[Bug-AUCTeX] wrong warning for \citeauthor

[Christian Knüpfer]

Hi,

Using \citeauthor (bibtex-dialect="biblatex") I got a warning from
AUCTEX (font-latex-warning-face) if there is only one argument. I think
this is wrong (cf. definition of \citeauthor in
http://mirrors.ctan.org/macros/latex/contrib/biblatex/doc/biblatex.pdf)!
The error is in

https://github.com/jwiegley/auctex/blob/9e7406cddd87c1f318d943bd3f5edc73d82e349d/font-latex.el

line 307 is:

("Autocite" "*[{{") ("citeauthor" "[{{") ("Citeauthor" "[{{")
("citetitle" "*[{{")

and should be:

("Autocite" "*[{{") ("citeauthor" "[[{") ("Citeauthor" "[[{")
("citetitle" "*[{{")

(two optional arguments instead of one for \citeauthor and \Citeauthor).


Best regards,

Christian.

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Christian Knuepfer
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