[tex-eplain] (was optional arguments)

[Helmut Jarausch]

On 26 Feb, Karl Berry wrote:
>     Would anybody please be so kind to recommend some reading on that
> 
> TeX by Topic - http://www.eijkhout.net/tbt/
> 
> Although I think Victor's book is the best guide for in-depth hacking,
> you might also find TeX for the Impatient worth looking at -
> http://www.ctan.org/tex-archive/info/impatient/
> 
> There are pdf's and sources available online (under the GFDL) for both
> books.  If you want a nicely bound version, they're probably available
> second-hand.  Both are long out of print.
> 

Many thanks, actually I have both of them.
I was hoping for something similar to the article by Amy Hendrickson
"Getting TeXnical : Insights into TeX Macro Writing Techniques"
TUGboat 11(1990), No 3

Helmut.

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany