static FcBool
FcCompare (FcPattern *pat,
FcPattern *fnt,
double *value,
FcResult *result)
{
int i, i1, i2;
for (i = 0; i < NUM_MATCH_VALUES; i++)
value[i] = 0.0;
i1 = 0;
i2 = 0;
while (i1 < pat->num && i2 < fnt->num)
{
FcPatternElt *elt_i1 = &FcPatternElts(pat)[i1];
FcPatternElt *elt_i2 = &FcPatternElts(fnt)[i2];
i = FcObjectCompare(elt_i1->object, elt_i2->object);
if (i > 0)
i2++;
else if (i < 0)
i1++;
else
{
const FcMatcher *match = FcObjectToMatcher (elt_i1->object, FcFalse);
if (!FcCompareValueList (elt_i1->object, match,
FcPatternEltValues(elt_i1),
FcPatternEltValues(elt_i2),
NULL, value, NULL, result))
return FcFalse;
i1++;
i2++;
}
}
return FcTrue;
}
static FcBool
FcCompareValueList (FcObject object,
FcValueListPtr v1orig, /* pattern */
FcValueListPtr v2orig, /* target */
FcValue *bestValue,
double *value,
FcResult *result)
{
FcValueListPtr v1, v2;
double v, best, bestStrong, bestWeak;
int j;
const FcMatcher *match = FcObjectToMatcher(object);
if (!match)
{
if (bestValue)
*bestValue = FcValueCanonicalize(&v2orig->value);
return FcTrue;
}
best = 1e99;
bestStrong = 1e99;
bestWeak = 1e99;
j = 1;
for (v1 = v1orig; v1; v1 = FcValueListNext(v1))
{
for (v2 = v2orig; v2; v2 = FcValueListNext(v2))
{
v = (match->compare) (&v1->value, &v2->value);
if (v < 0)
{
*result = FcResultTypeMismatch;
return FcFalse;
}
v = v * 1000 + j;
if (v < best)
{
if (bestValue)
*bestValue = FcValueCanonicalize(&v2->value);
best = v;
}
if (v1->binding == FcValueBindingStrong)
{
if (v < bestStrong)
bestStrong = v;
}
else
{
if (v < bestWeak)
bestWeak = v;
}
}
j++;
}
if (FcDebug () & FC_DBG_MATCHV)
{
printf (" %s: %g ", FcObjectName (object), best);
FcValueListPrint (v1orig);
printf (", ");
FcValueListPrint (v2orig);
printf ("\n");
}
if (value)
{
int weak = match->weak;
int strong = match->strong;
if (weak == strong)
value[strong] += best;
else
{
value[weak] += bestWeak;
value[strong] += bestStrong;
}
}
return FcTrue;
}