Hi Mosè, Here is such an example. I would expect auctex to parse this and write a style file to ./auto but, for me, it does not unless I remove the long comment at the start of the file. Best, ---Fran On 12 October 2016 at 00:23, Mosè Giordano wrote: > Hi Fran, > > 2016-10-11 17:42 GMT+02:00 Fran Burstall : > > Greetings, > > > > My LaTeX file starts with a long (59 line) comment > > containing header information. > > > > I noticed that the file was not being parsed and no style > > file written to ./auto or read from there. > > > > If I remove the header and do C-c C-n, parsing occurs as I > > would expect. > > > > If I put the \documentstyle line in line 1 of the file and > > then the header, parsing also fails. > > > > I suspect this must be a regression caused by a recent > > change as I have not noticed this behaviour before. > > Could you please show us minimal (non-)working examples of the > different cases you described? I was not able to reproduce your > problem, but I'm not sure I got what you mean. > > Bye, > Mosè >