golden hour

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

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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: ubiditransform.h

/*
******************************************************************************
*
* © 2016 and later: Unicode, Inc. and others.
* License & terms of use: http://www.unicode.org/copyright.html
*
******************************************************************************
*   file name:  ubiditransform.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2016jul24
*   created by: Lina Kemmel
*
*/

#ifndef UBIDITRANSFORM_H
#define UBIDITRANSFORM_H

#include "unicode/utypes.h"
#include "unicode/ubidi.h"
#include "unicode/uchar.h"
#include "unicode/localpointer.h"

/**
 * \file
 * \brief Bidi Transformations
 */

/**
 * `UBiDiOrder` indicates the order of text.
 *
 * This bidi transformation engine supports all possible combinations (4 in
 * total) of input and output text order:
 *
 * - <logical input, visual output>: unless the output direction is RTL, this
 * corresponds to a normal operation of the Bidi algorithm as described in the
 * Unicode Technical Report and implemented by `UBiDi` when the
 * reordering mode is set to `UBIDI_REORDER_DEFAULT`. Visual RTL
 * mode is not supported by `UBiDi` and is accomplished through
 * reversing a visual LTR string,
 *
 * - <visual input, logical output>: unless the input direction is RTL, this
 * corresponds to an "inverse bidi algorithm" in `UBiDi` with the
 * reordering mode set to `UBIDI_REORDER_INVERSE_LIKE_DIRECT`.
 * Visual RTL mode is not not supported by `UBiDi` and is
 * accomplished through reversing a visual LTR string,
 *
 * - <logical input, logical output>: if the input and output base directions
 * mismatch, this corresponds to the `UBiDi` implementation with the
 * reordering mode set to `UBIDI_REORDER_RUNS_ONLY`; and if the
 * input and output base directions are identical, the transformation engine
 * will only handle character mirroring and Arabic shaping operations without
 * reordering,
 *
 * - <visual input, visual output>: this reordering mode is not supported by
 * the `UBiDi` engine; it implies character mirroring, Arabic
 * shaping, and - if the input/output base directions mismatch - string
 * reverse operations.
 * @see ubidi_setInverse
 * @see ubidi_setReorderingMode
 * @see UBIDI_REORDER_DEFAULT
 * @see UBIDI_REORDER_INVERSE_LIKE_DIRECT
 * @see UBIDI_REORDER_RUNS_ONLY
 * @stable ICU 58
 */
typedef enum {
 /** 0: Constant indicating a logical order.
 * This is the default for input text.
 * @stable ICU 58
 */
 UBIDI_LOGICAL = 0,
 /** 1: Constant indicating a visual order.
 * This is a default for output text.
 * @stable ICU 58
 */
 UBIDI_VISUAL
} UBiDiOrder;

/**
 * <code>UBiDiMirroring</code> indicates whether or not characters with the
 * "mirrored" property in RTL runs should be replaced with their mirror-image
 * counterparts.
 * @see UBIDI_DO_MIRRORING
 * @see ubidi_setReorderingOptions
 * @see ubidi_writeReordered
 * @see ubidi_writeReverse
 * @stable ICU 58
 */
typedef enum {
 /** 0: Constant indicating that character mirroring should not be
 * performed.
 * This is the default.
 * @stable ICU 58
 */
 UBIDI_MIRRORING_OFF = 0,
 /** 1: Constant indicating that character mirroring should be performed.
 * This corresponds to calling <code>ubidi_writeReordered</code> or
 * <code>ubidi_writeReverse</code> with the
 * <code>UBIDI_DO_MIRRORING</code> option bit set.
 * @stable ICU 58
 */
 UBIDI_MIRRORING_ON
} UBiDiMirroring;

/**
 * Forward declaration of the <code>UBiDiTransform</code> structure that stores
 * information used by the layout transformation engine.
 * @stable ICU 58
 */
typedef struct UBiDiTransform UBiDiTransform;

/**
 * Performs transformation of text from the bidi layout defined by the input
 * ordering scheme to the bidi layout defined by the output ordering scheme,
 * and applies character mirroring and Arabic shaping operations.
 * In terms of <code>UBiDi</code>, such a transformation implies:
 * <ul>
 * <li>calling <code>ubidi_setReorderingMode</code> as needed (when the
 * reordering mode is other than normal),</li>
 * <li>calling <code>ubidi_setInverse</code> as needed (when text should be
 * transformed from a visual to a logical form),</li>
 * <li>resolving embedding levels of each character in the input text by
 * calling <code>ubidi_setPara</code>,</li>
 * <li>reordering the characters based on the computed embedding levels, also
 * performing character mirroring as needed, and streaming the result to the
 * output, by calling <code>ubidi_writeReordered</code>,</li>
 * <li>performing Arabic digit and letter shaping on the output text by calling
 * <code>u_shapeArabic</code>.</li>
 * </ul>
 * An "ordering scheme" encompasses the base direction and the order of text,
 * and these characteristics must be defined by the caller for both input and
 * output explicitly .
 * There are 36 possible combinations of <input, output> ordering schemes,
 * which are partially supported by <code>UBiDi</code> already. Examples of the
 * currently supported combinations:
 * <ul>
 * <li><Logical LTR, Visual LTR>: this is equivalent to calling
 * <code>ubidi_setPara</code> with <code>paraLevel == UBIDI_LTR</code>,</li>
 * <li><Logical RTL, Visual LTR>: this is equivalent to calling
 * <code>ubidi_setPara</code> with <code>paraLevel == UBIDI_RTL</code>,</li>
 * <li><Logical Default ("Auto") LTR, Visual LTR>: this is equivalent to
 * calling <code>ubidi_setPara</code> with
 * <code>paraLevel == UBIDI_DEFAULT_LTR</code>,</li>
 * <li><Logical Default ("Auto") RTL, Visual LTR>: this is equivalent to
 * calling <code>ubidi_setPara</code> with
 * <code>paraLevel == UBIDI_DEFAULT_RTL</code>,</li>
 * <li><Visual LTR, Logical LTR>: this is equivalent to
 * calling <code>ubidi_setInverse(UBiDi*, TRUE)</code> and then
 * <code>ubidi_setPara</code> with <code>paraLevel == UBIDI_LTR</code>,</li>
 * <li><Visual LTR, Logical RTL>: this is equivalent to
 * calling <code>ubidi_setInverse(UBiDi*, TRUE)</code> and then
 * <code>ubidi_setPara</code> with <code>paraLevel == UBIDI_RTL</code>.</li>
 * </ul>
 * All combinations that involve the Visual RTL scheme are unsupported by
 * <code>UBiDi</code>, for instance:
 * <ul>
 * <li><Logical LTR, Visual RTL>,</li>
 * <li><Visual RTL, Logical RTL>.</li>
 * </ul>
 * Example of usage of the transformation engine: 
 * <pre>
 * \code
 * UChar text1[] = {'a', 'b', 'c', 0x0625, '1', 0};
 * UChar text2[] = {'a', 'b', 'c', 0x0625, '1', 0};
 * UErrorCode errorCode = U_ZERO_ERROR;
 * // Run a transformation.
 * ubiditransform_transform(pBidiTransform,
 * text1, -1, text2, -1,
 * UBIDI_LTR, UBIDI_VISUAL,
 * UBIDI_RTL, UBIDI_LOGICAL,
 * UBIDI_MIRRORING_OFF,
 * U_SHAPE_DIGITS_AN2EN | U_SHAPE_DIGIT_TYPE_AN_EXTENDED,
 * &errorCode);
 * // Do something with text2.
 * text2[4] = '2';
 * // Run a reverse transformation.
 * ubiditransform_transform(pBidiTransform,
 * text2, -1, text1, -1,
 * UBIDI_RTL, UBIDI_LOGICAL,
 * UBIDI_LTR, UBIDI_VISUAL,
 * UBIDI_MIRRORING_OFF,
 * U_SHAPE_DIGITS_EN2AN | U_SHAPE_DIGIT_TYPE_AN_EXTENDED,
 * &errorCode);
 *\endcode
 * </pre>
 * 
 *
 * @param pBiDiTransform A pointer to a <code>UBiDiTransform</code> object
 * allocated with <code>ubiditransform_open()</code> or
 * <code>NULL</code>.
 * This object serves for one-time setup to amortize initialization
 * overheads. Use of this object is not thread-safe. All other threads
 * should allocate a new <code>UBiDiTransform</code> object by calling
 * <code>ubiditransform_open()</code> before using it. Alternatively,
 * a caller can set this parameter to <code>NULL</code>, in which case
 * the object will be allocated by the engine on the fly.
 * @param src A pointer to the text that the Bidi layout transformations will
 * be performed on.
 * Note: the text must be (at least)
 * <code>srcLength</code> long.
 * @param srcLength The length of the text, in number of UChars. If
 * <code>length == -1</code> then the text must be zero-terminated.
 * @param dest A pointer to where the processed text is to be copied.
 * @param destSize The size of the <code>dest</code> buffer, in number of
 * UChars. If the <code>U_SHAPE_LETTERS_UNSHAPE</code> option is set,
 * then the destination length could be as large as
 * <code>srcLength * 2</code>. Otherwise, the destination length will
 * not exceed <code>srcLength</code>. If the caller reserves the last
 * position for zero-termination, it should be excluded from
 * <code>destSize</code>.
 * <code>destSize == -1</code> is allowed and makes sense when
 * <code>dest</code> was holds some meaningful value, e.g. that of
 * <code>src</code>. In this case <code>dest</code> must be
 * zero-terminated.
 * @param inParaLevel A base embedding level of the input as defined in
 * <code>ubidi_setPara</code> documentation for the
 * <code>paraLevel</code> parameter.
 * @param inOrder An order of the input, which can be one of the
 * <code>UBiDiOrder</code> values.
 * @param outParaLevel A base embedding level of the output as defined in
 * <code>ubidi_setPara</code> documentation for the
 * <code>paraLevel</code> parameter.
 * @param outOrder An order of the output, which can be one of the
 * <code>UBiDiOrder</code> values.
 * @param doMirroring Indicates whether or not to perform character mirroring,
 * and can accept one of the <code>UBiDiMirroring</code> values.
 * @param shapingOptions Arabic digit and letter shaping options defined in the
 * ushape.h documentation.
 * Note: Direction indicator options are computed by
 * the transformation engine based on the effective ordering schemes, so
 * user-defined direction indicators will be ignored.
 * @param pErrorCode A pointer to an error code value.
 *
 * @return The destination length, i.e. the number of UChars written to
 * <code>dest</code>. If the transformation fails, the return value
 * will be 0 (and the error code will be written to
 * <code>pErrorCode</code>).
 *
 * @see UBiDiLevel
 * @see UBiDiOrder
 * @see UBiDiMirroring
 * @see ubidi_setPara
 * @see u_shapeArabic
 * @stable ICU 58
 */
U_STABLE uint32_t U_EXPORT2
ubiditransform_transform(UBiDiTransform *pBiDiTransform,
 const UChar *src, int32_t srcLength,
 UChar *dest, int32_t destSize,
 UBiDiLevel inParaLevel, UBiDiOrder inOrder,
 UBiDiLevel outParaLevel, UBiDiOrder outOrder,
 UBiDiMirroring doMirroring, uint32_t shapingOptions,
 UErrorCode *pErrorCode);

/**
 * Allocates a <code>UBiDiTransform</code> object. This object can be reused,
 * e.g. with different ordering schemes, mirroring or shaping options.
 * Note:The object can only be reused in the same thread.
 * All other threads should allocate a new <code>UBiDiTransform</code> object
 * before using it.
 * Example of usage:
 * <pre>
 * \code
 * UErrorCode errorCode = U_ZERO_ERROR;
 * // Open a new UBiDiTransform.
 * UBiDiTransform* transform = ubiditransform_open(&errorCode);
 * // Run a transformation.
 * ubiditransform_transform(transform,
 * text1, -1, text2, -1,
 * UBIDI_RTL, UBIDI_LOGICAL,
 * UBIDI_LTR, UBIDI_VISUAL,
 * UBIDI_MIRRORING_ON,
 * U_SHAPE_DIGITS_EN2AN,
 * &errorCode);
 * // Do something with the output text and invoke another transformation using
 * // that text as input.
 * ubiditransform_transform(transform,
 * text2, -1, text3, -1,
 * UBIDI_LTR, UBIDI_VISUAL,
 * UBIDI_RTL, UBIDI_VISUAL,
 * UBIDI_MIRRORING_ON,
 * 0, &errorCode);
 *\endcode
 * </pre>
 * 
 * The <code>UBiDiTransform</code> object must be deallocated by calling
 * <code>ubiditransform_close()</code>.
 *
 * @return An empty <code>UBiDiTransform</code> object.
 * @stable ICU 58
 */
U_STABLE UBiDiTransform* U_EXPORT2
ubiditransform_open(UErrorCode *pErrorCode);

/**
 * Deallocates the given <code>UBiDiTransform</code> object.
 * @stable ICU 58
 */
U_STABLE void U_EXPORT2
ubiditransform_close(UBiDiTransform *pBidiTransform);

#if U_SHOW_CPLUSPLUS_API

U_NAMESPACE_BEGIN

/**
 * \class LocalUBiDiTransformPointer
 * "Smart pointer" class, closes a UBiDiTransform via ubiditransform_close().
 * For most methods see the LocalPointerBase base class.
 *
 * @see LocalPointerBase
 * @see LocalPointer
 * @stable ICU 58
 */
U_DEFINE_LOCAL_OPEN_POINTER(LocalUBiDiTransformPointer, UBiDiTransform, ubiditransform_close);

U_NAMESPACE_END

#endif