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ICU-1801 made canonical iterator a bit more robust to error conditions passed from outside

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X-SVN-Rev: 8258
This commit is contained in:
Vladimir Weinstein 2002-03-27 06:27:19 +00:00
parent bfdc8e7de3
commit a6014eee44
1 changed files with 14 additions and 5 deletions
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19
icu4c/source/i18n/caniter.cpp
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@ -5,8 +5,8 @@
*******************************************************************************
*
* $Source: /xsrl/Nsvn/icu/icu/source/i18n/Attic/caniter.cpp,v $
* $Date: 2002/03/21 22:10:46 $
* $Revision: 1.15 $
* $Date: 2002/03/27 06:27:19 $
* $Revision: 1.16 $
*
*****************************************************************************************
*/
@ -84,9 +84,13 @@ static const UnicodeString &Tr(const UnicodeString &source) {
CanonicalIterator::CanonicalIterator(UnicodeString source, UErrorCode &status) :
pieces(NULL),
pieces_lengths(NULL),
current(NULL)
current(NULL),
current_length(0),
pieces_length(0)
{
setSource(source, status);
if(U_SUCCESS(status)) {
setSource(source, status);
}
}
CanonicalIterator::~CanonicalIterator() {
@ -166,6 +170,9 @@ UnicodeString CanonicalIterator::next() {
* while changing the source string, saving object creation.
*/
void CanonicalIterator::setSource(const UnicodeString &newSource, UErrorCode &status) {
if(U_FAILURE(status)) {
return;
}
Normalizer::normalize(newSource, UNORM_NFD, 0, source, status);
done = FALSE;
@ -236,13 +243,15 @@ void CanonicalIterator::setSource(const UnicodeString &newSource, UErrorCode &st
* @return the results in a set.
*/
void CanonicalIterator::permute(UnicodeString &source, UBool skipZeros, Hashtable *result, UErrorCode &status) {
if(U_FAILURE(status)) {
return;
}
//if (PROGRESS) printf("Permute: %s\n", UToS(Tr(source)));
int32_t i = 0;
// optimization:
// if zero or one character, just return a set with it
// we check for length < 2 to keep from counting code points all the time
//if (source.length() <= 2 && UTF16_CHAR_LENGTH(source.char32At(0)) <= 1) {
if (source.length() <= 2 && source.countChar32() <= 1) {
UnicodeString *toPut = new UnicodeString(source);
result->put(source, toPut, status);