# [luatex] Hash tokens meaning

luigi scarso luigi.scarso at gmail.com
Mon May 27 16:40:06 CEST 2013

On Mon, May 27, 2013 at 3:06 PM, Sensei <senseiwa at gmail.com> wrote:

> Dear all,
>
> I am trying to grasp the meaning of the hash tokens I find in a latex
> document. I am a novice TeX user, so please bear with my (almost surely)
> stupid questions: I've only used LaTeX, and never looked into the pit :)
>
>
> - First of all, I find many tokens that contain @ or ! or ^, for example
> "tagsleft at false", "ps at headings", "\T1\^-\i", or "!!stringa": do these
> characters have a special meaning?
>
>
> - Why do I have so many "blank" tokens? At the end of this you'll find a
> sample from a dump file viewed from emacs, so an encoding of special
> characters is visible.
>
>
> -Are tokens as "<5><6><7><8><9>gen*cmbx<10><**
> 10.95>cmbx10<12><14.4><17.28><**20.74><24.88>cmbx12" real, or is it some
> kind of "encoding" that I see?
>
>
> - Are these tokens portable? I mean, a friend of mine on windows will
> produce the very same tokens with the same document?
>
>
> - All \label{something} seem to be processed as token "r at something". Is
> this real, or just my imagination?
>
>
>
> Again, I am sorry to ask such trivial questions, but I didn't find
> anything anywhere on the internals of TeX!
>
>
> Thanks & Cheers!
>
>
>
> ===BEGIN===
> luatexattributedef
> sffamily
> ^A
> tracingoutput
>
> ^H
> ^K
> macc at palette
> ^M
> ^L
> ^N
> @currdir
> makesm at sh
> pdftrue
> ?\textless
> ====END====
>

I have to admit that I don't uderstand which files are you reading...

For the characters @ ^ etc you should search for \makeatletter just start
to understand the catcodes
but for the text between BEGIN/END ..what is it ? A   lualatex / luatex fmt
file ?
If it's a luatex format file (I guess, after all this is  the luatex ml)
About portability of the format, well yes and no. See
3.5.2.3 Hardware and memory dumps
at
http://www.tug.org/texinfohtml/web2c.html#Memory-dumps

--
luigi
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/luatex/attachments/20130527/4192059b/attachment.html>