A-M baby

Task/Increment-a-numerical-string/Inform-7/increment-a-numerical-string.inf

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+Home is a room.
+
+To decide which indexed text is incremented (T - indexed text):
+	let temp be indexed text;
+	let temp be the player's command;
+	change the text of the player's command to T;
+	let N be a number;
+	if the player's command matches "[number]":
+		let N be the number understood;
+	change the text of the player's command to temp;
+	decide on "[N + 1]".
+
+When play begins:
+	say incremented "12345";
+	end the story.