# [texhax] recursive \defs

Philip TAYLOR P.Taylor at rhul.ac.uk
Thu Aug 16 13:18:43 CEST 2012


Neal H. Walfield wrote:

> How do I escape the #1 in bar's definition?  What are good approaches to do this type of thing?

In reverse order :

> What are good approaches to do this type of thing?

Read the TeXbook : you will really enjoy it, and learn a great deal !

> How do I escape the #1 in bar's definition ?

Use ##1, ##2, etc., within \bar if they are local to \bar;
if you want to refer to \foo's parameters, just use #1, #2, etc.
If you nest three levels deep, use ####1, ####2, etc.

Philip Taylor