Some good solutions presented here - but - experience shows that the area of greatest difficulty in designing working algorithms is in dealing with "edge conditions".

Ask yourself - those who proposed things like 

line[-1]

[download]
What happens if the first line of the file starts with a continuation character? Sure, this is logically an invalid case, but . . .

In reply to Re: Look ahead and join if the line begins with a + by Maclir
in thread Look ahead and join if the line begins with a + by Rhodium

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