Tool can now print its intermediate state

tools/exp/main.go

@@ -47,9 +47,9 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	_, err = rdf.ParseVocabulary(registry, inputJSON)
+	p, err := rdf.ParseVocabulary(registry, inputJSON)
 	if err != nil {
 		panic(err)
 	}
-	fmt.Printf("done\n")
+	fmt.Printf("done\n%s\n", p)
 }

tools/exp/rdf/data.go

@@ -1,6 +1,7 @@
 package rdf
 
 import (
+	"bytes"
 	"fmt"
 	"net/url"
 )
@@ -18,6 +19,15 @@ type ParsedVocabulary struct {
 	References map[string]Vocabulary
 }
 
+func (p ParsedVocabulary) String() string {
+	var b bytes.Buffer
+	b.WriteString(fmt.Sprintf("Vocab:\n%s", p.Vocab))
+	for k, v := range p.References {
+		b.WriteString(fmt.Sprintf("Reference %s:\n\t%s\n", k, v))
+	}
+	return b.String()
+}
+
 // Vocabulary contains the type, property, and value definitions for a single
 // ActivityStreams or extension vocabulary.
 type Vocabulary struct {
@@ -26,6 +36,20 @@ type Vocabulary struct {
 	Values     map[string]VocabularyValue
 }
 
+func (v Vocabulary) String() string {
+	var b bytes.Buffer
+	for k, v := range v.Types {
+		b.WriteString(fmt.Sprintf("Type %s:\n\t%s\n", k, v))
+	}
+	for k, v := range v.Properties {
+		b.WriteString(fmt.Sprintf("Property %s:\n\t%s\n", k, v))
+	}
+	for k, v := range v.Values {
+		b.WriteString(fmt.Sprintf("Value %s:\n\t%s\n", k, v))
+	}
+	return b.String()
+}
+
 func (v *Vocabulary) SetType(name string, a *VocabularyType) error {
 	if v.Types == nil {
 		v.Types = make(map[string]VocabularyType, 1)
@@ -67,6 +91,10 @@ type VocabularyValue struct {
 	Zero           string
 }
 
+func (v VocabularyValue) String() string {
+	return fmt.Sprintf("Value=%s,%s,%s,%s", v.Name, v.URI, v.DefinitionType, v.Zero)
+}
+
 func (v *VocabularyValue) SetName(s string) {
 	v.Name = s
 }
@@ -99,6 +127,10 @@ type VocabularyType struct {
 	Examples          []VocabularyExample
 }
 
+func (v VocabularyType) String() string {
+	return fmt.Sprintf("Type=%s,%s,%s", v.Name, v.URI, v.Notes)
+}
+
 func (v *VocabularyType) SetName(s string) {
 	v.Name = s
 }
@@ -144,6 +176,10 @@ type VocabularyProperty struct {
 	NaturalLanguageMap bool
 }
 
+func (v VocabularyProperty) String() string {
+	return fmt.Sprintf("Property=%s,%s,%s,%s,%s", v.Name, v.URI, v.Notes, v.Functional, v.NaturalLanguageMap)
+}
+
 func (v *VocabularyProperty) SetName(s string) {
 	v.Name = s
 }