Added toUpper and toLower formatting to templates

template/template.go

@@ -150,6 +150,8 @@ func NewTemplateExpander(text string, name string, data interface{}, timestamp m
 			},
 			"match":     regexp.MatchString,
 			"title":     strings.Title,
+			"toUpper":   strings.ToUpper,
+			"toLower":   strings.ToLower,
 			"graphLink": strutil.GraphLinkForExpression,
 			"tableLink": strutil.TableLinkForExpression,
 			"sortByLabel": func(label string, v queryResult) queryResult {

template/template_test.go

@@ -164,6 +164,16 @@ func TestTemplateExpansion(t *testing.T) {
 			text:   "{{ \"aa bb CC\" | title }}",
 			output: "Aa Bb CC",
 		},
+		{
+			// toUpper.
+			text:   "{{ \"aa bb CC\" | toUpper }}",
+			output: "AA BB CC",
+		},
+		{
+			// toLower.
+			text:   "{{ \"aA bB CC\" | toLower }}",
+			output: "aa bb cc",
+		},
 		{
 			// Match.
 			text:   "{{ match \"a+\" \"aa\" }} {{ match \"a+\" \"b\" }}",