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Choosing the best way to go full UNICODE [message #48150]

Sat, 27 May 2017 16:58

mirek is currently offline

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Hi,

last week, for the first time, I have encountered a problem caused by presence of characters outside of UCS2 range (did you know that emoji characters have assigned codepoints? I did not either. Yet our www backend was failing because somebody send "thumbs up" in the message... Smile

Smile

So perhaps it is time for full support. The mission target is that these characters are correctly loaded/stored to/from LineEdit, DocEdit, EditString, RichText.

Now I can see 3 paths to achieve this:

(1) Extend WString to 32-bits (so that sizeof(wchar) is 4 bytes). This is the most straightforward and right now my favorite. Downsides is that I am a little bit afraid about backward compatibility and that the performance will be worse than WString. Performance is less of an issue because I believe that in most cases, texts are stored as UTF-8 String anyway, but worth checking.

(2) Add 32-bit LString (or "UString"?) and perhaps deprecate WString. Fixes the problem with compatibility, but fattens the API.

(3) Keep WString and somehow fix things to work with surrogate pairs.

Any thoughts?

Mirek

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[Message index]

		Choosing the best way to go full UNICODE By: mirek on Sat, 27 May 2017 16:58
		Re: Choosing the best way to go full UNICODE By: Zbych on Sat, 27 May 2017 20:02
		Re: Choosing the best way to go full UNICODE By: mirek on Sat, 27 May 2017 20:48
		Re: Choosing the best way to go full UNICODE By: mirek on Sat, 27 May 2017 20:51
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 29 May 2017 14:36
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 29 May 2017 19:40
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 30 May 2017 10:31
		Re: Choosing the best way to go full UNICODE By: mirek on Tue, 30 May 2017 11:03
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 30 May 2017 11:23
		Re: Choosing the best way to go full UNICODE By: mirek on Tue, 30 May 2017 11:45
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 10:30
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 11:00
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 11:30
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 12:07
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 12:26
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 12:40
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 13:12
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 13:20
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 13:43
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 14:41
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 15:06
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 15:25
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 15:34
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 31 May 2017 15:38
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 31 May 2017 15:50
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 05 June 2017 17:51
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 06 June 2017 09:28
		Re: Choosing the best way to go full UNICODE By: mirek on Tue, 06 June 2017 10:41
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 06 June 2017 11:18
		Re: Choosing the best way to go full UNICODE By: mirek on Tue, 06 June 2017 13:21
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 06 June 2017 13:39
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 06 June 2017 13:58
		Re: Choosing the best way to go full UNICODE By: cbpporter on Thu, 08 June 2017 10:00
		Re: Choosing the best way to go full UNICODE By: mirek on Thu, 08 June 2017 10:26
		Re: Choosing the best way to go full UNICODE By: cbpporter on Thu, 08 June 2017 10:43
		Re: Choosing the best way to go full UNICODE By: cbpporter on Thu, 08 June 2017 11:22
		Re: Choosing the best way to go full UNICODE By: cbpporter on Thu, 08 June 2017 13:00
		Re: Choosing the best way to go full UNICODE By: mirek on Sun, 11 June 2017 13:57
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 09:39
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 12 June 2017 10:13
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 10:21
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 12 June 2017 10:28
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 12 June 2017 10:31
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 10:53
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 12 June 2017 10:57
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 11:37
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 12 June 2017 11:41
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 12:50
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 13:06
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 12 June 2017 14:20
		Re: Choosing the best way to go full UNICODE By: cbpporter on Tue, 13 June 2017 16:31
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 14 June 2017 11:07
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 14 June 2017 12:07
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 14 June 2017 12:30
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 14 June 2017 12:42
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 14 June 2017 19:09
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 14 June 2017 23:19
		Re: Choosing the best way to go full UNICODE By: cbpporter on Wed, 14 June 2017 23:31
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 19 June 2017 10:03
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 19 June 2017 10:22
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 19 June 2017 10:40
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 19 June 2017 10:51
		Re: Choosing the best way to go full UNICODE By: mirek on Mon, 19 June 2017 10:58
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 19 June 2017 11:07
		Re: Choosing the best way to go full UNICODE By: cbpporter on Mon, 19 June 2017 10:23
		Re: Choosing the best way to go full UNICODE By: mirek on Wed, 14 June 2017 12:17

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