Hi everyone

Amidst all the excitement for the new v.9.6, I hope there is time for
my grep Q:

I am trying to make a grep search string which finds any HTML comment
that has a double hyphen inside itself.

It should find any HTML comment which:
- starts with "<!--",
- ends with "-->",
- spans any number of lines,
- contains two consecutive hyphen chars which are not part of the
opening "<!--" or closing "-->".

It should NOT match across multiple HTML comments.

The find string must preserve anything it finds inside the HTML
comment which is not the double hyphen.. so that I can replace in a
way to just effectively strip out the double hyphen.

I have been successful to create a grep for each of these criteria
separately, and also some greps which  include several of the
criteria.. but so far I have not been able to come up with one which
meets all my criteria.

After making sincere effort, it will be very rewarding to see how one
of you grep wizards does it.

Thanks for any reply!
-Govinda

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