Update

Project.toml

@@ -1,7 +1,7 @@
 name = "Exts"
 uuid = "0b12d779-4123-4875-9d6c-e33c2e29e2c9"
 authors = ["Heptazhou <zhou at 0h7z dot com>"]
-version = "0.1.0"
+version = "0.1.1"
 
 [deps]
 DelimitedFiles = "8bb1440f-4735-579b-a4ab-409b98df4dab"

src/BaseExt.jl

@@ -28,6 +28,13 @@ function Base.adjoint(m::T)::AbstractMatrix{<:AbstractString} where T <: Abstrac
 	permutedims(m)
 end
 
+function Base.convert(::Type{S}, v::AbstractVector) where S <: AbstractSet
+	S(eltype(S)[v;])
+end
+function Base.convert(::Type{S}, v::AbstractVector) where S <: AbstractSet{T} where T
+	S(T[v;])
+end
+
 function Base.log10(x::T, σ::T) where T <: Real
 	# https://physics.stackexchange.com/q/95254
 	log10(x), σ / log(10)x

src/Exts.jl

@@ -15,8 +15,11 @@
 
 module Exts
 
+export getfirst
+export getlast
 export invsqrt
 export nanmean
+export readstr
 
 using Reexport: @reexport
 
@@ -25,6 +28,14 @@ using Reexport: @reexport
 
 include("BaseExt.jl")
 
+getfirst(predicate::Function, A) = A[findfirst(predicate, A)]
+getfirst(predicate::Function)    = Base.Fix1(getfirst, predicate)
+
+getlast(predicate::Function, A) = A[findlast(predicate, A)]
+getlast(predicate::Function)    = Base.Fix1(getlast, predicate)
+
+readstr(x)::String = read(x, String)
+
 function invsqrt(x::T) where T <: Real
 	F::Type = float(T)
 	F(big(x) |> inv |> sqrt)

test/runtests.jl

@@ -16,15 +16,20 @@
 using Test
 
 @testset "BaseExt" begin
+	@test_throws MethodError convert(Set, 1:3)
+	@test_throws MethodError convert(Set{Int}, 1:3)
 	@test_throws MethodError log10(11, 2)
 	@test_throws MethodError repr([:a, 1]')
 	@test_throws UndefVarError invsqrt(1.0)
+	@test_throws UndefVarError readstr(@__FILE__)
 	using Exts
 
 	@test [:_ -1] == [:_, -1]'
 	@test [:p :q] == [:p, :q]'
 	@test ['1' '2'] == ['1', '2']'
 	@test ["x" "y"] == ["x", "y"]'
+	@test chomp(readstr(@__FILE__)) == readchomp(@__FILE__)
+	@test convert(Set{Int}, 1:3) == convert(Set, 1:3) == Set(1:3)
 	@test invsqrt(2^-2) == 2
 	@test_nowarn log10(11, 2)
 end