Atomized the functionality of the base tomo package

data/data.go

@@ -0,0 +1,20 @@
+package data
+
+import "io"
+
+// Data represents arbitrary polymorphic data that can be used for data transfer
+// between applications.
+type Data map[Mime] io.ReadCloser
+
+// Mime represents a MIME type.
+type Mime struct {
+	// Type is the first half of the MIME type, and Subtype is the second
+	// half. The separating slash is not included in either. For example,
+	// text/html becomes:
+	// Mime { Type: "text", Subtype: "html" }
+	Type, Subtype string
+}
+
+var MimePlain = Mime { "text", "plain" }
+
+var MimeFile = Mime { "text", "uri-list" }