attributer interface

node/scalar/dnumber.go

@@ -26,6 +26,14 @@ func (n Dnumber) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n Dnumber) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n Dnumber) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n Dnumber) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/encapsed.go

@@ -26,6 +26,14 @@ func (n Encapsed) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n Encapsed) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n Encapsed) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n Encapsed) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/encapsed_string_part.go

@@ -26,6 +26,14 @@ func (n EncapsedStringPart) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n EncapsedStringPart) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n EncapsedStringPart) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n EncapsedStringPart) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/lnumber.go

@@ -26,6 +26,14 @@ func (n Lnumber) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n Lnumber) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n Lnumber) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n Lnumber) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/magic_constant.go

@@ -26,6 +26,14 @@ func (n MagicConstant) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n MagicConstant) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n MagicConstant) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n MagicConstant) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/string.go

@@ -27,6 +27,14 @@ func (n String) Attributes() map[string]interface{} {
 	return n.attributes
 }
 
+func (n String) Attribute(key string) interface{} {
+	return n.attributes[key]
+}
+
+func (n String) SetAttribute(key string, value interface{}) {
+	n.attributes[key] = value
+}
+
 func (n String) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return