Seems to me this would be quite easy to implement reading a line at a time. Just keep a flag indicating whether you should be indenting or not. 

while (<>) {
   if    ( /^Heading Here:/    ) { $_ = "\n" . $_; $indent = 1; }
   elsif ( /^Another Heading:/ ) { $indent = 1; }
   elsif ( /^End of section:/  ) { $indent = 0; }
   elsif ( $indent             ) { $_ = "  " . $_; }

   print;
}

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In reply to Re: Regexp help by ikegami
in thread Regexp help by thewebsi

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