fix: coding style and file format for all example.

eBook/examples/chapter_11/node_structures.go

@@ -1,31 +1,31 @@
-// node_structures.go
-package main
-
-import "fmt"
-
-type Node struct {
-	le    *Node
-	data  interface{}
-	ri    *Node
-}
-
-func NewNode(left, right *Node) *Node {
-	return &Node{left, nil, right}
-}
-
-func (n *Node) SetData(data interface{}) {
-	n.data = data
-}
-
-func main() {
-	root := NewNode(nil,nil)
-	root.SetData("root node")
-	// make child (leaf) nodes:
-	a := NewNode(nil,nil)
-	a.SetData("left node")
-	b := NewNode(nil,nil)
-	b.SetData("right node")
-	root.le = a
-	root.ri = b
-	fmt.Printf("%v\n", root) // Output: &{0x125275f0 root node 0x125275e0}
-}
+// node_structures.go
+package main
+
+import "fmt"
+
+type Node struct {
+	le   *Node
+	data interface{}
+	ri   *Node
+}
+
+func NewNode(left, right *Node) *Node {
+	return &Node{left, nil, right}
+}
+
+func (n *Node) SetData(data interface{}) {
+	n.data = data
+}
+
+func main() {
+	root := NewNode(nil, nil)
+	root.SetData("root node")
+	// make child (leaf) nodes:
+	a := NewNode(nil, nil)
+	a.SetData("left node")
+	b := NewNode(nil, nil)
+	b.SetData("right node")
+	root.le = a
+	root.ri = b
+	fmt.Printf("%v\n", root) // Output: &{0x125275f0 root node 0x125275e0}
+}