[texhax] Knuth's rules for the indefinite article

William F. Adams wadams at atlis.com
Mon May 3 21:48:51 CEST 2004

On Thursday, April 29, 2004, at 01:30  PM, Plamen Tanovski wrote:

> looking in texbook.tex I've noticed that Knuth uses sometimes
> nonbreakable space after the indefinite article, e.g. "once in
> a~while" or a~|$| or if the next word is the last in a sentence. My
> question is: is there any precise description of this rules?

I suspect that if you removed the non-breaking spaces you'd find that 
its addition forces a nicer set of linebreaks for a paragraph --- 
certainly that last would seem to indicate it, esp. if you meant 


William Adams, publishing specialist
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