Heavy ASCII/Latin-1 Operators

[jmcwilliams403]

• The requested characters are ...
  • [ ] Latin
  • [ ] Cyrillic
  • [ ] Greek
  • [x] Punctuation
  • [ ] Diacritic / Mark
  • [x] 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.
• [x] Some other monospace/programming fonts supported this character. Provide images below.

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U+2753, U+2757, U+2795..U+2797, U+1F7F0, U+1F674.

❓❗➕➖➗🟰🙴

Julia Mono: Fairfax HD (last character missing): Everson Mono (last two characters missing):

Additionally there is also 💲 (U+1F4B2) shown here in the Unicode sheets for lack of a better example:

[be5invis]

These are mostly used as Emojis I think? Are there any active use them in PLs or technical documents?

[jmcwilliams403]

The heavy ❓/❗/➕/➖/➗ predate emoji, and in fact the latter three (as well as 🟰) all go with the already-supported heavy ✖ (U+2716). the heavy 🙴 isn't included in the emoji spec and has no standardized emoji variant. The only one of this that could be considered emoji-first is the heavy 💲.

There exists a Swift tutorial about Unicode operator overloading using multiple of these heavy operators at Medium, however the full article requires an account.

[jmcwilliams403]

Additionally, Unicode themselves recognizes and uses operator overloading of these characters for in regex according to Standard Annex D–F of tr18