Posts Tagged ‘ regular expressions ’

Boaty McBoatface is on the run

April 6, 2016
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Boaty McBoatface is on the run

I know what you're thinking: two "Boaty McBoatface" articles within two weeks? And we're past April Fool's Day? But since I posted my original analysis about the "Name our ship" phenomenon that's happening in the UK right now, a new contender has appeared: Poppy-Mai. The cause of Poppy-Mai, a critically

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And it’s Boaty McBoatface by an order of magnitude

March 25, 2016
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And it’s Boaty McBoatface by an order of magnitude

In a voting contest, is it possible for a huge population to get behind a ridiculous candidate with such force that no other contestant can possibly catch up? The answer is: Yes. Just ask the folks at NERC, the environmental research organization in the UK. They are commissioning a new

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Using a regular expression to validate a SAS variable name

August 22, 2012
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Using a regular expression to validate a SAS variable name

Regular expressions provide a powerful method to find patterns in a string of text. However, the syntax for regular expressions is somewhat cryptic and difficult to devise. This is why, by my reckoning, approximately 97% of the regular expressions used in code today were copied and pasted from somewhere else.
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Example 8.27: using regular expressions to read data with variable number of words in a field

February 25, 2011
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A more or less anonymous reader commented on our last post, where we were reading data from a file with a varying number of fields. The format of the file was:1 Las Vegas, NV --- 53.3 --- --- 12 Sacramento, CA --- 42.3 --- --- 2The complication in the...
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Some Fun with SAS and Perl Regular Expressions

December 9, 2009
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This post assumes you have a little understanding of how regular expressions work and specifically how SAS implements regular expressions. I recently did something like this and thought it would be good to share. Suppose you have a program that search...
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