0

Assuming I customized my default C indentation settings through M-x customize-variable c-offsets-alist:

(custom-set-variables
 '(c-offsets-alist
   (quote
    ((statement-case-open . 0)
     (substatement-open . 0)
     (case-label . +)
     (access-label . -)
     (label . 0)
     (arglist-intro . +)
     (arglist-cont . 0)
     (arglist-cont-nonempty . +)
     (arglist-close . 0)))))

When I want to edit a project using a specific indentation file, there is (or I can create) a .dir-locals.el indicating it:

((c-mode . ((c-file-style . "GNU"))))

However, the c-offsets-alist from my configuration still override the c-file-style defaults.

I've tried setting c-file-offsets and c-offsets-alist in .dir-locals, but it didn't work; setting c-file-offsets to nil had no effect, and setting c-offsets-alist to nil completely disables indentation.

Is it possible to disable c-offsets-alist from having an effect when c-file-style is non-nil?

2

Instead of modifying c-offsets-alist, you can modify c-file-offsets whose purpose is to set offsets via file local variables.

A small example for a .dir-locals.el file:

((nil . ((fill-column . 80)))
  (c-mode . ((c-file-style . "GNU")
             (c-file-offsets
              (brace-list-intro . +)))))

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