Fix score evaluation for multiple values in properties

Sometimes fonts has multiple values in family and sub-family in order to unify
other variants into one. they basically make difference in sub-family though,
they also still have standalone family and sub-family. in that case, sub-family is
likely to be Regular.

fontconfig couldn't recognize the difference between :family=Foo:style=Regular
and :family=Foo Caption:style=Regular for example because fontconfig didn't
give different score on matching result for the position of multiple values in
a cache.
Thus, when querying a font like :family=Foo:style=Regular may results
:family=Foo Caption:style=Regular. (see the test case for more details)

To fix this situation, giving different score according to the position
of multiple values in a cache as well as the position of multiple values
in a query.

Fixes https://gitlab.freedesktop.org/fontconfig/fontconfig/-/issues/283
This commit is contained in:
Akira TAGOH 2021-06-24 14:44:39 +09:00
parent d62d984e2b
commit da1c9f7a6c
5 changed files with 56 additions and 2 deletions

View File

@ -433,7 +433,7 @@ FcCompareValueList (FcObject object,
*result = FcResultTypeMismatch; *result = FcResultTypeMismatch;
return FcFalse; return FcFalse;
} }
v = v * 1000 + j; v = v * 1000 + j * 100 + k;
if (v < best) if (v < best)
{ {
if (bestValue) if (bestValue)

View File

@ -47,6 +47,7 @@ TESTDATA = \
test-45-generic.json \ test-45-generic.json \
test-60-generic.json \ test-60-generic.json \
test-90-synthetic.json \ test-90-synthetic.json \
test-style-match.json \
$(NULL) $(NULL)
if FREETYPE_PCF_LONG_FAMILY_NAMES if FREETYPE_PCF_LONG_FAMILY_NAMES

View File

@ -48,3 +48,9 @@ for i in \
echo $RUNNER $TESTDIR/../conf.d/$i $TESTDIR/$test_json echo $RUNNER $TESTDIR/../conf.d/$i $TESTDIR/$test_json
$RUNNER $TESTDIR/../conf.d/$i $TESTDIR/$test_json $RUNNER $TESTDIR/../conf.d/$i $TESTDIR/$test_json
done done
for i in \
test-style-match.json \
; do
echo $RUNNER $TESTDIR/$i ...
$RUNNER $TESTDIR/../conf.d/10-autohint.conf $TESTDIR/$i
done

View File

@ -166,6 +166,21 @@ build_pattern (json_object *obj)
continue; continue;
} }
} }
} else if (fc_o && fc_o->type == FcTypeString) {
for (i = 0; i < n; i++)
{
o = json_object_array_get_idx (iter.val, i);
type = json_object_get_type (o);
if (type != json_type_string) {
fprintf (stderr, "E: unable to convert to string\n");
continue;
}
v.type = FcTypeString;
v.u.s = (const FcChar8 *) json_object_get_string (o);
FcPatternAdd (pat, iter.key, v, FcTrue);
v.type = FcTypeVoid;
}
continue;
} else { } else {
FcLangSet* ls = FcLangSetCreate (); FcLangSet* ls = FcLangSetCreate ();
if (!ls) { if (!ls) {
@ -232,6 +247,7 @@ build_pattern (json_object *obj)
fprintf (stderr, "W: unexpected object to build a pattern: (%s %s)", iter.key, json_type_to_name (json_object_get_type (iter.val))); fprintf (stderr, "W: unexpected object to build a pattern: (%s %s)", iter.key, json_type_to_name (json_object_get_type (iter.val)));
continue; continue;
} }
if (v.type != FcTypeVoid)
FcPatternAdd (pat, iter.key, v, FcTrue); FcPatternAdd (pat, iter.key, v, FcTrue);
if (destroy_v) if (destroy_v)
FcValueDestroy (v); FcValueDestroy (v);

View File

@ -0,0 +1,31 @@
{
"fonts": [
{
"family": [ "Foo", "Foo Caption" ],
"style": [ "Caption", "Regular" ],
"file": "/path/to/Foo-Capt.ttf",
"fontversion": 133365
},
{
"family": "Foo",
"style": "Regular",
"file": "/path/to/Foo-Regular.ttf",
"fontversion": 133365
}
],
"tests": [
{
"method": "match",
"query": {
"family": "Foo",
"style": "Regular"
},
"result": {
"family": "Foo",
"style": "Regular",
"file": "/path/to/Foo-Regular.ttf",
"fontversion": 133365
}
}
]
}