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bug#48075: LaTeX-fill-paragraph and Comments with Long Equations

 From: Mitchell Riley Subject: bug#48075: LaTeX-fill-paragraph and Comments with Long Equations Date: Wed, 28 Apr 2021 12:33:43 +1000

Dear AUCTeX developers,

I am encountering an infinite loop when trying to fill buffers that contain long commented out equations. The specific equation doesn't seem to matter, for example, trying to fill a buffer with only the line
% $++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++$
or the line
% $\times \times \times \times \times \times \times \times \times \times \times$
will cause Emacs to hang. Interrupting the filling with C-g shows that thousands of empty comment lines are being added to the buffer. Filling succeeds if the \$s are removed, so there must be something specific to equations going on.

I'm afraid I have no experience reading elisp code, so I don't have much chance of figuring out the issue myself, sorry...

Mitchell