golden hour

/opt/alt/libicu/usr/include/unicode

File/Folder	Size	Actions
alphaindex.h	26.42 KB
appendable.h	8.43 KB
basictz.h	8.84 KB
brkiter.h	27.53 KB
bytestream.h	9.54 KB
bytestrie.h	19.26 KB
bytestriebuilder.h	7.02 KB
calendar.h	105.06 KB
caniter.h	7.37 KB
casemap.h	25.26 KB
char16ptr.h	7.16 KB
chariter.h	24 KB
choicfmt.h	23.85 KB
coleitr.h	13.7 KB
coll.h	55.59 KB
compactdecimalformat.h	6.81 KB
curramt.h	3.69 KB
currpinf.h	7.24 KB
currunit.h	3.52 KB
datefmt.h	40.37 KB
dbbi.h	1.11 KB
dcfmtsym.h	20.1 KB
decimfmt.h	86.4 KB
docmain.h	6.72 KB
dtfmtsym.h	37.64 KB
dtintrv.h	3.76 KB
dtitvfmt.h	42.87 KB
dtitvinf.h	18.46 KB
dtptngen.h	25.03 KB
dtrule.h	8.62 KB
edits.h	20.67 KB
enumset.h	2.08 KB
errorcode.h	4.78 KB
fieldpos.h	8.63 KB
filteredbrk.h	5.24 KB
fmtable.h	24.36 KB
format.h	12.44 KB
fpositer.h	2.98 KB
gender.h	3.27 KB
gregocal.h	31.57 KB
icudataver.h	1.03 KB
icuplug.h	11.88 KB
idna.h	12.63 KB
listformatter.h	6.18 KB
localpointer.h	16.88 KB
locdspnm.h	7.05 KB
locid.h	44.92 KB
measfmt.h	12.01 KB
measunit.h	38.5 KB
measure.h	4.26 KB
messagepattern.h	33.65 KB
msgfmt.h	43.36 KB
normalizer2.h	33.97 KB
normlzr.h	30.74 KB
nounit.h	2.63 KB
numberformatter.h	87.07 KB
numberrangeformatter.h	28.74 KB
numfmt.h	49.14 KB
numsys.h	6.73 KB
parseerr.h	3.08 KB
parsepos.h	5.45 KB
platform.h	27.1 KB
plurfmt.h	25.18 KB
plurrule.h	17.42 KB
ptypes.h	3.49 KB
putil.h	6.33 KB
rbbi.h	26.41 KB
rbnf.h	49.79 KB
rbtz.h	15.47 KB
regex.h	84.91 KB
region.h	9.12 KB
reldatefmt.h	14.46 KB
rep.h	9.5 KB
resbund.h	18.01 KB
schriter.h	6.26 KB
scientificnumberformatter.h	6.32 KB
search.h	22.21 KB
selfmt.h	14.24 KB
simpleformatter.h	11.43 KB
simpletz.h	45.3 KB
smpdtfmt.h	70.74 KB
sortkey.h	11.12 KB
std_string.h	1015 B
strenum.h	10.04 KB
stringoptions.h	5.79 KB
stringpiece.h	6.46 KB
stringtriebuilder.h	15.27 KB
stsearch.h	21.29 KB
symtable.h	4.21 KB
tblcoll.h	36.4 KB
timezone.h	40.88 KB
tmunit.h	3.29 KB
tmutamt.h	4.8 KB
tmutfmt.h	7.79 KB
translit.h	65.76 KB
tzfmt.h	42.82 KB
tznames.h	16.79 KB
tzrule.h	35.32 KB
tztrans.h	6.07 KB
ubidi.h	89.56 KB
ubiditransform.h	12.65 KB
ubrk.h	23.97 KB
ucal.h	55.2 KB
ucasemap.h	15.18 KB
ucat.h	5.36 KB
uchar.h	139.96 KB
ucharstrie.h	21.06 KB
ucharstriebuilder.h	7.14 KB
uchriter.h	13.14 KB
uclean.h	11.21 KB
ucnv.h	83.09 KB
ucnv_cb.h	6.59 KB
ucnv_err.h	20.99 KB
ucnvsel.h	6.14 KB
ucol.h	61.39 KB
ucoleitr.h	9.46 KB
uconfig.h	11.67 KB
ucpmap.h	5.58 KB
ucptrie.h	22.29 KB
ucsdet.h	14.67 KB
ucurr.h	15.57 KB
udat.h	60.13 KB
udata.h	15.53 KB
udateintervalformat.h	6.79 KB
udatpg.h	26.04 KB
udisplaycontext.h	5.89 KB
uenum.h	7.78 KB
ufieldpositer.h	4.36 KB
uformattable.h	10.94 KB
ugender.h	2 KB
uidna.h	33.37 KB
uiter.h	22.77 KB
uldnames.h	10.45 KB
ulistformatter.h	5.03 KB
uloc.h	50.75 KB
ulocdata.h	11.26 KB
umachine.h	13.19 KB
umisc.h	1.33 KB
umsg.h	24.23 KB
umutablecptrie.h	8.28 KB
unifilt.h	3.63 KB
unifunct.h	3.98 KB
unimatch.h	6.04 KB
unirepl.h	3.32 KB
uniset.h	64.25 KB
unistr.h	174.4 KB
unorm.h	20.45 KB
unorm2.h	24.66 KB
unum.h	53.38 KB
unumberformatter.h	23.76 KB
unumsys.h	7.14 KB
uobject.h	10.7 KB
upluralrules.h	6.72 KB
uregex.h	72.05 KB
uregion.h	9.84 KB
ureldatefmt.h	12.22 KB
urename.h	127.73 KB
urep.h	5.38 KB
ures.h	36.53 KB
uscript.h	26.52 KB
usearch.h	38.12 KB
uset.h	40 KB
usetiter.h	9.49 KB
ushape.h	18 KB
uspoof.h	66.03 KB
usprep.h	8.14 KB
ustdio.h	38.54 KB
ustream.h	1.8 KB
ustring.h	72.47 KB
ustringtrie.h	3.15 KB
utext.h	58.11 KB
utf.h	7.86 KB
utf16.h	22.33 KB
utf32.h	763 B
utf8.h	30.01 KB
utf_old.h	43.78 KB
utmscale.h	13.78 KB
utrace.h	13.89 KB
utrans.h	25.54 KB
utypes.h	30.48 KB
uvernum.h	6.06 KB
uversion.h	6.7 KB
vtzone.h	20.17 KB

Edit: ucharstrie.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*   Copyright (C) 2010-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  ucharstrie.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2010nov14
*   created by: Markus W. Scherer
*/

#ifndef __UCHARSTRIE_H__
#define __UCHARSTRIE_H__

/**
 * \file
 * \brief C++ API: Trie for mapping Unicode strings (or 16-bit-unit sequences)
 *                 to integer values.
 */

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

U_NAMESPACE_BEGIN

class Appendable;
class UCharsTrieBuilder;
class UVector32;

/**
 * Light-weight, non-const reader class for a UCharsTrie.
 * Traverses a char16_t-serialized data structure with minimal state,
 * for mapping strings (16-bit-unit sequences) to non-negative integer values.
 *
 * This class owns the serialized trie data only if it was constructed by
 * the builder's build() method.
 * The public constructor and the copy constructor only alias the data (only copy the pointer).
 * There is no assignment operator.
 *
 * This class is not intended for public subclassing.
 * @stable ICU 4.8
 */
class U_COMMON_API UCharsTrie : public UMemory {
public:
    /**
     * Constructs a UCharsTrie reader instance.
     *
     * The trieUChars must contain a copy of a char16_t sequence from the UCharsTrieBuilder,
     * starting with the first char16_t of that sequence.
     * The UCharsTrie object will not read more char16_ts than
     * the UCharsTrieBuilder generated in the corresponding build() call.
     *
     * The array is not copied/cloned and must not be modified while
     * the UCharsTrie object is in use.
     *
     * @param trieUChars The char16_t array that contains the serialized trie.
     * @stable ICU 4.8
     */
    UCharsTrie(ConstChar16Ptr trieUChars)
            : ownedArray_(NULL), uchars_(trieUChars),
              pos_(uchars_), remainingMatchLength_(-1) {}

/**
     * Destructor.
     * @stable ICU 4.8
     */
    ~UCharsTrie();

/**
     * Copy constructor, copies the other trie reader object and its state,
     * but not the char16_t array which will be shared. (Shallow copy.)
     * @param other Another UCharsTrie object.
     * @stable ICU 4.8
     */
    UCharsTrie(const UCharsTrie &other)
            : ownedArray_(NULL), uchars_(other.uchars_),
              pos_(other.pos_), remainingMatchLength_(other.remainingMatchLength_) {}

/**
     * Resets this trie to its initial state.
     * @return *this
     * @stable ICU 4.8
     */
    UCharsTrie &reset() {
        pos_=uchars_;
        remainingMatchLength_=-1;
        return *this;
    }

/**
     * UCharsTrie state object, for saving a trie's current state
     * and resetting the trie back to this state later.
     * @stable ICU 4.8
     */
    class State : public UMemory {
    public:
        /**
         * Constructs an empty State.
         * @stable ICU 4.8
         */
        State() { uchars=NULL; }
    private:
        friend class UCharsTrie;

const char16_t *uchars;
        const char16_t *pos;
        int32_t remainingMatchLength;
    };

/**
     * Saves the state of this trie.
     * @param state The State object to hold the trie's state.
     * @return *this
     * @see resetToState
     * @stable ICU 4.8
     */
    const UCharsTrie &saveState(State &state) const {
        state.uchars=uchars_;
        state.pos=pos_;
        state.remainingMatchLength=remainingMatchLength_;
        return *this;
    }

/**
     * Resets this trie to the saved state.
     * If the state object contains no state, or the state of a different trie,
     * then this trie remains unchanged.
     * @param state The State object which holds a saved trie state.
     * @return *this
     * @see saveState
     * @see reset
     * @stable ICU 4.8
     */
    UCharsTrie &resetToState(const State &state) {
        if(uchars_==state.uchars && uchars_!=NULL) {
            pos_=state.pos;
            remainingMatchLength_=state.remainingMatchLength;
        }
        return *this;
    }

/**
     * Determines whether the string so far matches, whether it has a value,
     * and whether another input char16_t can continue a matching string.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    UStringTrieResult current() const;

/**
     * Traverses the trie from the initial state for this input char16_t.
     * Equivalent to reset().next(uchar).
     * @param uchar Input char value. Values below 0 and above 0xffff will never match.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    inline UStringTrieResult first(int32_t uchar) {
        remainingMatchLength_=-1;
        return nextImpl(uchars_, uchar);
    }

/**
     * Traverses the trie from the initial state for the
     * one or two UTF-16 code units for this input code point.
     * Equivalent to reset().nextForCodePoint(cp).
     * @param cp A Unicode code point 0..0x10ffff.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    UStringTrieResult firstForCodePoint(UChar32 cp);

/**
     * Traverses the trie from the current state for this input char16_t.
     * @param uchar Input char value. Values below 0 and above 0xffff will never match.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    UStringTrieResult next(int32_t uchar);

/**
     * Traverses the trie from the current state for the
     * one or two UTF-16 code units for this input code point.
     * @param cp A Unicode code point 0..0x10ffff.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    UStringTrieResult nextForCodePoint(UChar32 cp);

/**
     * Traverses the trie from the current state for this string.
     * Equivalent to
     * \code
     * Result result=current();
     * for(each c in s)
     *   if(!USTRINGTRIE_HAS_NEXT(result)) return USTRINGTRIE_NO_MATCH;
     *   result=next(c);
     * return result;
     * \endcode
     * @param s A string. Can be NULL if length is 0.
     * @param length The length of the string. Can be -1 if NUL-terminated.
     * @return The match/value Result.
     * @stable ICU 4.8
     */
    UStringTrieResult next(ConstChar16Ptr s, int32_t length);

/**
     * Returns a matching string's value if called immediately after
     * current()/first()/next() returned USTRINGTRIE_INTERMEDIATE_VALUE or USTRINGTRIE_FINAL_VALUE.
     * getValue() can be called multiple times.
     *
     * Do not call getValue() after USTRINGTRIE_NO_MATCH or USTRINGTRIE_NO_VALUE!
     * @return The value for the string so far.
     * @stable ICU 4.8
     */
    inline int32_t getValue() const {
        const char16_t *pos=pos_;
        int32_t leadUnit=*pos++;
        // U_ASSERT(leadUnit>=kMinValueLead);
        return leadUnit&kValueIsFinal ?
            readValue(pos, leadUnit&0x7fff) : readNodeValue(pos, leadUnit);
    }

/**
     * Determines whether all strings reachable from the current state
     * map to the same value.
     * @param uniqueValue Receives the unique value, if this function returns TRUE.
     *                    (output-only)
     * @return TRUE if all strings reachable from the current state
     *         map to the same value.
     * @stable ICU 4.8
     */
    inline UBool hasUniqueValue(int32_t &uniqueValue) const {
        const char16_t *pos=pos_;
        // Skip the rest of a pending linear-match node.
        return pos!=NULL && findUniqueValue(pos+remainingMatchLength_+1, FALSE, uniqueValue);
    }

/**
     * Finds each char16_t which continues the string from the current state.
     * That is, each char16_t c for which it would be next(c)!=USTRINGTRIE_NO_MATCH now.
     * @param out Each next char16_t is appended to this object.
     * @return the number of char16_ts which continue the string from here
     * @stable ICU 4.8
     */
    int32_t getNextUChars(Appendable &out) const;

/**
     * Iterator for all of the (string, value) pairs in a UCharsTrie.
     * @stable ICU 4.8
     */
    class U_COMMON_API Iterator : public UMemory {
    public:
        /**
         * Iterates from the root of a char16_t-serialized UCharsTrie.
         * @param trieUChars The trie char16_ts.
         * @param maxStringLength If 0, the iterator returns full strings.
         *                        Otherwise, the iterator returns strings with this maximum length.
         * @param errorCode Standard ICU error code. Its input value must
         *                  pass the U_SUCCESS() test, or else the function returns
         *                  immediately. Check for U_FAILURE() on output or use with
         *                  function chaining. (See User Guide for details.)
         * @stable ICU 4.8
         */
        Iterator(ConstChar16Ptr trieUChars, int32_t maxStringLength, UErrorCode &errorCode);

/**
         * Iterates from the current state of the specified UCharsTrie.
         * @param trie The trie whose state will be copied for iteration.
         * @param maxStringLength If 0, the iterator returns full strings.
         *                        Otherwise, the iterator returns strings with this maximum length.
         * @param errorCode Standard ICU error code. Its input value must
         *                  pass the U_SUCCESS() test, or else the function returns
         *                  immediately. Check for U_FAILURE() on output or use with
         *                  function chaining. (See User Guide for details.)
         * @stable ICU 4.8
         */
        Iterator(const UCharsTrie &trie, int32_t maxStringLength, UErrorCode &errorCode);

/**
         * Destructor.
         * @stable ICU 4.8
         */
        ~Iterator();

/**
         * Resets this iterator to its initial state.
         * @return *this
         * @stable ICU 4.8
         */
        Iterator &reset();

/**
         * @return TRUE if there are more elements.
         * @stable ICU 4.8
         */
        UBool hasNext() const;

/**
         * Finds the next (string, value) pair if there is one.
         *
         * If the string is truncated to the maximum length and does not
         * have a real value, then the value is set to -1.
         * In this case, this "not a real value" is indistinguishable from
         * a real value of -1.
         * @param errorCode Standard ICU error code. Its input value must
         *                  pass the U_SUCCESS() test, or else the function returns
         *                  immediately. Check for U_FAILURE() on output or use with
         *                  function chaining. (See User Guide for details.)
         * @return TRUE if there is another element.
         * @stable ICU 4.8
         */
        UBool next(UErrorCode &errorCode);

/**
         * @return The string for the last successful next().
         * @stable ICU 4.8
         */
        const UnicodeString &getString() const { return str_; }
        /**
         * @return The value for the last successful next().
         * @stable ICU 4.8
         */
        int32_t getValue() const { return value_; }

private:
        UBool truncateAndStop() {
            pos_=NULL;
            value_=-1;  // no real value for str
            return TRUE;
        }

const char16_t *branchNext(const char16_t *pos, int32_t length, UErrorCode &errorCode);

const char16_t *uchars_;
        const char16_t *pos_;
        const char16_t *initialPos_;
        int32_t remainingMatchLength_;
        int32_t initialRemainingMatchLength_;
        UBool skipValue_;  // Skip intermediate value which was already delivered.

UnicodeString str_;
        int32_t maxLength_;
        int32_t value_;

// The stack stores pairs of integers for backtracking to another
        // outbound edge of a branch node.
        // The first integer is an offset from uchars_.
        // The second integer has the str_.length() from before the node in bits 15..0,
        // and the remaining branch length in bits 31..16.
        // (We could store the remaining branch length minus 1 in bits 30..16 and not use the sign bit,
        // but the code looks more confusing that way.)
        UVector32 *stack_;
    };

private:
    friend class UCharsTrieBuilder;

/**
     * Constructs a UCharsTrie reader instance.
     * Unlike the public constructor which just aliases an array,
     * this constructor adopts the builder's array.
     * This constructor is only called by the builder.
     */
    UCharsTrie(char16_t *adoptUChars, const char16_t *trieUChars)
            : ownedArray_(adoptUChars), uchars_(trieUChars),
              pos_(uchars_), remainingMatchLength_(-1) {}

// No assignment operator.
    UCharsTrie &operator=(const UCharsTrie &other);

inline void stop() {
        pos_=NULL;
    }

// Reads a compact 32-bit integer.
    // pos is already after the leadUnit, and the lead unit has bit 15 reset.
    static inline int32_t readValue(const char16_t *pos, int32_t leadUnit) {
        int32_t value;
        if(leadUnit<kMinTwoUnitValueLead) {
            value=leadUnit;
        } else if(leadUnit<kThreeUnitValueLead) {
            value=((leadUnit-kMinTwoUnitValueLead)<<16)|*pos;
        } else {
            value=(pos[0]<<16)|pos[1];
        }
        return value;
    }
    static inline const char16_t *skipValue(const char16_t *pos, int32_t leadUnit) {
        if(leadUnit>=kMinTwoUnitValueLead) {
            if(leadUnit<kThreeUnitValueLead) {
                ++pos;
            } else {
                pos+=2;
            }
        }
        return pos;
    }
    static inline const char16_t *skipValue(const char16_t *pos) {
        int32_t leadUnit=*pos++;
        return skipValue(pos, leadUnit&0x7fff);
    }

static inline int32_t readNodeValue(const char16_t *pos, int32_t leadUnit) {
        // U_ASSERT(kMinValueLead<=leadUnit && leadUnit<kValueIsFinal);
        int32_t value;
        if(leadUnit<kMinTwoUnitNodeValueLead) {
            value=(leadUnit>>6)-1;
        } else if(leadUnit<kThreeUnitNodeValueLead) {
            value=(((leadUnit&0x7fc0)-kMinTwoUnitNodeValueLead)<<10)|*pos;
        } else {
            value=(pos[0]<<16)|pos[1];
        }
        return value;
    }
    static inline const char16_t *skipNodeValue(const char16_t *pos, int32_t leadUnit) {
        // U_ASSERT(kMinValueLead<=leadUnit && leadUnit<kValueIsFinal);
        if(leadUnit>=kMinTwoUnitNodeValueLead) {
            if(leadUnit<kThreeUnitNodeValueLead) {
                ++pos;
            } else {
                pos+=2;
            }
        }
        return pos;
    }

static inline const char16_t *jumpByDelta(const char16_t *pos) {
        int32_t delta=*pos++;
        if(delta>=kMinTwoUnitDeltaLead) {
            if(delta==kThreeUnitDeltaLead) {
                delta=(pos[0]<<16)|pos[1];
                pos+=2;
            } else {
                delta=((delta-kMinTwoUnitDeltaLead)<<16)|*pos++;
            }
        }
        return pos+delta;
    }

static const char16_t *skipDelta(const char16_t *pos) {
        int32_t delta=*pos++;
        if(delta>=kMinTwoUnitDeltaLead) {
            if(delta==kThreeUnitDeltaLead) {
                pos+=2;
            } else {
                ++pos;
            }
        }
        return pos;
    }

static inline UStringTrieResult valueResult(int32_t node) {
        return (UStringTrieResult)(USTRINGTRIE_INTERMEDIATE_VALUE-(node>>15));
    }

// Handles a branch node for both next(uchar) and next(string).
    UStringTrieResult branchNext(const char16_t *pos, int32_t length, int32_t uchar);

// Requires remainingLength_<0.
    UStringTrieResult nextImpl(const char16_t *pos, int32_t uchar);

// Helper functions for hasUniqueValue().
    // Recursively finds a unique value (or whether there is not a unique one)
    // from a branch.
    static const char16_t *findUniqueValueFromBranch(const char16_t *pos, int32_t length,
                                                  UBool haveUniqueValue, int32_t &uniqueValue);
    // Recursively finds a unique value (or whether there is not a unique one)
    // starting from a position on a node lead unit.
    static UBool findUniqueValue(const char16_t *pos, UBool haveUniqueValue, int32_t &uniqueValue);

// Helper functions for getNextUChars().
    // getNextUChars() when pos is on a branch node.
    static void getNextBranchUChars(const char16_t *pos, int32_t length, Appendable &out);

// UCharsTrie data structure
    //
    // The trie consists of a series of char16_t-serialized nodes for incremental
    // Unicode string/char16_t sequence matching. (char16_t=16-bit unsigned integer)
    // The root node is at the beginning of the trie data.
    //
    // Types of nodes are distinguished by their node lead unit ranges.
    // After each node, except a final-value node, another node follows to
    // encode match values or continue matching further units.
    //
    // Node types:
    //  - Final-value node: Stores a 32-bit integer in a compact, variable-length format.
    //    The value is for the string/char16_t sequence so far.
    //  - Match node, optionally with an intermediate value in a different compact format.
    //    The value, if present, is for the string/char16_t sequence so far.
    //
    //  Aside from the value, which uses the node lead unit's high bits:
    //
    //  - Linear-match node: Matches a number of units.
    //  - Branch node: Branches to other nodes according to the current input unit.
    //    The node unit is the length of the branch (number of units to select from)
    //    minus 1. It is followed by a sub-node:
    //    - If the length is at most kMaxBranchLinearSubNodeLength, then
    //      there are length-1 (key, value) pairs and then one more comparison unit.
    //      If one of the key units matches, then the value is either a final value for
    //      the string so far, or a "jump" delta to the next node.
    //      If the last unit matches, then matching continues with the next node.
    //      (Values have the same encoding as final-value nodes.)
    //    - If the length is greater than kMaxBranchLinearSubNodeLength, then
    //      there is one unit and one "jump" delta.
    //      If the input unit is less than the sub-node unit, then "jump" by delta to
    //      the next sub-node which will have a length of length/2.
    //      (The delta has its own compact encoding.)
    //      Otherwise, skip the "jump" delta to the next sub-node
    //      which will have a length of length-length/2.

// Match-node lead unit values, after masking off intermediate-value bits:

// 0000..002f: Branch node. If node!=0 then the length is node+1, otherwise
    // the length is one more than the next unit.

// For a branch sub-node with at most this many entries, we drop down
    // to a linear search.
    static const int32_t kMaxBranchLinearSubNodeLength=5;

// 0030..003f: Linear-match node, match 1..16 units and continue reading the next node.
    static const int32_t kMinLinearMatch=0x30;
    static const int32_t kMaxLinearMatchLength=0x10;

// Match-node lead unit bits 14..6 for the optional intermediate value.
    // If these bits are 0, then there is no intermediate value.
    // Otherwise, see the *NodeValue* constants below.
    static const int32_t kMinValueLead=kMinLinearMatch+kMaxLinearMatchLength;  // 0x0040
    static const int32_t kNodeTypeMask=kMinValueLead-1;  // 0x003f

// A final-value node has bit 15 set.
    static const int32_t kValueIsFinal=0x8000;

// Compact value: After testing and masking off bit 15, use the following thresholds.
    static const int32_t kMaxOneUnitValue=0x3fff;

static const int32_t kMinTwoUnitValueLead=kMaxOneUnitValue+1;  // 0x4000
    static const int32_t kThreeUnitValueLead=0x7fff;

static const int32_t kMaxTwoUnitValue=((kThreeUnitValueLead-kMinTwoUnitValueLead)<<16)-1;  // 0x3ffeffff

// Compact intermediate-value integer, lead unit shared with a branch or linear-match node.
    static const int32_t kMaxOneUnitNodeValue=0xff;
    static const int32_t kMinTwoUnitNodeValueLead=kMinValueLead+((kMaxOneUnitNodeValue+1)<<6);  // 0x4040
    static const int32_t kThreeUnitNodeValueLead=0x7fc0;

static const int32_t kMaxTwoUnitNodeValue=
        ((kThreeUnitNodeValueLead-kMinTwoUnitNodeValueLead)<<10)-1;  // 0xfdffff

// Compact delta integers.
    static const int32_t kMaxOneUnitDelta=0xfbff;
    static const int32_t kMinTwoUnitDeltaLead=kMaxOneUnitDelta+1;  // 0xfc00
    static const int32_t kThreeUnitDeltaLead=0xffff;

static const int32_t kMaxTwoUnitDelta=((kThreeUnitDeltaLead-kMinTwoUnitDeltaLead)<<16)-1;  // 0x03feffff

char16_t *ownedArray_;

// Fixed value referencing the UCharsTrie words.
    const char16_t *uchars_;

// Iterator variables.

// Pointer to next trie unit to read. NULL if no more matches.
    const char16_t *pos_;
    // Remaining length of a linear-match node, minus 1. Negative if not in such a node.
    int32_t remainingMatchLength_;
};

U_NAMESPACE_END

#endif  // __UCHARSTRIE_H__