Empty address before negation

"[email protected] [sed-users]" <[email protected]>
Newsgroups gmane.editors.sed.user
Message-ID <[email protected]> 
Hi. 

I just discover that an empty address may be negated (GNU sed 4.2). For instance, "!p" is a valid syntax and acts as a nop. Formerly, an instruction should be described as [address][!][function] and not as [address[!]][function] as I thought until now.

I don't see any use for this except as a way to comment a valid instruction. Any idea?

Gilles Arcas


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