golden hour

/opt/alt/libicu65/usr/include/unicode

File/Folder	Size	Actions
alphaindex.h	26.48 KB
appendable.h	8.49 KB
basictz.h	9.15 KB
brkiter.h	27.8 KB
bytestream.h	9.6 KB
bytestrie.h	20.77 KB
bytestriebuilder.h	7.08 KB
calendar.h	105.74 KB
caniter.h	7.43 KB
casemap.h	25.33 KB
char16ptr.h	7.22 KB
chariter.h	24.05 KB
choicfmt.h	23.91 KB
coleitr.h	13.76 KB
coll.h	56.23 KB
compactdecimalformat.h	6.88 KB
curramt.h	3.76 KB
currpinf.h	7.3 KB
currunit.h	4.05 KB
datefmt.h	40.67 KB
dbbi.h	1.19 KB
dcfmtsym.h	20.13 KB
decimfmt.h	87.38 KB
docmain.h	6.97 KB
dtfmtsym.h	37.7 KB
dtintrv.h	3.84 KB
dtitvfmt.h	46.63 KB
dtitvinf.h	18.51 KB
dtptngen.h	25.08 KB
dtrule.h	8.68 KB
edits.h	20.74 KB
enumset.h	2.08 KB
errorcode.h	4.84 KB
fieldpos.h	8.69 KB
filteredbrk.h	5.37 KB
fmtable.h	24.42 KB
format.h	12.5 KB
formattedvalue.h	10.27 KB
fpositer.h	3.04 KB
gender.h	3.33 KB
gregocal.h	31.71 KB
icudataver.h	1.03 KB
icuplug.h	11.88 KB
idna.h	12.7 KB
listformatter.h	9.47 KB
localebuilder.h	11.27 KB
localematcher.h	22.5 KB
localpointer.h	19.69 KB
locdspnm.h	7.12 KB
locid.h	47.4 KB
measfmt.h	11.33 KB
measunit.h	93.31 KB
measure.h	4.32 KB
messagepattern.h	33.71 KB
msgfmt.h	44.11 KB
normalizer2.h	34.03 KB
normlzr.h	30.94 KB
nounit.h	2.69 KB
numberformatter.h	86.31 KB
numberrangeformatter.h	30.14 KB
numfmt.h	49.81 KB
numsys.h	7.19 KB
parseerr.h	3.08 KB
parsepos.h	5.56 KB
platform.h	28.08 KB
plurfmt.h	25.2 KB
plurrule.h	18.39 KB
ptypes.h	3.49 KB
putil.h	6.33 KB
rbbi.h	26.58 KB
rbnf.h	48.73 KB
rbtz.h	15.6 KB
regex.h	84.36 KB
region.h	9.18 KB
reldatefmt.h	22.62 KB
rep.h	9.37 KB
resbund.h	18.07 KB
schriter.h	6.32 KB
scientificnumberformatter.h	6.4 KB
search.h	22.22 KB
selfmt.h	14.3 KB
simpleformatter.h	12.59 KB
simpletz.h	45.44 KB
smpdtfmt.h	70.97 KB
sortkey.h	11.18 KB
std_string.h	1.05 KB
strenum.h	9.92 KB
stringoptions.h	5.79 KB
stringpiece.h	7.38 KB
stringtriebuilder.h	15.33 KB
stsearch.h	21.3 KB
symtable.h	4.27 KB
tblcoll.h	36.61 KB
timezone.h	41.02 KB
tmunit.h	3.38 KB
tmutamt.h	4.9 KB
tmutfmt.h	7.85 KB
translit.h	65.82 KB
tzfmt.h	42.89 KB
tznames.h	16.85 KB
tzrule.h	35.37 KB
tztrans.h	6.12 KB
ubidi.h	89.56 KB
ubiditransform.h	12.65 KB
ubrk.h	23.97 KB
ucal.h	56.9 KB
ucasemap.h	15.18 KB
ucat.h	5.36 KB
uchar.h	140.56 KB
ucharstrie.h	22.58 KB
ucharstriebuilder.h	7.21 KB
uchriter.h	13.2 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	61.46 KB
ucoleitr.h	9.46 KB
uconfig.h	12.07 KB
ucpmap.h	5.53 KB
ucptrie.h	22.46 KB
ucsdet.h	14.67 KB
ucurr.h	16.12 KB
udat.h	60.88 KB
udata.h	15.56 KB
udateintervalformat.h	10.03 KB
udatpg.h	26.01 KB
udisplaycontext.h	5.89 KB
uenum.h	7.78 KB
ufieldpositer.h	4.36 KB
uformattable.h	10.94 KB
uformattedvalue.h	12.14 KB
ugender.h	2 KB
uidna.h	33.37 KB
uiter.h	22.77 KB
uldnames.h	10.45 KB
ulistformatter.h	8.83 KB
uloc.h	52.54 KB
ulocdata.h	11.26 KB
umachine.h	14.53 KB
umisc.h	1.33 KB
umsg.h	24.23 KB
umutablecptrie.h	8.24 KB
unifilt.h	3.96 KB
unifunct.h	4.04 KB
unimatch.h	6.1 KB
unirepl.h	3.38 KB
uniset.h	64.9 KB
unistr.h	170.43 KB
unorm.h	20.52 KB
unorm2.h	24.66 KB
unum.h	53.62 KB
unumberformatter.h	25.36 KB
unumsys.h	7.21 KB
uobject.h	10.68 KB
upluralrules.h	7.88 KB
uregex.h	72.05 KB
uregion.h	9.84 KB
ureldatefmt.h	17.26 KB
urename.h	130.97 KB
urep.h	5.38 KB
ures.h	36.54 KB
uscript.h	26.87 KB
usearch.h	38.12 KB
uset.h	40 KB
usetiter.h	9.55 KB
ushape.h	18 KB
uspoof.h	65.9 KB
usprep.h	8.14 KB
ustdio.h	38.54 KB
ustream.h	1.89 KB
ustring.h	72.47 KB
ustringtrie.h	3.15 KB
utext.h	58.13 KB
utf.h	7.86 KB
utf16.h	23.32 KB
utf32.h	763 B
utf8.h	30.96 KB
utf_old.h	45.83 KB
utmscale.h	13.78 KB
utrace.h	15.73 KB
utrans.h	25.52 KB
utypes.h	30.74 KB
uvernum.h	6.67 KB
uversion.h	6 KB
vtzone.h	20.3 KB

Edit: bytestriebuilder.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*   Copyright (C) 2010-2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  bytestriebuilder.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2010sep25
*   created by: Markus W. Scherer
*/

/**
 * \file
 * \brief C++ API: Builder for icu::BytesTrie
 */

#ifndef __BYTESTRIEBUILDER_H__
#define __BYTESTRIEBUILDER_H__

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#include "unicode/bytestrie.h"
#include "unicode/stringpiece.h"
#include "unicode/stringtriebuilder.h"

U_NAMESPACE_BEGIN

class BytesTrieElement;
class CharString;
/**
 * Builder class for BytesTrie.
 *
 * This class is not intended for public subclassing.
 * @stable ICU 4.8
 */
class U_COMMON_API BytesTrieBuilder : public StringTrieBuilder {
public:
    /**
     * Constructs an empty builder.
     * @param errorCode Standard ICU error code.
     * @stable ICU 4.8
     */
    BytesTrieBuilder(UErrorCode &errorCode);

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

/**
     * Adds a (byte sequence, value) pair.
     * The byte sequence must be unique.
     * The bytes will be copied; the builder does not keep
     * a reference to the input StringPiece or its data().
     * @param s The input byte sequence.
     * @param value The value associated with this byte sequence.
     * @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 *this
     * @stable ICU 4.8
     */
    BytesTrieBuilder &add(StringPiece s, int32_t value, UErrorCode &errorCode);

/**
     * Builds a BytesTrie for the add()ed data.
     * Once built, no further data can be add()ed until clear() is called.
     *
     * A BytesTrie cannot be empty. At least one (byte sequence, value) pair
     * must have been add()ed.
     *
     * This method passes ownership of the builder's internal result array to the new trie object.
     * Another call to any build() variant will re-serialize the trie.
     * After clear() has been called, a new array will be used as well.
     * @param buildOption Build option, see UStringTrieBuildOption.
     * @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 A new BytesTrie for the add()ed data.
     * @stable ICU 4.8
     */
    BytesTrie *build(UStringTrieBuildOption buildOption, UErrorCode &errorCode);

/**
     * Builds a BytesTrie for the add()ed data and byte-serializes it.
     * Once built, no further data can be add()ed until clear() is called.
     *
     * A BytesTrie cannot be empty. At least one (byte sequence, value) pair
     * must have been add()ed.
     *
     * Multiple calls to buildStringPiece() return StringPieces referring to the
     * builder's same byte array, without rebuilding.
     * If buildStringPiece() is called after build(), the trie will be
     * re-serialized into a new array.
     * If build() is called after buildStringPiece(), the trie object will become
     * the owner of the previously returned array.
     * After clear() has been called, a new array will be used as well.
     * @param buildOption Build option, see UStringTrieBuildOption.
     * @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 A StringPiece which refers to the byte-serialized BytesTrie for the add()ed data.
     * @stable ICU 4.8
     */
    StringPiece buildStringPiece(UStringTrieBuildOption buildOption, UErrorCode &errorCode);

/**
     * Removes all (byte sequence, value) pairs.
     * New data can then be add()ed and a new trie can be built.
     * @return *this
     * @stable ICU 4.8
     */
    BytesTrieBuilder &clear();

private:
    BytesTrieBuilder(const BytesTrieBuilder &other);  // no copy constructor
    BytesTrieBuilder &operator=(const BytesTrieBuilder &other);  // no assignment operator

void buildBytes(UStringTrieBuildOption buildOption, UErrorCode &errorCode);

virtual int32_t getElementStringLength(int32_t i) const;
    virtual char16_t getElementUnit(int32_t i, int32_t byteIndex) const;
    virtual int32_t getElementValue(int32_t i) const;

virtual int32_t getLimitOfLinearMatch(int32_t first, int32_t last, int32_t byteIndex) const;

virtual int32_t countElementUnits(int32_t start, int32_t limit, int32_t byteIndex) const;
    virtual int32_t skipElementsBySomeUnits(int32_t i, int32_t byteIndex, int32_t count) const;
    virtual int32_t indexOfElementWithNextUnit(int32_t i, int32_t byteIndex, char16_t byte) const;

virtual UBool matchNodesCanHaveValues() const { return FALSE; }

virtual int32_t getMaxBranchLinearSubNodeLength() const { return BytesTrie::kMaxBranchLinearSubNodeLength; }
    virtual int32_t getMinLinearMatch() const { return BytesTrie::kMinLinearMatch; }
    virtual int32_t getMaxLinearMatchLength() const { return BytesTrie::kMaxLinearMatchLength; }

/**
     * @internal (private)
     */
    class BTLinearMatchNode : public LinearMatchNode {
    public:
        BTLinearMatchNode(const char *units, int32_t len, Node *nextNode);
        virtual UBool operator==(const Node &other) const;
        virtual void write(StringTrieBuilder &builder);
    private:
        const char *s;
    };
    
    virtual Node *createLinearMatchNode(int32_t i, int32_t byteIndex, int32_t length,
                                        Node *nextNode) const;

UBool ensureCapacity(int32_t length);
    virtual int32_t write(int32_t byte);
    int32_t write(const char *b, int32_t length);
    virtual int32_t writeElementUnits(int32_t i, int32_t byteIndex, int32_t length);
    virtual int32_t writeValueAndFinal(int32_t i, UBool isFinal);
    virtual int32_t writeValueAndType(UBool hasValue, int32_t value, int32_t node);
    virtual int32_t writeDeltaTo(int32_t jumpTarget);

CharString *strings;  // Pointer not object so we need not #include internal charstr.h.
    BytesTrieElement *elements;
    int32_t elementsCapacity;
    int32_t elementsLength;

// Byte serialization of the trie.
    // Grows from the back: bytesLength measures from the end of the buffer!
    char *bytes;
    int32_t bytesCapacity;
    int32_t bytesLength;
};

U_NAMESPACE_END

#endif /* U_SHOW_CPLUSPLUS_API */

#endif  // __BYTESTRIEBUILDER_H__