I can not understant a paragraph in Emacs Lisp Reference.

[waterloo <waterloo2005@gmail.com>]

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As a `\' is not special inside a character alternative, it can never
remove the special meaning of `-' or `]'.  So you should not quote
these characters when they have no special meaning either.  This would
not clarify anything, since backslashes can legitimately precede these
characters where they _have_ special meaning, as in `[^\]' (`"[^\\]"'
for Lisp string syntax), which matches any single character except a
backslash.

`[^\]'  or `"[^\\]"' , which is right ? what is Lisp string syntax for ?

thanks

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