcStart, srcLength, options);
+ }
+}
+
+inline int8_t
+UnicodeString::caseCompare(const UnicodeString &text, uint32_t options) const {
+ return doCaseCompare(0, fLength, text, 0, text.fLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+ int32_t _length,
+ const UnicodeString &srcText,
+ uint32_t options) const {
+ return doCaseCompare(start, _length, srcText, 0, srcText.fLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(const UChar *srcChars,
+ int32_t srcLength,
+ uint32_t options) const {
+ return doCaseCompare(0, fLength, srcChars, 0, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+ int32_t _length,
+ const UnicodeString &srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const {
+ return doCaseCompare(start, _length, srcText, srcStart, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ uint32_t options) const {
+ return doCaseCompare(start, _length, srcChars, 0, _length, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength,
+ uint32_t options) const {
+ return doCaseCompare(start, _length, srcChars, srcStart, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompareBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString &srcText,
+ int32_t srcStart,
+ int32_t srcLimit,
+ uint32_t options) const {
+ return doCaseCompare(start, limit - start, srcText, srcStart, srcLimit - srcStart, options);
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t _length) const
+{
+ if(!srcText.isBogus()) {
+ srcText.pinIndices(srcStart, srcLength);
+ if(srcLength > 0) {
+ return indexOf(srcText.getArrayStart(), srcStart, srcLength, start, _length);
+ }
+ }
+ return -1;
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text) const
+{ return indexOf(text, 0, text.fLength, 0, fLength); }
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text,
+ int32_t start) const {
+ pinIndex(start);
+ return indexOf(text, 0, text.fLength, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text,
+ int32_t start,
+ int32_t _length) const
+{ return indexOf(text, 0, text.fLength, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start) const {
+ pinIndex(start);
+ return indexOf(srcChars, 0, srcLength, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start,
+ int32_t _length) const
+{ return indexOf(srcChars, 0, srcLength, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(UChar c,
+ int32_t start,
+ int32_t _length) const
+{ return doIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c,
+ int32_t start,
+ int32_t _length) const
+{ return doIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(UChar c) const
+{ return doIndexOf(c, 0, fLength); }
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c) const
+{ return indexOf(c, 0, fLength); }
+
+inline int32_t
+UnicodeString::indexOf(UChar c,
+ int32_t start) const {
+ pinIndex(start);
+ return doIndexOf(c, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c,
+ int32_t start) const {
+ pinIndex(start);
+ return indexOf(c, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start,
+ int32_t _length) const
+{ return lastIndexOf(srcChars, 0, srcLength, start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(const UChar *srcChars,
+ int32_t srcLength,
+ int32_t start) const {
+ pinIndex(start);
+ return lastIndexOf(srcChars, 0, srcLength, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength,
+ int32_t start,
+ int32_t _length) const
+{
+ if(!srcText.isBogus()) {
+ srcText.pinIndices(srcStart, srcLength);
+ if(srcLength > 0) {
+ return lastIndexOf(srcText.getArrayStart(), srcStart, srcLength, start, _length);
+ }
+ }
+ return -1;
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text,
+ int32_t start,
+ int32_t _length) const
+{ return lastIndexOf(text, 0, text.fLength, start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text,
+ int32_t start) const {
+ pinIndex(start);
+ return lastIndexOf(text, 0, text.fLength, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text) const
+{ return lastIndexOf(text, 0, text.fLength, 0, fLength); }
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar c,
+ int32_t start,
+ int32_t _length) const
+{ return doLastIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c,
+ int32_t start,
+ int32_t _length) const {
+ return doLastIndexOf(c, start, _length);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar c) const
+{ return doLastIndexOf(c, 0, fLength); }
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c) const {
+ return lastIndexOf(c, 0, fLength);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar c,
+ int32_t start) const {
+ pinIndex(start);
+ return doLastIndexOf(c, start, fLength - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c,
+ int32_t start) const {
+ pinIndex(start);
+ return lastIndexOf(c, start, fLength - start);
+}
+
+inline UBool
+UnicodeString::startsWith(const UnicodeString& text) const
+{ return compare(0, text.fLength, text, 0, text.fLength) == 0; }
+
+inline UBool
+UnicodeString::startsWith(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompare(0, srcLength, srcText, srcStart, srcLength) == 0; }
+
+inline UBool
+UnicodeString::startsWith(const UChar *srcChars,
+ int32_t srcLength) const
+{ return doCompare(0, srcLength, srcChars, 0, srcLength) == 0; }
+
+inline UBool
+UnicodeString::startsWith(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const
+{ return doCompare(0, srcLength, srcChars, srcStart, srcLength) == 0;}
+
+inline UBool
+UnicodeString::endsWith(const UnicodeString& text) const
+{ return doCompare(fLength - text.fLength, text.fLength,
+ text, 0, text.fLength) == 0; }
+
+inline UBool
+UnicodeString::endsWith(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength) const {
+ srcText.pinIndices(srcStart, srcLength);
+ return doCompare(fLength - srcLength, srcLength,
+ srcText, srcStart, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::endsWith(const UChar *srcChars,
+ int32_t srcLength) const {
+ if(srcLength < 0) {
+ srcLength = u_strlen(srcChars);
+ }
+ return doCompare(fLength - srcLength, srcLength,
+ srcChars, 0, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::endsWith(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength) const {
+ if(srcLength < 0) {
+ srcLength = u_strlen(srcChars + srcStart);
+ }
+ return doCompare(fLength - srcLength, srcLength,
+ srcChars, srcStart, srcLength) == 0;
+}
+
+//========================================
+// replace
+//========================================
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText)
+{ return doReplace(start, _length, srcText, 0, srcText.fLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(start, _length, srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ int32_t srcLength)
+{ return doReplace(start, _length, srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(start, _length, srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ UChar srcChar)
+{ return doReplace(start, _length, &srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+ int32_t _length,
+ UChar32 srcChar) {
+ UChar buffer[U16_MAX_LENGTH];
+ int32_t count = 0;
+ UBool isError = FALSE;
+ U16_APPEND(buffer, count, U16_MAX_LENGTH, srcChar, isError);
+ return doReplace(start, _length, buffer, 0, count);
+}
+
+inline UnicodeString&
+UnicodeString::replaceBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText)
+{ return doReplace(start, limit - start, srcText, 0, srcText.fLength); }
+
+inline UnicodeString&
+UnicodeString::replaceBetween(int32_t start,
+ int32_t limit,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLimit)
+{ return doReplace(start, limit - start, srcText, srcStart, srcLimit - srcStart); }
+
+inline UnicodeString&
+UnicodeString::findAndReplace(const UnicodeString& oldText,
+ const UnicodeString& newText)
+{ return findAndReplace(0, fLength, oldText, 0, oldText.fLength,
+ newText, 0, newText.fLength); }
+
+inline UnicodeString&
+UnicodeString::findAndReplace(int32_t start,
+ int32_t _length,
+ const UnicodeString& oldText,
+ const UnicodeString& newText)
+{ return findAndReplace(start, _length, oldText, 0, oldText.fLength,
+ newText, 0, newText.fLength); }
+
+// ============================
+// extract
+// ============================
+inline void
+UnicodeString::doExtract(int32_t start,
+ int32_t _length,
+ UnicodeString& target) const
+{ target.replace(0, target.fLength, *this, start, _length); }
+
+inline void
+UnicodeString::extract(int32_t start,
+ int32_t _length,
+ UChar *target,
+ int32_t targetStart) const
+{ doExtract(start, _length, target, targetStart); }
+
+inline void
+UnicodeString::extract(int32_t start,
+ int32_t _length,
+ UnicodeString& target) const
+{ doExtract(start, _length, target); }
+
+#if !UCONFIG_NO_CONVERSION
+
+inline int32_t
+UnicodeString::extract(int32_t start,
+ int32_t _length,
+ char *dst,
+ const char *codepage) const
+
+{
+ // This dstSize value will be checked explicitly
+ return extract(start, _length, dst, dst!=0 ? 0xffffffff : 0, codepage);
+}
+
+#endif
+
+inline void
+UnicodeString::extractBetween(int32_t start,
+ int32_t limit,
+ UChar *dst,
+ int32_t dstStart) const {
+ pinIndex(start);
+ pinIndex(limit);
+ doExtract(start, limit - start, dst, dstStart);
+}
+
+inline UChar
+UnicodeString::doCharAt(int32_t offset) const
+{
+ if((uint32_t)offset < (uint32_t)fLength) {
+ return fArray[offset];
+ } else {
+ return kInvalidUChar;
+ }
+}
+
+inline UChar
+UnicodeString::charAt(int32_t offset) const
+{ return doCharAt(offset); }
+
+inline UChar
+UnicodeString::operator[] (int32_t offset) const
+{ return doCharAt(offset); }
+
+inline UChar32
+UnicodeString::char32At(int32_t offset) const
+{
+ if((uint32_t)offset < (uint32_t)fLength) {
+ UChar32 c;
+ U16_GET(fArray, 0, offset, fLength, c);
+ return c;
+ } else {
+ return kInvalidUChar;
+ }
+}
+
+inline int32_t
+UnicodeString::getChar32Start(int32_t offset) const {
+ if((uint32_t)offset < (uint32_t)fLength) {
+ U16_SET_CP_START(fArray, 0, offset);
+ return offset;
+ } else {
+ return 0;
+ }
+}
+
+inline int32_t
+UnicodeString::getChar32Limit(int32_t offset) const {
+ if((uint32_t)offset < (uint32_t)fLength) {
+ U16_SET_CP_LIMIT(fArray, 0, offset, fLength);
+ return offset;
+ } else {
+ return fLength;
+ }
+}
+
+inline UBool
+UnicodeString::isEmpty() const {
+ return fLength == 0;
+}
+
+//========================================
+// Write implementation methods
+//========================================
+inline const UChar *
+UnicodeString::getTerminatedBuffer() {
+ if(fFlags&(kIsBogus|kOpenGetBuffer)) {
+ return 0;
+ } else if(fLength<fCapacity && fArray[fLength]==0) {
+ return fArray;
+ } else if(cloneArrayIfNeeded(fLength+1)) {
+ fArray[fLength]=0;
+ return fArray;
+ } else {
+ return 0;
+ }
+}
+
+inline UnicodeString&
+UnicodeString::operator= (UChar ch)
+{ return doReplace(0, fLength, &ch, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::operator= (UChar32 ch)
+{ return replace(0, fLength, ch); }
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength)
+{
+ unBogus();
+ return doReplace(0, fLength, srcText, srcStart, srcLength);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText,
+ int32_t srcStart)
+{
+ unBogus();
+ srcText.pinIndex(srcStart);
+ return doReplace(0, fLength, srcText, srcStart, srcText.fLength - srcStart);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText)
+{
+ unBogus();
+ return doReplace(0, fLength, srcText, 0, srcText.fLength);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const UChar *srcChars,
+ int32_t srcLength)
+{
+ unBogus();
+ return doReplace(0, fLength, srcChars, 0, srcLength);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(UChar srcChar)
+{
+ unBogus();
+ return doReplace(0, fLength, &srcChar, 0, 1);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(UChar32 srcChar)
+{
+ unBogus();
+ return replace(0, fLength, srcChar);
+}
+
+inline UnicodeString&
+UnicodeString::operator+= (UChar ch)
+{ return doReplace(fLength, 0, &ch, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::operator+= (UChar32 ch) {
+ UChar buffer[U16_MAX_LENGTH];
+ int32_t _length = 0;
+ UBool isError = FALSE;
+ U16_APPEND(buffer, _length, U16_MAX_LENGTH, ch, isError);
+ return doReplace(fLength, 0, buffer, 0, _length);
+}
+
+inline UnicodeString&
+UnicodeString::operator+= (const UnicodeString& srcText)
+{ return doReplace(fLength, 0, srcText, 0, srcText.fLength); }
+
+inline UnicodeString&
+UnicodeString::append(const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(fLength, 0, srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(const UnicodeString& srcText)
+{ return doReplace(fLength, 0, srcText, 0, srcText.fLength); }
+
+inline UnicodeString&
+UnicodeString::append(const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(fLength, 0, srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(const UChar *srcChars,
+ int32_t srcLength)
+{ return doReplace(fLength, 0, srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(UChar srcChar)
+{ return doReplace(fLength, 0, &srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::append(UChar32 srcChar) {
+ UChar buffer[U16_MAX_LENGTH];
+ int32_t _length = 0;
+ UBool isError = FALSE;
+ U16_APPEND(buffer, _length, U16_MAX_LENGTH, srcChar, isError);
+ return doReplace(fLength, 0, buffer, 0, _length);
+}
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ const UnicodeString& srcText,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(start, 0, srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ const UnicodeString& srcText)
+{ return doReplace(start, 0, srcText, 0, srcText.fLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ const UChar *srcChars,
+ int32_t srcStart,
+ int32_t srcLength)
+{ return doReplace(start, 0, srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ const UChar *srcChars,
+ int32_t srcLength)
+{ return doReplace(start, 0, srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ UChar srcChar)
+{ return doReplace(start, 0, &srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+ UChar32 srcChar)
+{ return replace(start, 0, srcChar); }
+
+
+inline UnicodeString&
+UnicodeString::remove()
+{
+ // remove() of a bogus string makes the string empty and non-bogus
+ if(isBogus()) {
+ unBogus();
+ } else {
+ fLength = 0;
+ }
+ return *this;
+}
+
+inline UnicodeString&
+UnicodeString::remove(int32_t start,
+ int32_t _length)
+{
+ if(start <= 0 && _length == INT32_MAX) {
+ // remove(guaranteed everything) of a bogus string makes the string empty and non-bogus
+ return remove();
+ } else {
+ return doReplace(start, _length, NULL, 0, 0);
+ }
+}
+
+inline UnicodeString&
+UnicodeString::removeBetween(int32_t start,
+ int32_t limit)
+{ return doReplace(start, limit - start, NULL, 0, 0); }
+
+inline UBool
+UnicodeString::truncate(int32_t targetLength)
+{
+ if(isBogus() && targetLength == 0) {
+ // truncate(0) of a bogus string makes the string empty and non-bogus
+ unBogus();
+ return FALSE;
+ } else if((uint32_t)targetLength < (uint32_t)fLength) {
+ fLength = targetLength;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+inline UnicodeString&
+UnicodeString::reverse()
+{ return doReverse(0, fLength); }
+
+inline UnicodeString&
+UnicodeString::reverse(int32_t start,
+ int32_t _length)
+{ return doReverse(start, _length); }
+
+U_NAMESPACE_END
+
+#endif