first-grapheme-from ( start str -- i )
Word and grapheme breaks

Prev:	first-grapheme ( entire-str start -- i )
Next:	last-grapheme ( str -- i )

Vocabulary
unicode

Inputs

start	an index
str	a string

Outputs

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: math ;

IN: unicode

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