Behavior change of Data.Char

Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=) kazu at iij.ad.jp
Thu Feb 19 10:14:35 UTC 2015


David,

Thank you for the information.

I would like to know whether or not this behavior changes are
intentional.  If they are bugs, we need to fix them before releasing
GHC 7.10.1.

--Kazu

> 7.10 uses a newer version of Unicode, which could explain differences.
> 
> On Thu, Feb 19, 2015 at 12:19 AM, Kazu Yamamoto <kazu at iij.ad.jp> wrote:
>> Hi,
>>
>> It seems to me that some characters of GHC 7.10.1RC2 behave
>> differently from those of GHC 7.8.4:
>>
>>                           7.8.4   7.10.1RC2
>> isLower (char 170)        True    False
>> isSymbol (chr 182)        True    False
>> isPunctuation (chr 182)   Fase    True
>>
>> Is this intentional?
>>
>> I noticed this because I received a bug report:
>>
>>         https://github.com/kazu-yamamoto/word8/issues/3
>>
>> As you can see, 167 also behaves differently.
>>
>> --Kazu
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