U++ forum: Welcome to the forum

Status & Roadmap

Authors & License

Funding Ultimate++

Search on this site

Search in forums

Home » U++ Library support » U++ Libraries and TheIDE: i18n, Unicode and Internationalization » 16 bits wchar

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Return to the default flat view

Create a new topic

Submit Reply

Re: 16 bits wchar [message #12140 is a reply to message #12138]

Fri, 12 October 2007 13:54

cbpporter is currently offline

cbpporter
Messages: 1427
Registered: September 2007

Ultimate Contributor

luzr wrote on Fri, 12 October 2007 11:59

P.S.: Really, more and more we are dealing with this, more and more it is apparent that the real solution is

typedef int32 wchar

Yes, these conversions are tricky, but can be done. If you use wchar as a 32-bit value, that would simplify things as in you only need two conversion functions to UCS4 and back, and all the fuss could be ignored. This would be a great idea for GUI. But if I can create some useful things for other standards too and you don't mind including them, I don't know why we shouldn't do it.

luzr wrote on Fri, 12 October 2007 11:59

Anyway, what might be a good idea for now is Utf8 <-> Utf16 conversion utilities, what do you think?

After I finish my round-trip conversion code, I'll get right to it.

luzr wrote on Fri, 12 October 2007 11:59

Also interesting question: While longer UTF-8 sequences are invalid, would not be actually a good idea to accept them as a form of error-escapement? I can imagine a couple of scenarious where this might be very useful... E.g. what are we supposed to to with invalid UCS-4 values after all?

Yes, that would also be a good alternative. I choose the EExx encoding out of two reasons:
1. You already use this approach.
2. Private code-units are more unlikely to be found in exterior sources than overlong sequences, but I guess this depends a lot on circumstances. And as for invalid UCS-4, there are only single surrogate pairs and a couple more values, I'm sure we can find a good place for them somewhere in the private planes (0x0EExxx for example).

And can I use exceptions in these conversion routines?

I really need to document myself on the differences between UCS4 and UTF32.

Report message to a moderator

Send a private message to this user

[Message index]

		16 bits wchar By: riri on Mon, 05 February 2007 17:19
		Re: 16 bits wchar By: mirek on Mon, 05 February 2007 23:07
		Re: 16 bits wchar By: cbpporter on Tue, 25 September 2007 22:03
		Re: 16 bits wchar By: mirek on Tue, 25 September 2007 23:18
		Re: 16 bits wchar By: cbpporter on Wed, 26 September 2007 07:43
		Re: 16 bits wchar By: mirek on Wed, 26 September 2007 08:48
		Re: 16 bits wchar By: sergei on Wed, 26 September 2007 14:55
		Re: 16 bits wchar By: cbpporter on Wed, 26 September 2007 15:37
		Re: 16 bits wchar By: mirek on Wed, 26 September 2007 22:40
		Re: 16 bits wchar By: cbpporter on Mon, 01 October 2007 13:24
		Re: 16 bits wchar By: mirek on Mon, 01 October 2007 14:28
		Re: 16 bits wchar By: cbpporter on Wed, 03 October 2007 06:16
		Re: 16 bits wchar By: mirek on Wed, 03 October 2007 10:11
		Re: 16 bits wchar By: cbpporter on Wed, 03 October 2007 10:23
		Re: 16 bits wchar By: mirek on Wed, 03 October 2007 10:42
		Re: 16 bits wchar By: mirek on Wed, 03 October 2007 10:26
		Re: 16 bits wchar By: cbpporter on Wed, 03 October 2007 10:36
		Re: 16 bits wchar By: mirek on Wed, 03 October 2007 12:10
		Re: 16 bits wchar By: cbpporter on Wed, 03 October 2007 14:43
		Re: 16 bits wchar By: mirek on Wed, 03 October 2007 21:40
		Re: 16 bits wchar By: cbpporter on Thu, 04 October 2007 13:15
		Re: 16 bits wchar By: mirek on Thu, 04 October 2007 17:33
		Re: 16 bits wchar By: cbpporter on Thu, 04 October 2007 19:49
		Re: 16 bits wchar By: cbpporter on Fri, 12 October 2007 10:25
		Re: 16 bits wchar By: cbpporter on Fri, 12 October 2007 11:27
		Re: 16 bits wchar By: mirek on Fri, 12 October 2007 11:52
		Re: 16 bits wchar By: mirek on Fri, 12 October 2007 11:59
		Re: 16 bits wchar By: cbpporter on Fri, 12 October 2007 13:54
		Re: 16 bits wchar By: cbpporter on Fri, 12 October 2007 16:25
		Re: 16 bits wchar By: mirek on Fri, 12 October 2007 17:03
		Re: 16 bits wchar By: cbpporter on Mon, 15 October 2007 15:01
		Re: 16 bits wchar By: cbpporter on Mon, 15 October 2007 16:49
		Re: 16 bits wchar By: cbpporter on Tue, 16 October 2007 11:13
		Re: 16 bits wchar By: mirek on Sun, 21 October 2007 20:19
		Re: 16 bits wchar By: cbpporter on Sun, 21 October 2007 23:46
		Re: 16 bits wchar By: mirek on Sun, 21 October 2007 23:57
		Re: 16 bits wchar By: cbpporter on Mon, 22 October 2007 09:34
		Re: 16 bits wchar By: mirek on Mon, 22 October 2007 10:47
		Re: 16 bits wchar By: cbpporter on Mon, 22 October 2007 17:57
		Re: 16 bits wchar By: mirek on Mon, 22 October 2007 19:37
		Re: 16 bits wchar By: mirek on Sun, 21 October 2007 20:14
		Re: 16 bits wchar By: sergei on Wed, 26 September 2007 01:56
		Re: 16 bits wchar By: sergei on Wed, 26 September 2007 16:54
		Re: 16 bits wchar By: cbpporter on Wed, 26 September 2007 19:11
		Re: 16 bits wchar By: cbpporter on Wed, 24 October 2007 11:58
		Re: 16 bits wchar By: mirek on Wed, 24 October 2007 13:27
		Re: 16 bits wchar By: cbpporter on Wed, 24 October 2007 14:05
		Re: 16 bits wchar By: cbpporter on Thu, 25 October 2007 14:47
		Re: 16 bits wchar By: mirek on Sat, 27 October 2007 11:11
		Re: 16 bits wchar By: cbpporter on Tue, 06 November 2007 13:31
		Re: 16 bits wchar By: mirek on Fri, 09 November 2007 10:39
		Re: 16 bits wchar By: cbpporter on Sat, 10 November 2007 17:34
		Re: 16 bits wchar By: mirek on Sun, 11 November 2007 18:45
		Re: 16 bits wchar By: cbpporter on Fri, 04 July 2008 17:12
		Re: 16 bits wchar By: cbpporter on Wed, 23 July 2008 15:22
		Re: 16 bits wchar By: mirek on Wed, 23 July 2008 22:04
		Re: 16 bits wchar By: cbpporter on Sat, 02 August 2008 13:27
		Re: 16 bits wchar By: cbpporter on Sat, 02 August 2008 18:34
		Re: 16 bits wchar By: cbpporter on Sat, 02 August 2008 19:01
		Re: 16 bits wchar By: cbpporter on Sun, 03 August 2008 14:51
		Re: 16 bits wchar By: mirek on Mon, 04 August 2008 15:07
		Re: 16 bits wchar By: cbpporter on Mon, 04 August 2008 15:53
		Re: 16 bits wchar By: mirek on Mon, 04 August 2008 17:14
		Re: 16 bits wchar By: cbpporter on Mon, 04 August 2008 22:47
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 00:03
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 00:12
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 00:14
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 00:18
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 00:20
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 00:24
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 00:26
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 00:32
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 00:51
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 10:42
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 12:03
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 15:12
		Re: 16 bits wchar By: mirek on Tue, 05 August 2008 15:19
		Re: 16 bits wchar By: cbpporter on Tue, 05 August 2008 15:57
		Re: 16 bits wchar By: cbpporter on Wed, 06 August 2008 13:33
		Re: 16 bits wchar By: cbpporter on Thu, 07 August 2008 08:41
		Re: 16 bits wchar By: mirek on Thu, 07 August 2008 16:10
		Re: 16 bits wchar By: cbpporter on Thu, 07 August 2008 17:33
		Re: 16 bits wchar By: mirek on Thu, 07 August 2008 17:40
		Re: 16 bits wchar By: cbpporter on Thu, 07 August 2008 18:37
		Re: 16 bits wchar By: mirek on Thu, 07 August 2008 20:01
		Re: 16 bits wchar By: cbpporter on Fri, 08 August 2008 13:34
		Re: 16 bits wchar By: mirek on Fri, 08 August 2008 15:32
		Re: 16 bits wchar By: cbpporter on Fri, 08 August 2008 15:47
		Re: 16 bits wchar By: mirek on Fri, 08 August 2008 18:25
		Re: 16 bits wchar By: cbpporter on Sat, 09 August 2008 01:45
		Re: 16 bits wchar By: cbpporter on Fri, 05 September 2008 19:13
		Re: 16 bits wchar By: mirek on Sun, 07 September 2008 13:24
		Re: 16 bits wchar By: mirek on Mon, 04 August 2008 15:03
		Re: 16 bits wchar By: mirek on Sat, 27 October 2007 11:01

Previous Topic:	Arabic words from file
Next Topic:	Not possible to get .t files

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

PDF

]

Current Time: Mon Jul 07 12:46:33 CEST 2025

Total time taken to generate the page: 0.03460 seconds