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PHP validation/regex for URL

...nto issues, but I'm sure it's not exhaustive: $text = preg_replace( '#((https?|ftp)://(\S*?\.\S*?))([\s)\[\]{},;"\':<]|\.\s|$)#i', "'<a href=\"$1\" target=\"_blank\">$3</a>$4'", $text ); Most of the random junk at the end is to deal with situations like http://domain.com. in ...
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How can I install Apache Ant on Mac OS X?

...owing command in a terminal window to install brew: ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" It's a medium sized download which took me 10min to download and install. Just follow the process which involves installing various components. If you alre...
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No secret option provided to Rack::Session::Cookie warning?

...ss API contract. The warning can be safely ignored by Rails users. (https://github.com/rack/rack/issues/485#issuecomment-11956708, emphasis added) Confirmation on the rails bug discussion: https://github.com/rails/rails/issues/7372#issuecomment-11981397 ...
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How to include a Font Awesome icon in React's render()

...o add the font-awesome CSS to index.html: <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css"> share | improve this answer | ...
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What is the Gradle artifact dependency graph command?

... The command is gradle dependencies, and its output is much improved in Gradle 1.2. (You can already try 1.2-rc-1 today.) share | improve this answe...
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Search all of Git history for a string? [duplicate]

I have a code base which I want to push to GitHub as open source. In this git-controlled source tree, I have certain configuration files which contain passwords. I made sure not to track this file and I also added it to the .gitignore file. However, I want to be absolutely positive that no sensiti...
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Finding three elements in an array whose sum is closest to a given number

Given an array of integers, A 1 , A 2 , ..., A n , including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok. ...
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What's is the difference between train, validation and test set, in neural networks?

... used to report the generalization error on the selected model. From here: https://www.coursera.org/learn/machine-learning/lecture/QGKbr/model-selection-and-train-validation-test-sets share | improv...
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Custom Adapter for List View

I want to create a custom adapter for my list view. Is there any article that can walk me through how to create one and also explain how it works? ...
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Why is “while ( !feof (file) )” always wrong?

I've seen people trying to read files like this in a lot of posts lately: 5 Answers 5 ...