The other Legacy Computing characters unified to existing codepoints (reopening of #2192)

[jmcwilliams403]

Original issue #2192 recovered by #2361 (comment) via an email archive.

The following text is written by @Logo121 , not me.

• The requested characters are ...
  • Latin
  • Cyrillic
  • Greek
  • Punctuation
  • Diacritic / Mark
  • Symbol
• The requested characters are used in ...
  • The alphabet / character set of a natural language.
  • The alphabet / character set of a constructed language.
  • The alphabet / character set of a transliteration or notation system.
  • Mathematical or other professional use in documents.
  • The symbol set of a programming language. For the languages that support using arbitrary symbols, please provide usages in well-known components or libraries.
  • The symbol set of a command-line program.
• Some other monospace/programming fonts supported this character. Provide images below.

---

Here is a list of some more characters in the Legacy Computing charsets that are unified with existing, non-emoji codepoints.

Note that I may have missed some, considering my methodology for searching these character is:

1. Grep all the mapping TXT files attached to the proposal for codepoint-like substrings (hexadecimals with more than 2 digits)
2. Sort and format all of them into a readable format
3. Filter characters (by hand) that are:
   • Out of scope for Iosevka (mostly arabic, japanese and korean characters)
   • Unassigned (or assigned to the new codepoints)
4. Eyeball characters that aren't rendered in Iosevka and pick those characters out

The following I can confirm that are definitely mapped from those charsets because they are in the sources table:

- ☂: UMBRELLA (U+2602)
- ☙: REVERSED ROTATED FLORAL HEART BULLET (U+2619)
- ♟: BLACK CHESS PAWN (U+265F)\r\n- ⛵: SAILBOAT (U+26F5)
- ✈: AIRPLANE (U+2708)\r\n- ⧋: TRIANGLE WITH UNDERBAR (U+29CB)

(black chess pawn is part of #1418, which is eventually needed for the big versions in the supplement block anyway)

These are the extra ones I found:

- ₢: CRUZEIRO SIGN (U+20A2)
- ℞: PRESCRIPTION TAKE (U+211E)
- ⌁: ELECTRIC ARROW (U+2301)
- ⌇: WAVY LINE (U+2307)
- ⌛: HOURGLASS (U+231B)
- ⍻: NOT CHECK MARK (U+237B)
- ⍾: BELL SYMBOL (U+237E)
- ⍿: VERTICAL LINE WITH MIDDLE DOT (U+237F)
- ⎍: MONOSTABLE SYMBOL (U+238D)
- ⎾: DENTISTRY SYMBOL LIGHT VERTICAL AND TOP RIGHT (U+23BE)
- ⏊: DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL (U+23CA)
- ⏌: DENTISTRY SYMBOL LIGHT VERTICAL AND BOTTOM LEFT (U+23CC)
- 〒: POSTAL MARK (U+3012)
- 𝅝: MUSICAL SYMBOL WHOLE NOTE (U+1D15D)
- 𝅗𝅥: MUSICAL SYMBOL HALF NOTE (U+1D15E)
- 𝅘𝅥: MUSICAL SYMBOL QUARTER NOTE (U+1D15F)
- 𝅘𝅥𝅮: MUSICAL SYMBOL EIGHTH NOTE (U+1D160)

(Prescription is also in #714)

The rest are emojis, which is covered mostly by #2136, but there seems to be more characters than those listed:

- 🌳: DECIDUOUS TREE (U+1F333)
- 🍎: RED APPLE (U+1F34E)
- 🍒: CHERRIES (U+1F352)
- 🍓: STRAWBERRY (U+1F353)
- 🍷: WINE GLASS (U+1F377)
- 🏘: HOUSE BUILDINGS (U+1F3D8)
- 🏠: HOUSE BUILDING (U+1F3E0)
- 🏢: OFFICE BUILDING (U+1F3E2)
- 🐍: SNAKE (U+1F40D)
- 👁: EYE (U+1F441)
- 👃: NOSE (U+1F443)
- 💣: BOMB (U+1F4A3)
- 🛧: UP-POINTING AIRPLANE (U+1F6E7)
- 🛸: FLYING SAUCER (U+1F6F8)

Fairfax HD seems to support almost all of them (excluding some like the musical symbols)

[jmcwilliams403]

Closing as @Logo121 's account has been reinstated, so this issue is now a duplicate.