{"action":"created","issue":{"url":"https://api.github.com/repos/lualatex/luaotfload/issues/357","repository_url":"https://api.github.com/repos/lualatex/luaotfload","labels_url":"https://api.github.com/repos/lualatex/luaotfload/issues/357/labels{/name}","comments_url":"https://api.github.com/repos/lualatex/luaotfload/issues/357/comments","events_url":"https://api.github.com/repos/lualatex/luaotfload/issues/357/events","html_url":"https://github.com/lualatex/luaotfload/issues/357","id":153407177,"number":357,"title":"crash upon IVS (TL2016)","user":{"login":"dohyunkim","id":4328134,"avatar_url":"https://avatars.githubusercontent.com/u/4328134?v=3","gravatar_id":"","url":"https://api.github.com/users/dohyunkim","html_url":"https://github.com/dohyunkim","followers_url":"https://api.github.com/users/dohyunkim/followers","following_url":"https://api.github.com/users/dohyunkim/following{/other_user}","gists_url":"https://api.github.com/users/dohyunkim/gists{/gist_id}","starred_url":"https://api.github.com/users/dohyunkim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dohyunkim/subscriptions","organizations_url":"https://api.github.com/users/dohyunkim/orgs","repos_url":"https://api.github.com/users/dohyunkim/repos","events_url":"https://api.github.com/users/dohyunkim/events{/privacy}","received_events_url":"https://api.github.com/users/dohyunkim/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/lualatex/luaotfload/labels/font%20loader%20bug","name":"font loader bug","color":"bfe5bf"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2016-05-06T08:50:12Z","updated_at":"2016-05-25T00:38:27Z","closed_at":null,"body":"With luaotfload v2.7-fix-2, compiling an example which contains IVS (Ideographic Variation Sequence) gives me an error.\r\n```tex\r\n\\input luaotfload.sty\r\n\\font\\jpfont=ipaexm.ttf at 10pt\r\n\\jpfont\r\n\\char\"5307\r\n\\char\"5307\\char\"E0100\r\n\\char\"5307\\char\"E0101\r\n\\bye\r\n```\r\nThe error message is\r\n```\r\nerror: ...xmf-dist/tex/luatex/luaotfload/fontloader-2016-05-04.lua:19524: attempt to compare number with nil\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/lualatex/luaotfload/issues/comments/221442707","html_url":"https://github.com/lualatex/luaotfload/issues/357#issuecomment-221442707","issue_url":"https://api.github.com/repos/lualatex/luaotfload/issues/357","id":221442707,"user":{"login":"khaledhosny","id":93914,"avatar_url":"https://avatars.githubusercontent.com/u/93914?v=3","gravatar_id":"","url":"https://api.github.com/users/khaledhosny","html_url":"https://github.com/khaledhosny","followers_url":"https://api.github.com/users/khaledhosny/followers","following_url":"https://api.github.com/users/khaledhosny/following{/other_user}","gists_url":"https://api.github.com/users/khaledhosny/gists{/gist_id}","starred_url":"https://api.github.com/users/khaledhosny/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/khaledhosny/subscriptions","organizations_url":"https://api.github.com/users/khaledhosny/orgs","repos_url":"https://api.github.com/users/khaledhosny/repos","events_url":"https://api.github.com/users/khaledhosny/events{/privacy}","received_events_url":"https://api.github.com/users/khaledhosny/received_events","type":"User","site_admin":false},"created_at":"2016-05-25T00:38:27Z","updated_at":"2016-05-25T00:38:27Z","body":"> until we happen to encounter in the future an abnormal font which uses Variation Selectors in OpenType feature processing.\r\n\r\nMany (may be most) Mongolian fonts handle variation selectors using GSUB substitutions instead of special cmap tables."}}
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