This was meant to go to the list. From: Peter Constable Sent: Monday, August 27, 2018 12:33 PM To: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected] Subject: RE: Private Use areas
That sounds like a non-conformant use of characters in the U+24xx block. Peter From: Unicode <[email protected]<mailto:[email protected]>> On Behalf Of William_J_G Overington via Unicode Sent: Monday, August 27, 2018 2:00 AM To: [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]> Subject: Re: Private Use areas Hi How about the following method. In a text file that contains text that uses Private Use Area characters, start the file with a sequence of Enclosed Alphanumeric characters from regular Unicode, that sequence containing the metadata relating to those Private Use Area characters as used in their present context. http://www.unicode.org/charts/PDF/U2460.pdf Use circled digits U+24EA, U+2460 .. U+2469, and Circled Latin letters U+24B6 .. U+24E9. Use U+2473 as if it were a circled space. The use of 20 to mean a space often occurs in web addresses. I know that there it is hexadecimal and here it is decimal but it has the same look of being an encoded space and so that is why I am suggesting using it. Start the sequence with PUAINFO encoded using seven circled Latin letters and any character other than a carriage return or a line feed shows that the sequence has ended. The use of PUAINFO encoded using seven circled Latin letters at the start of the sequence is so that text using enclosed alphanumeric characters for another purpose would not become disrupted. Then a suitable software application can read the text file and then, either automatically or after the clicking of a button, extract metadata information from the sequence of enclosed alphanumeric characters and not display the sequence of enclosed alphanumeric characters. Maybe other circled numbers in the range 10 through to 19 would have special meanings. This method would keep everything within plane zero. William Overington Monday 27 August 2018 ----Original message---- From : [email protected]<mailto:[email protected]> Date : 2018/08/21 - 23:23 (GMTDT) To : [email protected]<mailto:[email protected]> Cc : [email protected]<mailto:[email protected]> Subject : Re: Private Use areas On Tue, Aug 21, 2018 at 3:02 PM Doug Ewell via Unicode <[email protected]<mailto:[email protected]>> wrote: Ken Whistler wrote: > The way forward for folks who want to do this kind thing is: > > 1. Define a *protocol* for reliable interchange of custom character > property information about PUA code points. I've often thought that would be a great idea. You can't get to steps 2 and 3 without step 1. I'd gladly participate in such a project. As would I.
