[Haskell-cafe] how to expand ~ in a filepath

[Richard O'Keefe]

But it's not just ~/ that should be expanded.
All four of "~" "~/bar" "~foo" and "~foo/bar" should be expanded by a
tilde-expander.

On Tue, 22 Jul 2025 at 03:06, Brandon Allbery <allbery.b at gmail.com> wrote:
>
> There's also https://github.com/xmonad/xmonad-contrib/blob/master/XMonad/Prelude.hs#L135-L156 although it also does a few other things.
>
> On Mon, Jul 21, 2025 at 7:57 AM Tristan Cacqueray via Haskell-Cafe <haskell-cafe at haskell.org> wrote:
>>
>>
>> Hello, unfortunately there is no "expandHomePath" or "realpath" helpers
>> in the standard libraries. Searching for "FilePath -> IO FilePath" in
>> hoogle shows an implementation in the hledger project:
>>   https://hackage-content.haskell.org/package/hledger-lib-1.43.2/docs/Hledger-Utils-IO.html#v:expandHomePath
>>
>> … which check if the path begins with "~/", and replace that with the
>> output of "getHomeDirectory"
>>
>> -Tristan
>>
>> On Mon, Jul 21, 2025 at 07:19 PICCA Frederic-Emmanuel wrote:
>> > Hello, I am trying to open and read the content of this kind of filepath.
>> >
>> > ~/debian/changelog
>> >
>> > So is there a prefered way to expand the ~ into the real $HOME.
>> >
>> > thanks for your help
>> >
>> > Frédéric
>> >
>> >
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> --
> brandon s allbery kf8nh
> allbery.b at gmail.com
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