Bert, Tim,
Thanks, I think I understand the problem now.
A. The default Squeak font does not contain a glyph for the value which was
used to create the character.
B. The question mark character is used as a placeholder for the missing
glyph.
C. There may be a solution using the UnicodePlugin (which is not available
on Mac per Tim's note on the VM list:
                  Apr 18, 2017; 1:07pmAdding build of ScratchPlugin &
UnicodePlugin
D. The NuScratch code is in the "Improved Scratch 1.4 as used on Raspberry
Pi" project at http://www.squeaksource.com/NuScratch.html. and may point in
the direction of an ultimate solution.

I think I will just hack an application specific solution for now. The
biggest reason that $? is a problem for me is because a random ?  in
OSProcess parameter strings causes the VM to lockup. (The string I am using
from the JSON data is embedded in a parameter in a command I execute using
OSProcess)

jrm

On Sat, Nov 25, 2017 at 1:40 PM, Bert Freudenberg <bert at freudenbergs.de>
wrote:

>
> On Sat 25. Nov 2017 at 01:38, John-Reed Maffeo <jrmaffeo at gmail.com> wrote:
>
>> The  problem I am trying to debug occurs in the method #unescapeUnicode
>> while parsing data from a JSON stream at a web address using the JSON
>> package tonyg.39. I have decomposed the problem to a repeatable test case:
>>
>> Unicode value: (Integer readFrom: '2019' readStream base: 16)
>> >> I expect to see a right single quote mark, but a question mark is
>> returned. I have to tried to debug this statement, but I don't understand
>> the code. I also get question marks when I use other decimal numbers: 2000
>> to: 2030 do:[ :each | Transcript show: (Unicode charFromUnicode: each)]
>>
>
> Are you sure the font you are using to display those characters does have
> glyphs for them? Otherwise they will be displayed as question marks.
>
> - Bert -
>
>>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20171125/582d4903/attachment.html>