fix #26

src/XML.jl

@@ -206,6 +206,7 @@ Base.push!(a::Node, b::Node) = push!(a.children, b)
 Base.setindex!(o::Node, val, key::AbstractString) = (o.attributes[key] = string(val))
 Base.getindex(o::Node, val::AbstractString) = o.attributes[val]
 Base.haskey(o::Node, key::AbstractString) = isnothing(o.attributes) ? false : haskey(o.attributes, key)
+Base.keys(o::Node) = isnothing(o.attributes) ? () : keys(o.attributes)
 
 Base.show(io::IO, o::Node) = _show_node(io, o)
 

src/raw.jl

@@ -1,16 +1,16 @@
 #-----------------------------------------------------------------------------# RawType
 """
     RawType:
-    - RawText                    # text
-    - RawComment                 # <!-- ... -->
-    - RawCData                   # <![CData[...]]>
-    - RawDeclaration             # <?xml attributes... ?>
+    - RawText                   # text
+    - RawComment                # <!-- ... -->
+    - RawCData                  # <![CData[...]]>
+    - RawDeclaration            # <?xml attributes... ?>
     - RawProcessingInstruction  # <?NAME attributes... ?>
-    - RawDTD                     # <!DOCTYPE ...>
+    - RawDTD                    # <!DOCTYPE ...>
     - RawElementOpen            # <NAME attributes... >
     - RawElementClose           # </NAME>
-    - RawElementSelfClosed     # <NAME attributes... />
-    - RawDocument                # Something to initialize with (not really used)
+    - RawElementSelfClosed      # <NAME attributes... />
+    - RawDocument               # Something to initialize with (not really used)
 """
 @enum(RawType, RawDocument, RawText, RawComment, RawCData, RawProcessingInstruction,
     RawDeclaration, RawDTD, RawElementOpen, RawElementClose, RawElementSelfClosed)

test/runtests.jl

@@ -201,8 +201,10 @@ end
 
     #set/get index for attributes
     o = doc[end]
+    @test isempty(keys(o))
     o["id"] = 1
     @test o["id"] == "1"
+    @test keys(o) == keys(Dict("id" => "1"))
 end
 
 #-----------------------------------------------------------------------------# Issues