[web-devel] safety of Data.Ascii.unsafeFromString
michael at snoyman.com
Thu Jun 9 13:58:00 CEST 2011
I would say to use the Data.Text.Encoding functions to convert to a
ByteString. If you want to be very careful, you should validate the
Text value to ensure there are no non-ASCII values first, but in
practice this probably should be an issue.
On Thu, Jun 9, 2011 at 2:10 PM, Max Cantor <mxcantor at gmail.com> wrote:
> so, if i want to take the FileContentType from FileInfo, which is from fileField in forms, which is a Data.Text and convert that to a contentType to use in sendFile (which takes a ContentType which is a Data.ByteString), what is the preferred way to do that?
> On Jun 9, 2011, at 7:07 PM, Michael Snoyman wrote:
>> You don't even get a runtime exception: your results are silently
>> broken. It's no worse than Data.ByteString.Char8.pack.
>> But the ascii package isn't really being used going forward, people
>> didn't like the extra noise it added to their code.
>> On Thu, Jun 9, 2011 at 2:04 PM, Max Cantor <mxcantor at gmail.com> wrote:
>>> just how unsafe are the unsafeXXX functions in Data.Ascii? IS it just that you might get a runtime exception or could they do some more serious damage somehow?
>>> web-devel mailing list
>>> web-devel at haskell.org
More information about the web-devel