RFC: Add decorative elements in the sidebar to distinguish between directory, functions, and classes

[luochen1990]

If there is a function a_b_c, currently it is displayed in the sidebar as "a b c", I can understand the purpose of this design, which is to make everything look more like a page rather than a debugging interface.

But I think people may have different scenarios for using Funix,

One scenario is that people write some functions and then casually use funix to provide a visual interface without wanting to do any additional work, including fine-tuning its style.
2. Another scenario is that people specifically write functions decorated with @funix for the purpose of using them as user interfaces, even if these functions may not necessarily have any significant practical functionality.

In the first case, I would focus more on the correspondence between the interface and the code, that is, knowing which part of the interface corresponds to where in the code. At such times, I actually hope for a more distinct differentiation between directories, functions, and classes.

In the second scenario, users can fully control more behaviors of the widgets using parameters within the @funix decorator, including subtle adjustments to the style.

Therefore, considering all aspects, I believe it would be a good idea to add a category-distinguishing icon (or simply some additional characters) to all elements by default.

Candidate Solution One:

Add an icon before the names of directories, functions, and classes;

Candidate Solution 2:

Add a / symbol after the directory name, i.e., directory a will be displayed as a/, add () brackets after the function, i.e., function f will be displayed as f(), and classes will be displayed directly by their names.

[forrestbao]

@luochen1990 sorry for the late reply. Both suggestions from you are good and we use a combination of them.
@Yazawazi can you implement this? We use icons to indicate the level of a hierarchy and add a slash or a pair of brackets behind the name of a directory or function. For class, I don't have a good syntax indicator, maybe ↴ ?

[Yazawazi]

Sorry, I've been a bit busy lately, but this is done. But I've only implemented Solution 1, and you can preview this change using the dev branch.

The use of Solution 1 alongside Solution 2 may need further discussion, and because of the icons, displaying something like () or / at the end may not be much of a visual improvement or cause fatigue.

Indeed, Funix's modification of a_b_c to a b c is destructive behavior, but we provide a Switch Option:

from funix.config.switch import GlobalSwitchOption

GlobalSwitchOption.AUTO_CONVERT_UNDERSCORE_TO_SPACE_IN_NAME = False

The above code will turn off Funix's automatic underscore conversion.

[forrestbao]

Thanks @Yazawazi
@luochen1990 How do you like about the new change?