Sometimes it is useful to find out which character set a particular character belongs to. One use for this is in determining which coding systems (see Coding Systems) are capable of representing all of the text in question; another is to determine the font(s) for displaying that text.
This function returns the charset of highest priority containing the character at position pos in the current buffer. If pos is omitted or
nil, it defaults to the current value of point. If pos is out of range, the value is
This function returns a list of the character sets of highest priority that contain characters in the current buffer between positions beg and end.
The optional argument translation specifies a translation table to use for scanning the text (see Translation of Characters). If it is non-
nil, then each character in the region is translated through this table, and the value returned describes the translated characters instead of the characters actually in the buffer.