Creating regular expressions with r{} literals

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Apr 19 ’12

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Creating regular expressions with r{} literals

Creating a regular expression using the r{} literals can for example be helpful when matching URLs, because you don’t have to escape slashes:

url = "http://example.com/"

# /../ literals:
url.match /http:\/\/example\.com\//
# => #<MatchData "http://example.com/">

# %r{} literals:
url.match %r{http://example\.com/}
# => #<MatchData "http://example.com/">

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