Add position aliases.

src/args.jl

@@ -159,6 +159,21 @@ const _markerAliases = Dict{Symbol,Symbol}(
     :spike        => :vline,
 )
 
+const _positionAliases = Dict{Symbol,Symbol}(
+    :top_left      => :topleft,
+    :tl            => :topleft,
+    :top_center    => :topcenter,
+    :tc            => :topcenter,
+    :top_right     => :topright,
+    :tr            => :topright,
+    :bottom_left   => :bottomleft,
+    :bl            => :bottomleft,
+    :bottom_center => :bottomcenter,
+    :bc            => :bottomcenter,
+    :bottom_right  => :bottomright,
+    :br            => :bottomright,
+)
+
 const _allScales = [:identity, :ln, :log2, :log10, :asinh, :sqrt]
 const _logScales = [:ln, :log2, :log10]
 const _logScaleBases = Dict(:ln => e, :log2 => 2.0, :log10 => 10.0)

src/components.jl

@@ -557,6 +557,7 @@ function process_annotation(sp::Subplot, positions::Union{AVec{Symbol},Symbol},
     positions, labs = makevec(positions), makevec(labs)
     for i in 1:max(length(positions), length(labs))
         pos, lab = _cycle(positions, i), _cycle(labs, i)
+        pos = get(_positionAliases, pos, pos)
         if lab == :auto
             alphabet = "abcdefghijklmnopqrstuvwxyz"
             push!(anns, (pos, text(string("(", alphabet[sp[:subplot_index]], ")"), font)))
@@ -570,12 +571,12 @@ end
 # Give each annotation coordinates based on specified position
 function locate_annotation(sp::Subplot, pos::Symbol, lab::PlotText)
     position_multiplier = Dict{Symbol, Tuple{Float64,Float64}}(
-        :top_left => (0.1, 0.9),
-        :top_center => (0.5, 0.9),
-        :top_right => (0.9, 0.9),
-        :bottom_right => (0.9, 0.1),
-        :bottom_left => (0.1, 0.9),
-        :bottom_center => (0.5,0.1),
+        :topleft       => (0.1, 0.9),
+        :topcenter     => (0.5, 0.9),
+        :topright      => (0.9, 0.9),
+        :bottomleft    => (0.1, 0.1),
+        :bottomcenter  => (0.5, 0.1),
+        :bottomright   => (0.9, 0.1),
     )
     xmin, xmax = ignorenan_extrema(sp[:xaxis])
     ymin, ymax = ignorenan_extrema(sp[:yaxis])