When, for example, instantiating a CFA with the pattern "RGü", where 'ü' consists of two bytes, the error message would print only the first byte of 'ü'.
In this pull request, the error message contains the full unknown character and also prints the whole pattern containing the character.
Also, I simplified all panic message formatting in this file.
When, for example, instantiating a CFA with the pattern "RGü", where 'ü' consists of two bytes, the error message would print only the first byte of 'ü'.
In this pull request, the error message contains the full unknown character and also prints the whole pattern containing the character.
Also, I simplified all panic message formatting in this file.