[Pharo-users] Codepage 437

Norbert Hartl norbert at hartl.name
Thu Oct 22 08:04:53 EDT 2015


Thanks Sven. I'll look into this soon and will provide feedback.

Norbert

> Am 20.10.2015 um 18:38 schrieb Sven Van Caekenberghe <sven at stfx.eu>:
> 
> I added the following:
> 
> ===
> Name: Zinc-Character-Encoding-Core-SvenVanCaekenberghe.41
> Author: SvenVanCaekenberghe
> Time: 20 October 2015, 6:35:23.106957 pm
> UUID: c6b0b265-827d-439b-b241-81bce4c56dc3
> Ancestors: Zinc-Character-Encoding-Core-SvenVanCaekenberghe.40
> 
> Introduction of ZnByteEncoder class>>#newFromUrl:
> Refactoring introduced #top123FromUnicodeSpec:
> ===
> Name: Zinc-Character-Encoding-Tests-SvenVanCaekenberghe.23
> Author: SvenVanCaekenberghe
> Time: 20 October 2015, 6:36:04.004228 pm
> UUID: 265ff0e3-85df-47d2-8821-f9979aca15a0
> Ancestors: Zinc-Character-Encoding-Tests-SvenVanCaekenberghe.22
> 
> Added ZnCharacterEncoderTests>>#testByteEncoderFromUrl
> ===
> 
> So now you can do
> 
>  ZnByteEncoder newFromUrl: 'http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/PC/CP437.TXT'.
> 
> But you better cache that instance somewhere.
> 
> Sven
> 
> On 20 Oct 2015, at 16:07, stepharo <stepharo at free.fr> wrote:
>> 
>> 
>> Excellent!
>> You rock sven!
>> 
>> Le 20/10/15 14:22, Sven Van Caekenberghe a écrit :
>>> Norbert,
>>> 
>>>> On 20 Oct 2015, at 14:11, Norbert Hartl <norbert at hartl.name> wrote:
>>>> 
>>>> Is there any way to read a codepage 437 encoded file with pharo?
>>>> 
>>>> thanks,
>>>> 
>>>> Norbert
>>> This could be done with ZnByteEncoder, but that encoding is not provided by default. So you need to generate a new mapping method, luckily this can be done automagically:
>>> 
>>> ZnByteEncoder generateByteToUnicodeSpec: 'http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/PC/CP437.TXT'.
>>> 
>>> Put it on the class side and plug it in #mappingToIdentifiers and #initialize again. I guess you maybe could provide a one-shot instance, but I have never done that and adding it as known encoding will be easier at first.
>>> 
>>> I am sure you will figure it out ;-)
>>> 
>>> Let me know how it goes, maybe it would be a good idea to allow one-shot encoder instances based just on a spec from unicode.org
>>> 
>>> Sven
>>> 
>>> 
>>> 
>> 
>> 
> 
> 





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