all related to extension strategy renamed to reference it

internal/code-generator/generator/langinfo.go

@@ -0,0 +1,20 @@
+package generator
+
+import "sort"
+
+type languageInfo struct {
+	Type         string   `yaml:"type,omitempty"`
+	Extensions   []string `yaml:"extensions,omitempty,flow"`
+	Interpreters []string `yaml:"interpreters,omitempty,flow"`
+	Filenames    []string `yaml:"filenames,omitempty,flow"`
+}
+
+func getAlphabeticalOrderedKeys(languages map[string]*languageInfo) []string {
+	keyList := make([]string, 0)
+	for lang := range languages {
+		keyList = append(keyList, lang)
+	}
+
+	sort.Strings(keyList)
+	return keyList
+}