absolute line number if preceded by a ":", or relative to the
declaration line of the function if preceded by a "+".
All the lines in the function can be matched with ":*".
-A range of lines x through y can be matched with ":x\-y".
+A range of lines x through y can be matched with ":x\-y". Ranges and
+specific lines can be mixed using commas, e.g. ":x,y\-z".
.PP
As an alternative, PATTERN may be a numeric constant, indicating an
address. Such an address may be found from symbol tables of the