[graphviz-interest] Seeking document clarification

Hi All

Under http://www.graphviz.org/content/dot-language we have this para:

"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."

But what is 'a named subgraph with no body'?

The BNF says:

subgraph	:	[ subgraph [ ID ] ] '{' stmt_list '}'

which I read as saying the '{' and '}' are mandatory.

This suggests it's impossible to have a body-less subgraph. Is that correct?

-- 
Ron Savage - savage.net.au
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