还是那句话：
$ [PROXY] emacsq.sh -P yasnippet --eval "
(progn
(defun yas-texmathp () (require 'texmathp) (texmathp))
(with-temp-buffer
(emacs-lisp-mode)
(url-insert-file-contents
\"http://git.savannah.gnu.org/cgit/auctex.git/plain/texmathp.el\")
(eval-buffer))
(switch-to-buffer \"oln.snippet\")
(progn
(url-insert-file-contents
\"https://raw.githubusercontent.com/saf-dmitry/latex-math-input/ac1689f3376ff76e44e5bb6c7959c51b52feeb74/yasnippets/latex-mode/mm-accents/mm-accent-overline\")
(require 'cl-lib)
(cl-letf (((symbol-function 'yas--compute-major-mode-and-parents)
(lambda (_)
'(latex-mode))))
(yas-tryout-snippet)
(whitespace-mode))))
"
