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Name	Size	Permission
alphaindex.h	26.42 KB	-rw-r--r--
appendable.h	8.43 KB	-rw-r--r--
basictz.h	8.84 KB	-rw-r--r--
brkiter.h	27.64 KB	-rw-r--r--
bytestream.h	9.54 KB	-rw-r--r--
bytestrie.h	19.26 KB	-rw-r--r--
bytestriebuilder.h	7.02 KB	-rw-r--r--
calendar.h	105.06 KB	-rw-r--r--
caniter.h	7.37 KB	-rw-r--r--
casemap.h	25.26 KB	-rw-r--r--
char16ptr.h	7.16 KB	-rw-r--r--
chariter.h	24 KB	-rw-r--r--
choicfmt.h	23.85 KB	-rw-r--r--
coleitr.h	13.7 KB	-rw-r--r--
coll.h	55.59 KB	-rw-r--r--
compactdecimalformat.h	6.81 KB	-rw-r--r--
curramt.h	3.69 KB	-rw-r--r--
currpinf.h	7.24 KB	-rw-r--r--
currunit.h	3.99 KB	-rw-r--r--
datefmt.h	40.37 KB	-rw-r--r--
dbbi.h	1.11 KB	-rw-r--r--
dcfmtsym.h	20.1 KB	-rw-r--r--
decimfmt.h	87.82 KB	-rw-r--r--
docmain.h	6.96 KB	-rw-r--r--
dtfmtsym.h	37.64 KB	-rw-r--r--
dtintrv.h	3.78 KB	-rw-r--r--
dtitvfmt.h	46.56 KB	-rw-r--r--
dtitvinf.h	18.46 KB	-rw-r--r--
dtptngen.h	25.08 KB	-rw-r--r--
dtrule.h	8.62 KB	-rw-r--r--
edits.h	20.67 KB	-rw-r--r--
enumset.h	2.08 KB	-rw-r--r--
errorcode.h	4.78 KB	-rw-r--r--
fieldpos.h	8.63 KB	-rw-r--r--
filteredbrk.h	5.24 KB	-rw-r--r--
fmtable.h	24.36 KB	-rw-r--r--
format.h	12.44 KB	-rw-r--r--
formattedvalue.h	9.73 KB	-rw-r--r--
fpositer.h	2.98 KB	-rw-r--r--
gender.h	3.27 KB	-rw-r--r--
gregocal.h	31.57 KB	-rw-r--r--
icudataver.h	1.03 KB	-rw-r--r--
icuplug.h	11.88 KB	-rw-r--r--
idna.h	12.63 KB	-rw-r--r--
listformatter.h	9.42 KB	-rw-r--r--
localebuilder.h	10.54 KB	-rw-r--r--
localpointer.h	19.69 KB	-rw-r--r--
locdspnm.h	7.06 KB	-rw-r--r--
locid.h	44.94 KB	-rw-r--r--
measfmt.h	11.44 KB	-rw-r--r--
measunit.h	88.17 KB	-rw-r--r--
measure.h	4.26 KB	-rw-r--r--
messagepattern.h	33.65 KB	-rw-r--r--
msgfmt.h	44.04 KB	-rw-r--r--
normalizer2.h	33.97 KB	-rw-r--r--
normlzr.h	30.74 KB	-rw-r--r--
nounit.h	2.63 KB	-rw-r--r--
numberformatter.h	84.62 KB	-rw-r--r--
numberrangeformatter.h	29.93 KB	-rw-r--r--
numfmt.h	49.35 KB	-rw-r--r--
numsys.h	7.13 KB	-rw-r--r--
parseerr.h	3.08 KB	-rw-r--r--
parsepos.h	5.5 KB	-rw-r--r--
platform.h	27.1 KB	-rw-r--r--
plurfmt.h	25.18 KB	-rw-r--r--
plurrule.h	18.33 KB	-rw-r--r--
ptypes.h	3.49 KB	-rw-r--r--
putil.h	6.33 KB	-rw-r--r--
rbbi.h	26.42 KB	-rw-r--r--
rbnf.h	49.79 KB	-rw-r--r--
rbtz.h	15.47 KB	-rw-r--r--
regex.h	84.3 KB	-rw-r--r--
region.h	9.12 KB	-rw-r--r--
reldatefmt.h	22.37 KB	-rw-r--r--
rep.h	9.5 KB	-rw-r--r--
resbund.h	18.01 KB	-rw-r--r--
schriter.h	6.26 KB	-rw-r--r--
scientificnumberformatter.h	6.32 KB	-rw-r--r--
search.h	22.21 KB	-rw-r--r--
selfmt.h	14.24 KB	-rw-r--r--
simpleformatter.h	12.53 KB	-rw-r--r--
simpletz.h	45.3 KB	-rw-r--r--
smpdtfmt.h	70.9 KB	-rw-r--r--
sortkey.h	11.12 KB	-rw-r--r--
std_string.h	1015 B	-rw-r--r--
strenum.h	10.04 KB	-rw-r--r--
stringoptions.h	5.79 KB	-rw-r--r--
stringpiece.h	6.46 KB	-rw-r--r--
stringtriebuilder.h	15.27 KB	-rw-r--r--
stsearch.h	21.29 KB	-rw-r--r--
symtable.h	4.21 KB	-rw-r--r--
tblcoll.h	36.4 KB	-rw-r--r--
timezone.h	41.2 KB	-rw-r--r--
tmunit.h	3.29 KB	-rw-r--r--
tmutamt.h	4.8 KB	-rw-r--r--
tmutfmt.h	7.79 KB	-rw-r--r--
translit.h	65.76 KB	-rw-r--r--
tzfmt.h	42.82 KB	-rw-r--r--
tznames.h	16.79 KB	-rw-r--r--
tzrule.h	35.32 KB	-rw-r--r--
tztrans.h	6.07 KB	-rw-r--r--
ubidi.h	89.56 KB	-rw-r--r--
ubiditransform.h	12.65 KB	-rw-r--r--
ubrk.h	23.97 KB	-rw-r--r--
ucal.h	55.54 KB	-rw-r--r--
ucasemap.h	15.18 KB	-rw-r--r--
ucat.h	5.36 KB	-rw-r--r--
uchar.h	140.66 KB	-rw-r--r--
ucharstrie.h	21.06 KB	-rw-r--r--
ucharstriebuilder.h	7.14 KB	-rw-r--r--
uchriter.h	13.14 KB	-rw-r--r--
uclean.h	11.21 KB	-rw-r--r--
ucnv.h	83.09 KB	-rw-r--r--
ucnv_cb.h	6.59 KB	-rw-r--r--
ucnv_err.h	20.99 KB	-rw-r--r--
ucnvsel.h	6.14 KB	-rw-r--r--
ucol.h	61.39 KB	-rw-r--r--
ucoleitr.h	9.46 KB	-rw-r--r--
uconfig.h	12.05 KB	-rw-r--r--
ucpmap.h	5.58 KB	-rw-r--r--
ucptrie.h	22.29 KB	-rw-r--r--
ucsdet.h	14.67 KB	-rw-r--r--
ucurr.h	16.15 KB	-rw-r--r--
udat.h	60.81 KB	-rw-r--r--
udata.h	15.53 KB	-rw-r--r--
udateintervalformat.h	10.03 KB	-rw-r--r--
udatpg.h	25.94 KB	-rw-r--r--
udisplaycontext.h	5.89 KB	-rw-r--r--
uenum.h	7.78 KB	-rw-r--r--
ufieldpositer.h	4.36 KB	-rw-r--r--
uformattable.h	10.94 KB	-rw-r--r--
uformattedvalue.h	12.14 KB	-rw-r--r--
ugender.h	2 KB	-rw-r--r--
uidna.h	33.37 KB	-rw-r--r--
uiter.h	22.77 KB	-rw-r--r--
uldnames.h	10.45 KB	-rw-r--r--
ulistformatter.h	8.83 KB	-rw-r--r--
uloc.h	50.75 KB	-rw-r--r--
ulocdata.h	11.26 KB	-rw-r--r--
umachine.h	13.19 KB	-rw-r--r--
umisc.h	1.33 KB	-rw-r--r--
umsg.h	24.23 KB	-rw-r--r--
umutablecptrie.h	8.28 KB	-rw-r--r--
unifilt.h	3.63 KB	-rw-r--r--
unifunct.h	3.98 KB	-rw-r--r--
unimatch.h	6.04 KB	-rw-r--r--
unirepl.h	3.32 KB	-rw-r--r--
uniset.h	64.88 KB	-rw-r--r--
unistr.h	170.39 KB	-rw-r--r--
unorm.h	20.45 KB	-rw-r--r--
unorm2.h	24.66 KB	-rw-r--r--
unum.h	53.55 KB	-rw-r--r--
unumberformatter.h	25.19 KB	-rw-r--r--
unumsys.h	7.21 KB	-rw-r--r--
uobject.h	10.85 KB	-rw-r--r--
upluralrules.h	7.88 KB	-rw-r--r--
uregex.h	72.05 KB	-rw-r--r--
uregion.h	9.84 KB	-rw-r--r--
ureldatefmt.h	17.26 KB	-rw-r--r--
urename.h	131.4 KB	-rw-r--r--
urep.h	5.38 KB	-rw-r--r--
ures.h	36.54 KB	-rw-r--r--
uscript.h	26.87 KB	-rw-r--r--
usearch.h	38.12 KB	-rw-r--r--
uset.h	40 KB	-rw-r--r--
usetiter.h	9.49 KB	-rw-r--r--
ushape.h	18 KB	-rw-r--r--
uspoof.h	66.03 KB	-rw-r--r--
usprep.h	8.14 KB	-rw-r--r--
ustdio.h	38.54 KB	-rw-r--r--
ustream.h	1.8 KB	-rw-r--r--
ustring.h	72.47 KB	-rw-r--r--
ustringtrie.h	3.15 KB	-rw-r--r--
utext.h	58.11 KB	-rw-r--r--
utf.h	7.86 KB	-rw-r--r--
utf16.h	22.33 KB	-rw-r--r--
utf32.h	763 B	-rw-r--r--
utf8.h	29.96 KB	-rw-r--r--
utf_old.h	43.78 KB	-rw-r--r--
utmscale.h	13.78 KB	-rw-r--r--
utrace.h	13.89 KB	-rw-r--r--
utrans.h	25.54 KB	-rw-r--r--
utypes.h	30.38 KB	-rw-r--r--
uvernum.h	6.67 KB	-rw-r--r--
uversion.h	6.7 KB	-rw-r--r--
vtzone.h	20.17 KB	-rw-r--r--

Code Editor : utf.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*
*   Copyright (C) 1999-2011, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
*******************************************************************************
*   file name:  utf.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 1999sep09
*   created by: Markus W. Scherer
*/

/**
 * \file
 * \brief C API: Code point macros
 *
 * This file defines macros for checking whether a code point is
 * a surrogate or a non-character etc.
 *
 * If U_NO_DEFAULT_INCLUDE_UTF_HEADERS is 0 then utf.h is included by utypes.h
 * and itself includes utf8.h and utf16.h after some
 * common definitions.
 * If U_NO_DEFAULT_INCLUDE_UTF_HEADERS is 1 then each of these headers must be
 * included explicitly if their definitions are used.
 *
 * utf8.h and utf16.h define macros for efficiently getting code points
 * in and out of UTF-8/16 strings.
 * utf16.h macros have "U16_" prefixes.
 * utf8.h defines similar macros with "U8_" prefixes for UTF-8 string handling.
 *
 * ICU mostly processes 16-bit Unicode strings.
 * Most of the time, such strings are well-formed UTF-16.
 * Single, unpaired surrogates must be handled as well, and are treated in ICU
 * like regular code points where possible.
 * (Pairs of surrogate code points are indistinguishable from supplementary
 * code points encoded as pairs of supplementary code units.)
 *
 * In fact, almost all Unicode code points in normal text (>99%)
 * are on the BMP (<=U+ffff) and even <=U+d7ff.
 * ICU functions handle supplementary code points (U+10000..U+10ffff)
 * but are optimized for the much more frequently occurring BMP code points.
 *
 * umachine.h defines UChar to be an unsigned 16-bit integer.
 * Since ICU 59, ICU uses char16_t in C++, UChar only in C,
 * and defines UChar=char16_t by default. See the UChar API docs for details.
 *
 * UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit
 * Unicode code point (Unicode scalar value, 0..0x10ffff) and U_SENTINEL (-1).
 * Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as
 * the definition of UChar. For details see the documentation for UChar32 itself.
 *
 * utf.h defines a small number of C macros for single Unicode code points.
 * These are simple checks for surrogates and non-characters.
 * For actual Unicode character properties see uchar.h.
 *
 * By default, string operations must be done with error checking in case
 * a string is not well-formed UTF-16 or UTF-8.
 *
 * The U16_ macros detect if a surrogate code unit is unpaired
 * (lead unit without trail unit or vice versa) and just return the unit itself
 * as the code point.
 *
 * The U8_ macros detect illegal byte sequences and return a negative value.
 * Starting with ICU 60, the observable length of a single illegal byte sequence
 * skipped by one of these macros follows the Unicode 6+ recommendation
 * which is consistent with the W3C Encoding Standard.
 *
 * There are ..._OR_FFFD versions of both U16_ and U8_ macros
 * that return U+FFFD for illegal code unit sequences.
 *
 * The regular "safe" macros require that the initial, passed-in string index
 * is within bounds. They only check the index when they read more than one
 * code unit. This is usually done with code similar to the following loop:
 * <pre>while(i<length) {
 *   U16_NEXT(s, i, length, c);
 *   // use c
 * }</pre>
 *
 * When it is safe to assume that text is well-formed UTF-16
 * (does not contain single, unpaired surrogates), then one can use
 * U16_..._UNSAFE macros.
 * These do not check for proper code unit sequences or truncated text and may
 * yield wrong results or even cause a crash if they are used with "malformed"
 * text.
 * In practice, U16_..._UNSAFE macros will produce slightly less code but
 * should not be faster because the processing is only different when a
 * surrogate code unit is detected, which will be rare.
 *
 * Similarly for UTF-8, there are "safe" macros without a suffix,
 * and U8_..._UNSAFE versions.
 * The performance differences are much larger here because UTF-8 provides so
 * many opportunities for malformed sequences.
 * The unsafe UTF-8 macros are entirely implemented inside the macro definitions
 * and are fast, while the safe UTF-8 macros call functions for some complicated cases.
 *
 * Unlike with UTF-16, malformed sequences cannot be expressed with distinct
 * code point values (0..U+10ffff). They are indicated with negative values instead.
 *
 * For more information see the ICU User Guide Strings chapter
 * (http://userguide.icu-project.org/strings).
 *
 * <em>Usage:</em>
 * ICU coding guidelines for if() statements should be followed when using these macros.
 * Compound statements (curly braces {}) must be used  for if-else-while... 
 * bodies and all macro statements should be terminated with semicolon.
 *
 * @stable ICU 2.4
 */

#ifndef __UTF_H__
#define __UTF_H__

#include "unicode/umachine.h"
/* include the utfXX.h after the following definitions */

/* single-code point definitions -------------------------------------------- */

/**
 * Is this code point a Unicode noncharacter?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_UNICODE_NONCHAR(c) \
    ((c)>=0xfdd0 && \
     ((c)<=0xfdef || ((c)&0xfffe)==0xfffe) && (c)<=0x10ffff)

/**
 * Is c a Unicode code point value (0..U+10ffff)
 * that can be assigned a character?
 *
 * Code points that are not characters include:
 * - single surrogate code points (U+d800..U+dfff, 2048 code points)
 * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points)
 * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points)
 * - the highest Unicode code point value is U+10ffff
 *
 * This means that all code points below U+d800 are character code points,
 * and that boundary is tested first for performance.
 *
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_UNICODE_CHAR(c) \
    ((uint32_t)(c)<0xd800 || \
        (0xdfff<(c) && (c)<=0x10ffff && !U_IS_UNICODE_NONCHAR(c)))

/**
 * Is this code point a BMP code point (U+0000..U+ffff)?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.8
 */
#define U_IS_BMP(c) ((uint32_t)(c)<=0xffff)

/**
 * Is this code point a supplementary code point (U+10000..U+10ffff)?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.8
 */
#define U_IS_SUPPLEMENTARY(c) ((uint32_t)((c)-0x10000)<=0xfffff)
 
/**
 * Is this code point a lead surrogate (U+d800..U+dbff)?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)

/**
 * Is this code point a trail surrogate (U+dc00..U+dfff)?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)

/**
 * Is this code point a surrogate (U+d800..U+dfff)?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800)

/**
 * Assuming c is a surrogate code point (U_IS_SURROGATE(c)),
 * is it a lead surrogate?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 2.4
 */
#define U_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)

/**
 * Assuming c is a surrogate code point (U_IS_SURROGATE(c)),
 * is it a trail surrogate?
 * @param c 32-bit code point
 * @return TRUE or FALSE
 * @stable ICU 4.2
 */
#define U_IS_SURROGATE_TRAIL(c) (((c)&0x400)!=0)

/* include the utfXX.h ------------------------------------------------------ */

#if !U_NO_DEFAULT_INCLUDE_UTF_HEADERS

#include "unicode/utf8.h"
#include "unicode/utf16.h"

/* utf_old.h contains deprecated, pre-ICU 2.4 definitions */
#include "unicode/utf_old.h"

#endif  /* !U_NO_DEFAULT_INCLUDE_UTF_HEADERS */

#endif  /* __UTF_H__ */

${this.title}

Code Editor : utf.h