I am trying to read a file and capture particular lines into different strings: 
LENGTH: Some Content here

TEXT: Some Content Here

COMMENT: Some Content Here

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I want to be able to get (LENGTH: .... ) into one array and so on... I'm trying to use PERL in slurp mode but for some reason I'm having trouble. I solved the problem using "read the file line by line" technique but I want to use the slurp mode to solve it because the input is something like this: 
LENGTH: ......................................................
..................................................................
..................................................................

...................................................................
..................................................................

SUBJECT: .......................................................

COMMENT: .....................................................
....................................................................

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As you can observe, the data that I want is not limited to one line but rather spans multiple lines so thought using a regex over multiple lines would be better. Do you have any suggestion on how to solve this problem?

In reply to I need to regex multiple lines by legend

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