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Regular expression to find URLs within a string

Does anyone know of a regular expression I could use to find URLs within a string? I've found a lot of regular expressions on Google for determining if an entire string is a URL but I need to be able to search an entire string for URLs. For example, I would like to be able to find www.google.com ...
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Difference between Inheritance and Composition

Are Composition and Inheritance the same? If I want to implement the composition pattern, how can I do that in Java? 17 Ans...
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How to add a local repo and treat it as a remote repo

I'm trying to make a local repo act as a remote with the name bak for another local repo on my PC, using the following: 4...
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Is floating point math broken?

... 31 Answers 31 Active ...
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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?

To check what @some_var is, I am doing a 9 Answers 9 ...
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Do I need a content-type header for HTTP GET requests?

As far as I understood there are two places where to set the content type: 6 Answers 6...
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Save PL/pgSQL output from PostgreSQL to a CSV file

What is the easiest way to save PL/pgSQL output from a PostgreSQL database to a CSV file? 18 Answers ...
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Write a program that will surely go into deadlock [closed]

I recently got this questions asked in an interview. 13 Answers 13 ...
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Is it possible to forward-declare a function in Python?

Is it possible to forward-declare a function in Python? I want to sort a list using my own cmp function before it is declared. ...
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“static const” vs “#define” vs “enum”

Which one is better to use among the below statements in C? 17 Answers 17 ...