Try F# in your browser • Hacker News Board

Re: Try F# in your browser

#11

Post by timrobinson » Tue, Jan 18, 2011, 4:09 PM UTC

fleitz wrote: post #6

It didn't like this :( It should list out all files from C:\ let root = "C:\\"; let getdirs dir = try System.IO.Directory.GetDirectories(dir) with | e -> Array.empty let rec list_files dir = seq { yield! System.IO.Directory.GetFiles(dir); for subdir in (getdirs dir) do match subdir with | x when x.StartsWith("C:\\$") -> () | subdir -> yield! list_files subdir } list_files root |> Seq.iter (printfn "%s") printf "done"…

Thanks for this - I'll take a look. The same code works fine when run through regular fsi.exe, so presumably something is going amiss over the Ajax interface.

Re: Try F# in your browser

#12

Post by malkia » Tue, Jan 18, 2011, 7:09 PM UTC

timrobinson wrote: post #11

fleitz wrote: post #6

It didn't like this :( It should list out all files from C:\ let root = "C:\\"; let getdirs dir = try System.IO.Directory.GetDirectories(dir) with | e -> Array.empty let rec list_files dir = seq { yield! System.IO.Directory.GetFiles(dir); for subdir in (getdirs dir) do match subdir with | x when x.StartsWith("C:\\$") -> () | subdir -> yield! list_files subdir } list_files root |> Seq.iter (printfn "%s") printf "done"…

Thanks for this - I'll take a look. The same code works fine when run through regular fsi.exe, so presumably something is going amiss over the Ajax interface.

It works here, but lists certain files from the system, and stops at "Documents And Settings" - no rights etc.

I had to pad the first "let" to be at the same padding as the second one

Re: Try F# in your browser

#13

Post by timrobinson » Tue, Jan 18, 2011, 10:39 PM UTC

malkia wrote: post #12

timrobinson wrote: post #11

Earlier quoted context omitted.

Thanks for this - I'll take a look. The same code works fine when run through regular fsi.exe, so presumably something is going amiss over the Ajax interface.

It works here, but lists certain files from the system, and stops at "Documents And Settings" - no rights etc. I had to pad the first "let" to be at the same padding as the second one

The app got into a state where new fsi.exe processes wouldn't start up properly - they'd raise an unhandled exception and hang. I started being more diligent about cleaning up old processes.