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23
24description(
25'Test regular expression processing with alternatives.'
26);
27
28var s1 = "<p>content</p>";
29shouldBe('s1.match(/<((\\/([^>]+)>)|(([^>]+)>))/)', '["<p>","p>",undefined,undefined,"p>","p"]');
30shouldBe('s1.match(/<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))/)', '["<p>","p>",undefined,undefined,undefined,"p>","p"]');
31shouldBe('s1.match(/<(a|\\/p|.+?)>/)', '["<p>","p"]');
32
33// Force YARR to use Interpreter by using iterative parentheses
34shouldBe('s1.match(/<((\\/([^>]+)>)|((([^>])+)>))/)', '["<p>","p>",undefined,undefined,"p>","p","p"]');
35shouldBe('s1.match(/<((ABC>)|(\\/([^>]+)>)|((([^>])+)>))/)', '["<p>","p>",undefined,undefined,undefined,"p>","p","p"]');
36shouldBe('s1.match(/<(a|\\/p|(.)+?)>/)', '["<p>","p","p"]');
37
38// Force YARR to use Interpreter by using backreference
39var s2 = "<p>p</p>";
40shouldBe('s2.match(/<((\\/([^>]+)>)|(([^>]+)>))\\5/)', '["<p>p","p>",undefined,undefined,"p>","p"]');
41shouldBe('s2.match(/<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))\\6/)', '["<p>p","p>",undefined,undefined,undefined,"p>","p"]');
42shouldBe('s2.match(/<(a|\\/p|.+?)>\\1/)', '["<p>p","p"]');
43