Yoke

Implement ext2 reader/writer library

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## Summary https://github.com/nuta/kerla/issues/48#issuecomment-962287339

The `mysql server` error log cannot be located to the exact location

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**Description** When I was debugging, I found that the stack information of the exception often could not locate the real exception occurrence point. **Proposal** **Additional context** when i debugging this...

use default '/archives/' was not show page

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## Issue Checklist - [x] I am using [the latest](https://github.com/theme-next/hexo-theme-next/releases/latest) version of NexT. - [x] I have read the relevant documents of [Hexo](https://hexo.io/docs/) and [NexT](https://theme-next.org/docs/). - [x] I have reviewed...

edit: datum struct string type added utf8 check

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## Rationale Close #1300 ## Detailed Changes Check whether it is a utf8 string when inserting data ## Test Plan pass