NAME

utfbytes − compute UTF length of complete Unicode characters in a UTF byte sequence

SYNOPSIS

include "sys.m";
sys := load Sys Sys->PATH;
 utfbytes: fn(buf: array of byte, n: int): int;

DESCRIPTION

­Utfbytes examines the n-byte UTF sequence in buf and returns the number of bytes representing complete Unicode characters.  The value will be less than ­n when the region inspected ends with an incomplete UTF sequence. 

DIAGNOSTIC

A bounds check error results if ­n exceeds the length of the array. 

SEE ALSO

sys-intro(2), sys-byte2char(2), utf(6)

Plan 9  —  June 29, 2000