Vocabulary
unicode.breaks

Inputs and outputs

start	an index
str	a string
i	an index

Word description
Finds the length of the first grapheme of the string, starting from the given index. This can be used repeatedly to efficiently traverse the graphemes of the string, using slices.

Definition

USING: kernel math sequences ;

IN: unicode.breaks

: first-grapheme-from ( start str -- i )
over tail-slice first-grapheme + ;