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The first programming project involves writing a program that parses, using recursive descent, a GUI definition language defined in an input file and generates the GUI that it defines. The gr ammar for this language is defined below: gui layout layout type Window STRING ('NUMBER "NUMBER "layout widgets End . Layout layout_type Flow | Grid ('NUMBER "NUMBER NUMBER NUMBER] widgets : widget widgets widget widget: Button STRING Group radio_buttons End Label STRING Panel layout widgets End' Textfield NUMBER radio_buttons : radio_button radio_buttons | radio button radio button : Radio STRING The first programming project involves writing a program that parses, using recursive descent, a GUI definition language defined in an input file and generates the GUI that it defines. The gr ammar for this language is defined below: gui layout layout type Window STRING ('NUMBER "NUMBER "layout widgets End . Layout layout_type Flow | Grid ('NUMBER "NUMBER NUMBER NUMBER] widgets : widget widgets widget widget: Button STRING Group radio_buttons End Label STRING Panel layout widgets End' Textfield NUMBER radio_buttons : radio_button radio_buttons | radio button radio button : Radio STRING