On Friday, 8 April 2022 at 08:36:33 UTC, Ali Çehreli wrote:
On 4/7/22 23:13, anonymous wrote:
> What's the proper way to output all characters in the
extended character
> set?
It is not easy to answer because there are a number of concepts
here that may make it trivial or complicated.
The configuration of the output device matters. Is it set to
Windows-1252 or are you using Unicode strings in Python?
I'm running Ubuntu and my default language is en_US.UTF-8.
>
> ```d
> void main()
> {
> foreach(char c; 0 .. 256)
'char' is wrong there because 'char' has a very special meaning
in D: A UTF-8 code unit. Not a full Unicode character in many
cases, especially in the "extended" set.
I think your problem will be solved simply by replacing 'char'
with 'dchar' there:
foreach (dchar c; ...
I tried that. It didn't work.
However, isControl() below won't work because isControl() only
knows about the ASCII table. It would miss the unprintable
characters above 127.
> {
> write(isControl(c) ? '.' : c);
> }
> }
> ```
Oh okay, that may have been the reason.
This works:
import std.stdio;
bool isPrintableLatin1(dchar value) {
if (value < 32) {
return false;
}
if (value > 126 && value < 161) {
return false;
}
return true;
}
void main() {
foreach (dchar c; 0 .. 256) {
write(isPrintableLatin1(c) ? c : '.');
}
Nope... running this code, I get a bunch of digits as the output.
The dot's don't even show up. Maybe I'm drunk or lacking sleep.
Weird, I got this strange feeling that this problem stemmed from
the compiler I'm using (GDC) so I installed DMD. Would you
believe everything worked fine afterwords? To include the
original version where I used isControl and 'dchar' instead of
'char'. I wonder why that is?
Thanks Ali.
