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How can I modify the following regular expression to stop the first match section from grabbing the second? I’m using Ruby 1.9.2 if that makes a difference.
/\Aasync_([a-zA-Z]\w*)(_at|_in)?\z/
You can make the
*quantifier lazy:\w*?means “match any number of alphanumeric characters, but try to match as few as possible while still allowing the overall regex to match”.