exercism/go/pov/pov_helper.go

package pov

import (
	"fmt"
	"strings"
)

func PrintGraph(g *Graph) {
	for i := range g.leaves {
		PrintNode(&g.leaves[i], 1)
	}
}

func PrintNode(n *Node, lvl int) {
	fmt.Print(strings.Repeat("  ", lvl))
	if n.parent == nil {
		fmt.Println("{label:", n.label, "}")
	} else {
		fmt.Println("{label:", n.label, ", parent:", n.parent.label, "}")
	}
	for i := range n.leaves {
		PrintNode(&n.leaves[i], lvl+1)
	}
}