Convert HPGL to UIL

The HPGL file extension, short for Hewlett-Packard Graphics Language, is a file format and printer control language developed by Hewlett-Packard in 1977 for use with their plotter printers, starting with the HP-9872. HPGL files contain commands that instruct plotters to draw images using lines rather than dots, making them essential in CAD applications and technical drawings. The language uses a series of two-letter codes followed by parameters to control the plotter's actions, such as moving the pen or drawing shapes.

The UIL file extension stands for User Interface Language and is associated with the X-Motif UIL Table. It is a plain text file format used by the UIL compiler to create user interfaces for the X Window System. UIL files define menus, buttons, dialog boxes, and other graphical user interface components. Introduced by The Open Group, this format allows developers to describe the initial state of a user interface, including widgets, resources, and callbacks. The UIL file is compiled into a UID file, which can be accessed by Motif Resource Management functions within an application.