Add ASCII alias compose of ∘ (JuliaLang/julia#33573)

Author: tkf

README.md

@@ -63,6 +63,8 @@ Currently, the `@compat` macro supports the following syntaxes:
 
 * `merge` methods with one and `n` `NamedTuple`s ([#29259]).
 
+* Function composition `∘` now has an ASCII alias `compose` ([#33573]).
+
 ## Renaming
 
 ## New macros
@@ -131,3 +133,4 @@ includes this fix. Find the minimum version from there.
 [#32628]: https://github.com/JuliaLang/julia/issues/32628
 [#33129]: https://github.com/JuliaLang/julia/issues/33129
 [#33568]: https://github.com/JuliaLang/julia/pull/33568
+[#33573]: https://github.com/JuliaLang/julia/pull/33573

src/Compat.jl

@@ -93,6 +93,12 @@ if VERSION < v"1.4.0-DEV.329"
     Base.:∘(f, g, h...) = ∘(f ∘ g, h...)
 end
 
+# https://github.com/JuliaLang/julia/pull/33573
+if VERSION < v"1.4.0-DEV.330"
+    export compose
+    const compose = ∘
+end
+
 include("deprecated.jl")
 
 end # module Compat

test/runtests.jl

@@ -91,10 +91,12 @@ end
 end
 
 # https://github.com/JuliaLang/julia/pull/33568
+# https://github.com/JuliaLang/julia/pull/33573
 @testset "function composition" begin
     @test ∘(x -> x-2, x -> x-3, x -> x+5)(7) == 7
     fs = [x -> x[1:2], uppercase, lowercase]
     @test ∘(fs...)("ABC") == "AB"
+    @test ∘(fs...) === compose(fs...)
 end
 
 nothing