Question

Could someone tell me how to parse this string

From: Dela([e-mail])
To: Roger([e-mail])
Date: Monday,
Oct 11 Subject: about emma

and store it into a hash like:

{:from=> "Dela([e-mail])", :to=>"Roger([e-mail])", :date=>"Monday, Oct 11", :subject=>"about emma"}

Answer 1

str = “From: Dela([e-mail]) To: Roger([e-mail]) Date: Monday, Oct 11 Subject: about emma”

Hash[str.scan(/([a-zA-Z]+):\s+(.*?)(?=\z|[a-zA-Z]+:)/).map{|k, v| [k.downcase.to_sym, v]}]