Just to rub it in, er, belabor the point: the actual syntax is:
(?[modifier]:patter)
where modifier can be one or more of i,m,s or x (like the /i etc
modifiers). Doesn't capture. Then comes:
(?>pattern)
ditto but doesn't allow backtracking (see: Freidl Mastering Regular
Expressions for what that means ;-)
(?=pattern)
zero-width positive look-ahead assertion
(?!pattern)
zero-width nugatory, er, negative look-ahead assertion
(?<=pattern)
zero-width positive look-behind assertion
(?<!pattern)
zero-width neg. look-behind assertion
and as AELFTR (see perldoc perlre):
(?{ code })
(??{ code })
(?(cond) ptrue [ | pfalse] )
(? modifier )
a
Andy Bach, Sys. Mangler
Internet: [EMAIL PROTECTED]
VOICE: (608) 261-5738 FAX 264-5932
This msg may contain forward-looking statements. The words or phrases
"would be," "will allow, " ... [oh shut up!]
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