The easiest way would be to use two passes. The first adds a blank line before each header: 

perl -ple"$_ = qq[\n] . $_ if /^*header/" infile >modified

[download]

NB! Different quotes on *nix!

The second pass is just which ever of the earlier answers you like best.

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.

In reply to Re: Re: multi-line match by BrowserUk
in thread multi-line match by pdotcdot

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