On 12/13/2012 04:29 AM, Peter W A Wood wrote:
According to the User Guide, LiveCode employs UTF-16 encoding:
"LiveCode fields and other controls use the UTF-16 encoding for Unicode. In order to use
Unicode in a field or in the labels of controls, paste in Unicode text, or set the textFont of the
control to ",unicode"."
As I understand, characters beyond the Basic Multilingual Plane occupy two "UTF-16
Characters"
This example is taken from the Mac Character Viewer:
𐅐
GREEK ACROPHONIC ATTIC TEN STATERS
Unicode: U+10150 (U+D800 U+DD50), UTF-8: F0 90 85 90
This worked for me (using LiveCode 5.5.3):
on mouseUp
set the useUnicode to true
set the unicodeText of fld "f1" to numToChar(55296) & numToChar(56656)
end mouseUp
Hope this helps.
Peter
I'm sorry I took so long to get back with this; lots of other stuff on
my plate!
Maybe this is a bit naive; but how does one derive the 2 Hex numbers for
a character beyond the
Basic Multilingual Plane if one knows the Unicode address?
On 13 Dec 2012, at 04:53, Richmond wrote:
So there I am wondering about the higher plains (the svarga-lokas . . . LOL),
so I try
this:
I make a stack with 2 buttons (called 'button 1' and 'button 2' respectively)
and 2 fields (called 'f1' and 'f2' repectively) and put the following code into
button 1:
on mouseUp
set the useUnicode to true
set the unicodeText of fld "f1" to numToChar(65940)
end mouseUp
and when I click on the button I get nothing like anything that should appear
(a capital X with a bar through its middle),
but something that resembles a badly deformed Hebrew 'Ain'.
in button 2 I put the following script:
on mouseUp
set the useUnicode to true
put charToNum(fld"f1") into fld "f2"
end mouseUp
and get "404", which is, indeed a sort of funny 'Ain'.
This would seem to suggest 2 things:
1. RR/LC cannot cope with Unicode addresses above the first plane.
2. RR/LC copes with this by truncating the addresses.
Does anybody know of a work around for this?
[this does not affect my work directly, but does interest me both in terms of
future work, and
relating to the capabilities of RR/LC in general]
Richmond.
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