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Tom Spilman wrote:
"little chance of them appearing in normal code"?
What about content of strings, or nested comments?

  Well face it... No matter what is suggested it can appear in a string.
*Nothing* will work 100% of the time.  -# This is simple and will work in
most cases. #-  At worst it has the same failings as C/C++ comments... I say
that's just fine.

That's why HereDoc strings (and the Lua star variant) where invented: they provide a consistent infinity of styles that adapt to any enclosed content. Choosing a fixed comment/string style would provide no solution to the problem, how rare the ending combination could occurs.

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Philippe Lhoste (Paris -- France)
Professional programmer and amateur artist
http://Phi.Lho.free.fr
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