small code refactoring
small code refactoring

coolshou/qjson,qlands/qjson,seem-sky/qjson,cbranch/qjson-qmakefriendly,cbranch/qjson-qmakefriendly,flavio/qjson,flavio/qjson,gentlefn/qjson,qlands/qjson,drizt/qjson,gentlefn/qjson,coolshou/qjson,seem-sky/qjson,drizt/qjson