refactor position package

pkg/position/position.go

@@ -0,0 +1,27 @@
+package position
+
+import (
+	"fmt"
+)
+
+// Position represents node position
+type Position struct {
+	StartLine int
+	EndLine   int
+	StartPos  int
+	EndPos    int
+}
+
+// NewPosition Position constructor
+func NewPosition(StartLine int, EndLine int, StartPos int, EndPos int) *Position {
+	return &Position{
+		StartLine: StartLine,
+		EndLine:   EndLine,
+		StartPos:  StartPos,
+		EndPos:    EndPos,
+	}
+}
+
+func (p Position) String() string {
+	return fmt.Sprintf("Pos{Line: %d-%d Pos: %d-%d}", p.StartLine, p.EndLine, p.StartPos, p.EndPos)
+}