break label stuff

[geoffrey dov cooper]

	if we really are (which i doubt) going to go with
break/continue <identifier> then perhaps we should provide some
isolation so that it is distinguishable from a goto label. maybe

<identifier>:: <control structure>
			break <identifier>;

the double colon would show that this is a control structure label and
not a goto label thus eliminating some of my objections to the
structure.

                          shades at mit-oz.arpa
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