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Editorial Team
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Asked: 2026-05-20T20:20:23+00:00

Given this: Come Find me please. This is paragraph one.\n\nThis is paragraph two. Capture

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Given this:

Come Find me please. This is paragraph one.\n\nThis is paragraph two. 
Capture everything before me as this is the last sentence.\n\n\n\n
From: XXX XXX <xxxxx@gmail.com>\nDate: Mon, 17 May 2010 10:59:40 -0700\n
To: \"xxx, xxx\" <xxxxx@intuit.com>\nSubject: Re: XXXXXXXX\n\ndone

Lots of other junk here

What I want back is: 

Come Find me please. This is paragraph one.\n\nThis is paragraph two. 
Capture everything before me as this is the last sentence.

I’m using the following regex which works fine on rubular but fails in rails. Ideas why? 

split(/(From:.*Date.*To:.*Subject:.*?)\n/m).first

Thank you!

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1 Answer

  1. Editorial Team

    Your code works as far as I tested, except that it is trailed with some "\n". If you want to remove them, add \n* to the beginning. I am not sure why you have the parentheses, and the last ? and \n. I took them off.

    your_string.split(/\n*From:.*Date.*To:.*Subject:.*/m).first

    Maybe using sub is more natural.

    your_string.sub(/\n*From:.*Date.*To:.*Subject:.*/m, '')

    You can also do this:

     your_string[/.*?(?=\n*From:.*Date.*To:.*Subject:.*)/m]
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