Woods wrote:A couple of Google links I opened suggested I download a .ttf file and install it through an app, or root the device. The latter is not something I'm going to do, I can look into the former, but shouldn't it work out of the box if the characters are included in UniCode or there are certain sets that don't?
It depends on the font that you are using.
Woods wrote:OiJoua wrote:You phone probably doesn't support the CJK extensions.
Chinese, Japanese and Korean work without fail though.
Not Chinese, Japanese and Korean. CJK
extensions. The Chữ Nôm characters are part of CJK Extension B. Not supported by every font.
For example, the Wikipedia article that you mentioned has a secton about Computer Encoding. It says
About half of these glyphs are specific to Vietnam.[86] Nôm characters not already encoded were added to CJK Unified Ideographs Extension B.[86] (These characters have five-digit hexadecimal code points. The characters that were encoded earlier have four-digit hex.)
and
The character (chàu) is specific to the Tày people.[91] It has been part of the Unicode standard only since version 8.0 of June 2015, so there is still very little font and input method support for it.
That is for the Tày language. So it's just an example to show that just because something is part of Unicode standard it doesn't mean your font will support. The same problem happens to Vietnamese Chữ Nôm characters and other character sets that aren't commonly used in computer writing. And yes it happened to me too, I got the same message for the character (chàu) "Your message contains the following unsupported characters" until I deleted it.
Now if you go to the linked Wikipedia article for
Tày language, or many other articles, at the bottom of the summary box it says
This article contains IPA phonetic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode characters. For an introductory guide on IPA symbols, see Help:IPA.
More information here:
Help: Multilingual SupportTo be able to correctly view and edit these articles requires that you have the appropriate fonts installed and to have correctly configured your operating system and browser. This guide will help you to do so.
This is the same issue. It depend on what font you have. It's normal. I think Hanazono font is one that works for Chữ Nôm but I don't have it either. When you see suggestions about ttf files, this is what they mean. It means to install a font that supports the CJK extensions or whatever the characters that you need. If you don't have it, you get boxes. It still won't work in some places if you post somewhere (like this board) that doesn't support it either, even if YOU have the font installed. It's not something to take personal against you, its just limits of technology. Maybe when the fonts you use were created, these characters hadn't been added to Unicode yet, or the creater of the font think no one using this font will want to use Chữ Nôm characters. So the font set doesn't "know" they exist and doesn't know how to display them. It's happens to some other writing systems too even though they have Unicode already. It's one reason some languages prefer to use Romanized alphabet letters instead of invent their own unique ones. It's a strong advantage.