Created
April 3, 2012 20:53
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negative lookahead match
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| irb(main):003:0> r = %r{href="(?!(/|#|mailto))} | |
| => /href="(?!(\/|#|mailto))/ | |
| irb(main):004:0> r =~ 'href="http://foo.com"' | |
| => 0 | |
| irb(main):005:0> r =~ 'href="/root"' | |
| => nil | |
| irb(main):006:0> r =~ 'href="#anchor"' | |
| => nil | |
| irb(main):007:0> r =~ 'href="mailto:[email protected]"' | |
| => nil |
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