Previous character equal- Ci

- Instruction: Ci - Parameter: none - Return: true if previous character is equal - Description: Returns true if the previous character is equal to the first character in the text string. This instruction does not want any parameters. The status of upper/lower case is considered when comparing letters. - Examples: Text string: a Braille string: 456 Condition: Ci Description: The letter "a" is transcribed with cell "456" if there is another "a" before it. Text string: biblos Braille string: 456 Condition: Ci Description: The word "biblos" is transcribed with cell "456" if there is a "b" before it.