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23 lines
607 B
Ruby
23 lines
607 B
Ruby
describe "Regexps with grouping" do
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it 'support ()' do
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/(a)/.match("a").to_a.should == ["a", "a"]
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end
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it "allow groups to be nested" do
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md = /(hay(st)a)ck/.match('haystack')
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md.to_a.should == ['haystack','haysta', 'st']
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end
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=begin
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it "raise a SyntaxError when parentheses aren't balanced" do
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lambda { eval "/(hay(st)ack/" }.should raise_error(SyntaxError)
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end
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=end
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it 'supports (?: ) (non-capturing group)' do
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/(?:foo)(bar)/.match("foobar").to_a.should == ["foobar", "bar"]
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# Parsing precedence
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/(?:xdigit:)/.match("xdigit:").to_a.should == ["xdigit:"]
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end
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end
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