Re: [graphviz-interest] Seeking document clarification

> "Semicolons aid readability but are not required except in the rare case that a named subgraph 
> with no body immediately preceeds an anonymous subgraph, since the precedence rules cause this 
> sequence to be parsed as a subgraph with a heading and a body. Also, any amount of whitespace may 
> be inserted between terminals."
That paragraph is out of date. At one point, having a subgraph reference without a body was legal. 
However, it turned out this allowed one to create cycles in the
graph of subgraphs, which causes serious problems. Fixing this would have been complicated and not 
worth the small gain provided by the more general syntax. So,
as of 2007, this syntax was deprecated, and totally removed when we moved to the cgraph library with 
2.30.

Thanks for catching this. I will fix the documentation.

      Emden

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