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How do you validate a URL with a regular expression in Python?
.... I was going to quote the regex for validating a valid email address, but 4K+ characters don't fit in this box. These things are just hard to do, and the best answer probably is a dedicated parser once you manage to find some candidate text to feed it.
– RBerteig
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tinyxml XML解析库下载（tinyxml2.h 和 tinyxml2.cpp） - 源码下载 - 清泛...
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return _nUntracked;
}
// This number is perf sensitive. 4k seems like a good tradeoff on my machine.
// The test file is large, 170k.
// Release: VS2010 gcc(no opt)
// 1k: 4000
// 2k: 4000
// 4k: 3900 21000
// 16k: 5200
// 32k: 4300
// 64k: 4000 21000
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...airs would be of the order of the square of the number of 1s in it: that's 4k ≈ n1.26 which unfortunately is asymptotically much larger than (n log n). In fact, the worst case is even worse: Leo Moser in 1953 constructed (effectively) such strings which have n1-c/√(log n) 1s in them but no evenl...
How to write WinForms code that auto-scales to system font and dpi settings?
...150% on a 1080p screen or 300% which is the Windows recommended value on a 4K screen). But you need to subtract out for the giant Win10 title/caption bar... so more like 1000x680 max Size... which in the designer will be like 994x642 ClientSize. (So, you can do a FindAll References on ClientSize t...
如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...才能在交易中达到一种舒适、自然的境界。
投资是一种游戏，轻松、简单和按部就班才能在竞争中达到盈利。如果你在每天的交易中都感到焦虑和恐慌，心神不定，那么肯定是你的交易方法和你的心率没有和这个品种形成共振...
What is the advantage to using bloom filters?
...nt increases the size of the hash table significantly (The table size is 4*4k). This is assuming you encode the the elements using 2 bits / letter.
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What encoding/code page is cmd.exe using?
..., and stackoverflow.com/a/12015918, and msdn.microsoft.com/en-us/library/tw4k6df8(v=vs.90).aspx Besides obvious portability differences between _setmode() and SetConsoleOutputCP(), there may also be other subtleties and side-effects hidden in both approaches that's not fully understood at first glan...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...heng/archive/2010/03/27/5421914.aspx
by: HengStar 2010/3/27
我是一名游戏开发程序员，研究C++ Boost库已经有一小段时日了，学的越多愈发愈感觉出它的强大，每次学习后在实战项目中高效地使用，都让我兴奋不已，为了让自己记忆更深刻，...
分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...能读出来，也可能读不出来。比如：某些cache系统，网络游戏其它玩家的数据和你没什么关系，VOIP这样的系统，或是百度搜索引擎（呵呵）。
2）Eventually 最终一致性：当你写入一个新值后，有可能读不出来，但在某个时间窗口...
汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...一个小软件比完成一个程序更有成就感（就像学电脑先玩游戏一样）。某些高深的指令事实上只对有经验的汇编程序员有用，对我们而言，太过高深了。为了使学习汇编语言有个好的开始，你必须要先排除那些华丽复杂的命令，...