{"action":"closed","issue":{"url":"https://api.github.com/repos/firasdib/Regex101/issues/637","repository_url":"https://api.github.com/repos/firasdib/Regex101","labels_url":"https://api.github.com/repos/firasdib/Regex101/issues/637/labels{/name}","comments_url":"https://api.github.com/repos/firasdib/Regex101/issues/637/comments","events_url":"https://api.github.com/repos/firasdib/Regex101/issues/637/events","html_url":"https://github.com/firasdib/Regex101/issues/637","id":179071301,"number":637,"title":"Unit test: null matches","user":{"login":"OnlineCop","id":1168697,"avatar_url":"https://avatars.githubusercontent.com/u/1168697?v=3","gravatar_id":"","url":"https://api.github.com/users/OnlineCop","html_url":"https://github.com/OnlineCop","followers_url":"https://api.github.com/users/OnlineCop/followers","following_url":"https://api.github.com/users/OnlineCop/following{/other_user}","gists_url":"https://api.github.com/users/OnlineCop/gists{/gist_id}","starred_url":"https://api.github.com/users/OnlineCop/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/OnlineCop/subscriptions","organizations_url":"https://api.github.com/users/OnlineCop/orgs","repos_url":"https://api.github.com/users/OnlineCop/repos","events_url":"https://api.github.com/users/OnlineCop/events{/privacy}","received_events_url":"https://api.github.com/users/OnlineCop/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/firasdib/Regex101/labels/beta","name":"beta","color":"1d76db"},{"url":"https://api.github.com/repos/firasdib/Regex101/labels/bug","name":"bug","color":"e11d21"}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2016-09-25T06:27:36Z","updated_at":"2016-09-26T21:00:25Z","closed_at":"2016-09-26T21:00:25Z","body":"The regex `(\\.)|.` should capture a literal `.` character and match any other character.\r\n\r\nIn the unit tests for https://37.139.17.130/r/tbN2iL/1 the character `.` and `!` are used. For both cases, `.` is matched (correct) and capture group 1 equals `.` (correct).\r\n\r\nThe `!` is matched (correct) and should _not_ be captured, so should match (nothing).\r\n\r\nIf the \"insert comparison string\" is left empty, the saved unit test says that it is _null_ [which looks fine](http://imgur.com/a/AhfS4).\r\n\r\nWhat should the values be to indicate that the capture group should NOT match anything?"}}
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