[fpc-pascal] TZipper and special file names like "atenção.txt" (#26213)

[Michael Van Canneyt]

On Fri, 23 May 2014, Tomas Hajny wrote:

> On Fri, May 23, 2014 17:38, Reinier Olislagers wrote:
>> On 23/05/2014 17:30, Michael Van Canneyt wrote:
>>> On Fri, 23 May 2014, silvioprog wrote:
> .
> .
>>>> I have a program that makes daily backups, and just discovered this
>>>> problem when I noticed that it did not compressing files with names
>>>> with special characters.
>>>
>>> This is not fixable. The zip standard has no rules for encoding
>>> filenames.
>>> Whatever bytes you put in is what comes out.
>>> You are entirely responsible for handling the encoding.
>>
>> Not quite, according to the spec
>> http://www.pkware.com/documents/casestudies
> .
> .
>
> I can't access this URL (HTTP 403 - Forbidden). The right URL seems to be
> http://www.pkware.com/documents/casestudies/APPNOTE.TXT.

Indeed.

A proper implementation would require a serious rewrite of this component
with a unicode API. This can be entered as a feature request if so desired.

Michael.