/* {{{ grapheme_intl_case_fold: convert string to lowercase */
void
grapheme_intl_case_fold(UChar** ptr_to_free, UChar **str, int32_t *str_len, UErrorCode *pstatus )
{
UChar *dest;
int32_t dest_len, size_required;
/* allocate a destination string that is a bit larger than the src, hoping that is enough */
#ifdef FULL_CASE_FOLDING
dest_len = (*str_len) + ( *str_len / 10 );
#else
dest_len = (*str_len) + ( *str_len / 10 ) + 1; // assume we have enough for '\0'
#endif /* FULL_CASE_FOLDING */
dest = (UChar*) eumalloc(dest_len);
*pstatus = U_ZERO_ERROR;
#ifdef FULL_CASE_FOLDING
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, INTL_G(turkic_casefolding) ? U_FOLD_CASE_EXCLUDE_SPECIAL_I : U_FOLD_CASE_DEFAULT, pstatus);
#else
size_required = utf16_simple_case_folding(dest, dest_len, *str, *str_len, pstatus);
#endif /* FULL_CASE_FOLDING */
dest_len = size_required;
if ( U_BUFFER_OVERFLOW_ERROR == *pstatus ) {
dest = (UChar*) eurealloc(dest, dest_len);
*pstatus = U_ZERO_ERROR;
#ifdef FULL_CASE_FOLDING
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, INTL_G(turkic_casefolding) ? U_FOLD_CASE_EXCLUDE_SPECIAL_I : U_FOLD_CASE_DEFAULT, pstatus);
#else
size_required = utf16_simple_case_folding(dest, dest_len, *str, *str_len, pstatus);
#endif /* FULL_CASE_FOLDING */
}
if ( U_FAILURE(*pstatus) ) {
return;
}
if ( NULL != ptr_to_free) {
efree(*ptr_to_free);
*ptr_to_free = dest;
}
*str = dest;
*str_len = dest_len;
return;
}
int32_t __hs_u_strFoldCase(UChar *dest, int32_t destCapacity,
const UChar *src, int32_t srcLength,
uint32_t options, UErrorCode *pErrorCode)
{
return u_strFoldCase(dest, destCapacity, src, srcLength, options,
pErrorCode);
}
/* {{{ grapheme_intl_case_fold: convert string to lowercase */
void
grapheme_intl_case_fold(UChar** ptr_to_free, UChar **str, int32_t *str_len, UErrorCode *pstatus )
{
UChar *dest;
int32_t dest_len, size_required;
/* allocate a destination string that is a bit larger than the src, hoping that is enough */
dest_len = (*str_len) + ( *str_len / 10 );
dest = (UChar*) eumalloc(dest_len);
*pstatus = U_ZERO_ERROR;
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, U_FOLD_CASE_DEFAULT, pstatus);
dest_len = size_required;
if ( U_BUFFER_OVERFLOW_ERROR == *pstatus ) {
dest = (UChar*) eurealloc(dest, dest_len);
*pstatus = U_ZERO_ERROR;
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, U_FOLD_CASE_DEFAULT, pstatus);
}
if ( U_FAILURE(*pstatus) ) {
return;
}
if ( NULL != ptr_to_free) {
efree(*ptr_to_free);
*ptr_to_free = dest;
}
*str = dest;
*str_len = dest_len;
return;
}
static UBool changesWhenCasefolded(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) {
UnicodeString nfd;
UErrorCode errorCode=U_ZERO_ERROR;
const Normalizer2 *nfcNorm2=Normalizer2Factory::getNFCInstance(errorCode);
if(U_FAILURE(errorCode)) {
return FALSE;
}
if(nfcNorm2->getDecomposition(c, nfd)) {
/* c has a decomposition */
if(nfd.length()==1) {
c=nfd[0]; /* single BMP code point */
} else if(nfd.length()<=U16_MAX_LENGTH &&
nfd.length()==U16_LENGTH(c=nfd.char32At(0))
) {
/* single supplementary code point */
} else {
c=U_SENTINEL;
}
} else if(c<0) {
return FALSE; /* protect against bad input */
}
if(c>=0) {
/* single code point */
const UCaseProps *csp=ucase_getSingleton();
const UChar *resultString;
return (UBool)(ucase_toFullFolding(csp, c, &resultString, U_FOLD_CASE_DEFAULT)>=0);
} else {
/* guess some large but stack-friendly capacity */
UChar dest[2*UCASE_MAX_STRING_LENGTH];
int32_t destLength;
destLength=u_strFoldCase(dest, LENGTHOF(dest),
nfd.getBuffer(), nfd.length(),
U_FOLD_CASE_DEFAULT, &errorCode);
return (UBool)(U_SUCCESS(errorCode) &&
0!=u_strCompare(nfd.getBuffer(), nfd.length(),
dest, destLength, FALSE));
}
}
static uint32_t icu_utf16_sub(struct icu_buf_utf16 *dest16,
struct icu_buf_utf16 *src16,
const char *locale, char action,
UErrorCode *status)
{
switch (action)
{
case 'l':
case 'L':
return u_strToLower(dest16->utf16, dest16->utf16_cap,
src16->utf16, src16->utf16_len,
locale, status);
case 'u':
case 'U':
return u_strToUpper(dest16->utf16, dest16->utf16_cap,
src16->utf16, src16->utf16_len,
locale, status);
break;
case 't':
case 'T':
return u_strToTitle(dest16->utf16, dest16->utf16_cap,
src16->utf16, src16->utf16_len,
0, locale, status);
break;
case 'f':
case 'F':
return u_strFoldCase(dest16->utf16, dest16->utf16_cap,
src16->utf16, src16->utf16_len,
U_FOLD_CASE_DEFAULT, status);
break;
default:
*status = U_UNSUPPORTED_ERROR;
break;
}
return 0;
}
static void
TestCaseFolding(void) {
/*
* CaseFolding.txt says about i and its cousins:
* 0049; C; 0069; # LATIN CAPITAL LETTER I
* 0049; T; 0131; # LATIN CAPITAL LETTER I
*
* 0130; F; 0069 0307; # LATIN CAPITAL LETTER I WITH DOT ABOVE
* 0130; T; 0069; # LATIN CAPITAL LETTER I WITH DOT ABOVE
* That's all.
* See CaseFolding.txt and the Unicode Standard for how to apply the case foldings.
*/
static const UChar32
simple[]={
/* input, default, exclude special i */
0x61, 0x61, 0x61,
0x49, 0x69, 0x131,
0x130, 0x130, 0x69,
0x131, 0x131, 0x131,
0xdf, 0xdf, 0xdf,
0xfb03, 0xfb03, 0xfb03,
0x1040e,0x10436,0x10436,
0x5ffff,0x5ffff,0x5ffff
};
static const UChar
mixed[]= { 0x61, 0x42, 0x130, 0x49, 0x131, 0x3d0, 0xdf, 0xfb03, 0xd93f, 0xdfff },
foldedDefault[]= { 0x61, 0x62, 0x69, 0x307, 0x69, 0x131, 0x3b2, 0x73, 0x73, 0x66, 0x66, 0x69, 0xd93f, 0xdfff },
foldedExcludeSpecialI[]={ 0x61, 0x62, 0x69, 0x131, 0x131, 0x3b2, 0x73, 0x73, 0x66, 0x66, 0x69, 0xd93f, 0xdfff };
UVersionInfo unicodeVersion={ 0, 0, 17, 89 }, unicode_3_1={ 3, 1, 0, 0 };
const UChar32 *p;
int32_t i;
UChar buffer[32];
int32_t length;
UErrorCode errorCode;
UBool isUnicode_3_1;
/* if unicodeVersion()>=3.1 then test exclude-special-i cases as well */
u_getUnicodeVersion(unicodeVersion);
isUnicode_3_1= uprv_memcmp(unicodeVersion, unicode_3_1, 4)>=0;
/* test simple case folding */
p=simple;
for(i=0; i<sizeof(simple)/12; p+=3, ++i) {
if(u_foldCase(p[0], U_FOLD_CASE_DEFAULT)!=p[1]) {
log_err("error: u_foldCase(0x%04lx, default)=0x%04lx instead of 0x%04lx\n",
p[0], u_foldCase(p[0], U_FOLD_CASE_DEFAULT), p[1]);
return;
}
if(isUnicode_3_1 && u_foldCase(p[0], U_FOLD_CASE_EXCLUDE_SPECIAL_I)!=p[2]) {
log_err("error: u_foldCase(0x%04lx, exclude special i)=0x%04lx instead of 0x%04lx\n",
p[0], u_foldCase(p[0], U_FOLD_CASE_EXCLUDE_SPECIAL_I), p[2]);
return;
}
}
/* test full string case folding with default option and separate buffers */
buffer[0]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_DEFAULT,
&errorCode);
if( U_FAILURE(errorCode) ||
length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)!=0 ||
buffer[length]!=0
) {
log_err("error in u_strFoldCase(default)=%ld error=%s string matches: %s\n",
length,
u_errorName(errorCode),
uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no");
}
/* exclude special i */
if(isUnicode_3_1) {
buffer[0]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_EXCLUDE_SPECIAL_I,
&errorCode);
if( U_FAILURE(errorCode) ||
length!=(sizeof(foldedExcludeSpecialI)/U_SIZEOF_UCHAR) ||
uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)!=0 ||
buffer[length]!=0
) {
log_err("error in u_strFoldCase(exclude special i)=%ld error=%s string matches: %s\n",
length,
u_errorName(errorCode),
uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no");
}
}
/* test full string case folding with default option and in the same buffer */
uprv_memcpy(buffer, mixed, sizeof(mixed));
buffer[sizeof(mixed)/U_SIZEOF_UCHAR]=0;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
buffer, -1, /* implicit srcLength */
U_FOLD_CASE_DEFAULT,
&errorCode);
if( U_FAILURE(errorCode) ||
length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)!=0 ||
buffer[length]!=0
) {
log_err("error in u_strFoldCase(default same buffer)=%ld error=%s string matches: %s\n",
length,
u_errorName(errorCode),
uprv_memcmp(foldedDefault, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no");
}
/* test full string case folding, exclude special i, in the same buffer */
if(isUnicode_3_1) {
uprv_memcpy(buffer, mixed, sizeof(mixed));
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
buffer, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_EXCLUDE_SPECIAL_I,
&errorCode);
if( U_FAILURE(errorCode) ||
length!=(sizeof(foldedExcludeSpecialI)/U_SIZEOF_UCHAR) ||
uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)!=0 ||
buffer[length]!=0
) {
log_err("error in u_strFoldCase(exclude special i same buffer)=%ld error=%s string matches: %s\n",
length,
u_errorName(errorCode),
uprv_memcmp(foldedExcludeSpecialI, buffer, length*U_SIZEOF_UCHAR)==0 && buffer[length]==0 ? "yes" : "no");
}
}
/* test preflighting */
buffer[0]=buffer[2]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, 2, /* set destCapacity=2 */
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_DEFAULT,
&errorCode);
if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR) ||
uprv_memcmp(foldedDefault, buffer, 2*U_SIZEOF_UCHAR)!=0 ||
buffer[2]!=0xabcd
) {
log_err("error in u_strFoldCase(default preflighting)=%ld error=%s string matches: %s\n",
length,
u_errorName(errorCode),
uprv_memcmp(foldedDefault, buffer, 2*U_SIZEOF_UCHAR)==0 && buffer[2]==0xabcd ? "yes" : "no");
}
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(NULL, 0,
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_DEFAULT,
&errorCode);
if( errorCode!=U_BUFFER_OVERFLOW_ERROR ||
length!=(sizeof(foldedDefault)/U_SIZEOF_UCHAR)
) {
log_err("error in u_strFoldCase(default pure preflighting)=%ld error=%s\n",
length,
u_errorName(errorCode));
}
/* test error handling */
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(NULL, sizeof(buffer)/U_SIZEOF_UCHAR,
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_DEFAULT,
&errorCode);
if(errorCode!=U_ILLEGAL_ARGUMENT_ERROR) {
log_err("error in u_strFoldCase(default dest=NULL)=%ld error=%s\n",
length,
u_errorName(errorCode));
}
buffer[0]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, -1,
mixed, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_DEFAULT,
&errorCode);
if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
buffer[0]!=0xabcd
) {
log_err("error in u_strFoldCase(default destCapacity=-1)=%ld error=%s buffer[0]==0x%lx\n",
length,
u_errorName(errorCode),
buffer[0]);
}
buffer[0]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
NULL, sizeof(mixed)/U_SIZEOF_UCHAR,
U_FOLD_CASE_EXCLUDE_SPECIAL_I,
&errorCode);
if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
buffer[0]!=0xabcd
) {
log_err("error in u_strFoldCase(exclude special i src=NULL)=%ld error=%s buffer[0]==0x%lx\n",
length,
u_errorName(errorCode),
buffer[0]);
}
buffer[0]=0xabcd;
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, sizeof(buffer)/U_SIZEOF_UCHAR,
mixed, -2,
U_FOLD_CASE_EXCLUDE_SPECIAL_I,
&errorCode);
if( errorCode!=U_ILLEGAL_ARGUMENT_ERROR ||
buffer[0]!=0xabcd
) {
log_err("error in u_strFoldCase(exclude special i srcLength=-2)=%ld error=%s buffer[0]==0x%lx\n",
length,
u_errorName(errorCode),
buffer[0]);
}
}
U_CAPI UBool U_EXPORT2
u_hasBinaryProperty(UChar32 c, UProperty which) {
/* c is range-checked in the functions that are called from here */
if(which<UCHAR_BINARY_START || UCHAR_BINARY_LIMIT<=which) {
/* not a known binary property */
} else {
uint32_t mask=binProps[which].mask;
int32_t column=binProps[which].column;
if(mask!=0) {
/* systematic, directly stored properties */
return (u_getUnicodeProperties(c, column)&mask)!=0;
} else {
if(column==UPROPS_SRC_CASE) {
return ucase_hasBinaryProperty(c, which);
} else if(column==UPROPS_SRC_NORM) {
#if !UCONFIG_NO_NORMALIZATION
/* normalization properties from unorm.icu */
switch(which) {
case UCHAR_SEGMENT_STARTER:
return unorm_isCanonSafeStart(c);
default:
break;
}
#endif
} else if(column==UPROPS_SRC_NFC) {
#if !UCONFIG_NO_NORMALIZATION
UErrorCode errorCode=U_ZERO_ERROR;
switch(which) {
case UCHAR_FULL_COMPOSITION_EXCLUSION: {
// By definition, Full_Composition_Exclusion is the same as NFC_QC=No.
const Normalizer2Impl *impl=Normalizer2Factory::getNFCImpl(errorCode);
return U_SUCCESS(errorCode) && impl->isCompNo(impl->getNorm16(c));
break;
}
default: {
// UCHAR_NF[CD]_INERT properties
const Normalizer2 *norm2=Normalizer2Factory::getInstance(
(UNormalizationMode)(which-UCHAR_NFD_INERT+UNORM_NFD), errorCode);
return U_SUCCESS(errorCode) && norm2->isInert(c);
}
}
#endif
} else if(column==UPROPS_SRC_NFKC) {
#if !UCONFIG_NO_NORMALIZATION
// UCHAR_NFK[CD]_INERT properties
UErrorCode errorCode=U_ZERO_ERROR;
const Normalizer2 *norm2=Normalizer2Factory::getInstance(
(UNormalizationMode)(which-UCHAR_NFD_INERT+UNORM_NFD), errorCode);
return U_SUCCESS(errorCode) && norm2->isInert(c);
#endif
} else if(column==UPROPS_SRC_NFKC_CF) {
// currently only for UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED
#if !UCONFIG_NO_NORMALIZATION
UErrorCode errorCode=U_ZERO_ERROR;
const Normalizer2Impl *kcf=Normalizer2Factory::getNFKC_CFImpl(errorCode);
if(U_SUCCESS(errorCode)) {
UnicodeString src(c);
UnicodeString dest;
{
// The ReorderingBuffer must be in a block because its destructor
// needs to release dest's buffer before we look at its contents.
ReorderingBuffer buffer(*kcf, dest);
// Small destCapacity for NFKC_CF(c).
if(buffer.init(5, errorCode)) {
const UChar *srcArray=src.getBuffer();
kcf->compose(srcArray, srcArray+src.length(), FALSE,
TRUE, buffer, errorCode);
}
}
return U_SUCCESS(errorCode) && dest!=src;
}
#endif
} else if(column==UPROPS_SRC_BIDI) {
/* bidi/shaping properties */
const UBiDiProps *bdp=GET_BIDI_PROPS();
if(bdp!=NULL) {
switch(which) {
case UCHAR_BIDI_MIRRORED:
return ubidi_isMirrored(bdp, c);
case UCHAR_BIDI_CONTROL:
return ubidi_isBidiControl(bdp, c);
case UCHAR_JOIN_CONTROL:
return ubidi_isJoinControl(bdp, c);
default:
break;
}
}
/* else return FALSE below */
} else if(column==UPROPS_SRC_CHAR) {
switch(which) {
case UCHAR_POSIX_BLANK:
return u_isblank(c);
case UCHAR_POSIX_GRAPH:
return u_isgraphPOSIX(c);
case UCHAR_POSIX_PRINT:
return u_isprintPOSIX(c);
case UCHAR_POSIX_XDIGIT:
return u_isxdigit(c);
default:
break;
}
} else if(column==UPROPS_SRC_CHAR_AND_PROPSVEC) {
switch(which) {
case UCHAR_POSIX_ALNUM:
return u_isalnumPOSIX(c);
default:
break;
}
} else if(column==UPROPS_SRC_CASE_AND_NORM) {
#if !UCONFIG_NO_NORMALIZATION
UChar nfdBuffer[4];
const UChar *nfd;
int32_t nfdLength;
UErrorCode errorCode=U_ZERO_ERROR;
const Normalizer2Impl *nfcImpl=Normalizer2Factory::getNFCImpl(errorCode);
if(U_FAILURE(errorCode)) {
return FALSE;
}
switch(which) {
case UCHAR_CHANGES_WHEN_CASEFOLDED:
nfd=nfcImpl->getDecomposition(c, nfdBuffer, nfdLength);
if(nfd!=NULL) {
/* c has a decomposition */
if(nfdLength==1) {
c=nfd[0]; /* single BMP code point */
} else if(nfdLength<=U16_MAX_LENGTH) {
int32_t i=0;
U16_NEXT(nfd, i, nfdLength, c);
if(i==nfdLength) {
/* single supplementary code point */
} else {
c=U_SENTINEL;
}
} else {
c=U_SENTINEL;
}
} else if(c<0) {
return FALSE; /* protect against bad input */
}
errorCode=U_ZERO_ERROR;
if(c>=0) {
/* single code point */
const UCaseProps *csp=ucase_getSingleton(&errorCode);
const UChar *resultString;
return (UBool)(ucase_toFullFolding(csp, c, &resultString, U_FOLD_CASE_DEFAULT)>=0);
} else {
/* guess some large but stack-friendly capacity */
UChar dest[2*UCASE_MAX_STRING_LENGTH];
int32_t destLength;
destLength=u_strFoldCase(dest, LENGTHOF(dest), nfd, nfdLength, U_FOLD_CASE_DEFAULT, &errorCode);
return (UBool)(U_SUCCESS(errorCode) && 0!=u_strCompare(nfd, nfdLength, dest, destLength, FALSE));
}
default:
break;
}
#endif
}
}
}
return FALSE;
}
static void demoCaseMapInC() {
/*
* input=
* "aB<capital sigma>"
* "iI<small dotless i><capital dotted I> "
* "<sharp s> <small lig. ffi>"
* "<small final sigma><small sigma><capital sigma>"
*/
static const UChar input[]={
0x61, 0x42, 0x3a3,
0x69, 0x49, 0x131, 0x130, 0x20,
0xdf, 0x20, 0xfb03,
0x3c2, 0x3c3, 0x3a3, 0
};
UChar buffer[32];
UErrorCode errorCode;
UChar32 c;
int32_t i, j, length;
UBool isError;
printf("\n* demoCaseMapInC() ----------------- ***\n\n");
/*
* First, use simple case mapping functions which provide
* 1:1 code point mappings without context/locale ID.
*
* Note that some mappings will not be "right" because some "real"
* case mappings require context, depend on the locale ID,
* and/or result in a change in the number of code points.
*/
printUString("input string: ", input, -1);
/* uppercase */
isError=FALSE;
for(i=j=0; j<UPRV_LENGTHOF(buffer) && !isError; /* U16_NEXT post-increments */) {
U16_NEXT(input, i, INT32_MAX, c); /* without length because NUL-terminated */
if(c==0) {
break; /* stop at terminating NUL, no need to terminate buffer */
}
c=u_toupper(c);
U16_APPEND(buffer, j, UPRV_LENGTHOF(buffer), c, isError);
}
printUString("simple-uppercased: ", buffer, j);
/* lowercase */
isError=FALSE;
for(i=j=0; j<UPRV_LENGTHOF(buffer) && !isError; /* U16_NEXT post-increments */) {
U16_NEXT(input, i, INT32_MAX, c); /* without length because NUL-terminated */
if(c==0) {
break; /* stop at terminating NUL, no need to terminate buffer */
}
c=u_tolower(c);
U16_APPEND(buffer, j, UPRV_LENGTHOF(buffer), c, isError);
}
printUString("simple-lowercased: ", buffer, j);
/* titlecase */
isError=FALSE;
for(i=j=0; j<UPRV_LENGTHOF(buffer) && !isError; /* U16_NEXT post-increments */) {
U16_NEXT(input, i, INT32_MAX, c); /* without length because NUL-terminated */
if(c==0) {
break; /* stop at terminating NUL, no need to terminate buffer */
}
c=u_totitle(c);
U16_APPEND(buffer, j, UPRV_LENGTHOF(buffer), c, isError);
}
printUString("simple-titlecased: ", buffer, j);
/* case-fold/default */
isError=FALSE;
for(i=j=0; j<UPRV_LENGTHOF(buffer) && !isError; /* U16_NEXT post-increments */) {
U16_NEXT(input, i, INT32_MAX, c); /* without length because NUL-terminated */
if(c==0) {
break; /* stop at terminating NUL, no need to terminate buffer */
}
c=u_foldCase(c, U_FOLD_CASE_DEFAULT);
U16_APPEND(buffer, j, UPRV_LENGTHOF(buffer), c, isError);
}
printUString("simple-case-folded/default: ", buffer, j);
/* case-fold/Turkic */
isError=FALSE;
for(i=j=0; j<UPRV_LENGTHOF(buffer) && !isError; /* U16_NEXT post-increments */) {
U16_NEXT(input, i, INT32_MAX, c); /* without length because NUL-terminated */
if(c==0) {
break; /* stop at terminating NUL, no need to terminate buffer */
}
c=u_foldCase(c, U_FOLD_CASE_EXCLUDE_SPECIAL_I);
U16_APPEND(buffer, j, UPRV_LENGTHOF(buffer), c, isError);
}
printUString("simple-case-folded/Turkic: ", buffer, j);
/*
* Second, use full case mapping functions which provide
* 1:n code point mappings (n can be 0!) and are sensitive to context and locale ID.
*
* Note that lower/upper/titlecasing take a locale ID while case-folding
* has bit flag options instead, by design of the Unicode SpecialCasing.txt UCD file.
*
* Also, string titlecasing requires a BreakIterator to find starts of words.
* The sample code here passes in a NULL pointer; u_strToTitle() will open and close a default
* titlecasing BreakIterator automatically.
* For production code where many strings are titlecased it would be more efficient
* to open a BreakIterator externally and pass it in.
*/
printUString("\ninput string: ", input, -1);
/* lowercase/English */
errorCode=U_ZERO_ERROR;
length=u_strToLower(buffer, UPRV_LENGTHOF(buffer), input, -1, "en", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-lowercased/en: ", buffer, length);
} else {
printf("error in u_strToLower(en)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* lowercase/Turkish */
errorCode=U_ZERO_ERROR;
length=u_strToLower(buffer, UPRV_LENGTHOF(buffer), input, -1, "tr", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-lowercased/tr: ", buffer, length);
} else {
printf("error in u_strToLower(tr)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* uppercase/English */
errorCode=U_ZERO_ERROR;
length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer), input, -1, "en", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-uppercased/en: ", buffer, length);
} else {
printf("error in u_strToUpper(en)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* uppercase/Turkish */
errorCode=U_ZERO_ERROR;
length=u_strToUpper(buffer, UPRV_LENGTHOF(buffer), input, -1, "tr", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-uppercased/tr: ", buffer, length);
} else {
printf("error in u_strToUpper(tr)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* titlecase/English */
errorCode=U_ZERO_ERROR;
length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer), input, -1, NULL, "en", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-titlecased/en: ", buffer, length);
} else {
printf("error in u_strToTitle(en)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* titlecase/Turkish */
errorCode=U_ZERO_ERROR;
length=u_strToTitle(buffer, UPRV_LENGTHOF(buffer), input, -1, NULL, "tr", &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-titlecased/tr: ", buffer, length);
} else {
printf("error in u_strToTitle(tr)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* case-fold/default */
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer), input, -1, U_FOLD_CASE_DEFAULT, &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-case-folded/default: ", buffer, length);
} else {
printf("error in u_strFoldCase(default)=%ld error=%s\n", length, u_errorName(errorCode));
}
/* case-fold/Turkic */
errorCode=U_ZERO_ERROR;
length=u_strFoldCase(buffer, UPRV_LENGTHOF(buffer), input, -1, U_FOLD_CASE_EXCLUDE_SPECIAL_I, &errorCode);
if(U_SUCCESS(errorCode)) {
printUString("full-case-folded/Turkic: ", buffer, length);
} else {
printf("error in u_strFoldCase(Turkic)=%ld error=%s\n", length, u_errorName(errorCode));
}
}