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How to remove non-alphanumeric characters?
...orld'); // helloworld
preg_replace('/[^\p{L}\p{N} ]+/', '', 'abc@~#123-+=öäå'); // abc123öäå
preg_replace('/[^\p{L}\p{N} ]+/', '', '你好世界!@£$%^&*()'); // 你好世界
Note: This is a very old, but still relevant question. I am answering purely to provide supplementary informati...
安裝 APP Inventor 模拟器 aiStarter - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...直接做好了最新的绿色版，无需安装，解压即用，内置AI伴侣已升级最新。
免费高速下载地址：https://www.fun123.cn/reference/creative/ai2_starter.html
图表组件 · App Inventor 2 中文网
...r2 相关性将通过 拟合系数 属性块报告。
注：此组件对AI伴侣要求最低版本为v2.70 (旧版本请扫码升级：帮助 -> AI伴侣信息)，编译为apk则不受限制安装后可正常运行。
属性
图表数据
要计算最佳拟合线的数...
Is there a way to get rid of accents and convert a whole string to regular letters?
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I have an objection to this solution. Imagine input "æøåá". Current flattenToAscii creates result "aa.." where dots represent \u0000. That is not good. First question is - how to represent "unnormalizable" characters? Let's say it will be ?, or we can leave NULL char there, but...
Regular expression to match DNS hostname or IP Address?
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Here: stackoverflow.com/questions/4645126/… - I explain that names that start with a digit are considered as valid as well. Also, only one dot is questionable issue. Would be great to have more feedback on that.
– BreakPhreak
Jan 10 '11 a...
AppInventor2 屏幕如何切换成横屏？ - App应用开发 - 清泛IT社区，为创新赋能！
设置Screen1的“屏幕方向”属性即可：
预览如下：
ai2Stater测试效果如下：
ai2Stater模拟器窗口无法横屏，但是Mumu模拟器及手机AI伴侣测试的话，则会自动横屏。
请问输入文件要往哪放? - App应用开发 - 清泛IT社区，为创新赋能！
...名诸如 "test.txt"，就是在这个目录下：（上面是AI伴侣的App目录，如果最终编译apk运行，则到 appinventor.ai_[账户名].[项目名] 目录下查看文件）理论上，读写方法都是这样写路径，如果运行有问题，请贴出具体的报错截图。...
How do I sort unicode strings alphabetically in Python?
...;>> import icu # pip install PyICU
>>> sorted(['a','b','c','ä'])
['a', 'b', 'c', 'ä']
>>> collator = icu.Collator.createInstance(icu.Locale('de_DE.UTF-8'))
>>> sorted(['a','b','c','ä'], key=collator.getSortKey)
['a', 'ä', 'b', 'c']
...
What does the ??!??! operator do in C?
...the possibility of if (x || y) { a[i] = '\0'; } looking like if (x öö y) ä aÄiÅ = 'Ö0'; å in the wrong charset.
– Ilmari Karonen
Oct 20 '11 at 13:36
9
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What's the equivalent of use-commit-times for git?
... no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branches?".)
The long answer was:
I think you're much better off just using multiple repositories instead, if this is something common.
Messing with timestamps is not going to work in gen...