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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.