ASCII art in Texinfo?

I've been accumulating notes on the Lucid widget library, and thought I'd put some of them into Texinfo format. There being complex and interlocking graphs all over the place, I think some figures of widget hierarchies and the like would useful. Is there a standard for doing this in Texinfo? ASCII art in ＠example environments would be the easiest way to go, I guess? In XEmacs, we ought to be able to embed PNGs in Info docs, dammit! -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 _________________ _________________ _________________ _________________ What are those straight lines for? "XEmacs rules."