{"action":"created","comment":{"url":"https://api.github.com/repos/dotnet/corefx/pulls/comments/59987358","id":59987358,"diff_hunk":"@@ -564,18 +565,27 @@ private string Encode5987(string input)\n         private bool TryDecode5987(string input, out string output)\n         {\n             output = null;\n-            string[] parts = input.Split('\\'');\n-            if (parts.Length != 3)\n+            \n+            int quoteIndex = input.IndexOf('\\'');\n+            if (quoteIndex == -1)\n             {\n                 return false;\n             }\n+            \n+            int lastQuoteIndex = input.LastIndexOf('\\'');\n+            if (quoteIndex == lastQuoteIndex || input.IndexOf('\\'', quoteIndex + 1) != lastQuoteIndex)\n+            {\n+                return false;","path":"src/System.Net.Http/src/System/Net/Http/Headers/ContentDispositionHeaderValue.cs","position":42,"original_position":42,"commit_id":"f8ecaff3351e986f2d9f2769053183460f6b14f0","original_commit_id":"f8ecaff3351e986f2d9f2769053183460f6b14f0","user":{"login":"jamesqo","id":9159214,"avatar_url":"https://avatars.githubusercontent.com/u/9159214?v=3","gravatar_id":"","url":"https://api.github.com/users/jamesqo","html_url":"https://github.com/jamesqo","followers_url":"https://api.github.com/users/jamesqo/followers","following_url":"https://api.github.com/users/jamesqo/following{/other_user}","gists_url":"https://api.github.com/users/jamesqo/gists{/gist_id}","starred_url":"https://api.github.com/users/jamesqo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jamesqo/subscriptions","organizations_url":"https://api.github.com/users/jamesqo/orgs","repos_url":"https://api.github.com/users/jamesqo/repos","events_url":"https://api.github.com/users/jamesqo/events{/privacy}","received_events_url":"https://api.github.com/users/jamesqo/received_events","type":"User","site_admin":false},"body":"@stephentoub Will add.","created_at":"2016-04-17T16:08:54Z","updated_at":"2016-04-17T16:08:54Z","html_url":"https://github.com/dotnet/corefx/pull/7468#discussion_r59987358","pull_request_url":"https://api.github.com/repos/dotnet/corefx/pulls/7468","_links":{"self":{"href":"https://api.github.com/repos/dotnet/corefx/pulls/comments/59987358"},"html":{"href":"https://github.com/dotnet/corefx/pull/7468#discussion_r59987358"},"pull_request":{"href":"https://api.github.com/repos/dotnet/corefx/pulls/7468"}}},"pull_request":{"url":"https://api.github.com/repos/dotnet/corefx/pulls/7468","id":65055438,"html_url":"https://github.com/dotnet/corefx/pull/7468","diff_url":"https://github.com/dotnet/corefx/pull/7468.diff","patch_url":"https://github.com/dotnet/corefx/pull/7468.patch","issue_url":"https://api.github.com/repos/dotnet/corefx/issues/7468","number":7468,"state":"open","locked":false,"title":"Avoid string.Split allocations in System.Net.Http","user":{"login":"jamesqo","id":9159214,"avatar_url":"https://avatars.githubusercontent.com/u/9159214?v=3","gravatar_id":"","url":"https://api.github.com/users/jamesqo","html_url":"https://github.com/jamesqo","followers_url":"https://api.github.com/users/jamesqo/followers","following_url":"https://api.github.com/users/jamesqo/following{/other_user}","gists_url":"https://api.github.com/users/jamesqo/gists{/gist_id}","starred_url":"https://api.github.com/users/jamesqo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jamesqo/subscriptions","organizations_url":"https://api.github.com/users/jamesqo/orgs","repos_url":"https://api.github.com/users/jamesqo/repos","events_url":"https://api.github.com/users/jamesqo/events{/privacy}","received_events_url":"https://api.github.com/users/jamesqo/received_events","type":"User","site_admin":false},"body":"Similar changes that were made in the `FrameworkName` PR in #7288, except for System.Net.Http. Also switched a couple of places to use `nameof`.\r\n\r\n@stephentoub and @davidsh, I found another place that could be optimized similarly to not use `string.Split` [here](https://github.com/dotnet/corefx/compare/master...jamesqo:string-split?expand=1#diff-7cb88d670b5606422fd0cabab628f90cR505). Do you think it's worth it? It would lead to a lot of boilerplate code since this is a 5-element array, but would also help us avoid a couple of `Substring` allocations in addition to the `Split` ones, since `parts[0]`, `parts[4]`, and `parts[2]` wouldn't actually have to be used.","created_at":"2016-04-03T01:12:50Z","updated_at":"2016-04-17T16:08:54Z","closed_at":null,"merged_at":null,"merge_commit_sha":"e29b5f43485ec0180995f8bba855917d4b972b46","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/dotnet/corefx/pulls/7468/commits","review_comments_url":"https://api.github.com/repos/dotnet/corefx/pulls/7468/comments","review_comment_url":"https://api.github.com/repos/dotnet/corefx/pulls/comments{/number}","comments_url":"https://api.github.com/repos/dotnet/corefx/issues/7468/comments","statuses_url":"https://api.github.com/repos/dotnet/corefx/statuses/f8ecaff3351e986f2d9f2769053183460f6b14f0","head":{"label":"jamesqo:string-split","ref":"string-split","sha":"f8ecaff3351e986f2d9f2769053183460f6b14f0","user":{"login":"jamesqo","id":9159214,"avatar_url":"https://avatars.githubusercontent.com/u/9159214?v=3","gravatar_id":"","url":"https://api.github.com/users/jamesqo","html_url":"https://github.com/jamesqo","followers_url":"https://api.github.com/users/jamesqo/followers","following_url":"https://api.github.com/users/jamesqo/following{/other_user}","gists_url":"https://api.github.com/users/jamesqo/gists{/gist_id}","starred_url":"https://api.github.com/users/jamesqo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jamesqo/subscriptions","organizations_url":"https://api.github.com/users/jamesqo/orgs","repos_url":"https://api.github.com/users/jamesqo/repos","events_url":"https://api.github.com/users/jamesqo/events{/privacy}","received_events_url":"https://api.github.com/users/jamesqo/received_events","type":"User","site_admin":false},"repo":{"id":37746383,"name":"corefx","full_name":"jamesqo/corefx","owner":{"login":"jamesqo","id":9159214,"avatar_url":"https://avatars.githubusercontent.com/u/9159214?v=3","gravatar_id":"","url":"https://api.github.com/users/jamesqo","html_url":"https://github.com/jamesqo","followers_url":"https://api.github.com/users/jamesqo/followers","following_url":"https://api.github.com/users/jamesqo/following{/other_user}","gists_url":"https://api.github.com/users/jamesqo/gists{/gist_id}","starred_url":"https://api.github.com/users/jamesqo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jamesqo/subscriptions","organizations_url":"https://api.github.com/users/jamesqo/orgs","repos_url":"https://api.github.com/users/jamesqo/repos","events_url":"https://api.github.com/users/jamesqo/events{/privacy}","received_events_url":"https://api.github.com/users/jamesqo/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/jamesqo/corefx","description":"This repo contains the .NET Core foundational libraries, called CoreFX. 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