[graphviz-interest] A question about formatting DOT files

Hi All

I wish to discuss the possibility of reformatting DOT files without any 
change in how dot interprets them.

I ask because I'm writing a parser for DOT files, and that substitution 
would definitely make parsing easier, since it would allow the author of 
the file to format however they liked (esp. HTML), and yet simplify the 
parser at the same time.

Since there is an escape sequence - \n - for output newlines, let's 
ignore the character sequence '\n'.

Also, for the moment I'd like to ignore this statement from the docs 
(http://www.graphviz.org/content/dot-language):

"As another aid for readability, dot allows double-quoted strings to 
span multiple physical lines using the standard C convention of a 
backslash immediately preceding a newline character2. In addition, 
double-quoted strings can be concatenated using a '+' operator. As HTML 
strings can contain newline characters, which are used solely for 
formatting, the language does not allow escaped newlines or 
concatenation operators to be used within them."

In fact, that statement may well not restrict the code I'm writing.

So, finally, the question is: Are there any (other) cases where 
replacing all (non-escaped) newlines with a single space would change 
dot's interpretation?

-- 
Ron Savage - savage.net.au
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