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ICU-1970 add API for FC_NFKC_Closure

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X-SVN-Rev: 9035
This commit is contained in:
Markus Scherer 2002-07-04 00:18:35 +00:00
parent 40e2f9754a
commit ee5e768e09
2 changed files with 39 additions and 1 deletions
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38
icu4c/source/common/unorm.cpp
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@ -714,6 +714,44 @@ unorm_getCanonStartSet(UChar32 c, USerializedSet *fillSet) {
return FALSE; /* not found */
}
U_CAPI int32_t U_EXPORT2
u_getFC_NFKC_Closure(UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode) {
uint16_t aux;
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
return 0;
}
if(destCapacity<0 || (dest==NULL && destCapacity>0)) {
*pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
if(!_haveData(*pErrorCode) || !formatVersion_2_1) {
return 0;
}
UTRIE_GET16(&auxTrie, c, aux);
aux&=_NORM_AUX_FNC_MASK;
if(aux!=0) {
const UChar *s;
int32_t length;
s=extraData+aux;
if(*s<0xff00) {
/* s points to the single-unit string */
length=1;
} else {
length=*s&0xff;
++s;
}
if(0<length && length<=destCapacity) {
uprv_memcpy(dest, s, length*U_SIZEOF_UCHAR);
}
return u_terminateUChars(dest, destCapacity, length, pErrorCode);
} else {
return 0;
}
}
/* reorder UTF-16 in-place -------------------------------------------------- */
/*

2
icu4c/source/common/unormimp.h
View file

@ -531,7 +531,7 @@ unorm_getCanonStartSet(UChar32 c, USerializedSet *fillSet);
*
* Strings are either stored as a single code unit or as the length
* followed by that many units.
* const UChar *s=extraData+(index from auxTrie data bits 29..20);
* const UChar *s=extraData+(index from auxTrie data bits 9..0);
* int32_t length;
* if(*s<0xff00) {
* // s points to the single-unit string