- (* wiem że są biblioteki ale dla jaj robie swoje *)
- let single_byte_char c = ((int_of_char c) land 0x80) = 0x00
- let non_head_char c = ((int_of_char c) land 0xC0) == 0x80
- let two_bytes_char c = ((int_of_char c) land 0xE0) == 0xC0
- let three_bytes_char c = ((int_of_char c) land 0xF0) == 0xE0
- let four_bytes_char c = ((int_of_char c) land 0xF8) == 0xF0
- let char_length c =
- if single_byte_char c then 1 else
- if two_bytes_char c then 2 else
- if three_bytes_char c then 3 else
- 4
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