Rails - Nov 2010 - Parsing an Email Message for just the reply, not the old thread?

Hello, I set my app to receive incoming emails via a post from a
service. The controller that receives the posts looks a little like
this:



        class IncomingMailsController < ApplicationController
          require ''mail''
          skip_before_filter :verify_authenticity_token

          def create
            message = Mail.new(params[:message])
            message_plain = (params[:plain])
            Rails.logger.info   ''message2.plain:''
            Rails.logger.info   message2

            render :text => ''success'', :status => 200 #
a status of
404 would reject the mail
          end
        end


That successfully is delivering the entire email message,
replies,forward history etc. The issue is I''d like to be able to
extract just the actual reply text.

Currently I get:

    That''s not a bad idea. Lets try that out.

    On Nov 17, 2010, at 4:18 PM, XXXXX @ XXXXXXXX wrote:
    > There''s a new reply:

And I''d like to know how rails devs get just the reply:

    That''s not a bad idea. Lets try that out.


Ideas? Thanks

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On Nov 17, 2010, at 5:40 PM, CuriousNewbie wrote:
> Hello, I set my app to receive incoming emails via a post from a
> service. The controller that receives the posts looks a little like
> this:
> 
> 
> 
>        class IncomingMailsController < ApplicationController
>          require ''mail''
>          skip_before_filter :verify_authenticity_token
> 
>          def create
>            message = Mail.new(params[:message])
>            message_plain = (params[:plain])
>            Rails.logger.info   ''message2.plain:''
>            Rails.logger.info   message2
> 
>            render :text => ''success'', :status =>
200 # a status of
> 404 would reject the mail
>          end
>        end
> 
> 
> That successfully is delivering the entire email message,
> replies,forward history etc. The issue is I''d like to be able to
> extract just the actual reply text.
> 
> Currently I get:
> 
>    That''s not a bad idea. Lets try that out.
> 
>    On Nov 17, 2010, at 4:18 PM, XXXXX @ XXXXXXXX wrote:
>> There''s a new reply:
> 
> And I''d like to know how rails devs get just the reply:
> 
>    That''s not a bad idea. Lets try that out.
> 
> 
> Ideas? Thanks
In real life it will be a bit more complicated since that delineator
isn''t always the same.  Sometimes it''s what you have there
"on such and such, so and so worte" and sometimes it''s
"--- Original Message" and sometimes it''s something else.  So
you''ll need to check for all the common ones and probably want the
ability to see the entire message in case it messes up or in cases like this
message where I''ve replied *below* that delineator.

But, for your case above assuming the plain text message is in a variable str
then...

str.sub(/\A.*^\SOn \w+ \d+, \d+ at.* wrote:.*/m, '''')

or something close to that ought to do it.

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