Abstract: A method of distinguishing between nested expressions, functions, logic segments or other text by using a different color for each nesting level.

Abstract: A display technique allows the user to input information to a computer in the form of color with character text. The technique provides an ergonomic approach to convey information to an application program by using color to specify functions or attributes. Colors are used to reduce the number of interactions necessary to accomplish a task between the user and the application program. In many systems a command has to be typed to save a file. These commands range in size from one to many characters and require the user to key in each character and the filename. The improvement described is a technique for typing the filename in a specified color that the application interprets to mean, for example, Save the file. The technique assigns a color to data elements input to the system. The color is interpreted by the application to indicate what specific function, attribute or value should be associated with the data element.