Well, it's not quite that easy. Foods that have been processed with added sugars generally aren't as healthy a choice, it's true. But simple carbs occur naturally in some foods that are part of a balanced diet. For example, most milk and other dairy products contain lactose, or milk sugar.
Sometimes a codeline or branch is primarily intended for a single person to perform a single task or series of tasks. In these cases it is common the prevent all users other than the codeline owner from checking-out (and in) files from the codeline.
For semiotics, a code is the framework, a learned a shared conceptual connection at work in all uses of signs (language, visual). An easy example is seeing the kinds and levels of language use in anyone's language group. English is a convenient fiction for all the kinds of actual versions of the language.