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Posted to c-dev@xerces.apache.org by Markus Volberg <Ma...@gmx.de> on 2001/09/27 12:54:50 UTC
XMLCH Doc
Hello,
I am new to Xerces and I have a problem:
Where is the XMLCh Class documented? It's not in the api (alphabetical list)
and I coundn't find it anywhere else. I am using the latest version 1.5.1 on
a windows platform.
Thank you.
(I hope this is the right place to ask these questions ...)
Markus Volberg
--
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net
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Re: XMLCH Doc
Posted by Dean Roddey <dr...@charmedquark.com>.
Actually, I'm just striking out all over today. It couldn't be moved up to
XercesDefs.hpp because the other reason it was per-compiler is so that those
compilers that are actually up to date (and those who aren't know who they
are) can typedef to their unique wchar_t type if its UTF-16. Otherwise, they
have to use whatever comes out to be an unsigned 16 bit value.
--------------------------
Dean Roddey
The Charmed Quark Controller
Charmed Quark Software
droddey@charmedquark.com
http://www.charmedquark.com
"If it don't have a control port, don't buy it!"
----- Original Message -----
From: "Dean Roddey" <dr...@charmedquark.com>
To: <xe...@xml.apache.org>
Sent: Thursday, September 27, 2001 1:53 PM
Subject: Re: XMLCH Doc
> Sorry, I meant compiler, not platform.
>
> --------------------------
> Dean Roddey
> The Charmed Quark Controller
> Charmed Quark Software
> droddey@charmedquark.com
> http://www.charmedquark.com
>
> "If it don't have a control port, don't buy it!"
>
>
> ----- Original Message -----
> From: "Dean Roddey" <dr...@charmedquark.com>
> To: <xe...@xml.apache.org>
> Sent: Thursday, September 27, 2001 1:50 PM
> Subject: Re: XMLCH Doc
>
>
> > Its not a class, its a typedef and just represents a Unicode character
in
> > Xerces. It is defined in each platform driver's headers. The reason for
> this
> > is historical, in that it used to support multiple formats for XMLCh (to
> > whatever was native Unicode on that platform), but that's no longer true
> and
> > UTF-16 is always used period. So it could be moved up to XercesDefs.hpp
> now,
> > if that hasn't already been done.
> >
> > --------------------------
> > Dean Roddey
> > The Charmed Quark Controller
> > Charmed Quark Software
> > droddey@charmedquark.com
> > http://www.charmedquark.com
> >
> > "If it don't have a control port, don't buy it!"
> >
> >
> > ----- Original Message -----
> > From: "Markus Volberg" <Ma...@gmx.de>
> > To: <xe...@xml.apache.org>
> > Sent: Thursday, September 27, 2001 3:54 AM
> > Subject: XMLCH Doc
> >
> >
> > > Hello,
> > >
> > > I am new to Xerces and I have a problem:
> > > Where is the XMLCh Class documented? It's not in the api (alphabetical
> > list)
> > > and I coundn't find it anywhere else. I am using the latest version
> 1.5.1
> > on
> > > a windows platform.
> > > Thank you.
> > > (I hope this is the right place to ask these questions ...)
> > >
> > > Markus Volberg
> > >
> > > --
> > > GMX - Die Kommunikationsplattform im Internet.
> > > http://www.gmx.net
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> >
>
>
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> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
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>
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Re: XMLCH Doc
Posted by Dean Roddey <dr...@charmedquark.com>.
Sorry, I meant compiler, not platform.
--------------------------
Dean Roddey
The Charmed Quark Controller
Charmed Quark Software
droddey@charmedquark.com
http://www.charmedquark.com
"If it don't have a control port, don't buy it!"
----- Original Message -----
From: "Dean Roddey" <dr...@charmedquark.com>
To: <xe...@xml.apache.org>
Sent: Thursday, September 27, 2001 1:50 PM
Subject: Re: XMLCH Doc
> Its not a class, its a typedef and just represents a Unicode character in
> Xerces. It is defined in each platform driver's headers. The reason for
this
> is historical, in that it used to support multiple formats for XMLCh (to
> whatever was native Unicode on that platform), but that's no longer true
and
> UTF-16 is always used period. So it could be moved up to XercesDefs.hpp
now,
> if that hasn't already been done.
>
> --------------------------
> Dean Roddey
> The Charmed Quark Controller
> Charmed Quark Software
> droddey@charmedquark.com
> http://www.charmedquark.com
>
> "If it don't have a control port, don't buy it!"
>
>
> ----- Original Message -----
> From: "Markus Volberg" <Ma...@gmx.de>
> To: <xe...@xml.apache.org>
> Sent: Thursday, September 27, 2001 3:54 AM
> Subject: XMLCH Doc
>
>
> > Hello,
> >
> > I am new to Xerces and I have a problem:
> > Where is the XMLCh Class documented? It's not in the api (alphabetical
> list)
> > and I coundn't find it anywhere else. I am using the latest version
1.5.1
> on
> > a windows platform.
> > Thank you.
> > (I hope this is the right place to ask these questions ...)
> >
> > Markus Volberg
> >
> > --
> > GMX - Die Kommunikationsplattform im Internet.
> > http://www.gmx.net
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
---------------------------------------------------------------------
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Re: XMLCH Doc
Posted by Dean Roddey <dr...@charmedquark.com>.
Its not a class, its a typedef and just represents a Unicode character in
Xerces. It is defined in each platform driver's headers. The reason for this
is historical, in that it used to support multiple formats for XMLCh (to
whatever was native Unicode on that platform), but that's no longer true and
UTF-16 is always used period. So it could be moved up to XercesDefs.hpp now,
if that hasn't already been done.
--------------------------
Dean Roddey
The Charmed Quark Controller
Charmed Quark Software
droddey@charmedquark.com
http://www.charmedquark.com
"If it don't have a control port, don't buy it!"
----- Original Message -----
From: "Markus Volberg" <Ma...@gmx.de>
To: <xe...@xml.apache.org>
Sent: Thursday, September 27, 2001 3:54 AM
Subject: XMLCH Doc
> Hello,
>
> I am new to Xerces and I have a problem:
> Where is the XMLCh Class documented? It's not in the api (alphabetical
list)
> and I coundn't find it anywhere else. I am using the latest version 1.5.1
on
> a windows platform.
> Thank you.
> (I hope this is the right place to ask these questions ...)
>
> Markus Volberg
>
> --
> GMX - Die Kommunikationsplattform im Internet.
> http://www.gmx.net
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
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Re: XMLCH Doc
Posted by Jerry Carter <je...@speechworks.com>.
At 12:54 PM 27-09-01 +0200, Markus Volberg wrote:
>Hello,
>
>I am new to Xerces and I have a problem:
>Where is the XMLCh Class documented? It's not in the api (alphabetical list)
>and I coundn't find it anywhere else. I am using the latest version 1.5.1 on
>a windows platform.
XMLCh is a simple typedef (not a class). You can find in defined for each
compiler in the src/util/Compilers directory.
To preempt a few questions, XMLCh
* is generally typedef'ed to 'unsigned short'
* needs to be able to hold 16 bits of information
* is not identical to wchar_t on all platforms
Internally, Xerces uses UTF-16 encoding (for more info see
http://www.unicode.org/unicode/faq/utf_bom.html#6). Different platforms
have different represenations of wide characters (see
http://xml.apache.org/xerces-c/build-misc.html#faq-5) and some conversion
may be necessary. Depending on your needs, the XMLString::transcode
function may be appropriate.
-=- Jerry Carter
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