add MergeSamePropRunsOf

structtext.go

@@ -122,6 +122,50 @@ func MergeSamePropRuns(r1, r2 *Run) bool {
 	return true
 }
 
+// MergeSamePropRunsOf merges runs with the same properties of names
+func MergeSamePropRunsOf(name ...string) RunMergeRule {
+	return func(r1, r2 *Run) bool {
+		if r1 == nil || r2 == nil {
+			return false
+		}
+		if r1.RunProperties == r2.RunProperties {
+			return true
+		}
+		if r1.RunProperties == nil && r2.RunProperties != nil {
+			return false
+		}
+		if r1.RunProperties != nil && r2.RunProperties == nil {
+			return false
+		}
+		rr1 := reflect.ValueOf(r1.RunProperties).Elem()
+		rr2 := reflect.ValueOf(r2.RunProperties).Elem()
+		for _, n := range name {
+			x1 := rr1.FieldByName(n)
+			x2 := rr2.FieldByName(n)
+			if x1.IsZero() && x2.IsZero() {
+				continue
+			}
+			if x1.IsZero() && !x2.IsZero() {
+				return false
+			}
+			if !x1.IsZero() && x2.IsZero() {
+				return false
+			}
+			xx1 := x1.Elem()
+			if xx1.NumField() <= 1 {
+				continue
+			}
+			xx2 := x2.Elem()
+			for j := 1; j < xx1.NumField(); j++ {
+				if !xx1.Field(j).Equal(xx2.Field(j)) {
+					return false
+				}
+			}
+		}
+		return true
+	}
+}
+
 // MergeText will merge contiguous run texts in a paragraph into one run
 //
 //	note: np is not a deep-copy

structtext_test.go

@@ -187,8 +187,9 @@ const xml2merge = `<w:p w14:paraId="343EA723" w14:textId="17A5316C" w:rsidR="00B
 </w:p>`
 
 const (
-	allmergedtext  = `某某某大学2016-2017学年第1学期期末考试A卷`
-	propmergedtext = `某某某大学201|6|-201|7|学年第|1|学期期|末|考试||A||卷|`
+	allmergedtext      = `某某某大学2016-2017学年第1学期期末考试A卷`
+	propmergedtext     = `某某某大学201|6|-201|7|学年第|1|学期期|末|考试||A||卷|`
+	namedpropmergdtext = `某某某大学2016-2017学年第|1|学期期|末|考试|A|卷|`
 )
 
 func TestMergeText(t *testing.T) {
@@ -224,4 +225,21 @@ func TestMergeText(t *testing.T) {
 	if sb.String() != propmergedtext {
 		t.Fatal("expected merged text [", propmergedtext, "] but has [", sb.String(), "]")
 	}
+	np = p.MergeText(MergeSamePropRunsOf("Bold", "Size", "Underline"))
+	if len(np.Children) != 7 {
+		t.Fatal("expected 7 runs but has", len(np.Children))
+	}
+	sb.Reset()
+	for _, r := range np.Children {
+		if len(r.(*Run).Children) > 1 {
+			t.Fatal("expected 0/1 run.child but has", len(r.(*Run).Children))
+		}
+		if len(r.(*Run).Children) == 1 {
+			sb.WriteString(r.(*Run).Children[0].(*Text).Text)
+		}
+		sb.WriteString("|")
+	}
+	if sb.String() != namedpropmergdtext {
+		t.Fatal("expected merged text [", namedpropmergdtext, "] but has [", sb.String(), "]")
+	}
 }