{"action":"created","issue":{"url":"https://api.github.com/repos/antlr/antlr4/issues/369","repository_url":"https://api.github.com/repos/antlr/antlr4","labels_url":"https://api.github.com/repos/antlr/antlr4/issues/369/labels{/name}","comments_url":"https://api.github.com/repos/antlr/antlr4/issues/369/comments","events_url":"https://api.github.com/repos/antlr/antlr4/issues/369/events","html_url":"https://github.com/antlr/antlr4/issues/369","id":24005214,"number":369,"title":"do we need parse tree modification routines?","user":{"login":"parrt","id":178777,"avatar_url":"https://avatars0.githubusercontent.com/u/178777?v=3","gravatar_id":"","url":"https://api.github.com/users/parrt","html_url":"https://github.com/parrt","followers_url":"https://api.github.com/users/parrt/followers","following_url":"https://api.github.com/users/parrt/following{/other_user}","gists_url":"https://api.github.com/users/parrt/gists{/gist_id}","starred_url":"https://api.github.com/users/parrt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/parrt/subscriptions","organizations_url":"https://api.github.com/users/parrt/orgs","repos_url":"https://api.github.com/users/parrt/repos","events_url":"https://api.github.com/users/parrt/events{/privacy}","received_events_url":"https://api.github.com/users/parrt/received_events","type":"User","site_admin":false},"labels":[{"id":227767,"url":"https://api.github.com/repos/antlr/antlr4/labels/trees-contexts","name":"trees-contexts","color":"444444","default":false},{"id":237270,"url":"https://api.github.com/repos/antlr/antlr4/labels/type:feature","name":"type:feature","color":"b2b1dd","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/antlr/antlr4/milestones/4","html_url":"https://github.com/antlr/antlr4/milestone/4","labels_url":"https://api.github.com/repos/antlr/antlr4/milestones/4/labels","id":218481,"number":4,"title":"ANTLR 4.x","description":"These issues are currently deferred and have not been assigned to a particular milestone.","creator":{"login":"sharwell","id":1408396,"avatar_url":"https://avatars2.githubusercontent.com/u/1408396?v=3","gravatar_id":"","url":"https://api.github.com/users/sharwell","html_url":"https://github.com/sharwell","followers_url":"https://api.github.com/users/sharwell/followers","following_url":"https://api.github.com/users/sharwell/following{/other_user}","gists_url":"https://api.github.com/users/sharwell/gists{/gist_id}","starred_url":"https://api.github.com/users/sharwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sharwell/subscriptions","organizations_url":"https://api.github.com/users/sharwell/orgs","repos_url":"https://api.github.com/users/sharwell/repos","events_url":"https://api.github.com/users/sharwell/events{/privacy}","received_events_url":"https://api.github.com/users/sharwell/received_events","type":"User","site_admin":false},"open_issues":40,"closed_issues":11,"state":"open","created_at":"2012-11-25T22:05:42Z","updated_at":"2017-02-23T22:20:49Z","due_on":null,"closed_at":null},"comments":9,"created_at":"2013-12-10T00:40:51Z","updated_at":"2017-03-07T19:33:02Z","closed_at":null,"body":"If we allow patterns, we can also allow tree construction from input snippets. Should we add routines to replace parse tree nodes?\nTer\n"},"comment":{"url":"https://api.github.com/repos/antlr/antlr4/issues/comments/284833093","html_url":"https://github.com/antlr/antlr4/issues/369#issuecomment-284833093","issue_url":"https://api.github.com/repos/antlr/antlr4/issues/369","id":284833093,"user":{"login":"pureconfig","id":24296122,"avatar_url":"https://avatars0.githubusercontent.com/u/24296122?v=3","gravatar_id":"","url":"https://api.github.com/users/pureconfig","html_url":"https://github.com/pureconfig","followers_url":"https://api.github.com/users/pureconfig/followers","following_url":"https://api.github.com/users/pureconfig/following{/other_user}","gists_url":"https://api.github.com/users/pureconfig/gists{/gist_id}","starred_url":"https://api.github.com/users/pureconfig/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pureconfig/subscriptions","organizations_url":"https://api.github.com/users/pureconfig/orgs","repos_url":"https://api.github.com/users/pureconfig/repos","events_url":"https://api.github.com/users/pureconfig/events{/privacy}","received_events_url":"https://api.github.com/users/pureconfig/received_events","type":"User","site_admin":false},"created_at":"2017-03-07T19:33:02Z","updated_at":"2017-03-07T19:33:02Z","body":"> A change at a node forces a copy up the spine to the root but shares everything else.\r\n\r\nWouldn't a persistent tree solve these issues? Maybe you can yank one out of Clojure."}}
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