[Qt-interest] QTextCodec?

[nobody]

On 19/08/2010 2:01 AM, Thiago Macieira wrote:
> On Wednesday 18 August 2010 14:47:55 nobody wrote:
>> Hi,
>> Anyone know if this function will work without libiconv installed on
>> win32 QTextCodec::toUnicode() ?
>>
>> I can't find any configure option using enable iconv with Qt-4.7 beta2
>> But this particular function crash at run-time
>> QTextCodec::codecForName("supported encodings")
>> The returned codec is zero.
>
> Qt doesn't offer you codecs from libiconv. It uses libiconv only to translate
> the Unix locale to UTF-8, so that we don't need to detect which charset the
> locale uses.
I see so don't have to worry about not having libiconv installed on Windows.
>
> libiconv is not used on Windows.
>
> That also means that Qt offers exactly the same codecs on Windows, on Mac and
> on Linux, but not on Symbian (on Symbian, we actually do offer the codecs from
> the system).
I just ran function on Qt 4.7 beta2 on my system and it returns this list.
QList<QByteArray> availableCodecs ()

UTF-8
ISO-8859-1
latin1
CP819
IBM819
iso-ir-100
csISOLatin1
ISO-8859-15
latin9
UTF-32LE
UTF-32BE
UTF-32
UTF-16LE
UTF-16BE
UTF-16
System
roman8
hp-roman8
csHPRoman8
TIS-620
ISO 8859-11
WINSAMI2
WS2
Apple Roman
macintosh
MacRoman
windows-1258
CP1258
windows-1257
CP1257
windows-1256
CP1256
windows-1255
CP1255
windows-1254
CP1254
windows-1253
CP1253
windows-1252
CP1252
windows-1251
CP1251
windows-1250
CP1250
IBM866
CP866
csIBM866
IBM874
CP874
IBM850
CP850
csPC850Multilingual
ISO-8859-16
iso-ir-226
latin10
ISO-8859-14
iso-ir-199
latin8
iso-celtic
ISO-8859-13
ISO-8859-10
iso-ir-157
latin6
ISO-8859-10:1992
csISOLatin6
ISO-8859-9
iso-ir-148
latin5
csISOLatin5
ISO-8859-8
ISO 8859-8-I
iso-ir-138
hebrew
csISOLatinHebrew
ISO-8859-7
ECMA-118
greek
iso-ir-126
csISOLatinGreek
ISO-8859-6
ISO-8859-6-I
ECMA-114
ASMO-708
arabic
iso-ir-127
csISOLatinArabic
ISO-8859-5
cyrillic
iso-ir-144
csISOLatinCyrillic
ISO-8859-4
latin4
iso-ir-110
csISOLatin4
ISO-8859-3
latin3
iso-ir-109
csISOLatin3
ISO-8859-2
latin2
iso-ir-101
csISOLatin2
KOI8-U
KOI8-RU
KOI8-R
csKOI8R
Iscii-Mlm
Iscii-Knd
Iscii-Tlg
Iscii-Tml
Iscii-Ori
Iscii-Gjr
Iscii-Pnj
Iscii-Bng
Iscii-Dev
TSCII

As you can see, for example Big5 or CP950 isn't in the list but is in 
the official qt 4.6 documentations 
http://doc.qt.nokia.com/4.6/qtextcodec.html under detailed descriptions.
If I'm reading correctly. I think none of the Asian countries languages 
charset are listed as available codecs on my system, why is that ?