Jigao Luo

new ch translation for word capturing group

1

refer to #186 I think `捕获组` is way better for translating the word `capturing group`. I did replace all the occurrences of the old translation with `捕获组`

Refer the issue #190 Also consider the translation way from the issue #186

In the english version we can find seciton `4.1 Positive Lookahead`, but there is no corresponding translated section in the chinese version.

Refer the description in #188

[Chinese Translation] `特征标群` for `Capturing Group`

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首先我尝google和百度去搜索：　特征标群　正则表达式 [Google结果](https://www.google.com/search?safe=strict&sxsrf=ACYBGNQVMLfU9IM4j8i2nPmD5fm1vUml6g%3A1578326676648&ei=lFoTXseXJ83BkwX2ioOQCA&q=%E7%89%B9%E5%BE%81%E6%A0%87%E7%BE%A4%E3%80%80%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F&oq=%E7%89%B9%E5%BE%81%E6%A0%87%E7%BE%A4%E3%80%80%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F&gs_l=psy-ab.3...42252.50616..50818...1.2..0.76.213.3......0....1..gws-wiz.......0i71.1-rNKyUAGR0&ved=0ahUKEwjHsZqHre_mAhXN4KQKHXbFAIIQ4dUDCAs&uact=5 ) [百度结果](https://www.baidu.com/s?wd=%E7%89%B9%E5%BE%81%E6%A0%87%E7%BE%A4%20%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F&rsv_spt=1&rsv_iqid=0xc2033ee7000f2bc9&issp=1&f=8&rsv_bp=1&rsv_idx=2&ie=utf-8&rqlang=cn&tn=baiduhome_pg&rsv_enter=1&rsv_dl=tb&oq=%25E7%2589%25B9%25E5%25BE%2581%25E6%25A0%2587%25E7%25BE%25A4&inputT=15022&rsv_t=0052WrkrDcQan8gx0wOsObDVLBBowhN3EdUmbNIEDJQ3tPx2sAdKdSv6f76Rlhkkz1Ye&rsv_sug3=6&rsv_sug1=3&rsv_sug7=100&rsv_pq=be6e8f6600059ada&rsv_sug2=0&rsv_sug4=16519) 所有的页面都指向此repo中文翻译页面的转载。我很难去单纯的搜索到`特征标群`的定义和意思，这可能是一个群论(Group theory)下面的一个名词。 [wiki](https://zh.wikipedia.org/wiki/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F)采用了`捕捉群`这个翻译: > ... 用括号围起来的捕捉群（capture group）... 更多的搜索引擎指向`捕获组`这个翻译，通过它很容易能搜到对应的正则表达式Capturing Group的内容。 我觉得我们可以换一个翻译，`捕获组`是一个很好的选择。

English: > Lookbehind and lookahead (also called lookaround) are specific types of ***non-capturing groups*** (used to match the pattern but not included in matching list). Lookarounds are used when we...

Add a paper URL.

4

Fix #48 The paper `Modelling Costs for a MM-DBMS` has a file extension of `ps`, which could be converted into a normal `pdf` file. The semantic scholar page of this...

The paper `Modelling Costs for a MM-DBMS` has itself no link to the paper file. https://github.com/pingcap/awesome-database-learning/blob/b65cb5bfc2b404b0e6974f6f78a3c226744a1620/README.md?plain=1#L190

Question to the design of disk manager

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I would like to ask a simple question: **Is disk manager in bustub thread safe?** I would try to give my answer: it is not thread safe. - reason 1:...

Linux netease-cloud-music Ver 1.2+ are NOT supported

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Ubuntu 18.04 LTS 有会员 网线 还是有灰色（没有任何变化） ``` 2019-09-05 15:19:07+0200 [-] Log opened. 2019-09-05 15:19:11+0200 [-] NeteaseMusicProxyFactory starting on 32794 2019-09-05 15:19:11+0200 [-] Starting factory 2019-09-05 15:19:59+0200 [-] Starting factory 2019-09-05...