{"action":"opened","issue":{"url":"https://api.github.com/repos/rain-1/racket-peg/issues/67","repository_url":"https://api.github.com/repos/rain-1/racket-peg","labels_url":"https://api.github.com/repos/rain-1/racket-peg/issues/67/labels{/name}","comments_url":"https://api.github.com/repos/rain-1/racket-peg/issues/67/comments","events_url":"https://api.github.com/repos/rain-1/racket-peg/issues/67/events","html_url":"https://github.com/rain-1/racket-peg/issues/67","id":387541345,"node_id":"MDU6SXNzdWUzODc1NDEzNDU=","number":67,"title":"difficult to parse a basic language","user":{"login":"rain-1","id":17393876,"node_id":"MDQ6VXNlcjE3MzkzODc2","avatar_url":"https://avatars0.githubusercontent.com/u/17393876?v=4","gravatar_id":"","url":"https://api.github.com/users/rain-1","html_url":"https://github.com/rain-1","followers_url":"https://api.github.com/users/rain-1/followers","following_url":"https://api.github.com/users/rain-1/following{/other_user}","gists_url":"https://api.github.com/users/rain-1/gists{/gist_id}","starred_url":"https://api.github.com/users/rain-1/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rain-1/subscriptions","organizations_url":"https://api.github.com/users/rain-1/orgs","repos_url":"https://api.github.com/users/rain-1/repos","events_url":"https://api.github.com/users/rain-1/events{/privacy}","received_events_url":"https://api.github.com/users/rain-1/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-12-05T00:35:10Z","updated_at":"2018-12-05T00:35:10Z","closed_at":null,"author_association":"OWNER","body":"https://www.rosettacode.org/wiki/Brace_expansion\r\n\r\n```\r\n#lang peg\r\n\r\nitem <- [^{},]+ / ~'{' choice ~'}';\r\nchoice <- x:item+ xs:(~',' item+)* -> (cons x xs);\r\n\r\n; > (peg (+ item) \"It{{em,alic}iz,erat}e{d,}\")\r\n; '(\"It\" (((\"em\" . \"alic\") \"iz\") . \"erat\") \"e\")\r\n```\r\n\r\nThe resulting parse is confusing and we can't change the char class to *. it's too hard to parse this simple language."}}
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