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kakoune/test/regression/1195-infinite-loop-in-regex-matching/cmd

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Change utf8::to_next/to_previous so that they are more symetrical 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
2017-04-20 18:18:49 +03:00
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