latex mode

[thegaryking]

i have a file with .tex extension that, in case it is relevant, begins with the line:
\subsection*{}

when I load this in emacs, it doesn't recognize it as latex and doesn't turn on latex-mode. Shouldn't it turn on latex-mode for any .tex file? Can we put that in effect?

thanks

[izahn]

It will probably not surprise you to learn that I cannot reproduce this problem. If you think there is something about the particular file that causes problems please attach it here.

One possibility is that there is a space at the end of the file name. Could that possibly be the issue?

[thegaryking]

here you go Gary -- *Gary King* - Albert J. Weatherhead III University Professor - Director, IQSS <http://iq.harvard.edu/> - Harvard University GaryKing.org - King@Harvard.edu - @KingGary <https://twitter.com/kinggary> - 617-500-7570 - Assistant <king-assist@iq.harvard.edu>: 617-495-9271

…

On Tue, Jan 2, 2018 at 2:41 PM, Ista Zahn ***@***.***> wrote: It will probably not surprise you to learn that I cannot reproduce this problem. If you think there is something about the particular file that causes problems please attach it here. One possibility is that there is a space at the end of the file name. For example, if the file is named article_draft.tex Emacs will not recognize it since it does not end with tex. Could that possibly be the issue? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#7 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAjG_icgEUvJ7VGtBnz9vXcO71e85Vfdks5tGoZWgaJpZM4RP8Ht> .

[izahn]

Incomplete file local variables cause Emacs to quit trying to determine what mode to open a file in. For example, in this case the file contained

% Local Variables:
% TeX-engine: default
% TeX-master: 
% End:

Changing it to

% Local Variables:
% TeX-engine: default
% TeX-master: nil 
% End:

solved the problem.