Skald:
Is Character Entities the same as ISO Entities ? I only ask as jase has previously said ISO Entities were supported, and it looks like Character Entities is a rather large extension on that set. Though I'm blissfully ignorant on the matter and they may very well be one and the same. :>
The more I dig on this subject, the more it seems to be related to HTML and XML. Short answer: it probably depends.
Since what we use here for formatting is a variant/subset of HTML mixed with BBCode (specifically RuBB Code), jase (or any moderator with access to the source code) would have to be the authority concerning what is and is not supported.
Whether we are supporting ISO, UTF, or what could change as time marches on. HTML 4.0, for example, supports UTF-8 by default, where HTML 5 supports both UTF-8 and UTF-16.
In all honesty, after a quick search of the WWW I'm still not sure. I know that ISO defines code pages supporting different languages, and that the Unicode Consortium defines a character set that may have multiple bytes representing one character as a sort of "one ring to rule them all" (and that's a gross oversimplification by way of metaphor)
There's a decent article at:
https://www.ahuka.com/?page_id=121
A more rigorous discussion encompassing all character sets in use in HTML is at:
https://www.w3schools.com/charsets/default.asp
It pertains mainly to HTML, and makes mention of code page selection at the head of an HTML document. This selection line takes the form:
<meta http-equiv=”Content-Type” content=”text/html; charset=iso-8859-1″>
That
charset= parameter defines the character set as ISO 8859-1 (Western Europe aka Latin1 and several other aliases exist, muddying the waters further.)
If, indeed, we are using ISO 8859-1 encoding for RPoL, then the character entities we would have to use would be drawn from that set.
If we are using Unicode, things get a whole lot messier in some respects, and a whole lot clearer in others (at least from my standpoint).
The Unicode character set is freakin' huge! Fortunately, it encapsulates ASCII (which uses one byte to represent each charcter) as the first 127 characters, so ASCII works the same in Unicode. ISO 8859-1 also does this, so ASCII text works the same in all three environments, thank Gawd!