A question about scanf

[brahms at spp2.UUCP]

[}{]

The 4.1 and 4.2 version of c has several different conversion characters
that are not list and K&R.  The one that I am interested in is the '['
conversion character.  The '[' character defines either the break set, or
the set of legal characters for the string.

Question:	Is this strictly a Berklyism?  What is its history?

Thanx.

			-- Brad brahms
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