public void ForCodePoint(CollationData d, int c)
{
int ce32 = d.GetCE32(c);
if (ce32 == Collation.FALLBACK_CE32)
{
d = d.Base;
ce32 = d.GetCE32(c);
}
data = d;
HandleCE32(c, c, ce32);
}
// Java porting note: ICU4C returns U_SUCCESS(error) and it's not applicable to ICU4J.
// Also, ICU4C requires handleCE32() to be public because it is used by the callback
// function (enumTailoredRange()). This is not necessary for Java implementation.
private void HandleCE32(int start, int end, int ce32)
{
Debug.Assert(ce32 != Collation.FALLBACK_CE32);
if (Collation.IsSpecialCE32(ce32))
{
ce32 = data.GetIndirectCE32(ce32);
if (ce32 == Collation.FALLBACK_CE32)
{
return;
}
}
do
{
int baseCE32 = baseData.GetFinalCE32(baseData.GetCE32(start));
// Do not just continue if ce32 == baseCE32 because
// contractions and expansions in different data objects
// normally differ even if they have the same data offsets.
if (Collation.IsSelfContainedCE32(ce32) && Collation.IsSelfContainedCE32(baseCE32))
{
// fastpath
if (ce32 != baseCE32)
{
tailored.Add(start);
}
}
else
{
Compare(start, ce32, baseCE32);
}
} while (++start <= end);
}
private void GetCEs(CollationData data)
{
int i = 0;
for (char c = (char)0; ; ++i, ++c)
{
if (c == CollationFastLatin.LatinLimit)
{
c = (char)CollationFastLatin.PUNCT_START;
}
else if (c == CollationFastLatin.PUNCT_LIMIT)
{
break;
}
CollationData d;
int ce32 = data.GetCE32(c);
if (ce32 == Collation.FALLBACK_CE32)
{
d = data.Base;
ce32 = d.GetCE32(c);
}
else
{
d = data;
}
if (GetCEsFromCE32(d, c, ce32))
{
charCEs[i][0] = ce0;
charCEs[i][1] = ce1;
AddUniqueCE(ce0);
AddUniqueCE(ce1);
}
else
{
// bail out for c
charCEs[i][0] = ce0 = Collation.NoCE;
charCEs[i][1] = ce1 = 0;
}
if (c == 0 && !IsContractionCharCE(ce0))
{
// Always map U+0000 to a contraction.
// Write a contraction list with only a default value if there is no real contraction.
Debug.Assert(contractionCEs.Count == 0);
AddContractionEntry(CollationFastLatin.CONTR_CHAR_MASK, ce0, ce1);
charCEs[0][0] = (Collation.NO_CE_PRIMARY << 32) | CONTRACTION_FLAG;
charCEs[0][1] = 0;
}
}
// Terminate the last contraction list.
contractionCEs.Add(CollationFastLatin.CONTR_CHAR_MASK);
}