[AUCTeX-devel] Newbie trying to understand the parser.

[Bernard Hurley]

Hi all,

I'm trying to understand how the parser works as  I would like to write
some style files for TikZ. I hope you don't mind if I ask some possibly
stupid questions, but I haven't seem them answered anywhere.

The first question is this: The code in "Hacking the Parser" in the info
file contains:

     (defvar TeX-newmacro-regexp
       '("\\\\newmacro{\\\\\\([a-zA-Z]+\\)}{\\\\\\([a-zA-Z]+\\)}"
         (1 2) TeX-auto-multi)
       "Matches \newmacro definitions.")

What is the purpose of the list (1 2) and what is the significance of
the numbers?


For the second question, the following file (01-Hagen-Petri-net.ly) was
automatically generated in my auto subdirectory:

  (TeX-add-style-hook "01-Hagen-Petri-net"
   (lambda ()
      (TeX-run-style-hooks
       "tikz"
       ""
       "latex2e"
       "art10"
       "article"
       "a4paper")))

Why does it contain an empty string?  What is the purpose of it?

Regards,

Bernard.