FM / unicode

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

Name	Size	Mode	Actions
alphaindex.h	27056	0644	edit dl rm
appendable.h	8632	0644	edit dl rm
basictz.h	9055	0644	edit dl rm
brkiter.h	28195	0644	edit dl rm
bytestream.h	9767	0644	edit dl rm
bytestrie.h	19718	0644	edit dl rm
bytestriebuilder.h	7186	0644	edit dl rm
calendar.h	107581	0644	edit dl rm
caniter.h	7550	0644	edit dl rm
casemap.h	25871	0644	edit dl rm
char16ptr.h	7331	0644	edit dl rm
chariter.h	24573	0644	edit dl rm
choicfmt.h	24418	0644	edit dl rm
coleitr.h	14033	0644	edit dl rm
coll.h	56928	0644	edit dl rm
compactdecimalformat.h	6971	0644	edit dl rm
curramt.h	3782	0644	edit dl rm
currpinf.h	7412	0644	edit dl rm
currunit.h	3606	0644	edit dl rm
datefmt.h	41334	0644	edit dl rm
dbbi.h	1133	0644	edit dl rm
dcfmtsym.h	20584	0644	edit dl rm
decimfmt.h	88478	0644	edit dl rm
docmain.h	6878	0644	edit dl rm
dtfmtsym.h	38548	0644	edit dl rm
dtintrv.h	3848	0644	edit dl rm
dtitvfmt.h	43898	0644	edit dl rm
dtitvinf.h	18903	0644	edit dl rm
dtptngen.h	25626	0644	edit dl rm
dtrule.h	8831	0644	edit dl rm
edits.h	21169	0644	edit dl rm
enumset.h	2130	0644	edit dl rm
errorcode.h	4894	0644	edit dl rm
fieldpos.h	8838	0644	edit dl rm
filteredbrk.h	5364	0644	edit dl rm
fmtable.h	24946	0644	edit dl rm
format.h	12741	0644	edit dl rm
fpositer.h	3047	0644	edit dl rm
gender.h	3347	0644	edit dl rm
gregocal.h	32331	0644	edit dl rm
icudataver.h	1051	0644	edit dl rm
icuplug.h	12166	0644	edit dl rm
idna.h	12938	0644	edit dl rm
listformatter.h	6331	0644	edit dl rm
localpointer.h	17284	0644	edit dl rm
locdspnm.h	7224	0644	edit dl rm
locid.h	46001	0644	edit dl rm
measfmt.h	12298	0644	edit dl rm
measunit.h	39427	0644	edit dl rm
measure.h	4361	0644	edit dl rm
messagepattern.h	34460	0644	edit dl rm
msgfmt.h	44398	0644	edit dl rm
normalizer2.h	34789	0644	edit dl rm
normlzr.h	31476	0644	edit dl rm
nounit.h	2693	0644	edit dl rm
numberformatter.h	89164	0644	edit dl rm
numberrangeformatter.h	29430	0644	edit dl rm
numfmt.h	50322	0644	edit dl rm
numsys.h	6895	0644	edit dl rm
parseerr.h	3155	0644	edit dl rm
parsepos.h	5581	0644	edit dl rm
platform.h	27754	0644	edit dl rm
plurfmt.h	25786	0644	edit dl rm
plurrule.h	17834	0644	edit dl rm
ptypes.h	3577	0644	edit dl rm
putil.h	6487	0644	edit dl rm
rbbi.h	27047	0644	edit dl rm
rbnf.h	50984	0644	edit dl rm
rbtz.h	15838	0644	edit dl rm
regex.h	86943	0644	edit dl rm
region.h	9342	0644	edit dl rm
reldatefmt.h	14812	0644	edit dl rm
rep.h	9726	0644	edit dl rm
resbund.h	18440	0644	edit dl rm
schriter.h	6410	0644	edit dl rm
scientificnumberformatter.h	6474	0644	edit dl rm
search.h	22742	0644	edit dl rm
selfmt.h	14579	0644	edit dl rm
simpleformatter.h	11701	0644	edit dl rm
simpletz.h	46389	0644	edit dl rm
smpdtfmt.h	72442	0644	edit dl rm
sortkey.h	11383	0644	edit dl rm
std_string.h	1015	0644	edit dl rm
strenum.h	10279	0644	edit dl rm
stringoptions.h	5926	0644	edit dl rm
stringpiece.h	6610	0644	edit dl rm
stringtriebuilder.h	15636	0644	edit dl rm
stsearch.h	21801	0644	edit dl rm
symtable.h	4312	0644	edit dl rm
tblcoll.h	37272	0644	edit dl rm
timezone.h	41862	0644	edit dl rm
tmunit.h	3371	0644	edit dl rm
tmutamt.h	4918	0644	edit dl rm
tmutfmt.h	7977	0644	edit dl rm
translit.h	67339	0644	edit dl rm
tzfmt.h	43846	0644	edit dl rm
tznames.h	17190	0644	edit dl rm
tzrule.h	36170	0644	edit dl rm
tztrans.h	6214	0644	edit dl rm
ubidi.h	91711	0644	edit dl rm
ubiditransform.h	12950	0644	edit dl rm
ubrk.h	24547	0644	edit dl rm
ucal.h	56526	0644	edit dl rm
ucasemap.h	15546	0644	edit dl rm
ucat.h	5484	0644	edit dl rm
uchar.h	143314	0644	edit dl rm
ucharstrie.h	21569	0644	edit dl rm
ucharstriebuilder.h	7316	0644	edit dl rm
uchriter.h	13457	0644	edit dl rm
uclean.h	11474	0644	edit dl rm
ucnv.h	85085	0644	edit dl rm
ucnvsel.h	6283	0644	edit dl rm
ucnv_cb.h	6748	0644	edit dl rm
ucnv_err.h	21492	0644	edit dl rm
ucol.h	62864	0644	edit dl rm
ucoleitr.h	9684	0644	edit dl rm
uconfig.h	11949	0644	edit dl rm
ucpmap.h	5709	0644	edit dl rm
ucptrie.h	22824	0644	edit dl rm
ucsdet.h	15018	0644	edit dl rm
ucurr.h	15947	0644	edit dl rm
udat.h	61572	0644	edit dl rm
udata.h	15905	0644	edit dl rm
udateintervalformat.h	6950	0644	edit dl rm
udatpg.h	26664	0644	edit dl rm
udisplaycontext.h	6029	0644	edit dl rm
uenum.h	7970	0644	edit dl rm
ufieldpositer.h	4461	0644	edit dl rm
uformattable.h	11198	0644	edit dl rm
ugender.h	2052	0644	edit dl rm
uidna.h	34169	0644	edit dl rm
uiter.h	23319	0644	edit dl rm
uldnames.h	10702	0644	edit dl rm
ulistformatter.h	5148	0644	edit dl rm
uloc.h	51971	0644	edit dl rm
ulocdata.h	11533	0644	edit dl rm
umachine.h	13509	0644	edit dl rm
umisc.h	1365	0644	edit dl rm
umsg.h	24812	0644	edit dl rm
umutablecptrie.h	8477	0644	edit dl rm
unifilt.h	3716	0644	edit dl rm
unifunct.h	4079	0644	edit dl rm
unimatch.h	6184	0644	edit dl rm
unirepl.h	3403	0644	edit dl rm
uniset.h	65796	0644	edit dl rm
unistr.h	178587	0644	edit dl rm
unorm.h	20938	0644	edit dl rm
unorm2.h	25254	0644	edit dl rm
unum.h	54666	0644	edit dl rm
unumberformatter.h	24335	0644	edit dl rm
unumsys.h	7314	0644	edit dl rm
uobject.h	10958	0644	edit dl rm
upluralrules.h	6880	0644	edit dl rm
uregex.h	73784	0644	edit dl rm
uregion.h	10073	0644	edit dl rm
ureldatefmt.h	12518	0644	edit dl rm
urename.h	130791	0644	edit dl rm
urep.h	5507	0644	edit dl rm
ures.h	37404	0644	edit dl rm
uscript.h	27153	0644	edit dl rm
usearch.h	39038	0644	edit dl rm
uset.h	40958	0644	edit dl rm
usetiter.h	9719	0644	edit dl rm
ushape.h	18432	0644	edit dl rm
uspoof.h	67613	0644	edit dl rm
usprep.h	8331	0644	edit dl rm
ustdio.h	39469	0644	edit dl rm
ustream.h	1844	0644	edit dl rm
ustring.h	74211	0644	edit dl rm
ustringtrie.h	3224	0644	edit dl rm
utext.h	59503	0644	edit dl rm
utf.h	8046	0644	edit dl rm
utf8.h	30734	0644	edit dl rm
utf16.h	22866	0644	edit dl rm
utf32.h	763	0644	edit dl rm
utf_old.h	44827	0644	edit dl rm
utmscale.h	14113	0644	edit dl rm
utrace.h	14219	0644	edit dl rm
utrans.h	26157	0644	edit dl rm
utypes.h	31212	0644	edit dl rm
uvernum.h	6206	0644	edit dl rm
uversion.h	6865	0644	edit dl rm
vtzone.h	20651	0644	edit dl rm

Edit: /opt/alt/libicu/usr/include/unicode/ucnv_err.h (21492B)

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
*   Copyright (C) 1999-2009, International Business Machines
*   Corporation and others.  All Rights Reserved.
**********************************************************************
 *
 *
 *   ucnv_err.h:
 */

/**
 * \file
 * \brief C UConverter predefined error callbacks
 *
 *  <h2>Error Behaviour Functions</h2>
 *  Defines some error behaviour functions called by ucnv_{from,to}Unicode
 *  These are provided as part of ICU and many are stable, but they
 *  can also be considered only as an example of what can be done with
 *  callbacks.  You may of course write your own.
 *
 *  If you want to write your own, you may also find the functions from
 *  ucnv_cb.h useful when writing your own callbacks.
 *
 *  These functions, although public, should NEVER be called directly.
 *  They should be used as parameters to the ucnv_setFromUCallback
 *  and ucnv_setToUCallback functions, to set the behaviour of a converter
 *  when it encounters ILLEGAL/UNMAPPED/INVALID sequences.
 *
 *  usage example:  'STOP' doesn't need any context, but newContext
 *    could be set to something other than 'NULL' if needed. The available
 *    contexts in this header can modify the default behavior of the callback.
 *
 *  \code
 *  UErrorCode err = U_ZERO_ERROR;
 *  UConverter *myConverter = ucnv_open("ibm-949", &err);
 *  const void *oldContext;
 *  UConverterFromUCallback oldAction;
 *
 *
 *  if (U_SUCCESS(err))
 *  {
 *      ucnv_setFromUCallBack(myConverter,
 *                       UCNV_FROM_U_CALLBACK_STOP,
 *                       NULL,
 *                       &oldAction,
 *                       &oldContext,
 *                       &status);
 *  }
 *  \endcode
 *
 *  The code above tells "myConverter" to stop when it encounters an
 *  ILLEGAL/TRUNCATED/INVALID sequences when it is used to convert from
 *  Unicode -> Codepage. The behavior from Codepage to Unicode is not changed,
 *  and ucnv_setToUCallBack would need to be called in order to change
 *  that behavior too.
 *
 *  Here is an example with a context:
 *
 *  \code
 *  UErrorCode err = U_ZERO_ERROR;
 *  UConverter *myConverter = ucnv_open("ibm-949", &err);
 *  const void *oldContext;
 *  UConverterFromUCallback oldAction;
 *
 *
 *  if (U_SUCCESS(err))
 *  {
 *      ucnv_setToUCallBack(myConverter,
 *                       UCNV_TO_U_CALLBACK_SUBSTITUTE,
 *                       UCNV_SUB_STOP_ON_ILLEGAL,
 *                       &oldAction,
 *                       &oldContext,
 *                       &status);
 *  }
 *  \endcode
 *
 *  The code above tells "myConverter" to stop when it encounters an
 *  ILLEGAL/TRUNCATED/INVALID sequences when it is used to convert from
 *  Codepage -> Unicode. Any unmapped and legal characters will be
 *  substituted to be the default substitution character.
 */

#ifndef UCNV_ERR_H
#define UCNV_ERR_H

#include "unicode/utypes.h"

#if !UCONFIG_NO_CONVERSION

/** Forward declaring the UConverter structure. @stable ICU 2.0 */
struct UConverter;

/** @stable ICU 2.0 */
typedef struct UConverter UConverter;

/**
 * FROM_U, TO_U context options for sub callback
 * @stable ICU 2.0
 */
#define UCNV_SUB_STOP_ON_ILLEGAL "i"

/**
 * FROM_U, TO_U context options for skip callback
 * @stable ICU 2.0
 */
#define UCNV_SKIP_STOP_ON_ILLEGAL "i"

/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to ICU (%UXXXX) 
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_ICU       NULL
/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to JAVA (\\uXXXX)
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_JAVA      "J"
/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to C (\\uXXXX \\UXXXXXXXX)
 * TO_U_CALLBACK_ESCAPE option to escape the character value according to C (\\xXXXX)
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_C         "C"
/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to XML Decimal escape \htmlonly(&amp;#DDDD;)\endhtmlonly
 * TO_U_CALLBACK_ESCAPE context option to escape the character value according to XML Decimal escape \htmlonly(&amp;#DDDD;)\endhtmlonly
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_XML_DEC   "D"
/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to XML Hex escape \htmlonly(&amp;#xXXXX;)\endhtmlonly
 * TO_U_CALLBACK_ESCAPE context option to escape the character value according to XML Hex escape \htmlonly(&amp;#xXXXX;)\endhtmlonly
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_XML_HEX   "X"
/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to Unicode (U+XXXXX)
 * @stable ICU 2.0
 */
#define UCNV_ESCAPE_UNICODE   "U"

/**
 * FROM_U_CALLBACK_ESCAPE context option to escape the code unit according to CSS2 conventions (\\HH..H<space>, that is,
 * a backslash, 1..6 hex digits, and a space)
 * @stable ICU 4.0
 */
#define UCNV_ESCAPE_CSS2   "S"

/** 
 * The process condition code to be used with the callbacks.  
 * Codes which are greater than UCNV_IRREGULAR should be 
 * passed on to any chained callbacks.
 * @stable ICU 2.0
 */
typedef enum {
    UCNV_UNASSIGNED = 0,  /**< The code point is unassigned.
                             The error code U_INVALID_CHAR_FOUND will be set. */
    UCNV_ILLEGAL = 1,     /**< The code point is illegal. For example, 
                             \\x81\\x2E is illegal in SJIS because \\x2E
                             is not a valid trail byte for the \\x81 
                             lead byte.
                             Also, starting with Unicode 3.0.1, non-shortest byte sequences
                             in UTF-8 (like \\xC1\\xA1 instead of \\x61 for U+0061)
                             are also illegal, not just irregular.
                             The error code U_ILLEGAL_CHAR_FOUND will be set. */
    UCNV_IRREGULAR = 2,   /**< The codepoint is not a regular sequence in 
                             the encoding. For example, \\xED\\xA0\\x80..\\xED\\xBF\\xBF
                             are irregular UTF-8 byte sequences for single surrogate
                             code points.
                             The error code U_INVALID_CHAR_FOUND will be set. */
    UCNV_RESET = 3,       /**< The callback is called with this reason when a
                             'reset' has occurred. Callback should reset all
                             state. */
    UCNV_CLOSE = 4,        /**< Called when the converter is closed. The
                             callback should release any allocated memory.*/
    UCNV_CLONE = 5         /**< Called when ucnv_safeClone() is called on the
                              converter. the pointer available as the
                              'context' is an alias to the original converters'
                              context pointer. If the context must be owned
                              by the new converter, the callback must clone 
                              the data and call ucnv_setFromUCallback 
                              (or setToUCallback) with the correct pointer.
                              @stable ICU 2.2
                           */
} UConverterCallbackReason;

/**
 * The structure for the fromUnicode callback function parameter.
 * @stable ICU 2.0
 */
typedef struct {
    uint16_t size;              /**< The size of this struct. @stable ICU 2.0 */
    UBool flush;                /**< The internal state of converter will be reset and data flushed if set to TRUE. @stable ICU 2.0    */
    UConverter *converter;      /**< Pointer to the converter that is opened and to which this struct is passed as an argument. @stable ICU 2.0  */
    const UChar *source;        /**< Pointer to the source source buffer. @stable ICU 2.0    */
    const UChar *sourceLimit;   /**< Pointer to the limit (end + 1) of source buffer. @stable ICU 2.0    */
    char *target;               /**< Pointer to the target buffer. @stable ICU 2.0    */
    const char *targetLimit;    /**< Pointer to the limit (end + 1) of target buffer. @stable ICU 2.0     */
    int32_t *offsets;           /**< Pointer to the buffer that receives the offsets. *offset = blah ; offset++;. @stable ICU 2.0  */
} UConverterFromUnicodeArgs;

/**
 * The structure for the toUnicode callback function parameter.
 * @stable ICU 2.0
 */
typedef struct {
    uint16_t size;              /**< The size of this struct   @stable ICU 2.0 */
    UBool flush;                /**< The internal state of converter will be reset and data flushed if set to TRUE. @stable ICU 2.0   */
    UConverter *converter;      /**< Pointer to the converter that is opened and to which this struct is passed as an argument. @stable ICU 2.0 */
    const char *source;         /**< Pointer to the source source buffer. @stable ICU 2.0    */
    const char *sourceLimit;    /**< Pointer to the limit (end + 1) of source buffer. @stable ICU 2.0    */
    UChar *target;              /**< Pointer to the target buffer. @stable ICU 2.0    */
    const UChar *targetLimit;   /**< Pointer to the limit (end + 1) of target buffer. @stable ICU 2.0     */
    int32_t *offsets;           /**< Pointer to the buffer that receives the offsets. *offset = blah ; offset++;. @stable ICU 2.0  */
} UConverterToUnicodeArgs;

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This From Unicode callback STOPS at the ILLEGAL_SEQUENCE,
 * returning the error code back to the caller immediately.
 *
 * @param context Pointer to the callback's private data
 * @param fromUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' UChars of the concerned Unicode sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param codePoint Single UChar32 (UTF-32) containing the concerend Unicode codepoint.
 * @param reason Defines the reason the callback was invoked
 * @param err This should always be set to a failure status prior to calling.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_FROM_U_CALLBACK_STOP (
                  const void *context,
                  UConverterFromUnicodeArgs *fromUArgs,
                  const UChar* codeUnits,
                  int32_t length,
                  UChar32 codePoint,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This To Unicode callback STOPS at the ILLEGAL_SEQUENCE,
 * returning the error code back to the caller immediately.
 *
 * @param context Pointer to the callback's private data
 * @param toUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' bytes of the concerned codepage sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param reason Defines the reason the callback was invoked
 * @param err This should always be set to a failure status prior to calling.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_TO_U_CALLBACK_STOP (
                  const void *context,
                  UConverterToUnicodeArgs *toUArgs,
                  const char* codeUnits,
                  int32_t length,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This From Unicode callback skips any ILLEGAL_SEQUENCE, or
 * skips only UNASSINGED_SEQUENCE depending on the context parameter
 * simply ignoring those characters. 
 *
 * @param context  The function currently recognizes the callback options:
 *                 UCNV_SKIP_STOP_ON_ILLEGAL: STOPS at the ILLEGAL_SEQUENCE,
 *                      returning the error code back to the caller immediately.
 *                 NULL: Skips any ILLEGAL_SEQUENCE
 * @param fromUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' UChars of the concerned Unicode sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param codePoint Single UChar32 (UTF-32) containing the concerend Unicode codepoint.
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_FROM_U_CALLBACK_SKIP (
                  const void *context,
                  UConverterFromUnicodeArgs *fromUArgs,
                  const UChar* codeUnits,
                  int32_t length,
                  UChar32 codePoint,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This From Unicode callback will Substitute the ILLEGAL SEQUENCE, or 
 * UNASSIGNED_SEQUENCE depending on context parameter, with the
 * current substitution string for the converter. This is the default
 * callback.
 *
 * @param context The function currently recognizes the callback options:
 *                 UCNV_SUB_STOP_ON_ILLEGAL: STOPS at the ILLEGAL_SEQUENCE,
 *                      returning the error code back to the caller immediately.
 *                 NULL: Substitutes any ILLEGAL_SEQUENCE
 * @param fromUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' UChars of the concerned Unicode sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param codePoint Single UChar32 (UTF-32) containing the concerend Unicode codepoint.
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @see ucnv_setSubstChars
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_FROM_U_CALLBACK_SUBSTITUTE (
                  const void *context,
                  UConverterFromUnicodeArgs *fromUArgs,
                  const UChar* codeUnits,
                  int32_t length,
                  UChar32 codePoint,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This From Unicode callback will Substitute the ILLEGAL SEQUENCE with the
 * hexadecimal representation of the illegal codepoints
 *
 * @param context The function currently recognizes the callback options:
 *        <ul>
 *        <li>UCNV_ESCAPE_ICU: Substitues the  ILLEGAL SEQUENCE with the hexadecimal 
 *          representation in the format  %UXXXX, e.g. "%uFFFE%u00AC%uC8FE"). 
 *          In the Event the converter doesn't support the characters {%,U}[A-F][0-9], 
 *          it will  substitute  the illegal sequence with the substitution characters.
 *          Note that  codeUnit(32bit int eg: unit of a surrogate pair) is represented as
 *          %UD84D%UDC56</li>
 *        <li>UCNV_ESCAPE_JAVA: Substitues the  ILLEGAL SEQUENCE with the hexadecimal 
 *          representation in the format  \\uXXXX, e.g. "\\uFFFE\\u00AC\\uC8FE"). 
 *          In the Event the converter doesn't support the characters {\,u}[A-F][0-9], 
 *          it will  substitute  the illegal sequence with the substitution characters.
 *          Note that  codeUnit(32bit int eg: unit of a surrogate pair) is represented as
 *          \\uD84D\\uDC56</li>
 *        <li>UCNV_ESCAPE_C: Substitues the  ILLEGAL SEQUENCE with the hexadecimal 
 *          representation in the format  \\uXXXX, e.g. "\\uFFFE\\u00AC\\uC8FE"). 
 *          In the Event the converter doesn't support the characters {\,u,U}[A-F][0-9], 
 *          it will  substitute  the illegal sequence with the substitution characters.
 *          Note that  codeUnit(32bit int eg: unit of a surrogate pair) is represented as
 *          \\U00023456</li>
 *        <li>UCNV_ESCAPE_XML_DEC: Substitues the  ILLEGAL SEQUENCE with the decimal 
 *          representation in the format \htmlonly&amp;#DDDDDDDD;, e.g. "&amp;#65534;&amp;#172;&amp;#51454;")\endhtmlonly. 
 *          In the Event the converter doesn't support the characters {&amp;,#}[0-9], 
 *          it will  substitute  the illegal sequence with the substitution characters.
 *          Note that  codeUnit(32bit int eg: unit of a surrogate pair) is represented as
 *          &amp;#144470; and Zero padding is ignored.</li>
 *        <li>UCNV_ESCAPE_XML_HEX:Substitues the  ILLEGAL SEQUENCE with the decimal 
 *          representation in the format \htmlonly&amp;#xXXXX; e.g. "&amp;#xFFFE;&amp;#x00AC;&amp;#xC8FE;")\endhtmlonly. 
 *          In the Event the converter doesn't support the characters {&,#,x}[0-9], 
 *          it will  substitute  the illegal sequence with the substitution characters.
 *          Note that  codeUnit(32bit int eg: unit of a surrogate pair) is represented as
 *          \htmlonly&amp;#x23456;\endhtmlonly</li>
 *        </ul>
 * @param fromUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' UChars of the concerned Unicode sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param codePoint Single UChar32 (UTF-32) containing the concerend Unicode codepoint.
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_FROM_U_CALLBACK_ESCAPE (
                  const void *context,
                  UConverterFromUnicodeArgs *fromUArgs,
                  const UChar* codeUnits,
                  int32_t length,
                  UChar32 codePoint,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This To Unicode callback skips any ILLEGAL_SEQUENCE, or
 * skips only UNASSINGED_SEQUENCE depending on the context parameter
 * simply ignoring those characters. 
 *
 * @param context  The function currently recognizes the callback options:
 *                 UCNV_SKIP_STOP_ON_ILLEGAL: STOPS at the ILLEGAL_SEQUENCE,
 *                      returning the error code back to the caller immediately.
 *                 NULL: Skips any ILLEGAL_SEQUENCE
 * @param toUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' bytes of the concerned codepage sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_TO_U_CALLBACK_SKIP (
                  const void *context,
                  UConverterToUnicodeArgs *toUArgs,
                  const char* codeUnits,
                  int32_t length,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This To Unicode callback will Substitute the ILLEGAL SEQUENCE,or 
 * UNASSIGNED_SEQUENCE depending on context parameter,  with the
 * Unicode substitution character, U+FFFD.
 *
 * @param context  The function currently recognizes the callback options:
 *                 UCNV_SUB_STOP_ON_ILLEGAL: STOPS at the ILLEGAL_SEQUENCE,
 *                      returning the error code back to the caller immediately.
 *                 NULL: Substitutes any ILLEGAL_SEQUENCE
 * @param toUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' bytes of the concerned codepage sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 UCNV_TO_U_CALLBACK_SUBSTITUTE (
                  const void *context,
                  UConverterToUnicodeArgs *toUArgs,
                  const char* codeUnits,
                  int32_t length,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

/**
 * DO NOT CALL THIS FUNCTION DIRECTLY!
 * This To Unicode callback will Substitute the ILLEGAL SEQUENCE with the
 * hexadecimal representation of the illegal bytes
 *  (in the format  %XNN, e.g. "%XFF%X0A%XC8%X03").
 *
 * @param context This function currently recognizes the callback options:
 *      UCNV_ESCAPE_ICU, UCNV_ESCAPE_JAVA, UCNV_ESCAPE_C, UCNV_ESCAPE_XML_DEC,
 *      UCNV_ESCAPE_XML_HEX and UCNV_ESCAPE_UNICODE.
 * @param toUArgs Information about the conversion in progress
 * @param codeUnits Points to 'length' bytes of the concerned codepage sequence
 * @param length Size (in bytes) of the concerned codepage sequence
 * @param reason Defines the reason the callback was invoked
 * @param err Return value will be set to success if the callback was handled,
 *      otherwise this value will be set to a failure status.
 * @stable ICU 2.0
 */

U_STABLE void U_EXPORT2 UCNV_TO_U_CALLBACK_ESCAPE (
                  const void *context,
                  UConverterToUnicodeArgs *toUArgs,
                  const char* codeUnits,
                  int32_t length,
                  UConverterCallbackReason reason,
                  UErrorCode * err);

#endif

/*UCNV_ERR_H*/

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