nix-drv-mode.el: make regexp more selective #127
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latex.el adds '("\\.drv\\'" . latex-mode) to auto-mode-alist, so we
prefer to use something else.
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In the Auctex package, latex.el adds '("\.drv\'" . latex-mode) to auto-mode-alist, so we
prefer to use some other regexp to avoid opening Nix derivations in the wrong mode.
I made the following patch to Auctex upstream just now:
This way, the Nix-derivation regexp always gets checked first. I'm not aware of a quick way of mimicking a lookahead assertion in the Auctex regexp, but that would probably be preferable to what I did.