PL/I Counter and Theme Toggle - Pli Typing CST Test

PL/I Counter and Theme Toggle — Pli Code

Demonstrates a simple counter with theme toggling using PL/I variables and procedures.

DECLARE count FIXED BINARY(31) INITIAL(0);
DECLARE isDark BIT(1) INITIAL('0'B);

UPDATEUI: PROCEDURE OPTIONS(MAIN);
	PUT SKIP LIST('Counter: ', count);
	IF isDark = '1'B THEN
		PUT SKIP LIST('Theme: Dark');
	ELSE
		PUT SKIP LIST('Theme: Light');
	END;
END UPDATEUI;

INCREMENT: PROCEDURE;
	count = count + 1;
	CALL UPDATEUI();
END INCREMENT;

DECREMENT: PROCEDURE;
	count = count - 1;
	CALL UPDATEUI();
END DECREMENT;

RESET: PROCEDURE;
	count = 0;
	CALL UPDATEUI();
END RESET;

TOGGLETHEME: PROCEDURE;
	IF isDark = '0'B THEN
		isDark = '1'B;
	ELSE
		isDark = '0'B;
	END;
	CALL UPDATEUI();
END TOGGLETHEME;

/* Simulate actions */
CALL UPDATEUI();
CALL INCREMENT();
CALL INCREMENT();
CALL TOGGLETHEME();
CALL DECREMENT();
CALL RESET();

Pli Language Guide

PLI (Programming Language One) is a procedural, compiled language designed for business and systems programming, particularly for large-scale data processing and legacy IBM mainframe environments.

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