[texhax] \output{...} vs \output={...}

[Peter Seibel]

In some places in the TeXBook (e.g. top of page 364) I see things like

  \output={\plainoutput}

where \plainoutput is a macro defined with \def. Then in Appendex E
(p. 417) I see:

  \output{\onepageout{\unvbox255}}

without an '='. What's the difference?

-Peter

-- 
Peter Seibel
http://www.codersatwork.com/
http://www.gigamonkeys.com/blog/