Force Next Uppercase-Lowercase (Xfn)

Instruction: Xfn

Parameter: None

Description:

Analyzes the character at the cursor position, and if it is a letter, sets a flag that forces the word processor to automatically write the text in uppercase or lowercase. This instruction is also relevant based on its execution priority, as the result can differ depending on whether it is executed before or after a delete instruction.

Examples:

Action: Dn1 Xfn

Description: Deletes 1 character starting from the cursor, then sets the uppercase/lowercase flag based on the new character at the cursor position.

Action: Xfn Dn1

Description: Sets the uppercase/lowercase flag based on the character at the cursor position, then deletes the character.