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From beno...@apache.org
Subject [12/57] [abbrv] remove couch_collate
Date Thu, 13 Feb 2014 18:12:10 GMT
http://git-wip-us.apache.org/repos/asf/couchdb/blob/81332b78/apps/couch_collate/platform/osx/icu/unicode/uniset.h
----------------------------------------------------------------------
diff --git a/apps/couch_collate/platform/osx/icu/unicode/uniset.h b/apps/couch_collate/platform/osx/icu/unicode/uniset.h
deleted file mode 100644
index 7839661..0000000
--- a/apps/couch_collate/platform/osx/icu/unicode/uniset.h
+++ /dev/null
@@ -1,1566 +0,0 @@
-/*
-***************************************************************************
-* Copyright (C) 1999-2008, International Business Machines Corporation
-* and others. All Rights Reserved.
-***************************************************************************
-*   Date        Name        Description
-*   10/20/99    alan        Creation.
-***************************************************************************
-*/
-
-#ifndef UNICODESET_H
-#define UNICODESET_H
-
-#include "unicode/unifilt.h"
-#include "unicode/unistr.h"
-#include "unicode/uset.h"
-
-/**
- * \file
- * \brief C++ API: Unicode Set
- */
-
-U_NAMESPACE_BEGIN
-
-class BMPSet;
-class ParsePosition;
-class SymbolTable;
-class UnicodeSetStringSpan;
-class UVector;
-class RuleCharacterIterator;
-
-/**
- * A mutable set of Unicode characters and multicharacter strings.  Objects of this class
- * represent <em>character classes</em> used in regular expressions.
- * A character specifies a subset of Unicode code points.  Legal
- * code points are U+0000 to U+10FFFF, inclusive.
- *
- * <p>The UnicodeSet class is not designed to be subclassed.
- *
- * <p><code>UnicodeSet</code> supports two APIs. The first is the
- * <em>operand</em> API that allows the caller to modify the value of
- * a <code>UnicodeSet</code> object. It conforms to Java 2's
- * <code>java.util.Set</code> interface, although
- * <code>UnicodeSet</code> does not actually implement that
- * interface. All methods of <code>Set</code> are supported, with the
- * modification that they take a character range or single character
- * instead of an <code>Object</code>, and they take a
- * <code>UnicodeSet</code> instead of a <code>Collection</code>.  The
- * operand API may be thought of in terms of boolean logic: a boolean
- * OR is implemented by <code>add</code>, a boolean AND is implemented
- * by <code>retain</code>, a boolean XOR is implemented by
- * <code>complement</code> taking an argument, and a boolean NOT is
- * implemented by <code>complement</code> with no argument.  In terms
- * of traditional set theory function names, <code>add</code> is a
- * union, <code>retain</code> is an intersection, <code>remove</code>
- * is an asymmetric difference, and <code>complement</code> with no
- * argument is a set complement with respect to the superset range
- * <code>MIN_VALUE-MAX_VALUE</code>
- *
- * <p>The second API is the
- * <code>applyPattern()</code>/<code>toPattern()</code> API from the
- * <code>java.text.Format</code>-derived classes.  Unlike the
- * methods that add characters, add categories, and control the logic
- * of the set, the method <code>applyPattern()</code> sets all
- * attributes of a <code>UnicodeSet</code> at once, based on a
- * string pattern.
- *
- * <p><b>Pattern syntax</b></p>
- *
- * Patterns are accepted by the constructors and the
- * <code>applyPattern()</code> methods and returned by the
- * <code>toPattern()</code> method.  These patterns follow a syntax
- * similar to that employed by version 8 regular expression character
- * classes.  Here are some simple examples:
- *
- * \htmlonly<blockquote>\endhtmlonly
- *   <table>
- *     <tr align="top">
- *       <td nowrap valign="top" align="left"><code>[]</code></td>
- *       <td valign="top">No characters</td>
- *     </tr><tr align="top">
- *       <td nowrap valign="top" align="left"><code>[a]</code></td>
- *       <td valign="top">The character 'a'</td>
- *     </tr><tr align="top">
- *       <td nowrap valign="top" align="left"><code>[ae]</code></td>
- *       <td valign="top">The characters 'a' and 'e'</td>
- *     </tr>
- *     <tr>
- *       <td nowrap valign="top" align="left"><code>[a-e]</code></td>
- *       <td valign="top">The characters 'a' through 'e' inclusive, in Unicode code
- *       point order</td>
- *     </tr>
- *     <tr>
- *       <td nowrap valign="top" align="left"><code>[\\u4E01]</code></td>
- *       <td valign="top">The character U+4E01</td>
- *     </tr>
- *     <tr>
- *       <td nowrap valign="top" align="left"><code>[a{ab}{ac}]</code></td>
- *       <td valign="top">The character 'a' and the multicharacter strings &quot;ab&quot; and
- *       &quot;ac&quot;</td>
- *     </tr>
- *     <tr>
- *       <td nowrap valign="top" align="left"><code>[\\p{Lu}]</code></td>
- *       <td valign="top">All characters in the general category Uppercase Letter</td>
- *     </tr>
- *   </table>
- * \htmlonly</blockquote>\endhtmlonly
- *
- * Any character may be preceded by a backslash in order to remove any special
- * meaning.  White space characters, as defined by UCharacter.isWhitespace(), are
- * ignored, unless they are escaped.
- *
- * <p>Property patterns specify a set of characters having a certain
- * property as defined by the Unicode standard.  Both the POSIX-like
- * "[:Lu:]" and the Perl-like syntax "\\p{Lu}" are recognized.  For a
- * complete list of supported property patterns, see the User's Guide
- * for UnicodeSet at
- * <a href="http://icu-project.org/userguide/unicodeSet.html">
- * http://icu-project.org/userguide/unicodeSet.html</a>.
- * Actual determination of property data is defined by the underlying
- * Unicode database as implemented by UCharacter.
- *
- * <p>Patterns specify individual characters, ranges of characters, and
- * Unicode property sets.  When elements are concatenated, they
- * specify their union.  To complement a set, place a '^' immediately
- * after the opening '['.  Property patterns are inverted by modifying
- * their delimiters; "[:^foo]" and "\\P{foo}".  In any other location,
- * '^' has no special meaning.
- *
- * <p>Ranges are indicated by placing two a '-' between two
- * characters, as in "a-z".  This specifies the range of all
- * characters from the left to the right, in Unicode order.  If the
- * left character is greater than or equal to the
- * right character it is a syntax error.  If a '-' occurs as the first
- * character after the opening '[' or '[^', or if it occurs as the
- * last character before the closing ']', then it is taken as a
- * literal.  Thus "[a\-b]", "[-ab]", and "[ab-]" all indicate the same
- * set of three characters, 'a', 'b', and '-'.
- *
- * <p>Sets may be intersected using the '&' operator or the asymmetric
- * set difference may be taken using the '-' operator, for example,
- * "[[:L:]&[\\u0000-\\u0FFF]]" indicates the set of all Unicode letters
- * with values less than 4096.  Operators ('&' and '|') have equal
- * precedence and bind left-to-right.  Thus
- * "[[:L:]-[a-z]-[\\u0100-\\u01FF]]" is equivalent to
- * "[[[:L:]-[a-z]]-[\\u0100-\\u01FF]]".  This only really matters for
- * difference; intersection is commutative.
- *
- * <table>
- * <tr valign=top><td nowrap><code>[a]</code><td>The set containing 'a'
- * <tr valign=top><td nowrap><code>[a-z]</code><td>The set containing 'a'
- * through 'z' and all letters in between, in Unicode order
- * <tr valign=top><td nowrap><code>[^a-z]</code><td>The set containing
- * all characters but 'a' through 'z',
- * that is, U+0000 through 'a'-1 and 'z'+1 through U+10FFFF
- * <tr valign=top><td nowrap><code>[[<em>pat1</em>][<em>pat2</em>]]</code>
- * <td>The union of sets specified by <em>pat1</em> and <em>pat2</em>
- * <tr valign=top><td nowrap><code>[[<em>pat1</em>]&[<em>pat2</em>]]</code>
- * <td>The intersection of sets specified by <em>pat1</em> and <em>pat2</em>
- * <tr valign=top><td nowrap><code>[[<em>pat1</em>]-[<em>pat2</em>]]</code>
- * <td>The asymmetric difference of sets specified by <em>pat1</em> and
- * <em>pat2</em>
- * <tr valign=top><td nowrap><code>[:Lu:] or \\p{Lu}</code>
- * <td>The set of characters having the specified
- * Unicode property; in
- * this case, Unicode uppercase letters
- * <tr valign=top><td nowrap><code>[:^Lu:] or \\P{Lu}</code>
- * <td>The set of characters <em>not</em> having the given
- * Unicode property
- * </table>
- *
- * <p><b>Warning</b>: you cannot add an empty string ("") to a UnicodeSet.</p>
- *
- * <p><b>Formal syntax</b></p>
- *
- * \htmlonly<blockquote>\endhtmlonly
- *   <table>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>pattern :=&nbsp; </code></td>
- *       <td valign="top"><code>('[' '^'? item* ']') |
- *       property</code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>item :=&nbsp; </code></td>
- *       <td valign="top"><code>char | (char '-' char) | pattern-expr<br>
- *       </code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>pattern-expr :=&nbsp; </code></td>
- *       <td valign="top"><code>pattern | pattern-expr pattern |
- *       pattern-expr op pattern<br>
- *       </code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>op :=&nbsp; </code></td>
- *       <td valign="top"><code>'&amp;' | '-'<br>
- *       </code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>special :=&nbsp; </code></td>
- *       <td valign="top"><code>'[' | ']' | '-'<br>
- *       </code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>char :=&nbsp; </code></td>
- *       <td valign="top"><em>any character that is not</em><code> special<br>
- *       | ('\' </code><em>any character</em><code>)<br>
- *       | ('\\u' hex hex hex hex)<br>
- *       </code></td>
- *     </tr>
- *     <tr align="top">
- *       <td nowrap valign="top" align="right"><code>hex :=&nbsp; </code></td>
- *       <td valign="top"><em>any character for which
- *       </em><code>Character.digit(c, 16)</code><em>
- *       returns a non-negative result</em></td>
- *     </tr>
- *     <tr>
- *       <td nowrap valign="top" align="right"><code>property :=&nbsp; </code></td>
- *       <td valign="top"><em>a Unicode property set pattern</em></td>
- *     </tr>
- *   </table>
- *   <br>
- *   <table border="1">
- *     <tr>
- *       <td>Legend: <table>
- *         <tr>
- *           <td nowrap valign="top"><code>a := b</code></td>
- *           <td width="20" valign="top">&nbsp; </td>
- *           <td valign="top"><code>a</code> may be replaced by <code>b</code> </td>
- *         </tr>
- *         <tr>
- *           <td nowrap valign="top"><code>a?</code></td>
- *           <td valign="top"></td>
- *           <td valign="top">zero or one instance of <code>a</code><br>
- *           </td>
- *         </tr>
- *         <tr>
- *           <td nowrap valign="top"><code>a*</code></td>
- *           <td valign="top"></td>
- *           <td valign="top">one or more instances of <code>a</code><br>
- *           </td>
- *         </tr>
- *         <tr>
- *           <td nowrap valign="top"><code>a | b</code></td>
- *           <td valign="top"></td>
- *           <td valign="top">either <code>a</code> or <code>b</code><br>
- *           </td>
- *         </tr>
- *         <tr>
- *           <td nowrap valign="top"><code>'a'</code></td>
- *           <td valign="top"></td>
- *           <td valign="top">the literal string between the quotes </td>
- *         </tr>
- *       </table>
- *       </td>
- *     </tr>
- *   </table>
- * \htmlonly</blockquote>\endhtmlonly
- * 
- * <p>Note:
- *  - Most UnicodeSet 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 UnicodeSet into a "bogus" state
- *   (see isBogus()) if an error occurs.
- *
- * @author Alan Liu
- * @stable ICU 2.0
- */
-class U_COMMON_API UnicodeSet : public UnicodeFilter {
-
-    int32_t len; // length of list used; 0 <= len <= capacity
-    int32_t capacity; // capacity of list
-    UChar32* list; // MUST be terminated with HIGH
-    BMPSet *bmpSet; // The set is frozen iff either bmpSet or stringSpan is not NULL.
-    UChar32* buffer; // internal buffer, may be NULL
-    int32_t bufferCapacity; // capacity of buffer
-    int32_t patLen;
-
-    /**
-     * The pattern representation of this set.  This may not be the
-     * most economical pattern.  It is the pattern supplied to
-     * applyPattern(), with variables substituted and whitespace
-     * removed.  For sets constructed without applyPattern(), or
-     * modified using the non-pattern API, this string will be empty,
-     * indicating that toPattern() must generate a pattern
-     * representation from the inversion list.
-     */
-    UChar *pat;
-    UVector* strings; // maintained in sorted order
-    UnicodeSetStringSpan *stringSpan;
-
-private:
-    enum { // constants
-        kIsBogus = 1       // This set is bogus (i.e. not valid)
-    };
-    uint8_t fFlags;         // Bit flag (see constants above)
-public:
-    /**
-     * Determine if this object contains a valid set.
-     * A bogus set has no value. It is different from an empty set.
-     * It can be used to indicate that no set value is available.
-     *
-     * @return TRUE if the set is valid, FALSE otherwise
-     * @see setToBogus()
-     * @draft ICU 4.0
-     */
-    inline UBool isBogus(void) const;
-    
-    /**
-     * Make this UnicodeSet object invalid.
-     * The string will test TRUE with isBogus().
-     *
-     * A bogus set has no value. It is different from an empty set.
-     * It can be used to indicate that no set value is available.
-     *
-     * This utility function is used throughout the UnicodeSet
-     * implementation to indicate that a UnicodeSet operation failed,
-     * and may be used in other functions,
-     * especially but not exclusively when such functions do not
-     * take a UErrorCode for simplicity.
-     *
-     * @see isBogus()
-     * @draft ICU 4.0
-     */
-    void setToBogus();
-
-public:
-
-    enum {
-        /**
-         * Minimum value that can be stored in a UnicodeSet.
-         * @stable ICU 2.4
-         */
-        MIN_VALUE = 0,
-
-        /**
-         * Maximum value that can be stored in a UnicodeSet.
-         * @stable ICU 2.4
-         */
-        MAX_VALUE = 0x10ffff
-    };
-
-    //----------------------------------------------------------------
-    // Constructors &c
-    //----------------------------------------------------------------
-
-public:
-
-    /**
-     * Constructs an empty set.
-     * @stable ICU 2.0
-     */
-    UnicodeSet();
-
-    /**
-     * Constructs a set containing the given range. If <code>end >
-     * start</code> then an empty set is created.
-     *
-     * @param start first character, inclusive, of range
-     * @param end last character, inclusive, of range
-     * @stable ICU 2.4
-     */
-    UnicodeSet(UChar32 start, UChar32 end);
-
-    /**
-     * Constructs a set from the given pattern.  See the class
-     * description for the syntax of the pattern language.
-     * @param pattern a string specifying what characters are in the set
-     * @param status returns <code>U_ILLEGAL_ARGUMENT_ERROR</code> if the pattern
-     * contains a syntax error.
-     * @stable ICU 2.0
-     */
-    UnicodeSet(const UnicodeString& pattern,
-               UErrorCode& status);
-
-    /**
-     * Constructs a set from the given pattern.  See the class
-     * description for the syntax of the pattern language.
-     * @param pattern a string specifying what characters are in the set
-     * @param options bitmask for options to apply to the pattern.
-     * Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
-     * @param symbols a symbol table mapping variable names to values
-     * and stand-in characters to UnicodeSets; may be NULL
-     * @param status returns <code>U_ILLEGAL_ARGUMENT_ERROR</code> if the pattern
-     * contains a syntax error.
-     * @internal
-     */
-    UnicodeSet(const UnicodeString& pattern,
-               uint32_t options,
-               const SymbolTable* symbols,
-               UErrorCode& status);
-
-    /**
-     * Constructs a set from the given pattern.  See the class description
-     * for the syntax of the pattern language.
-     * @param pattern a string specifying what characters are in the set
-     * @param pos on input, the position in pattern at which to start parsing.
-     * On output, the position after the last character parsed.
-     * @param options bitmask for options to apply to the pattern.
-     * Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
-     * @param symbols a symbol table mapping variable names to values
-     * and stand-in characters to UnicodeSets; may be NULL
-     * @param status input-output error code
-     * @stable ICU 2.8
-     */
-    UnicodeSet(const UnicodeString& pattern, ParsePosition& pos,
-               uint32_t options,
-               const SymbolTable* symbols,
-               UErrorCode& status);
-
-    /**
-     * Constructs a set that is identical to the given UnicodeSet.
-     * @stable ICU 2.0
-     */
-    UnicodeSet(const UnicodeSet& o);
-
-    /**
-     * Destructs the set.
-     * @stable ICU 2.0
-     */
-    virtual ~UnicodeSet();
-
-    /**
-     * Assigns this object to be a copy of another.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    UnicodeSet& operator=(const UnicodeSet& o);
-
-    /**
-     * Compares the specified object with this set for equality.  Returns
-     * <tt>true</tt> if the two sets
-     * have the same size, and every member of the specified set is
-     * contained in this set (or equivalently, every member of this set is
-     * contained in the specified set).
-     *
-     * @param o set to be compared for equality with this set.
-     * @return <tt>true</tt> if the specified set is equal to this set.
-     * @stable ICU 2.0
-     */
-    virtual UBool operator==(const UnicodeSet& o) const;
-
-    /**
-     * Compares the specified object with this set for equality.  Returns
-     * <tt>true</tt> if the specified set is not equal to this set.
-     * @stable ICU 2.0
-     */
-    UBool operator!=(const UnicodeSet& o) const;
-
-    /**
-     * Returns a copy of this object.  All UnicodeFunctor objects have
-     * to support cloning in order to allow classes using
-     * UnicodeFunctors, such as Transliterator, to implement cloning.
-     * If this set is frozen, then the clone will be frozen as well.
-     * Use cloneAsThawed() for a mutable clone of a frozen set.
-     * @see cloneAsThawed
-     * @stable ICU 2.0
-     */
-    virtual UnicodeFunctor* clone() const;
-
-    /**
-     * Returns the hash code value for this set.
-     *
-     * @return the hash code value for this set.
-     * @see Object#hashCode()
-     * @stable ICU 2.0
-     */
-    virtual int32_t hashCode(void) const;
-
-    //----------------------------------------------------------------
-    // Freezable API
-    //----------------------------------------------------------------
-
-    /**
-     * Determines whether the set has been frozen (made immutable) or not.
-     * See the ICU4J Freezable interface for details.
-     * @return TRUE/FALSE for whether the set has been frozen
-     * @see freeze
-     * @see cloneAsThawed
-     * @stable ICU 4.0
-     */
-    inline UBool isFrozen() const;
-
-    /**
-     * Freeze the set (make it immutable).
-     * Once frozen, it cannot be unfrozen and is therefore thread-safe
-     * until it is deleted.
-     * See the ICU4J Freezable interface for details.
-     * Freezing the set may also make some operations faster, for example
-     * contains() and span().
-     * A frozen set will not be modified. (It remains frozen.)
-     * @return this set.
-     * @see isFrozen
-     * @see cloneAsThawed
-     * @stable ICU 4.0
-     */
-    UnicodeFunctor *freeze();
-
-    /**
-     * Clone the set and make the clone mutable.
-     * See the ICU4J Freezable interface for details.
-     * @return the mutable clone
-     * @see freeze
-     * @see isFrozen
-     * @stable ICU 4.0
-     */
-    UnicodeFunctor *cloneAsThawed() const;
-
-    //----------------------------------------------------------------
-    // Public API
-    //----------------------------------------------------------------
-
-    /**
-     * Make this object represent the range <code>start - end</code>.
-     * If <code>end > start</code> then this object is set to an
-     * an empty range.
-     * A frozen set will not be modified.
-     *
-     * @param start first character in the set, inclusive
-     * @param end last character in the set, inclusive
-     * @stable ICU 2.4
-     */
-    UnicodeSet& set(UChar32 start, UChar32 end);
-
-    /**
-     * Return true if the given position, in the given pattern, appears
-     * to be the start of a UnicodeSet pattern.
-     * @stable ICU 2.4
-     */
-    static UBool resemblesPattern(const UnicodeString& pattern,
-                                  int32_t pos);
-
-    /**
-     * Modifies this set to represent the set specified by the given
-     * pattern, optionally ignoring white space.  See the class
-     * description for the syntax of the pattern language.
-     * A frozen set will not be modified.
-     * @param pattern a string specifying what characters are in the set
-     * @param status returns <code>U_ILLEGAL_ARGUMENT_ERROR</code> if the pattern
-     * contains a syntax error.
-     * <em> Empties the set passed before applying the pattern.</em>
-     * @return a reference to this
-     * @stable ICU 2.0
-     */
-    UnicodeSet& applyPattern(const UnicodeString& pattern,
-                             UErrorCode& status);
-
-    /**
-     * Modifies this set to represent the set specified by the given
-     * pattern, optionally ignoring white space.  See the class
-     * description for the syntax of the pattern language.
-     * A frozen set will not be modified.
-     * @param pattern a string specifying what characters are in the set
-     * @param options bitmask for options to apply to the pattern.
-     * Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
-     * @param symbols a symbol table mapping variable names to
-     * values and stand-ins to UnicodeSets; may be NULL
-     * @param status returns <code>U_ILLEGAL_ARGUMENT_ERROR</code> if the pattern
-     * contains a syntax error.
-     *<em> Empties the set passed before applying the pattern.</em>
-     * @return a reference to this
-     * @internal
-     */
-    UnicodeSet& applyPattern(const UnicodeString& pattern,
-                             uint32_t options,
-                             const SymbolTable* symbols,
-                             UErrorCode& status);
-
-    /**
-     * Parses the given pattern, starting at the given position.  The
-     * character at pattern.charAt(pos.getIndex()) must be '[', or the
-     * parse fails.  Parsing continues until the corresponding closing
-     * ']'.  If a syntax error is encountered between the opening and
-     * closing brace, the parse fails.  Upon return from a successful
-     * parse, the ParsePosition is updated to point to the character
-     * following the closing ']', and a StringBuffer containing a
-     * pairs list for the parsed pattern is returned.  This method calls
-     * itself recursively to parse embedded subpatterns.
-     *<em> Empties the set passed before applying the pattern.</em>
-     * A frozen set will not be modified.
-     *
-     * @param pattern the string containing the pattern to be parsed.
-     * The portion of the string from pos.getIndex(), which must be a
-     * '[', to the corresponding closing ']', is parsed.
-     * @param pos upon entry, the position at which to being parsing.
-     * The character at pattern.charAt(pos.getIndex()) must be a '['.
-     * Upon return from a successful parse, pos.getIndex() is either
-     * the character after the closing ']' of the parsed pattern, or
-     * pattern.length() if the closing ']' is the last character of
-     * the pattern string.
-     * @param options bitmask for options to apply to the pattern.
-     * Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
-     * @param symbols a symbol table mapping variable names to
-     * values and stand-ins to UnicodeSets; may be NULL
-     * @param status returns <code>U_ILLEGAL_ARGUMENT_ERROR</code> if the pattern
-     * contains a syntax error.
-     * @return a reference to this
-     * @stable ICU 2.8
-     */
-    UnicodeSet& applyPattern(const UnicodeString& pattern,
-                             ParsePosition& pos,
-                             uint32_t options,
-                             const SymbolTable* symbols,
-                             UErrorCode& status);
-
-    /**
-     * Returns a string representation of this set.  If the result of
-     * calling this function is passed to a UnicodeSet constructor, it
-     * will produce another set that is equal to this one.
-     * A frozen set will not be modified.
-     * @param result the string to receive the rules.  Previous
-     * contents will be deleted.
-     * @param escapeUnprintable if TRUE then convert unprintable
-     * character to their hex escape representations, \\uxxxx or
-     * \\Uxxxxxxxx.  Unprintable characters are those other than
-     * U+000A, U+0020..U+007E.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeString& toPattern(UnicodeString& result,
-                             UBool escapeUnprintable = FALSE) const;
-
-    /**
-     * Modifies this set to contain those code points which have the given value
-     * for the given binary or enumerated property, as returned by
-     * u_getIntPropertyValue.  Prior contents of this set are lost.
-     * A frozen set will not be modified.
-     *
-     * @param prop a property in the range UCHAR_BIN_START..UCHAR_BIN_LIMIT-1
-     * or UCHAR_INT_START..UCHAR_INT_LIMIT-1
-     * or UCHAR_MASK_START..UCHAR_MASK_LIMIT-1.
-     *
-     * @param value a value in the range u_getIntPropertyMinValue(prop)..
-     * u_getIntPropertyMaxValue(prop), with one exception.  If prop is
-     * UCHAR_GENERAL_CATEGORY_MASK, then value should not be a UCharCategory, but
-     * rather a mask value produced by U_GET_GC_MASK().  This allows grouped
-     * categories such as [:L:] to be represented.
-     *
-     * @param ec error code input/output parameter
-     *
-     * @return a reference to this set
-     *
-     * @stable ICU 2.4
-     */
-    UnicodeSet& applyIntPropertyValue(UProperty prop,
-                                      int32_t value,
-                                      UErrorCode& ec);
-
-    /**
-     * Modifies this set to contain those code points which have the
-     * given value for the given property.  Prior contents of this
-     * set are lost.
-     * A frozen set will not be modified.
-     *
-     * @param prop a property alias, either short or long.  The name is matched
-     * loosely.  See PropertyAliases.txt for names and a description of loose
-     * matching.  If the value string is empty, then this string is interpreted
-     * as either a General_Category value alias, a Script value alias, a binary
-     * property alias, or a special ID.  Special IDs are matched loosely and
-     * correspond to the following sets:
-     *
-     * "ANY" = [\\u0000-\\U0010FFFF],
-     * "ASCII" = [\\u0000-\\u007F],
-     * "Assigned" = [:^Cn:].
-     *
-     * @param value a value alias, either short or long.  The name is matched
-     * loosely.  See PropertyValueAliases.txt for names and a description of
-     * loose matching.  In addition to aliases listed, numeric values and
-     * canonical combining classes may be expressed numerically, e.g., ("nv",
-     * "0.5") or ("ccc", "220").  The value string may also be empty.
-     *
-     * @param ec error code input/output parameter
-     *
-     * @return a reference to this set
-     *
-     * @stable ICU 2.4
-     */
-    UnicodeSet& applyPropertyAlias(const UnicodeString& prop,
-                                   const UnicodeString& value,
-                                   UErrorCode& ec);
-
-    /**
-     * Returns the number of elements in this set (its cardinality).
-     * Note than the elements of a set may include both individual
-     * codepoints and strings.
-     *
-     * @return the number of elements in this set (its cardinality).
-     * @stable ICU 2.0
-     */
-    virtual int32_t size(void) const;
-
-    /**
-     * Returns <tt>true</tt> if this set contains no elements.
-     *
-     * @return <tt>true</tt> if this set contains no elements.
-     * @stable ICU 2.0
-     */
-    virtual UBool isEmpty(void) const;
-
-    /**
-     * Returns true if this set contains the given character.
-     * This function works faster with a frozen set.
-     * @param c character to be checked for containment
-     * @return true if the test condition is met
-     * @stable ICU 2.0
-     */
-    virtual UBool contains(UChar32 c) const;
-
-    /**
-     * Returns true if this set contains every character
-     * of the given range.
-     * @param start first character, inclusive, of the range
-     * @param end last character, inclusive, of the range
-     * @return true if the test condition is met
-     * @stable ICU 2.0
-     */
-    virtual UBool contains(UChar32 start, UChar32 end) const;
-
-    /**
-     * Returns <tt>true</tt> if this set contains the given
-     * multicharacter string.
-     * @param s string to be checked for containment
-     * @return <tt>true</tt> if this set contains the specified string
-     * @stable ICU 2.4
-     */
-    UBool contains(const UnicodeString& s) const;
-
-    /**
-     * Returns true if this set contains all the characters and strings
-     * of the given set.
-     * @param c set to be checked for containment
-     * @return true if the test condition is met
-     * @stable ICU 2.4
-     */
-    virtual UBool containsAll(const UnicodeSet& c) const;
-
-    /**
-     * Returns true if this set contains all the characters
-     * of the given string.
-     * @param s string containing characters to be checked for containment
-     * @return true if the test condition is met
-     * @stable ICU 2.4
-     */
-    UBool containsAll(const UnicodeString& s) const;
-
-    /**
-     * Returns true if this set contains none of the characters
-     * of the given range.
-     * @param start first character, inclusive, of the range
-     * @param end last character, inclusive, of the range
-     * @return true if the test condition is met
-     * @stable ICU 2.4
-     */
-    UBool containsNone(UChar32 start, UChar32 end) const;
-
-    /**
-     * Returns true if this set contains none of the characters and strings
-     * of the given set.
-     * @param c set to be checked for containment
-     * @return true if the test condition is met
-     * @stable ICU 2.4
-     */
-    UBool containsNone(const UnicodeSet& c) const;
-
-    /**
-     * Returns true if this set contains none of the characters
-     * of the given string.
-     * @param s string containing characters to be checked for containment
-     * @return true if the test condition is met
-     * @stable ICU 2.4
-     */
-    UBool containsNone(const UnicodeString& s) const;
-
-    /**
-     * Returns true if this set contains one or more of the characters
-     * in the given range.
-     * @param start first character, inclusive, of the range
-     * @param end last character, inclusive, of the range
-     * @return true if the condition is met
-     * @stable ICU 2.4
-     */
-    inline UBool containsSome(UChar32 start, UChar32 end) const;
-
-    /**
-     * Returns true if this set contains one or more of the characters
-     * and strings of the given set.
-     * @param s The set to be checked for containment
-     * @return true if the condition is met
-     * @stable ICU 2.4
-     */
-    inline UBool containsSome(const UnicodeSet& s) const;
-
-    /**
-     * Returns true if this set contains one or more of the characters
-     * of the given string.
-     * @param s string containing characters to be checked for containment
-     * @return true if the condition is met
-     * @stable ICU 2.4
-     */
-    inline UBool containsSome(const UnicodeString& s) const;
-
-    /**
-     * Returns the length of the initial substring of the input string which
-     * consists only of characters and strings that are contained in this set
-     * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
-     * or only of characters and strings that are not contained
-     * in this set (USET_SPAN_NOT_CONTAINED).
-     * See USetSpanCondition for details.
-     * Similar to the strspn() C library function.
-     * Unpaired surrogates are treated according to contains() of their surrogate code points.
-     * This function works faster with a frozen set and with a non-negative string length argument.
-     * @param s start of the string
-     * @param length of the string; can be -1 for NUL-terminated
-     * @param spanCondition specifies the containment condition
-     * @return the length of the initial substring according to the spanCondition;
-     *         0 if the start of the string does not fit the spanCondition
-     * @stable ICU 4.0
-     * @see USetSpanCondition
-     */
-    int32_t span(const UChar *s, int32_t length, USetSpanCondition spanCondition) const;
-
-    /**
-     * Returns the start of the trailing substring of the input string which
-     * consists only of characters and strings that are contained in this set
-     * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
-     * or only of characters and strings that are not contained
-     * in this set (USET_SPAN_NOT_CONTAINED).
-     * See USetSpanCondition for details.
-     * Unpaired surrogates are treated according to contains() of their surrogate code points.
-     * This function works faster with a frozen set and with a non-negative string length argument.
-     * @param s start of the string
-     * @param length of the string; can be -1 for NUL-terminated
-     * @param spanCondition specifies the containment condition
-     * @return the start of the trailing substring according to the spanCondition;
-     *         the string length if the end of the string does not fit the spanCondition
-     * @stable ICU 4.0
-     * @see USetSpanCondition
-     */
-    int32_t spanBack(const UChar *s, int32_t length, USetSpanCondition spanCondition) const;
-
-    /**
-     * Returns the length of the initial substring of the input string which
-     * consists only of characters and strings that are contained in this set
-     * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
-     * or only of characters and strings that are not contained
-     * in this set (USET_SPAN_NOT_CONTAINED).
-     * See USetSpanCondition for details.
-     * Similar to the strspn() C library function.
-     * Malformed byte sequences are treated according to contains(0xfffd).
-     * This function works faster with a frozen set and with a non-negative string length argument.
-     * @param s start of the string (UTF-8)
-     * @param length of the string; can be -1 for NUL-terminated
-     * @param spanCondition specifies the containment condition
-     * @return the length of the initial substring according to the spanCondition;
-     *         0 if the start of the string does not fit the spanCondition
-     * @stable ICU 4.0
-     * @see USetSpanCondition
-     */
-    int32_t spanUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const;
-
-    /**
-     * Returns the start of the trailing substring of the input string which
-     * consists only of characters and strings that are contained in this set
-     * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
-     * or only of characters and strings that are not contained
-     * in this set (USET_SPAN_NOT_CONTAINED).
-     * See USetSpanCondition for details.
-     * Malformed byte sequences are treated according to contains(0xfffd).
-     * This function works faster with a frozen set and with a non-negative string length argument.
-     * @param s start of the string (UTF-8)
-     * @param length of the string; can be -1 for NUL-terminated
-     * @param spanCondition specifies the containment condition
-     * @return the start of the trailing substring according to the spanCondition;
-     *         the string length if the end of the string does not fit the spanCondition
-     * @stable ICU 4.0
-     * @see USetSpanCondition
-     */
-    int32_t spanBackUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const;
-
-    /**
-     * Implement UnicodeMatcher::matches()
-     * @stable ICU 2.4
-     */
-    virtual UMatchDegree matches(const Replaceable& text,
-                         int32_t& offset,
-                         int32_t limit,
-                         UBool incremental);
-
-private:
-    /**
-     * Returns the longest match for s in text at the given position.
-     * If limit > start then match forward from start+1 to limit
-     * matching all characters except s.charAt(0).  If limit < start,
-     * go backward starting from start-1 matching all characters
-     * except s.charAt(s.length()-1).  This method assumes that the
-     * first character, text.charAt(start), matches s, so it does not
-     * check it.
-     * @param text the text to match
-     * @param start the first character to match.  In the forward
-     * direction, text.charAt(start) is matched against s.charAt(0).
-     * In the reverse direction, it is matched against
-     * s.charAt(s.length()-1).
-     * @param limit the limit offset for matching, either last+1 in
-     * the forward direction, or last-1 in the reverse direction,
-     * where last is the index of the last character to match.
-     * @return If part of s matches up to the limit, return |limit -
-     * start|.  If all of s matches before reaching the limit, return
-     * s.length().  If there is a mismatch between s and text, return
-     * 0
-     */
-    static int32_t matchRest(const Replaceable& text,
-                             int32_t start, int32_t limit,
-                             const UnicodeString& s);
-
-    /**
-     * Returns the smallest value i such that c < list[i].  Caller
-     * must ensure that c is a legal value or this method will enter
-     * an infinite loop.  This method performs a binary search.
-     * @param c a character in the range MIN_VALUE..MAX_VALUE
-     * inclusive
-     * @return the smallest integer i in the range 0..len-1,
-     * inclusive, such that c < list[i]
-     */
-    int32_t findCodePoint(UChar32 c) const;
-
-public:
-
-    /**
-     * Implementation of UnicodeMatcher API.  Union the set of all
-     * characters that may be matched by this object into the given
-     * set.
-     * @param toUnionTo the set into which to union the source characters
-     * @stable ICU 2.4
-     */
-    virtual void addMatchSetTo(UnicodeSet& toUnionTo) const;
-
-    /**
-     * Returns the index of the given character within this set, where
-     * the set is ordered by ascending code point.  If the character
-     * is not in this set, return -1.  The inverse of this method is
-     * <code>charAt()</code>.
-     * @return an index from 0..size()-1, or -1
-     * @stable ICU 2.4
-     */
-    int32_t indexOf(UChar32 c) const;
-
-    /**
-     * Returns the character at the given index within this set, where
-     * the set is ordered by ascending code point.  If the index is
-     * out of range, return (UChar32)-1.  The inverse of this method is
-     * <code>indexOf()</code>.
-     * @param index an index from 0..size()-1
-     * @return the character at the given index, or (UChar32)-1.
-     * @stable ICU 2.4
-     */
-    UChar32 charAt(int32_t index) const;
-
-    /**
-     * Adds the specified range to this set if it is not already
-     * present.  If this set already contains the specified range,
-     * the call leaves this set unchanged.  If <code>end > start</code>
-     * then an empty range is added, leaving the set unchanged.
-     * This is equivalent to a boolean logic OR, or a set UNION.
-     * A frozen set will not be modified.
-     *
-     * @param start first character, inclusive, of range to be added
-     * to this set.
-     * @param end last character, inclusive, of range to be added
-     * to this set.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& add(UChar32 start, UChar32 end);
-
-    /**
-     * Adds the specified character to this set if it is not already
-     * present.  If this set already contains the specified character,
-     * the call leaves this set unchanged.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    UnicodeSet& add(UChar32 c);
-
-    /**
-     * Adds the specified multicharacter to this set if it is not already
-     * present.  If this set already contains the multicharacter,
-     * the call leaves this set unchanged.
-     * Thus "ch" => {"ch"}
-     * <br><b>Warning: you cannot add an empty string ("") to a UnicodeSet.</b>
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& add(const UnicodeString& s);
-
- private:
-    /**
-     * @return a code point IF the string consists of a single one.
-     * otherwise returns -1.
-     * @param string to test
-     */
-    static int32_t getSingleCP(const UnicodeString& s);
-
-    void _add(const UnicodeString& s);
-
- public:
-    /**
-     * Adds each of the characters in this string to the set. Thus "ch" => {"c", "h"}
-     * If this set already any particular character, it has no effect on that character.
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& addAll(const UnicodeString& s);
-
-    /**
-     * Retains EACH of the characters in this string. Note: "ch" == {"c", "h"}
-     * If this set already any particular character, it has no effect on that character.
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& retainAll(const UnicodeString& s);
-
-    /**
-     * Complement EACH of the characters in this string. Note: "ch" == {"c", "h"}
-     * If this set already any particular character, it has no effect on that character.
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& complementAll(const UnicodeString& s);
-
-    /**
-     * Remove EACH of the characters in this string. Note: "ch" == {"c", "h"}
-     * If this set already any particular character, it has no effect on that character.
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& removeAll(const UnicodeString& s);
-
-    /**
-     * Makes a set from a multicharacter string. Thus "ch" => {"ch"}
-     * <br><b>Warning: you cannot add an empty string ("") to a UnicodeSet.</b>
-     * @param s the source string
-     * @return a newly created set containing the given string.
-     * The caller owns the return object and is responsible for deleting it.
-     * @stable ICU 2.4
-     */
-    static UnicodeSet* U_EXPORT2 createFrom(const UnicodeString& s);
-
-
-    /**
-     * Makes a set from each of the characters in the string. Thus "ch" => {"c", "h"}
-     * @param s the source string
-     * @return a newly created set containing the given characters
-     * The caller owns the return object and is responsible for deleting it.
-     * @stable ICU 2.4
-     */
-    static UnicodeSet* U_EXPORT2 createFromAll(const UnicodeString& s);
-
-    /**
-     * Retain only the elements in this set that are contained in the
-     * specified range.  If <code>end > start</code> then an empty range is
-     * retained, leaving the set empty.  This is equivalent to
-     * a boolean logic AND, or a set INTERSECTION.
-     * A frozen set will not be modified.
-     *
-     * @param start first character, inclusive, of range to be retained
-     * to this set.
-     * @param end last character, inclusive, of range to be retained
-     * to this set.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& retain(UChar32 start, UChar32 end);
-
-
-    /**
-     * Retain the specified character from this set if it is present.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    UnicodeSet& retain(UChar32 c);
-
-    /**
-     * Removes the specified range from this set if it is present.
-     * The set will not contain the specified range once the call
-     * returns.  If <code>end > start</code> then an empty range is
-     * removed, leaving the set unchanged.
-     * A frozen set will not be modified.
-     *
-     * @param start first character, inclusive, of range to be removed
-     * from this set.
-     * @param end last character, inclusive, of range to be removed
-     * from this set.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& remove(UChar32 start, UChar32 end);
-
-    /**
-     * Removes the specified character from this set if it is present.
-     * The set will not contain the specified range once the call
-     * returns.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    UnicodeSet& remove(UChar32 c);
-
-    /**
-     * Removes the specified string from this set if it is present.
-     * The set will not contain the specified character once the call
-     * returns.
-     * A frozen set will not be modified.
-     * @param s the source string
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& remove(const UnicodeString& s);
-
-    /**
-     * Inverts this set.  This operation modifies this set so that
-     * its value is its complement.  This is equivalent to
-     * <code>complement(MIN_VALUE, MAX_VALUE)</code>.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& complement(void);
-
-    /**
-     * Complements the specified range in this set.  Any character in
-     * the range will be removed if it is in this set, or will be
-     * added if it is not in this set.  If <code>end > start</code>
-     * then an empty range is complemented, leaving the set unchanged.
-     * This is equivalent to a boolean logic XOR.
-     * A frozen set will not be modified.
-     *
-     * @param start first character, inclusive, of range to be removed
-     * from this set.
-     * @param end last character, inclusive, of range to be removed
-     * from this set.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& complement(UChar32 start, UChar32 end);
-
-    /**
-     * Complements the specified character in this set.  The character
-     * will be removed if it is in this set, or will be added if it is
-     * not in this set.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    UnicodeSet& complement(UChar32 c);
-
-    /**
-     * Complement the specified string in this set.
-     * The set will not contain the specified string once the call
-     * returns.
-     * <br><b>Warning: you cannot add an empty string ("") to a UnicodeSet.</b>
-     * A frozen set will not be modified.
-     * @param s the string to complement
-     * @return this object, for chaining
-     * @stable ICU 2.4
-     */
-    UnicodeSet& complement(const UnicodeString& s);
-
-    /**
-     * Adds all of the elements in the specified set to this set if
-     * they're not already present.  This operation effectively
-     * modifies this set so that its value is the <i>union</i> of the two
-     * sets.  The behavior of this operation is unspecified if the specified
-     * collection is modified while the operation is in progress.
-     * A frozen set will not be modified.
-     *
-     * @param c set whose elements are to be added to this set.
-     * @see #add(UChar32, UChar32)
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& addAll(const UnicodeSet& c);
-
-    /**
-     * Retains only the elements in this set that are contained in the
-     * specified set.  In other words, removes from this set all of
-     * its elements that are not contained in the specified set.  This
-     * operation effectively modifies this set so that its value is
-     * the <i>intersection</i> of the two sets.
-     * A frozen set will not be modified.
-     *
-     * @param c set that defines which elements this set will retain.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& retainAll(const UnicodeSet& c);
-
-    /**
-     * Removes from this set all of its elements that are contained in the
-     * specified set.  This operation effectively modifies this
-     * set so that its value is the <i>asymmetric set difference</i> of
-     * the two sets.
-     * A frozen set will not be modified.
-     *
-     * @param c set that defines which elements will be removed from
-     *          this set.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& removeAll(const UnicodeSet& c);
-
-    /**
-     * Complements in this set all elements contained in the specified
-     * set.  Any character in the other set will be removed if it is
-     * in this set, or will be added if it is not in this set.
-     * A frozen set will not be modified.
-     *
-     * @param c set that defines which elements will be xor'ed from
-     *          this set.
-     * @stable ICU 2.4
-     */
-    virtual UnicodeSet& complementAll(const UnicodeSet& c);
-
-    /**
-     * Removes all of the elements from this set.  This set will be
-     * empty after this call returns.
-     * A frozen set will not be modified.
-     * @stable ICU 2.0
-     */
-    virtual UnicodeSet& clear(void);
-
-    /**
-     * Close this set over the given attribute.  For the attribute
-     * USET_CASE, the result is to modify this set so that:
-     *
-     * 1. For each character or string 'a' in this set, all strings or
-     * characters 'b' such that foldCase(a) == foldCase(b) are added
-     * to this set.
-     *
-     * 2. For each string 'e' in the resulting set, if e !=
-     * foldCase(e), 'e' will be removed.
-     *
-     * Example: [aq\\u00DF{Bc}{bC}{Fi}] => [aAqQ\\u00DF\\uFB01{ss}{bc}{fi}]
-     *
-     * (Here foldCase(x) refers to the operation u_strFoldCase, and a
-     * == b denotes that the contents are the same, not pointer
-     * comparison.)
-     *
-     * A frozen set will not be modified.
-     *
-     * @param attribute bitmask for attributes to close over.
-     * Currently only the USET_CASE bit is supported.  Any undefined bits
-     * are ignored.
-     * @return a reference to this set.
-     * @internal
-     */
-    UnicodeSet& closeOver(int32_t attribute);
-
-    /**
-     * Remove all strings from this set.
-     *
-     * @return a reference to this set.
-     * @internal
-     */
-    virtual UnicodeSet &removeAllStrings();
-
-    /**
-     * Iteration method that returns the number of ranges contained in
-     * this set.
-     * @see #getRangeStart
-     * @see #getRangeEnd
-     * @stable ICU 2.4
-     */
-    virtual int32_t getRangeCount(void) const;
-
-    /**
-     * Iteration method that returns the first character in the
-     * specified range of this set.
-     * @see #getRangeCount
-     * @see #getRangeEnd
-     * @stable ICU 2.4
-     */
-    virtual UChar32 getRangeStart(int32_t index) const;
-
-    /**
-     * Iteration method that returns the last character in the
-     * specified range of this set.
-     * @see #getRangeStart
-     * @see #getRangeEnd
-     * @stable ICU 2.4
-     */
-    virtual UChar32 getRangeEnd(int32_t index) const;
-
-    /**
-     * Serializes this set into an array of 16-bit integers.  Serialization
-     * (currently) only records the characters in the set; multicharacter
-     * strings are ignored.
-     *
-     * The array has following format (each line is one 16-bit
-     * integer):
-     *
-     *  length     = (n+2*m) | (m!=0?0x8000:0)
-     *  bmpLength  = n; present if m!=0
-     *  bmp[0]
-     *  bmp[1]
-     *  ...
-     *  bmp[n-1]
-     *  supp-high[0]
-     *  supp-low[0]
-     *  supp-high[1]
-     *  supp-low[1]
-     *  ...
-     *  supp-high[m-1]
-     *  supp-low[m-1]
-     *
-     * The array starts with a header.  After the header are n bmp
-     * code points, then m supplementary code points.  Either n or m
-     * or both may be zero.  n+2*m is always <= 0x7FFF.
-     *
-     * If there are no supplementary characters (if m==0) then the
-     * header is one 16-bit integer, 'length', with value n.
-     *
-     * If there are supplementary characters (if m!=0) then the header
-     * is two 16-bit integers.  The first, 'length', has value
-     * (n+2*m)|0x8000.  The second, 'bmpLength', has value n.
-     *
-     * After the header the code points are stored in ascending order.
-     * Supplementary code points are stored as most significant 16
-     * bits followed by least significant 16 bits.
-     *
-     * @param dest pointer to buffer of destCapacity 16-bit integers.
-     * May be NULL only if destCapacity is zero.
-     * @param destCapacity size of dest, or zero.  Must not be negative.
-     * @param ec error code.  Will be set to U_INDEX_OUTOFBOUNDS_ERROR
-     * if n+2*m > 0x7FFF.  Will be set to U_BUFFER_OVERFLOW_ERROR if
-     * n+2*m+(m!=0?2:1) > destCapacity.
-     * @return the total length of the serialized format, including
-     * the header, that is, n+2*m+(m!=0?2:1), or 0 on error other
-     * than U_BUFFER_OVERFLOW_ERROR.
-     * @stable ICU 2.4
-     */
-    int32_t serialize(uint16_t *dest, int32_t destCapacity, UErrorCode& ec) const;
-
-    /**
-     * Reallocate this objects internal structures to take up the least
-     * possible space, without changing this object's value.
-     * A frozen set will not be modified.
-     * @stable ICU 2.4
-     */
-    virtual UnicodeSet& compact();
-
-    /**
-     * Return the class ID for this class.  This is useful only for
-     * comparing to a return value from getDynamicClassID().  For example:
-     * <pre>
-     * .      Base* polymorphic_pointer = createPolymorphicObject();
-     * .      if (polymorphic_pointer->getDynamicClassID() ==
-     * .          Derived::getStaticClassID()) ...
-     * </pre>
-     * @return          The class ID for all objects of this class.
-     * @stable ICU 2.0
-     */
-    static UClassID U_EXPORT2 getStaticClassID(void);
-
-    /**
-     * Implement UnicodeFunctor API.
-     *
-     * @return The class ID for this object. All objects of a given
-     * class have the same class ID.  Objects of other classes have
-     * different class IDs.
-     * @stable ICU 2.4
-     */
-    virtual UClassID getDynamicClassID(void) const;
-
-private:
-
-    // Private API for the USet API
-
-    friend class USetAccess;
-
-    int32_t getStringCount() const;
-
-    const UnicodeString* getString(int32_t index) const;
-
-    //----------------------------------------------------------------
-    // RuleBasedTransliterator support
-    //----------------------------------------------------------------
-
-private:
-
-    /**
-     * Returns <tt>true</tt> if this set contains any character whose low byte
-     * is the given value.  This is used by <tt>RuleBasedTransliterator</tt> for
-     * indexing.
-     */
-    virtual UBool matchesIndexValue(uint8_t v) const;
-
-private:
-
-    //----------------------------------------------------------------
-    // Implementation: Clone as thawed (see ICU4J Freezable)
-    //----------------------------------------------------------------
-
-    UnicodeSet(const UnicodeSet& o, UBool /* asThawed */);
-
-    //----------------------------------------------------------------
-    // Implementation: Pattern parsing
-    //----------------------------------------------------------------
-
-    void applyPattern(RuleCharacterIterator& chars,
-                      const SymbolTable* symbols,
-                      UnicodeString& rebuiltPat,
-                      uint32_t options,
-                      UErrorCode& ec);
-
-    //----------------------------------------------------------------
-    // Implementation: Utility methods
-    //----------------------------------------------------------------
-
-    void ensureCapacity(int32_t newLen, UErrorCode& ec);
-
-    void ensureBufferCapacity(int32_t newLen, UErrorCode& ec);
-
-    void swapBuffers(void);
-
-    UBool allocateStrings(UErrorCode &status);
-
-    UnicodeString& _toPattern(UnicodeString& result,
-                              UBool escapeUnprintable) const;
-
-    UnicodeString& _generatePattern(UnicodeString& result,
-                                    UBool escapeUnprintable) const;
-
-    static void _appendToPat(UnicodeString& buf, const UnicodeString& s, UBool escapeUnprintable);
-
-    static void _appendToPat(UnicodeString& buf, UChar32 c, UBool escapeUnprintable);
-
-    //----------------------------------------------------------------
-    // Implementation: Fundamental operators
-    //----------------------------------------------------------------
-
-    void exclusiveOr(const UChar32* other, int32_t otherLen, int8_t polarity);
-
-    void add(const UChar32* other, int32_t otherLen, int8_t polarity);
-
-    void retain(const UChar32* other, int32_t otherLen, int8_t polarity);
-
-    /**
-     * Return true if the given position, in the given pattern, appears
-     * to be the start of a property set pattern [:foo:], \\p{foo}, or
-     * \\P{foo}, or \\N{name}.
-     */
-    static UBool resemblesPropertyPattern(const UnicodeString& pattern,
-                                          int32_t pos);
-
-    static UBool resemblesPropertyPattern(RuleCharacterIterator& chars,
-                                          int32_t iterOpts);
-
-    /**
-     * Parse the given property pattern at the given parse position
-     * and set this UnicodeSet to the result.
-     *
-     * The original design document is out of date, but still useful.
-     * Ignore the property and value names:
-     * http://source.icu-project.org/repos/icu/icuhtml/trunk/design/unicodeset_properties.html
-     *
-     * Recognized syntax:
-     *
-     * [:foo:] [:^foo:] - white space not allowed within "[:" or ":]"
-     * \\p{foo} \\P{foo}  - white space not allowed within "\\p" or "\\P"
-     * \\N{name}         - white space not allowed within "\\N"
-     *
-     * Other than the above restrictions, white space is ignored.  Case
-     * is ignored except in "\\p" and "\\P" and "\\N".  In 'name' leading
-     * and trailing space is deleted, and internal runs of whitespace
-     * are collapsed to a single space.
-     *
-     * We support binary properties, enumerated properties, and the
-     * following non-enumerated properties:
-     *
-     *  Numeric_Value
-     *  Name
-     *  Unicode_1_Name
-     *
-     * @param pattern the pattern string
-     * @param ppos on entry, the position at which to begin parsing.
-     * This should be one of the locations marked '^':
-     *
-     *   [:blah:]     \\p{blah}     \\P{blah}     \\N{name}
-     *   ^       %    ^       %    ^       %    ^       %
-     *
-     * On return, the position after the last character parsed, that is,
-     * the locations marked '%'.  If the parse fails, ppos is returned
-     * unchanged.
-     * @return a reference to this.
-     */
-    UnicodeSet& applyPropertyPattern(const UnicodeString& pattern,
-                                     ParsePosition& ppos,
-                                     UErrorCode &ec);
-
-    void applyPropertyPattern(RuleCharacterIterator& chars,
-                              UnicodeString& rebuiltPat,
-                              UErrorCode& ec);
-
-    static const UnicodeSet* getInclusions(int32_t src, UErrorCode &status);
-
-    /**
-     * A filter that returns TRUE if the given code point should be
-     * included in the UnicodeSet being constructed.
-     */
-    typedef UBool (*Filter)(UChar32 codePoint, void* context);
-
-    /**
-     * Given a filter, set this UnicodeSet to the code points
-     * contained by that filter.  The filter MUST be
-     * property-conformant.  That is, if it returns value v for one
-     * code point, then it must return v for all affiliated code
-     * points, as defined by the inclusions list.  See
-     * getInclusions().
-     * src is a UPropertySource value.
-     */
-    void applyFilter(Filter filter,
-                     void* context,
-                     int32_t src,
-                     UErrorCode &status);
-
-    /**
-     * Set the new pattern to cache.
-     */
-    void setPattern(const UnicodeString& newPat);
-    /**
-     * Release existing cached pattern.
-     */
-    void releasePattern();
-
-    friend class UnicodeSetIterator;
-};
-
-inline UBool UnicodeSet::operator!=(const UnicodeSet& o) const {
-    return !operator==(o);
-}
-
-inline UBool UnicodeSet::isFrozen() const {
-    return (UBool)(bmpSet!=NULL || stringSpan!=NULL);
-}
-
-inline UBool UnicodeSet::containsSome(UChar32 start, UChar32 end) const {
-    return !containsNone(start, end);
-}
-
-inline UBool UnicodeSet::containsSome(const UnicodeSet& s) const {
-    return !containsNone(s);
-}
-
-inline UBool UnicodeSet::containsSome(const UnicodeString& s) const {
-    return !containsNone(s);
-}
-
-inline UBool UnicodeSet::isBogus() const {
-    return (UBool)(fFlags & kIsBogus);
-}
-
-U_NAMESPACE_END
-
-#endif


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