feat: escaped flags support

Author: u-yas

env/value.go

@@ -0,0 +1,23 @@
+package env
+
+import (
+	"bytes"
+	"fmt"
+)
+
+func EscapeSpecialChars(value string) string {
+	var buf bytes.Buffer
+	for _, r := range value {
+		switch r {
+		case '\n':
+			buf.WriteString("\\n")
+		case '\r':
+			buf.WriteString("\\r")
+		case '\t':
+			buf.WriteString("\\t")
+		default:
+			buf.WriteRune(r)
+		}
+	}
+	return fmt.Sprintf("\"%s\"", buf.String())
+}