Method: Xjson#reference_handle

Defined in:
lib/xjson.rb

#reference_handle(data, ref_desc) ⇒ Object 



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# File 'lib/xjson.rb', line 68

def reference_handle( data, ref_desc )
    if ref_desc[0] != ":"
        # [ data, ref_desc ]
        reference_handle( data, ":#{ref_desc}" )
    else
        # Relative reference from root.
        path = ref_desc.split( ":" )[1..-1]
        scope = data
        while path[0..-2].any?
            if path[0] == "*"
                # Wildcard for array.
                unless path[1] && path[2]
                    raise XjsonReferenceError,
                    "Invalid reference: \"#{ref_desc}\" in \"#{@cur_file[0]}\", missing match key and value ..."
                end
                index = find_in_array_of_hash( scope, path[1], path[2] )
                unless index
                    raise XjsonReferenceError,
                    "Invalid reference: \"#{ref_desc}\" in \"#{@cur_file[0]}\", key and value not matched ..."
                end
                scope = scope[ index ]
                path.shift( 2 )
            else
                begin
                    index = Integer( path[0] )
                    scope = scope[ index ]
                rescue
                    scope = scope[ path[0] ]
                end
            end
            path.shift
            unless scope
                raise XjsonReferenceError,
                "Invalid reference: \"#{ref_desc}\" in \"#{@cur_file[0]}\"..."
            end
        end
        [ scope, path[-1] ]
    end
end