[Haskell-cafe] Installing grapefruit: "lexical error at character 'i'"

[Jeffrey Brown]

Regarding replacing the boot-file, I thought I could delete the original
.tar.gz file and replace it with one of my own. But that seems like it
would only be a temporary fix -- would Cabal not discard that for a newer
one every time I update, thus bringing back the problem?

On Mon, Jan 5, 2015 at 2:54 PM, Jeffrey Brown <jeffbrown.the at gmail.com>
wrote:

> I did not realize UIItem.hs and UIItem.hs-boot were separate things; I
> thank Matthew Pickering for pointing out that potential error in a private
> message.
>
> It looks like Alan or Kim was right: the 12th line of the boot file reads
> "#if MIN_VERSION_base(4,7,0)", and the file contains no mention of CPP. I
> am left with two questions:
>
> How to enable CPP?
> ------------------
> Do I just include the following liine at the top of the boot file?
> {-# LANGUAGE CPP #-}
>
> How to replace the boot file?
> -----------------------------
> In my hackage.haskell.org folder there are a lot of subfolders named
> after Haskell libraries -- arrows, cairo, etc. Almost every one of those
> includes in turn a single folder with a version number, and within that a
> .tar.gz file. In order to find the error you all helped me locate, I
> uncompressed the .tar.gz file in the grapefruit-ui folder. I could alter
> that object, but that does not seem likely to help, because I would not be
> altering the data that Haskell actually uses.
>
> Thanks! This is exciting!
>
>
> On Mon, Jan 5, 2015 at 2:22 PM, Jeffrey Brown <jeffbrown.the at gmail.com>
> wrote:
>
>> Thanks guys!
>>
>> I found the library, though, as a .tar.gz file under
>> /home/jeff/.cabal/packages/hackage.haskell.org/grapefruit-ui/0.1.0.5,
>> and when I uncompressed that, found the UIItem file.
>>
>> I can't find the offending character in it, though. Supposedly it was at
>> position 12.2 (line 12, column 2, right?), but I only see whitespace there.
>> The first few lines of it are these ("module" being the first word of the
>> first line):
>>
>> module Internal.UIItem (
>>
>>     -- * User interface items in general
>>     UIItem (UIItem),
>>     item,
>>
>>     -- * Bricks
>>     Brick,
>>     brick,
>>     just,
>>
>>     -- * Boxes
>>     Box,
>>     box,
>>     with,
>>     With (With),
>>
>> On Mon, Jan 5, 2015 at 2:00 PM, Brandon Allbery <allbery.b at gmail.com>
>> wrote:
>>
>>> On Mon, Jan 5, 2015 at 4:56 PM, Jeffrey Brown <jeffbrown.the at gmail.com>
>>> wrote:
>>>
>>>> I wanted to find the offending 'i' character, but the file
>>>> "src/Internal/UIItem.hs-boot" I was unable to find anywhere:
>>>>
>>>
>>> It won't be there, it was removed during cleanup from the failed
>>> install. Use "cabal get grapefruit-ui" to get a more permanent copy of the
>>> source.
>>>
>>> --
>>> brandon s allbery kf8nh                               sine nomine
>>> associates
>>> allbery.b at gmail.com
>>> ballbery at sinenomine.net
>>> unix, openafs, kerberos, infrastructure, xmonad
>>> http://sinenomine.net
>>>
>>
>>
>
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