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248 lines
7.5 KiB
C
248 lines
7.5 KiB
C
/*
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**********************************************************************
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* Copyright (C) 1999-2011, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* file name: ustr_imp.h
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2001jan30
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* created by: Markus W. Scherer
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*/
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#ifndef __USTR_IMP_H__
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#define __USTR_IMP_H__
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#include "unicode/utypes.h"
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#include "unicode/uiter.h"
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#include "ucase.h"
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/** Simple declaration to avoid including unicode/ubrk.h. */
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#ifndef UBRK_TYPEDEF_UBREAK_ITERATOR
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# define UBRK_TYPEDEF_UBREAK_ITERATOR
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typedef struct UBreakIterator UBreakIterator;
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#endif
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#ifndef U_COMPARE_IGNORE_CASE
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/* see also unorm.h */
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/**
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* Option bit for unorm_compare:
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* Perform case-insensitive comparison.
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*/
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#define U_COMPARE_IGNORE_CASE 0x10000
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#endif
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/**
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* Internal option for unorm_cmpEquivFold() for strncmp style.
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* If set, checks for both string length and terminating NUL.
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*/
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#define _STRNCMP_STYLE 0x1000
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/**
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* Compare two strings in code point order or code unit order.
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* Works in strcmp style (both lengths -1),
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* strncmp style (lengths equal and >=0, flag TRUE),
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* and memcmp/UnicodeString style (at least one length >=0).
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*/
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U_CFUNC int32_t U_EXPORT2
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uprv_strCompare(const UChar *s1, int32_t length1,
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const UChar *s2, int32_t length2,
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UBool strncmpStyle, UBool codePointOrder);
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/**
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* Internal API, used by u_strcasecmp() etc.
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* Compare strings case-insensitively,
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* in code point order or code unit order.
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*/
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U_CFUNC int32_t
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u_strcmpFold(const UChar *s1, int32_t length1,
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const UChar *s2, int32_t length2,
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uint32_t options,
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UErrorCode *pErrorCode);
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/**
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* Are the Unicode properties loaded?
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* This must be used before internal functions are called that do
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* not perform this check.
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* Generate a debug assertion failure if data is not loaded.
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*/
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U_CFUNC UBool
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uprv_haveProperties(UErrorCode *pErrorCode);
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/**
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* Load the Unicode property data.
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* Intended primarily for use from u_init().
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* Has no effect if property data is already loaded.
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* NOT thread safe.
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*/
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/*U_CFUNC int8_t
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uprv_loadPropsData(UErrorCode *errorCode);*/
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/*
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* Internal string casing functions implementing
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* ustring.h/ustrcase.c and UnicodeString case mapping functions.
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*/
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struct UCaseMap {
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const UCaseProps *csp;
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#if !UCONFIG_NO_BREAK_ITERATION
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UBreakIterator *iter; /* We adopt the iterator, so we own it. */
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#endif
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char locale[32];
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int32_t locCache;
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uint32_t options;
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};
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#ifndef __UCASEMAP_H__
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typedef struct UCaseMap UCaseMap;
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#endif
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#if UCONFIG_NO_BREAK_ITERATION
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# define UCASEMAP_INITIALIZER { NULL, { 0 }, 0, 0 }
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#else
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# define UCASEMAP_INITIALIZER { NULL, NULL, { 0 }, 0, 0 }
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#endif
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U_CFUNC void
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ustrcase_setTempCaseMapLocale(UCaseMap *csm, const char *locale);
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#ifndef U_STRING_CASE_MAPPER_DEFINED
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#define U_STRING_CASE_MAPPER_DEFINED
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/**
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* String case mapping function type, used by ustrcase_map().
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* All error checking must be done.
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* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
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* src and dest must not overlap.
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*/
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typedef int32_t U_CALLCONV
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UStringCaseMapper(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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#endif
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToLower(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToUpper(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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#if !UCONFIG_NO_BREAK_ITERATION
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalToTitle(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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#endif
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/** Implements UStringCaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ustrcase_internalFold(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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/**
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* Implements argument checking and buffer handling
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* for string case mapping as a common function.
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*/
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U_CFUNC int32_t
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ustrcase_map(const UCaseMap *csm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UStringCaseMapper *stringCaseMapper,
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UErrorCode *pErrorCode);
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/**
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* UTF-8 string case mapping function type, used by ucasemap_mapUTF8().
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* UTF-8 version of UStringCaseMapper.
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* All error checking must be done.
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* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
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* src and dest must not overlap.
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*/
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typedef int32_t U_CALLCONV
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UTF8CaseMapper(const UCaseMap *csm,
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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/** Implements UTF8CaseMapper. */
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U_CFUNC int32_t U_CALLCONV
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ucasemap_internalUTF8ToTitle(const UCaseMap *csm,
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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UErrorCode *pErrorCode);
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/**
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* Implements argument checking and buffer handling
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* for UTF-8 string case mapping as a common function.
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*/
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U_CFUNC int32_t
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ucasemap_mapUTF8(const UCaseMap *csm,
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uint8_t *dest, int32_t destCapacity,
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const uint8_t *src, int32_t srcLength,
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UTF8CaseMapper *stringCaseMapper,
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UErrorCode *pErrorCode);
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U_CAPI int32_t U_EXPORT2
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ustr_hashUCharsN(const UChar *str, int32_t length);
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U_CAPI int32_t U_EXPORT2
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ustr_hashCharsN(const char *str, int32_t length);
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U_CAPI int32_t U_EXPORT2
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ustr_hashICharsN(const char *str, int32_t length);
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/**
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* NUL-terminate a UChar * string if possible.
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* If length < destCapacity then NUL-terminate.
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* If length == destCapacity then do not terminate but set U_STRING_NOT_TERMINATED_WARNING.
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* If length > destCapacity then do not terminate but set U_BUFFER_OVERFLOW_ERROR.
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*
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* @param dest Destination buffer, can be NULL if destCapacity==0.
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* @param destCapacity Number of UChars available at dest.
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* @param length Number of UChars that were (to be) written to dest.
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* @param pErrorCode ICU error code.
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* @return length
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*/
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U_CAPI int32_t U_EXPORT2
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u_terminateUChars(UChar *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
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/**
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* NUL-terminate a char * string if possible.
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* Same as u_terminateUChars() but for a different string type.
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*/
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U_CAPI int32_t U_EXPORT2
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u_terminateChars(char *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
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/**
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* NUL-terminate a UChar32 * string if possible.
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* Same as u_terminateUChars() but for a different string type.
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*/
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U_CAPI int32_t U_EXPORT2
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u_terminateUChar32s(UChar32 *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
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/**
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* NUL-terminate a wchar_t * string if possible.
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* Same as u_terminateUChars() but for a different string type.
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*/
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U_CAPI int32_t U_EXPORT2
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u_terminateWChars(wchar_t *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
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#endif
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