[texhax] .cls and .sty files

[Robin Fairbairns]

> Throught this e-mail i would like to ask how can i get information about
> how to write LaTeX classes files.
> I look for a tutorial that teach to write .cls and .sty advanced files.

there is no tutorial information for the whole process.

i summarise most of what's available in

http://www.tex.ac.uk/cgi-bin/texfaq2html?label=writecls

and it's also useful to look at

http://www.tex.ac.uk/cgi-bin/texfaq2html?label=dtx

(i don't actually agree with some of the hints offered in the
reference in that answer.)