Add JSON formatter

Author: stilvoid

TODO.md

@@ -1,7 +1,5 @@
 # ToDo
 
-* Add JSON formatter
-
 * Write some tests!
 
 * Make indenting optional across all formatters (but not bash I guess)

cmd/parse.go

@@ -98,6 +98,7 @@ func init() {
 	formatters = map[string]Formatter{
 		"bash": formatter.Bash,
 		"dot":  formatter.Dot,
+		"json": formatter.Json,
 		"xml":  formatter.Xml,
 		"yaml": formatter.Yaml,
 	}

formatter/json.go

@@ -0,0 +1,26 @@
+package formatter
+
+import (
+	"fmt"
+	"github.com/nytlabs/mxj"
+	"os"
+)
+
+func Json(in interface{}) (out string) {
+	in_map, ok := in.(map[string]interface{})
+
+	if !ok {
+		return fmt.Sprintf("\"%s\"", in)
+	}
+
+	m := mxj.Map(in_map)
+
+	bytes, err := m.JsonIndent("", "  ")
+
+	if err != nil {
+		fmt.Println("Error generating JSON:", err)
+		os.Exit(1)
+	}
+
+	return string(bytes)
+}