2

We can specify modes :

(c-mode . ((c-file-style . "BSD")
            (subdirs . nil)))

Or directories :

("src/imported"
       . ((nil . ((change-log-default-name . "ChangeLog.local")))))

Is there a way to specify a regexp matching files (or even directories) ? i.e:

(".*_test.go" . . ((nil . ((change-log-default-name . "ChangeLog.local")))))
2
  • 3
    Maybe consider filing an Emacs enhancement request: M-x report-emacs-bug.
    – Drew
    Jan 17 '20 at 16:58
  • 1
    Not quite a duplicate, but cross-referencing with emacs.stackexchange.com/q/62136/454
    – phils
    Dec 6 '20 at 9:27
1

The capabilities are documented at C-hig (emacs)Directory Variables

What you've asked for isn't supported; so no, you can't have regexps matching files or directories.

0

Is there any reason you can't simply do the regexp yourself in a .dir-locals assignment? eg just pasted from another exercise the assignment of fname could be based on a regexp matching the buffer-file-name

((nil . ((eval . (progn
                   (setq boilerplate (with-temp-buffer
                                        (insert-file-contents ".boilerplate")
                                        (buffer-string)))
                   (setq fname (buffer-file-name)) ; <--- do something with a regexp here to match the filename for type eg *.c etc.
                   )))))
1
  • Be careful using setq (as opposed to setq-local) in a dir-local eval form. If the variable in question isn't buffer-local then you're setting its global value.
    – phils
    Feb 17 '20 at 0:38

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