Fix typos found by codespell (#284)

element.go

@@ -59,7 +59,7 @@ func (e *Element) String() string {
 
 // Value represents a DICOM value. The underlying data that a Value stores can be determined by inspecting its
 // ValueType. DICOM values typically can be one of many types (ints, strings, bytes, sequences of other elements, etc),
-// so this Value interface attempts to represent this as canoically as possible in Golang (since generics do not exist
+// so this Value interface attempts to represent this as canonically as possible in Golang (since generics do not exist
 // yet).
 //
 // Value is JSON serializable out of the box (implements json.Marshaler).

pkg/frame/native.go

@@ -12,7 +12,7 @@ import (
 var ErrUnsupportedSamplesPerPixel = errors.New("unsupported samples per pixel")
 
 // INativeFrame is an interface representation of NativeFrame[I]'s capabilities,
-// and offers a way to use a NativeFrame _without_ requiring propogation of
+// and offers a way to use a NativeFrame _without_ requiring propagation of
 // type parameters. This allows for some more ergonomic signatures, though
 // NativeFrame[I] can be used directly as well for those who prefer it.
 type INativeFrame interface {

pkg/personname/groupInfo_test.go

@@ -360,7 +360,7 @@ func TestNewPersonNameFromDicom(t *testing.T) {
 
 			if tc.IsEmpty != parsed.IsEmpty() {
 				t.Errorf(
-					".IsEmpty() returned %v, extected %v",
+					".IsEmpty() returned %v, expected %v",
 					parsed.IsEmpty(),
 					tc.IsEmpty,
 				)
@@ -387,7 +387,7 @@ func TestGroupInfo_DCM_interiorNullsExceedTrailingLevel(t *testing.T) {
 	}
 
 	if dcm != "CROUCH^^^^JR" {
-		t.Errorf("dcm returned uneexpected value: %v", dcm)
+		t.Errorf("dcm returned unexpected value: %v", dcm)
 	}
 }
 

pkg/uid/uid.go

@@ -43,7 +43,7 @@ func CanonicalTransferSyntaxUID(uid string) (string, error) {
 }
 
 // ParseTransferSyntaxUID parses a transfer syntax uid and returns its byteorder
-// and implicitVR/explicitVR type.  TrasnferSyntaxUID can be any UID that refers to
+// and implicitVR/explicitVR type.  TransferSyntaxUID can be any UID that refers to
 // a transfer syntax. It can be, e.g., 1.2.840.10008.1.2 (it will return
 // LittleEndian, ImplicitVR) or 1.2.840.10008.1.2.4.54 (it will return
 // (LittleEndian, ExplicitVR).

read_test.go

@@ -751,7 +751,7 @@ func TestReadHeader_TryAllowErrorMetaElementGroupLength(t *testing.T) {
 	t.Run("NoFileMetaInformationGroupLength", func(t *testing.T) {
 		dcmheaderNoInfoGrpLen, err := headerWithNoFileMetaInformationGroupLength()
 		if err != nil {
-			t.Fatalf("unsuccesful generation of fake header data")
+			t.Fatalf("unsuccessful generation of fake header data")
 		} else {
 			r := &reader{
 				rawReader: dicomio.NewReader(bufio.NewReader(dcmheaderNoInfoGrpLen.HeaderBytes), binary.LittleEndian, int64(dcmheaderNoInfoGrpLen.HeaderBytes.Len())),
@@ -772,7 +772,7 @@ func TestReadHeader_TryAllowErrorMetaElementGroupLength(t *testing.T) {
 	t.Run("WithFileMetaInformationGroupLength", func(t *testing.T) {
 		dcmHeaderInfoGrpLen, err := headerWithFileMetaInformationGroupLength()
 		if err != nil {
-			t.Fatalf("unsuccesful generation of fake header data with FileMetaInformationGroupLength")
+			t.Fatalf("unsuccessful generation of fake header data with FileMetaInformationGroupLength")
 		} else {
 			r := &reader{
 				rawReader: dicomio.NewReader(bufio.NewReader(dcmHeaderInfoGrpLen.HeaderBytes), binary.LittleEndian, int64(dcmHeaderInfoGrpLen.HeaderBytes.Len())),
@@ -781,7 +781,7 @@ func TestReadHeader_TryAllowErrorMetaElementGroupLength(t *testing.T) {
 			r.rawReader.SetTransferSyntax(binary.LittleEndian, true)
 			wantElements, err := r.readHeader()
 			if err != nil {
-				t.Errorf("unsuccesful readHeader when parse option %v is turned on and header has no MetaElementGroupLength tag", opts.allowMissingMetaElementGroupLength)
+				t.Errorf("unsuccessful readHeader when parse option %v is turned on and header has no MetaElementGroupLength tag", opts.allowMissingMetaElementGroupLength)
 			}
 			// Ensure dataset read from readHeader and the test header are the same except for the ValueLength field.
 			if diff := cmp.Diff(wantElements, dcmHeaderInfoGrpLen.Elements, cmp.AllowUnexported(allValues...), cmpopts.IgnoreFields(Element{}, "ValueLength")); diff != "" {

write.go

@@ -358,7 +358,7 @@ func verifyVROrDefault(t tag.Tag, vr string, opts writeOptSet) (string, error) {
 
 	// Verify the VR on the way out if the caller wants it.
 	if !opts.skipVRVerification && !slices.Contains(tagInfo.VRs, vr) {
-		return "", fmt.Errorf("ERROR dicomio.veryifyElement: VR mismatch for tag %v. Element.VR=%v, but DICOM standard defines VR to be %v",
+		return "", fmt.Errorf("ERROR dicomio.verifyElement: VR mismatch for tag %v. Element.VR=%v, but DICOM standard defines VR to be %v",
 			tag.DebugString(t), vr, tagInfo.VRs)
 	}