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+; https://stackoverflow.com/questions/318553/getting-emacs-to-untabify-when-saving-certain-file-types-and-only-those-file-ty
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+
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+(add-hook 'c++-mode-hook
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+ '(lambda ()
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+ (add-hook 'before-save-hook
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+ (lambda ()
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+ (untabify (point-min) (point-max))))))
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+
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+(defun untabify-buffer ()
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+ "Untabify current buffer"
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+ (interactive)
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+ (untabify (point-min) (point-max)))
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+
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+(defun progmodes-hooks ()
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+ "Hooks for programming modes"
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+ (yas/minor-mode-on)
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+ (add-hook 'before-save-hook 'progmodes-write-hooks))
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+
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+(defun progmodes-write-hooks ()
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+ "Hooks which run on file write for programming modes"
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+ (prog1 nil
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+ (set-buffer-file-coding-system 'utf-8-unix)
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+ (untabify-buffer)
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+ (copyright-update)
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+ (maybe-delete-trailing-whitespace)))
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+
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+(defun delete-trailing-whitespacep ()
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+ "Should we delete trailing whitespace when saving this file?"
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+ (save-excursion
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+ (goto-char (point-min))
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+ (ignore-errors (next-line 25))
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+ (let ((pos (point)))
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+ (goto-char (point-min))
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+ (and (re-search-forward (concat "@author +" user-full-name) pos t) t))))
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+
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+(defun maybe-delete-trailing-whitespace ()
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+ "Delete trailing whitespace if I am the author of this file."
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+ (interactive)
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+ (and (delete-trailing-whitespacep) (delete-trailing-whitespace)))
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+
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+(add-hook 'php-mode-hook 'progmodes-hooks)
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+(add-hook 'python-mode-hook 'progmodes-hooks)
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+(add-hook 'js2-mode-hook 'progmodes-hooks)
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