[drupal-devel] Why is there no designation between hooks and private functions in a module?

[Kristjan Jansen]

many modules in Drupal tend to name their private functions (eg non-hooks) as

function _mymodule_functionname()

Maybe enforce such a convention? 

This does not need that huge patches inside core (but there are still
many direct non-hook function calls from module to module)

kristjan