X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=src%2Ffcpat.c;h=350c4c288d48258db9d9602627098c5a15dcd169;hb=41fc0fe68d88c1fdd38469a51a322dab6a30757d;hp=35127f2a38558751fd09178bd7f49fcdac695740;hpb=e6f14d3c513a9f2e7d75c389db4f65aa0dc0502f;p=fontconfig.git

diff --git a/src/fcpat.c b/src/fcpat.c
index 35127f2..350c4c2 100644
--- a/src/fcpat.c
+++ b/src/fcpat.c
@@ -997,6 +997,43 @@ FcPatternAppend (FcPattern *p, FcPattern *s)
     return FcTrue;
 }
 
+FcPattern *
+FcPatternFilter (FcPattern *p, const FcObjectSet *os)
+{
+    int		    i;
+    FcPattern	    *ret;
+    FcPatternElt    *e;
+    FcValueListPtr  v;
+
+    if (!os)
+	return FcPatternDuplicate (p);
+
+    ret = FcPatternCreate ();
+    if (!ret)
+	return NULL;
+
+    for (i = 0; i < os->nobject; i++)
+    {
+	FcObject object = FcObjectFromName (os->objects[i]);
+	e = FcPatternObjectFindElt (p, object);
+	if (e)
+	{
+	    for (v = FcPatternEltValues(e); v; v = FcValueListNext(v))
+	    {
+		if (!FcPatternObjectAddWithBinding (ret, e->object,
+						    FcValueCanonicalize(&v->value),
+						    v->binding, FcTrue))
+		    goto bail0;
+	    }
+	}
+    }
+    return p;
+
+bail0:
+    FcPatternDestroy (ret);
+    return NULL;
+}
+
 #define OBJECT_HASH_SIZE    31
 static struct objectBucket {
     struct objectBucket	*next;