So I suggest something like: magic-mode-alist doesn't take precedence over
auto-mode-alist. Instead, we look them up both, and if there's a conflict,
we lookup a new var `mode-precedence-alist' to see if the user prefers one
over the other. If that doesn't resolve the conflict, check
`derived-mode-p'. If the conflict is still not resolved, prompt the user.
If this really works, it would be a great solution.
Could you find the messages where we discussed this issue
before installing magic-mode-alist, and see the specific
cases that were being considered? Then you could see
if this solution would do the right thing in those cases.
Jason Rumney wrote:
Rather than introduce yet another user variable for setting the mode
automagically, why don't we get rid of magic-mode-alist and build that
functionality into auto-mode-alist instead.
People tend to add new elements to the front of auto-mode-alist,
because that is the easiest thing to do. If we were to do this,
adding a new element to the front would tend to override
magic-mode-alist, and that isn't usually the right thing,
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