query-replace-regexp ... "Invalid repacement string '\.'"

[s. keeling]

Hi.  I was trying to make it easy on myself using q-r-r replacing
'[^\]\.' (not a backslash, followed by a literal dot/period) with the
string (sans quotes) '\.', essentially "escaping" every dot/period in
the file.  "M-x query-replace" had no trouble with it but M-x
query-replace-regexp refused, spouting the error message in the
subject.

So how do you replace '.' with '\.' in emacs?  Googling's
(groups.google.com) turned up nothing useful (interesting, but not
useful).  I tried variations of '\\\.' (literal backslash followed by
literal period) to no effect.

Suggestions or pointers welcome.  Thanks.


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