High-level base documentation is complete.

Examples and every model completed, 1/6th of the way through models.

datamodel/high/base/xml_test.go

@@ -0,0 +1,36 @@
+// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+    "fmt"
+    lowmodel "github.com/pb33f/libopenapi/datamodel/low"
+    lowbase "github.com/pb33f/libopenapi/datamodel/low/base"
+    "gopkg.in/yaml.v3"
+)
+
+func ExampleNewXML() {
+
+    // create an example schema object
+    // this can be either JSON or YAML.
+    yml := `
+namespace: https://pb33f.io/schema
+prefix: sample`
+
+    // unmarshal raw bytes
+    var node yaml.Node
+    _ = yaml.Unmarshal([]byte(yml), &node)
+
+    // build out the low-level model
+    var lowXML lowbase.XML
+    _ = lowmodel.BuildModel(&node, &lowXML)
+    _ = lowXML.Build(node.Content[0], nil)
+
+    // build the high level tag
+    highXML := NewXML(&lowXML)
+
+    // print out the XML namespace
+    fmt.Print(highXML.Namespace)
+    // Output: https://pb33f.io/schema
+}