update parse format

node.go

@@ -85,13 +85,12 @@ func (n *rootNode) String() string {
 }
 
 func (n *rootNode) pretty(w io.Writer, prefix string) error {
-	fmt.Fprintf(w, "%sroot{\n", prefix)
+	fmt.Fprintf(w, "%sroot:\n", prefix)
 	for _, child := range n.children {
 		if err := child.pretty(w, prefix+indent); err != nil {
 			return err
 		}
 	}
-	fmt.Fprintf(w, "%s}\n", prefix)
 	return nil
 }
 
@@ -121,8 +120,8 @@ func (n *commentNode) String() string {
 }
 
 func (n *commentNode) pretty(w io.Writer, prefix string) error {
+	fmt.Fprintf(w, "%scomment:\n", prefix)
 	r := bufio.NewReader(strings.NewReader(n.body))
-	fmt.Fprintf(w, "%scomment{\n", prefix)
 	for {
 		line, err := r.ReadString('\n')
 		if err == io.EOF {
@@ -136,7 +135,6 @@ func (n *commentNode) pretty(w io.Writer, prefix string) error {
 		}
 		fmt.Fprintf(w, "%s%s%s\n", prefix, indent, line)
 	}
-	fmt.Fprintf(w, "%s}\n", prefix)
 	return nil
 }
 
@@ -178,12 +176,13 @@ func (n *assignmentNode) String() string {
 }
 
 func (n *assignmentNode) pretty(w io.Writer, prefix string) error {
-	fmt.Fprintf(w, "%sassign{\n", prefix)
-	fmt.Fprintf(w, "%s%sname: %s\n", prefix, indent, n.name)
-	if err := n.value.pretty(w, fmt.Sprintf("%s%svalue: ", prefix, indent)); err != nil {
+	fmt.Fprintf(w, "%sassign:\n", prefix)
+	fmt.Fprintf(w, "%s%sname:\n", prefix, indent)
+	fmt.Fprintf(w, "%s%s%s%s\n", prefix, indent, indent, n.name)
+	fmt.Fprintf(w, "%s%svalue:\n", prefix, indent)
+	if err := n.value.pretty(w, prefix+indent+indent); err != nil {
 		return err
 	}
-	fmt.Fprintf(w, "%s}\n", prefix)
 	return nil
 }
 
@@ -211,7 +210,8 @@ func (s *stringNode) parse(p *parser) error {
 }
 
 func (s *stringNode) pretty(w io.Writer, prefix string) error {
-	_, err := fmt.Fprintf(w, "%s%s\n", prefix, string(*s))
+	fmt.Fprintf(w, "%sstring:\n", prefix)
+	_, err := fmt.Fprintf(w, "%s%s%s\n", prefix, indent, string(*s))
 	return err
 }
 
@@ -275,7 +275,7 @@ func (n *numberNode) pretty(w io.Writer, prefix string) error {
 	if err != nil {
 		return err
 	}
-	fmt.Fprintf(w, "%s%v\n", prefix, v)
+	fmt.Fprintf(w, "%snumber:\n%s%s%v\n", prefix, prefix, indent, v)
 	return nil
 }
 
@@ -320,13 +320,12 @@ func (l *listNode) parse(p *parser) error {
 }
 
 func (l *listNode) pretty(w io.Writer, prefix string) error {
-	fmt.Fprintf(w, "%slist{\n", prefix)
+	fmt.Fprintf(w, "%slist:\n", prefix)
 	for _, n := range *l {
 		if err := n.pretty(w, prefix+indent); err != nil {
 			return err
 		}
 	}
-	fmt.Fprintf(w, "%s}\n", prefix)
 	return nil
 }
 

tests/parse/01.out

@@ -1,2 +1 @@
-root{
-}
+root:

tests/parse/02.out

@@ -1,50 +1,73 @@
-root{
-  assign{
-    name: a_string
-    value: a string value
-  }
-  assign{
-    name: an_int
-    value: 1
-  }
-  assign{
-    name: another_int
-    value: 9
-  }
-  assign{
-    name: moar_int
-    value: -12
-  }
-  assign{
-    name: a_float
-    value: 1
-  }
-  assign{
-    name: another_float
-    value: -0.9
-  }
-  assign{
-    name: extra_floaty
-    value: 1.2
-  }
-  assign{
-    name: complex1
-    value: (1+1i)
-  }
-  assign{
-    name: complex2
-    value: (1+0i)
-  }
-  assign{
-    name: complex3
-    value: (1.3+4.7i)
-  }
-  assign{
-    name: complex4
-    value: (-4.2+8.9i)
-  }
-  assign{
-    name: complex5
-    value: (4.2-8.9i)
-  }
-}
+root:
+  assign:
+    name:
+      a_string
+    value:
+      string:
+        a string value
+  assign:
+    name:
+      an_int
+    value:
+      number:
+        1
+  assign:
+    name:
+      another_int
+    value:
+      number:
+        9
+  assign:
+    name:
+      moar_int
+    value:
+      number:
+        -12
+  assign:
+    name:
+      a_float
+    value:
+      number:
+        1
+  assign:
+    name:
+      another_float
+    value:
+      number:
+        -0.9
+  assign:
+    name:
+      extra_floaty
+    value:
+      number:
+        1.2
+  assign:
+    name:
+      complex1
+    value:
+      number:
+        (1+1i)
+  assign:
+    name:
+      complex2
+    value:
+      number:
+        (1+0i)
+  assign:
+    name:
+      complex3
+    value:
+      number:
+        (1.3+4.7i)
+  assign:
+    name:
+      complex4
+    value:
+      number:
+        (-4.2+8.9i)
+  assign:
+    name:
+      complex5
+    value:
+      number:
+        (4.2-8.9i)

tests/parse/03.out

@@ -1,10 +1,12 @@
-root{
-  assign{
-    name: items
-    value: list{
-    value:   1
-    value:   2
-    value:   3
-    value: }
-  }
-}
+root:
+  assign:
+    name:
+      items
+    value:
+      list:
+        number:
+          1
+        number:
+          2
+        number:
+          3