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[K@rl]

Hoi,

ggf. ist das noch interessant:
(?=pattern)
A zero-width positive lookahead assertion. For example, /\w+(?=\t)/ matches a word followed by a tab, without including the tab in $&.

(?lt=pattern)
A zero-width positive lookbehind assertion. For example, /(?<=\t)\w+/ matches a word following a tab, without including the tab in $&. Works only for fixed-width lookbehind.

siehe perldoc perlre

K@rl