ISO-8859-2 should be detected

[Jehan]

In your README, ISO-8859-2 is not supported. Yet I can find a model for it in src/LangHungarianModel.cpp. I tried it with a ISO-8859-2 file I built myself:
https://cloud.libreart.info/public.php?service=files&t=40140bd3fd105b2c03d7716dfe4b498a
And it fails detecting it as "windows-1252".

On the other hand python-chardet was able to properly detect the ISO-8859-2 encoding:

$ chardetect iso-8859-2.smi
iso-8859-2.smi: ISO-8859-2 with confidence 0.850807928898

Considering they are both supposed to be based on the same algorithm from Mozilla and that you have mention of this encoding in your code, I'm thinking it would be cool if it were supported.

[Jehan]

For info, I can see in src/nsSBCSGroupProber.cpp that it has been disabled lines 83-84:

// disable latin2 before latin1 is available, otherwise all latin1
// will be detected as latin2 because of their similarity.
//mProbers[10] = new nsSingleByteCharSetProber(&Latin2HungarianModel);
//mProbers[11] = new nsSingleByteCharSetProber(&Win1250HungarianModel);

I'm unsure why we'd need latin1 (ISO 8859-1) support first. Anyway files in latin1 will be wrongly detected, now they would still be wrongly detected, but in another encoding.
Well anyway, I'll have a closer look, and will investigate if needed.

[Jehan]

I have added some ISO-8859-1 and ISO-8859-2 test files and now I understand the issue.
Both files are currently detected as WINDOWS-1252. If I activate ISO-8859-2, they both are activated as ISO-8859-2.
The problem is that Windows-1252 is a superset of ISO-8859-1, so it is actually not a completely wrong answer, but it becomes completely wrong once ISO-8859-2 is activated. So let's indeed wait for clear ISO-8859-1 support.

[Jehan]

Fixed with commit 6832552.