I have a number of text files that I need to fix up and doing this by hand is just way too tedious when Perl exists to do just this. I have a long paragraph and ends sometimes in the middle of a sentence and I need to break the paragraph at the end of a sentence. For example: 
This is a sample sentence to format.  This is a sample sentence to for
+mat.  This is a sample sentence to format.  This is a sample 

sentence to format.  This is a sample sentence to format.  This is a s
+ample sentence to format.  This is a sample sentence to format.

[download]
I have no idea how to go about this but I need to add the incomplete sentence fragment from the previous paragraph to the beginning of the next paragraph.

Any ideas on how to go about this?

EDIT: I was not really clear on the final output that I needed so am clarifying that here. The help given so far works great except that it produces different output that I need.

Here is what I need the output to look like after processing: 

This is a sample sentence to format.  This is a sample sentence to for
+mat.  This is a sample sentence to format.  This is a sample sentence
+ to format.  

This is a sample sentence to format.  This is a sample sentence to for
+mat.  This is a sample sentence to format.

[download]

In reply to fixing paragraphs by bfdi533

Title:
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