@lm oh it's a whole blog post now https://ionathan.ch/2022/04/09/angzarr.html

@clacke I was browsing through the entire Miscellaneous Technical lol

@clacke what's the parser tutorial?

wait STIX is part of AMS. STIX references the ISO standard for the character but the ISO standard lists AMS-A as the source so I no longer know anymore

The only LaTeX package that has the symbol is stix https://www.ctan.org/pkg/stix which was created in 2001 and calls it \rangledownzigzagarrow and I couldn't find it in amsmath or amstex so I have a feeling that even though the character is under ISO AMS-A I don't think it's actually from the AMS

See the problem is that the ISO standards might list the characters but they don't give explanations for what they're supposed to mean, AND ISO isn't very... open so they don't give things like proposal documents and meeting minutes like Unicode does, so it's hard to track down something that suddenly appears in an ISO standard
They're basically dead ends

https://www.jtc1sc34.org/repository/sc34old.htm here we go. I'll have to look through all of the links when I'm on desktop

Ok I was wrong. There are publicly available minutes and proposal comments and whatnot, like this https://www.jtc1sc34.org/repository/0601.htm but it seems rather hard to search for them unless you have the write keywords to google...

"(JTC 1 June 1998 Resolution 19 Disbandment of JTC 1/WG 4 and Establishment of a New Subcommittee 34) This new SC will operate in the Technical Direction - Document Description Languages - with the following title and scope:"

oh it used to be a different working group in charge of this I guess

okay so ISO says the subcommittee in charge of this tech report is ISO/IEC JTC 1/SC 34 but I'm looking at their documents and they only go back to 1998 when the original TR was published in 1991
what gives

https://en.wikipedia.org/wiki/ISO/IEC_JTC_1 it's not listed among the working groups here
suspicioius

https://www.iso.org/committee/45020.html
WG 4 isn't even listed... I guess they don't list disbanded groups

there's no SC 18 💀

"ISO/IEC/JTC 1/WG 4 (formerly ISO/IEC/JTC 1/SC 18/WG 8)"

AHA

what is up with references to subcommittees and working groups that do not exist

"a glyph identifier, registered in accordance with ISO/IEC 10036"

I guess it's time to hunt that one down now :mario_flop:

YOOOO I got access to ISO/IEC TR 9573-13:1991

The 1993 version only has 13 pages! What is IN it

It's only 17 pages
Impossible that it contains all those glyphs

I think I may need to ask for TR 9573 as well, not just part 13