For charsets UTF-8, GEORGIAN-ACADEMY and GEORGIAN-PS. The 2 GEORGIAN-*
sets were generated thanks to the new create-table.py script.
Test text comes from page 'ვირზაზუნა' page of Wikipedia in Georgian.
For UTF-8, ISO-8859-1 and WINDOWS-1252 support.
The test for UTF-8 and ISO-8859-1 is taken from 'Marmota' page on
Wikipedia in Catalan. The test for WINDOWS-1252 is taken from the
'Unió_Europea' page. ISO-8859-1 and WINDOWS-1252 being very similar,
regarding most letters (in particular the ones used in Catalan), I
differentiated the test with a text containing the '€' symbol, which is
on an unused spot in ISO-8859-1.
It actually breaks "zh:big5" so I'm going to hold-off a bit. Adding more
language and charset support is slowly starting to show the limitations
of our legacy multi-byte charset supports, since I haven't really
touched these since the original implementation of Mozilla.
It might be time to start reviewing these parts of the code.
The test file contents comes from 'Μαρμότα' page on Wikipedia in Greek
(though since 2 letters are missing in this encoding, despite its
popularity for Greek, I had to be careful in choosing pieces of text
without such letters).
This fixes the broken Russian test in Windows-1251 which once again gets
a much better score with Russian. Also this adds UTF-8 support.
Same as Bulgarian, I wonder why I had not regenerated this earlier.
The new UTF-8 test comes from the 'Сурки' page of Wikipedia in Russian.
Note that now this broke the test zh:gb18030 (the score for KOI8-R / ru
(0.766388) beats GB18030 / zh (0.700000)). I think I'll have to look a
bit closer at our GB18030 dedicated prober.
UTF-8 and Windows-1251 support for now.
This actually breaks ru:windows-1251 test but same as Bulgarian, I never
generated Russian models with my scripts, so the models we currently use
are quite outdated. It will obviously be a lot better once we have new
Russian models.
The test file contents comes from 'Бабак' page on Wikipedia in
Ukrainian.
Not sure why we had the Bulgarian support but haven't recently updated
it (i.e. never with the model generation script, or so it seems),
especially with generic language models, allowing to have
UTF-8/Bulgarian support. Maybe I tested it some time ago and it was
getting bad results? Anyway now with all the recents updates on the
confidence computation, I get very good detection scores.
So adding support for UTF-8/Bulgarian and rebuilding other models too.
Also adding a test for ISO-8859-5/Bulgarian (we already had support, but
no test files).
The 2 new test files are text from page 'Мармоти' on Wikipedia in
Bulgarian language.
Added in both visual and logical order since Wikipedia says:
> Hebrew text encoded using code page 862 was usually stored in visual
> order; nevertheless, a few DOS applications, notably a word processor
> named EinsteinWriter, stored Hebrew in logical order.
I am not using the nsHebrewProber wrapper (nameProber) for this new
support, because I am really unsure this is of any use. Our statistical
code based on letter and sequence usage should be more than enough to
detect both variants of Hebrew encoding already, and my testing show
that so far (with pretty outstanding score on actual Hebrew tests while
all the other probers return bad scores). This will have to be studied a
bit more later and maybe the whole nsHebrewProber might be deleted, even
for Windows-1255 charset.
I'm also cleaning a bit nsSBCSGroupProber::nsSBCSGroupProber() code by
incrementing a single index, instead of maintaining the indexes by hand
(otherwise each time we add probers in the middle, to keep them
logically gathered by languages, we have to manually increment dozens of
following probers).
Since it's a new feature, we may as well write about it, even though I
would personally not recommend this in favor of more standard and
generic pkg-config (which is not dependent on which build system we are
using ourselves).
Replace the old link to the science paper by one on archive-mozilla
website. Remove the original source link as I can't find any archived
version of it (even on archive.org, only the folder structure is saved,
not actual files themselves, so it's useless).
Also add some history, which is probably a nice touch.
Add a link to crossroad to help people who'd want to cross-compile
uchardet.
Finally add the R binding by Artem Klevtsov and QtAV as reported.
Encodings: ISO-8859-4, ISO-8859-13, ISO-8859-13, Windows-1252 and
Windows-1257.
Test text from https://et.wikipedia.org/wiki/Anton_Tšehhov
Windows-1257 and ISO-8859-13 are very close so I added quotation marks
(Jutumärgid) which are on codepoints only present in ISO-8859-13,
making both encoding apart.
Officially supported: ISO-8859-1, ISO-8859-3, ISO-8859-9, ISO-8859-15
and WINDOWS-1252. Same as Finnish only ISO-8859-1 and UTF-8 test added
since other encoding end up similar as ISO-8859-1 for most common texts
(i.e. glyphs used in Italian are on the same codepoints on these other
encodings).
Test text from https://it.wikipedia.org/wiki/Architettura_longobarda
I was planning on adding VISCII support as well, but Python encode()
method does not have any support for it apparently, so I cannot generate
the proper statistics data with the current version of the string.
