scuffed-code/icu4c/source/common/ustr_imp.h
Markus Scherer 0c602137f7 ICU-840 implement case folding
X-SVN-Rev: 3618
2001-02-14 00:47:36 +00:00

98 lines
2.9 KiB
C

/*
**********************************************************************
* Copyright (C) 1999, 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"
/**
* Are the Unicode properties loaded?
* This must be used before internal functions are called that do
* not perform this check.
* @internal
*/
U_CFUNC UBool
uprv_haveProperties();
/**
* Type of a function that may be passed to the internal case mapping functions
* for growing the destination buffer.
* @internal
*/
typedef UBool
GrowBuffer(void *context, /* opaque pointer for this function */
UChar **buffer, /* in/out destination buffer pointer */
int32_t *pCapacity, /* in/out buffer capacity in numbers of UChars */
int32_t reqCapacity, /* requested capacity */
int32_t length); /* number of UChars to be copied to new buffer */
/*
* Internal string casing functions implementing ustring.c and UnicodeString
* case mapping functions.
*/
U_CFUNC int32_t
u_internalStrToLower(UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
const char *locale,
GrowBuffer *growBuffer, void *context,
UErrorCode *pErrorCode);
U_CFUNC int32_t
u_internalStrToUpper(UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
const char *locale,
GrowBuffer *growBuffer, void *context,
UErrorCode *pErrorCode);
/**
* Internal case folding function.
* @internal
*/
U_CFUNC int32_t
u_internalStrFoldCase(UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
uint32_t options,
GrowBuffer *growBuffer, void *context,
UErrorCode *pErrorCode);
/**
* Return the full case folding mapping for c.
* Must be used only if uprv_haveProperties() is true.
* @internal
*/
U_CFUNC int32_t
u_internalFoldCase(UChar32 c, UChar dest[32], uint32_t options);
/**
* Internal case-insensitive string compare function.
* @internal
*/
U_CFUNC int32_t
u_internalStrcasecmp(const UChar *s1, int32_t length1,
const UChar *s2, int32_t length2,
uint32_t options);
/**
* Internal, somewhat faster version of u_getCombiningClass()
* for use by normalization quick check etc.
* First make sure that data is loaded by u_getCombiningClass(0x300)!=0
* or uprv_haveProperties() is true.
* @internal
*/
U_CFUNC uint8_t
u_internalGetCombiningClass(UChar32 c);
#endif