regex module, or don't work as expected

[Fabian Holler]

Howdy,


i have the following regex "iface lo[\w\t\n\s]+(?=(iface)|$)"

If "iface" don't follow after the regex "iface lo[\w\t\n\s]" the rest of
the text should be selected.
But ?=(iface) is ignored, it is always the whole texte selected.
What is wrong?


many thanks

greetings

Fabian