[Pharo-users] Codepage 437

Sven Van Caekenberghe sven at stfx.eu
Tue Oct 20 12:38:11 EDT 2015


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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