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/*
**********************************************************************
* Copyright (C) 1999-2015, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
* file name: ustr_imp.h
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 2001jan30
* created by: Markus W. Scherer
*/
#ifndef __USTR_IMP_H__
#define __USTR_IMP_H__
#include "unicode/utypes.h"
#include "unicode/uiter.h"
#include "ucase.h"
/** Simple declaration to avoid including unicode/ubrk.h. */
#ifndef UBRK_TYPEDEF_UBREAK_ITERATOR
# define UBRK_TYPEDEF_UBREAK_ITERATOR
typedef struct UBreakIterator UBreakIterator;
#endif
#ifndef U_COMPARE_IGNORE_CASE
/* see also unorm.h */
/**
* Option bit for unorm_compare:
* Perform case-insensitive comparison.
*/
#define U_COMPARE_IGNORE_CASE 0x10000
#endif
/**
* Internal option for unorm_cmpEquivFold() for strncmp style.
* If set, checks for both string length and terminating NUL.
*/
#define _STRNCMP_STYLE 0x1000
/**
* Compare two strings in code point order or code unit order.
* Works in strcmp style (both lengths -1),
* strncmp style (lengths equal and >=0, flag TRUE),
* and memcmp/UnicodeString style (at least one length >=0).
*/
U_CFUNC int32_t U_EXPORT2
uprv_strCompare(const UChar *s1, int32_t length1,
const UChar *s2, int32_t length2,
UBool strncmpStyle, UBool codePointOrder);
/**
* Internal API, used by u_strcasecmp() etc.
* Compare strings case-insensitively,
* in code point order or code unit order.
*/
U_CFUNC int32_t
u_strcmpFold(const UChar *s1, int32_t length1,
const UChar *s2, int32_t length2,
uint32_t options,
UErrorCode *pErrorCode);
/**
* Interanl API, used for detecting length of
* shared prefix case-insensitively.
* @param s1 input string 1
* @param length1 length of string 1, or -1 (NULL terminated)
* @param s2 input string 2
* @param length2 length of string 2, or -1 (NULL terminated)
* @param options compare options
* @param matchLen1 (output) length of partial prefix match in s1
* @param matchLen2 (output) length of partial prefix match in s2
* @param pErrorCode receives error status
*/
U_CAPI void
u_caseInsensitivePrefixMatch(const UChar *s1, int32_t length1,
const UChar *s2, int32_t length2,
uint32_t options,
int32_t *matchLen1, int32_t *matchLen2,
UErrorCode *pErrorCode);
/**
* Are the Unicode properties loaded?
* This must be used before internal functions are called that do
* not perform this check.
* Generate a debug assertion failure if data is not loaded.
*/
U_CFUNC UBool
uprv_haveProperties(UErrorCode *pErrorCode);
/**
* Load the Unicode property data.
* Intended primarily for use from u_init().
* Has no effect if property data is already loaded.
* NOT thread safe.
*/
/*U_CFUNC int8_t
uprv_loadPropsData(UErrorCode *errorCode);*/
/*
* Internal string casing functions implementing
* ustring.h/ustrcase.c and UnicodeString case mapping functions.
*/
struct UCaseMap {
const UCaseProps *csp;
#if !UCONFIG_NO_BREAK_ITERATION
UBreakIterator *iter; /* We adopt the iterator, so we own it. */
#endif
char locale[32];
int32_t locCache;
uint32_t options;
};
#ifndef __UCASEMAP_H__
typedef struct UCaseMap UCaseMap;
#endif
#if UCONFIG_NO_BREAK_ITERATION
# define UCASEMAP_INITIALIZER { NULL, { 0 }, 0, 0 }
#else
# define UCASEMAP_INITIALIZER { NULL, NULL, { 0 }, 0, 0 }
#endif
U_CFUNC void
ustrcase_setTempCaseMapLocale(UCaseMap *csm, const char *locale);
#ifndef U_STRING_CASE_MAPPER_DEFINED
#define U_STRING_CASE_MAPPER_DEFINED
/**
* String case mapping function type, used by ustrcase_map().
* All error checking must be done.
* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
* src and dest must not overlap.
*/
typedef int32_t U_CALLCONV
UStringCaseMapper(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UErrorCode *pErrorCode);
#endif
/** Implements UStringCaseMapper. */
U_CFUNC int32_t U_CALLCONV
ustrcase_internalToLower(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UErrorCode *pErrorCode);
/** Implements UStringCaseMapper. */
U_CFUNC int32_t U_CALLCONV
ustrcase_internalToUpper(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UErrorCode *pErrorCode);
#if !UCONFIG_NO_BREAK_ITERATION
/** Implements UStringCaseMapper. */
U_CFUNC int32_t U_CALLCONV
ustrcase_internalToTitle(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UErrorCode *pErrorCode);
#endif
/** Implements UStringCaseMapper. */
U_CFUNC int32_t U_CALLCONV
ustrcase_internalFold(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UErrorCode *pErrorCode);
/**
* Implements argument checking and buffer handling
* for string case mapping as a common function.
*/
U_CFUNC int32_t
ustrcase_map(const UCaseMap *csm,
UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
UStringCaseMapper *stringCaseMapper,
UErrorCode *pErrorCode);
/**
* UTF-8 string case mapping function type, used by ucasemap_mapUTF8().
* UTF-8 version of UStringCaseMapper.
* All error checking must be done.
* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
* src and dest must not overlap.
*/
typedef int32_t U_CALLCONV
UTF8CaseMapper(const UCaseMap *csm,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
UErrorCode *pErrorCode);
/** Implements UTF8CaseMapper. */
U_CFUNC int32_t U_CALLCONV
ucasemap_internalUTF8ToTitle(const UCaseMap *csm,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
UErrorCode *pErrorCode);
/**
* Implements argument checking and buffer handling
* for UTF-8 string case mapping as a common function.
*/
U_CFUNC int32_t
ucasemap_mapUTF8(const UCaseMap *csm,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
UTF8CaseMapper *stringCaseMapper,
UErrorCode *pErrorCode);
U_CAPI int32_t U_EXPORT2
ustr_hashUCharsN(const UChar *str, int32_t length);
U_CAPI int32_t U_EXPORT2
ustr_hashCharsN(const char *str, int32_t length);
U_CAPI int32_t U_EXPORT2
ustr_hashICharsN(const char *str, int32_t length);
/**
* NUL-terminate a UChar * string if possible.
* If length < destCapacity then NUL-terminate.
* If length == destCapacity then do not terminate but set U_STRING_NOT_TERMINATED_WARNING.
* If length > destCapacity then do not terminate but set U_BUFFER_OVERFLOW_ERROR.
*
* @param dest Destination buffer, can be NULL if destCapacity==0.
* @param destCapacity Number of UChars available at dest.
* @param length Number of UChars that were (to be) written to dest.
* @param pErrorCode ICU error code.
* @return length
*/
U_CAPI int32_t U_EXPORT2
u_terminateUChars(UChar *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
/**
* NUL-terminate a char * string if possible.
* Same as u_terminateUChars() but for a different string type.
*/
U_CAPI int32_t U_EXPORT2
u_terminateChars(char *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
/**
* NUL-terminate a UChar32 * string if possible.
* Same as u_terminateUChars() but for a different string type.
*/
U_CAPI int32_t U_EXPORT2
u_terminateUChar32s(UChar32 *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
/**
* NUL-terminate a wchar_t * string if possible.
* Same as u_terminateUChars() but for a different string type.
*/
U_CAPI int32_t U_EXPORT2
u_terminateWChars(wchar_t *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
#endif
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