add ꜛ, ꜜ and ꜝ as operator suffix (JuliaLang#37542)

* add ꜛ, ꜜ and ꜝ as operator suffix * Update NEWS.md tweak wording Co-authored-by: Steven G. Johnson <[email protected]>
inkydragon · Sep 16, 2020 · ebbf55c · ebbf55c
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diff --git a/NEWS.md b/NEWS.md
@@ -13,6 +13,9 @@ New language features
 * The library name passed to `ccall` or `@ccall` can now be an expression involving
  global variables and function calls. The expression will be evaluated the first
  time the `ccall` executes ([#36458]).
+* `ꜛ` (U+A71B), `ꜜ` (U+A71C) and `ꜝ` (U+A71D) can now also be used as operator
+ suffixes. They can be tab-completed from `\^uparrow`, `\^downarrow` and `\^!` in the REPL
+ ([#37542]).
 
 Language changes
 ----------------

diff --git a/src/flisp/julia_opsuffs.h b/src/flisp/julia_opsuffs.h
@@ -122,5 +122,8 @@ static const uint32_t opsuffs[] = {
  0x0000209b, // ₛ
  0x0000209c, // ₜ
  0x00002c7c, // ⱼ
- 0x00002c7d // ⱽ
+ 0x00002c7d, // ⱽ
+ 0x0000a71b, // ꜛ
+ 0x0000a71c, // ꜜ
+ 0x0000a71d // ꜝ
 };
diff --git a/stdlib/REPL/src/latex_symbols.jl b/stdlib/REPL/src/latex_symbols.jl
@@ -183,6 +183,9 @@ const latex_symbols = Dict(
  "\\^phi" => "ᵠ",
  "\\^chi" => "ᵡ",
  "\\^Phi" => "ᶲ",
+ "\\^uparrow" => "ꜛ",
+ "\\^downarrow" => "ꜜ",
+ "\\^!" => "ꜝ",
 
  # Subscripts
  "\\_0" => "₀",

diff --git a/test/syntax.jl b/test/syntax.jl
@@ -2340,3 +2340,5 @@ if isodd(1) && all(iseven(2) for c in ())
 else
  @test false
 end
+
+@test :(a +ꜝ b) == Expr(:call, :+ꜝ, :a, :b)