correct quoting of Measurements

Author: simeonschaub

src/show.jl

@@ -79,6 +79,17 @@ function Base.alignment(io::IO, measure::Measurement)
         (length(m.captures[1]), length(m.captures[2]))
 end
 
+# correct quoting
+function Base.show_unquoted(io::IO, z::Measurement, ::Int, prec::Int)
+    if Base.operator_precedence(:±) <= prec
+        print(io, "(")
+        show(io, z)
+        print(io, ")")
+    else
+        show(io, z)
+    end
+end
+
 ### Juno pretty printing
 @require Juno="e5e0dc1b-0480-54bc-9374-aad01c23163d" begin
     Juno.render(i::Juno.Inline, measure::Measurement) =

test/runtests.jl

@@ -578,7 +578,11 @@ end
     @test Base.alignment(devnull, x) == (5,4)
     # Make sure the printed representation of a Measurement object is correctly parsed as
     # the same number (note that the tag will be different, but that's not important here).
-    for a in (w, x, y); @test eval(Meta.parse(repr(a))) == a; end
+    for a in (w, x, y, range(w, 10w, length=10))
+        @test eval(Meta.parse(repr(a))) == a
+    end
+    # correct quoting in expressions
+    @test eval(eval(Meta.parse(repr(:(2 * $w))))) == 2 * w
 end
 
 @testset "sum" begin