[Qt-creator] "Editing not possible" solution

[Ziller Eike]

> On Jan 23, 2015, at 3:42 PM, Frédéric Marchal <frederic.marchal at wowtechnology.com> wrote:
> 
> On Friday 23 January 2015 14:24:30, Ziller Eike wrote :
>>> On Jan 21, 2015, at 7:20 AM, Frédéric Marchal
>>> <frederic.marchal at wowtechnology.com> wrote:
>>> What would be more reasonable is to have one fallback encoding when
>>> UTF-8 fails and a BOM was expected.
>>> 
>>> Without BOM, it is unreliable and would fail if the file contains some
>>> characters from another character set but that happen to match valid
>>> UTF-8 sequences. In that case, the file would be wrongly opened as
>>> UTF-8.
>> 
>> If you set an encoding to use in Qt Creator, either globally or for your
>> project, then files that have UTF BOM are opened as UTF, and all others
>> are opened with that encoding you set. Do I understand correctly that this
>> is what you propose here as well?
> 
> It is not exactly the same.
> 
> The current behavior requires a BOM at the beginning of every UTF-8 encoded 
> file. QtCreator is then configured with a non UTF-8 default character set to 
> serve as a fallback when the BOM is missing.
> 
> I had in mind to have a second character encoding to use when UTF-8 fails (or 
> UTF-16 or any encoding that can do some kind of validation).
> 
> To explain a bit more, I have many old source files encoded with Windows1252 
> that I can't convert to UTF-8 (because they are still compiled with an old 
> compiler that doesn't know about UTF-8). But contrary to the OP, I know the 
> encoding is Windows1252 when UTF-8 fails. Having a fallback encoding would 
> spare me the same repetitive action when I open a Windows1252 encoded file.

Ok, then this would be what I suggest in my other mail.

> I'm also reluctant to add a BOM to the source files that are UTF-8 because I 
> don't know how portable the BOM is. I don't want to start using a BOM to find 
> out much later that it doesn't work with one of the many programs I sometime 
> use to edit files. I'm thinking about sed, some perl scripts I wrote to do 
> various tasks, other old programs whose origin is uncertain…
> 
> Note that it is certainly a very very low priority task (not worth mentioning) 
> if I'm the only one asking for it! :-)
> 
> Frederic
> 
> 
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Eike Ziller, Senior Software Engineer - The Qt Company GmbH
 
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