A method and apparatus for allowing for field size calculation and color coding display options usable in an emulated integrated development environment (IDE). A user may be able to quickly and accurately calculate the field size of variables in a code structure, irrespective of the length of the structure or the number of variables selected. The user may also be able to match the variables with their redefinitions accurately and easily when required. A user may also be able to easily identify the names of sections, paragraphs, referenced variables, and unreferenced variables visually in a code editor. The users may also be able to assign colors of his choice to the sections, paragraphs, referenced variables, and unreferenced variables.