Backquote

[Herbert Euler]

Hello,

To understand how ` works, I read lisp/emacs-lisp/backquote.el.
And I found:

   ;; When the Lisp reader sees `(...), it generates (\` (...)).
   ;; When it sees ,... inside such a backquote form, it generates (\, 
...).
   ;; For ,@... it generates (\,@ ...).

Do all Lisp readers have this feature?  And is behavior of backquote
in GNU Emacs simillar to other Lisp implementations, especially for
nested backquotes?

Thanks in advance.

Regards,
Guanpeng Xu

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