dbcddafbfd
The previous implementation could yield different positions when iterating forward and backward, leading to confusion in boost regex. This makes an existing problem a bit more visible: iterating with to_next and with read_codepoint wont behave the same way, as read_codepoint will put the iterator onto the byte following the utf8 codepoint, whereas to_next will put it on the next utf8 character start byte, which might be different if the buffer content is not valid utf8. Fixes #1195
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2 lines
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