Hi (David?),

I am trying to learn a bit more of TeX and LaTeX, and I am
wondering if it is possible to get the plain TeX primitives
highlighted differently (different color) than the LaTeX ones?

For example, seeing that `\em' is a TeX command, and that
`\textem' a LaTeX one helps differentiating the two layers, and
understanding more of its internals.

Best regards,
Seb

Sébastien Vauban spammotel.com> writes:

Hmmm...AUCTeX does this for me already. Are you using AUCTeX? You
should ;)

Joel

Hi Joel,

I am using AUCTeX (how could I do without it? ;-)), but it does
not (really) work for me, as you can check with:

--8<---------------cut here---------------start------------->8---
\textem{example} %% `font-latex-sedate-face'
\em{example} %% `font-latex-italic-face' on `font-latex-sedate-face'
--8<---------------cut here---------------end--------------->8---

The only difference is the italic applied on the same face...

Am 17.06.2008 um 11:10 schrieb Sébastien Vauban:

Because \textem{} is neither LaTeX nor TeX but something you might
have invented. I can't find it my LaTeX Companion, second edition,
from January 2005 ...

The is not much sense in distinguishing between so-called "TeX" and
so-called "LaTeX." LaTeX understands TeX quite well. Do you change
your voice or do something else while speaking and using a word that
has its origin in Latin or one that has Celtic or Scandinavian
ancestors or one that has been taken over from English or German?

I think it's possible to work through all available TeX sources on
CTAN and determine the few thousand code words that they get
fontified differently then obvious LaTeX code words.

Hi Peter,

--8<---------------cut here---------------start------------->8---
\textem{example} %% `font-latex-sedate-face'
\em{example} %% `font-latex-italic-face' on `font-latex-sedate-face'
--8<---------------cut here---------------end--------------->8---

Weird. Searching on Google for `textem latex' results in
4,930 results, whose two of them are the following:

Sébastien Vauban wrote:

but sometimes things change in latex.

that document is twelve years old.

Hi Joost,

Sébastien Vauban wrote:

actually, that one's only four years old, my mistake. (or the author's,
because i was already using latex in 2004 and i don't think \textem still
existed then...)

the reason for the namechange (\textem --> \emph) probably lies in the fact
that this command toggles between italic and upright shapes, while the
other \textxx commands choose a shape/weight unconditionally.

Am 17.06.2008 um 14:21 schrieb Joost Kremers:

Right. I am pretty sure I never use TeX in a LaTeX document to be
compiled into PDF – why should I, what could I get? The use of TeX
primitives sometimes cannot be avoided in CLS (or STY) files. And
those who are able to do the latter don't need reminders.

The LaTeX Companion is a good orientation for LaTeX users.

--
Greetings

2008/6/16 Sébastien Vauban spammotel.com>:

To be a nitpicker: actually, `\em' is also a LaTeX command and not a
plain TeX command. ;)

Kind regards,
Marcel (plain TeX user)