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Ruby Regex Literal

Ruby has a nice percent string literal for regular expressions, %r. It's like // but allows your regex to contain backslashes without escaping them.

Check it out:

2.1.0 :001 > ''.gsub(/http:\/\/, 'fine')
 => "fine"
2.1.0 :002 > ''.gsub(%r{}, 'better')
 => "better"

As the example implies, this is useful when matching URLs.


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