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How to replace multiple substrings of a string?
...t;>> pattern.sub(lambda m: rep[re.escape(m.group(0))], "(condition1) and --condition2--")
'() and --text--'
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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...oach would be to check how many digits are output by Integer.toHexString() and add a leading zero to each byte if needed. Something like this:
public static String toHexString(byte[] bytes) {
StringBuilder hexString = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
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What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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Git status ignore line endings / identical files / windows & linux environment / dropbox / mled
...t setting on some work project. On work I must use windows, home I use mac and linux. Before this I had the same problem as you, after that setting everything was ok.
– Saša Šijak
Dec 12 '13 at 15:26
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...S加密/解密，RSA加密/解密，BASE64编码/解码
【数据库】LeanDB 数据库扩展
【数据库】MySQL + php后端数据库
【数据库】MongoDB + php后端数据库
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Hash function that produces short hashes?
Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...展：打造个性化酷炫的底部导航条
【UI】ScrollArrangementHandler 滚动布局管理器拓展：同一屏幕内页面切换效果
【UI】AlphaDialog 扩展：自定义对话框
【UI】Flubbie 拓展：为App添加魔法动画
【UI】SideBar 拓展：实现App的侧边栏效...
How can I safely encode a string in Java to use as a filename?
...ng from an external process. I want to use that String to make a filename, and then write to that file. Here's my code snippet to do this:
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...展：打造个性化酷炫的底部导航条
【UI】ScrollArrangementHandler 滚动布局管理器拓展：同一屏幕内页面切换效果
【UI】AlphaDialog 扩展：自定义对话框
【UI】Flubbie 拓展：为App添加魔法动画
【UI】SideBar 拓展：实现App的侧边栏效...
Difference between Hashing a Password and Encrypting it
... (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are design...