Remove the dependency on Compat

It's a post 1.0 world!

Author: c42f

Project.toml

@@ -3,14 +3,12 @@ uuid = "39de3d68-74b9-583c-8d2d-e117c070f3a9"
 version = "0.3.0"
 
 [deps]
-Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 IntervalSets = "8197267c-284f-5f27-9208-e0e47529a953"
 IterTools = "c8e1da08-722c-5040-9ed9-7db0dc04731e"
 RangeArrays = "b3c3ace0-ae52-54e7-9d0b-2c1406fd6b9d"
 
 [compat]
-Compat = "≥ 0.61.0"
 IntervalSets = "≥ 0.1.0"
 Unitful = "≥ 0.2.6"
 julia = "≥ 0.7.0"

docs/Project.toml

@@ -4,5 +4,5 @@ Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
-Documenter = "~0.19"
+Documenter = "~0.22"
 Unitful = "≥ 0.2.6"

src/AxisArrays.jl

@@ -6,7 +6,6 @@ using Base: tail
 import Base.Iterators: repeated
 using RangeArrays, IntervalSets
 using IterTools
-using Compat
 using Dates
 
 function axes end

src/core.jl

@@ -280,7 +280,7 @@ end
 function axisdim(::Type{AxisArray{T,N,D,Ax}}, ::Type{<:Axis{name,S} where S}) where {T,N,D,Ax,name}
     isa(name, Int) && return name <= N ? name : error("axis $name greater than array dimensionality $N")
     names = axisnames(Ax)
-    idx = Compat.findfirst(isequal(name), names)
+    idx = findfirst(isequal(name), names)
     idx === nothing && error("axis $name not found in array axes $names")
     idx
 end

src/indexing.jl

@@ -286,13 +286,13 @@ end
 
 # Categorical axes may be indexed by their elements
 function axisindexes(::Type{Categorical}, ax::AbstractVector, idx)
-    i = Compat.findfirst(isequal(idx), ax)
+    i = findfirst(isequal(idx), ax)
     i === nothing && throw(ArgumentError("index $idx not found"))
     i
 end
 function axisindexes(::Type{Categorical}, ax::AbstractVector, idx::Value)
     val = idx.val
-    i = Compat.findfirst(isequal(val), ax)
+    i = findfirst(isequal(val), ax)
     i === nothing && throw(ArgumentError("index $val not found"))
     i
 end