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Regular expression to match non-ASCII characters?

What is the easiest way to match non-ASCII characters in a regex? I would like to match all words individually in an input string, but the language may not be English, so I will need to match things like ü, ö, ß, and ñ. Also, this is in Javascript/jQuery, so any solution will need to apply to th...
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Multiple levels of 'collection.defaultdict' in Python

Thanks to some great folks on SO, I discovered the possibilities offered by collections.defaultdict , notably in readability and speed. I have put them to use with success. ...
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sprintf like functionality in Python

I would like to create a string buffer to do lots of processing, format and finally write the buffer in a text file using a C-style sprintf functionality in Python. Because of conditional statements, I can’t write them directly to the file. ...
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Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?

I noticed that in Internet Explorer (but, unfortunately, not in the other browsers I tested), you can use some Unicode variable names. This made my day, and I was absolutely delighted that I could write fun Unicode-laden code like this: ...
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Why can't I use a list as a dict key in python?

I'm a bit confused about what can/can't be used as a key for a python dict. 11 Answers ...
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Compare dates in MySQL

I want to compare a date from a database that is between 2 given dates. The column from the database is DATETIME, and I want to compare it only to the date format, not the datetime format. ...
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Perl build, unit testing, code coverage: A complete working example

Most Stackoverflow answers that I have found in regards to the Perl build process and unit testing and code coverage simply point me to CPAN for the documentation there. There's absolutely nothing wrong with pointing to CPAN modules because that's where the full documentation is supposed to reside....
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How to cut an entire line in vim and paste it?

I know how to use the v command in vim, but I need something which will delete an entire line and it should allow me to paste the same line somewhere else. ...
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How to remove folders with a certain name

In Linux, how do I remove folders with a certain name which are nested deep in a folder hierarchy? 11 Answers ...
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The Concept of 'Hold space' and 'Pattern space' in sed

I'm confused by the two concepts in sed: hold space and pattern space. Can someone help explain them? 3 Answers ...