first-word ( str -- i ) - Factor Documentation

first-word ( str -- i )
Word and grapheme breaks

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Vocabulary
unicode.breaks

Inputs and outputs

str	a string
i	index

Word description
Finds the index of the end of the first word in the string.

Definition

USING: kernel sequences unicode.breaks.private ;

IN: unicode.breaks

: first-word ( str -- i )
    [ [ length ] [ first word-break-prop ] bi ] keep 1 swap dup
    [ word-break-next ] curry find-index-from drop nip swap or
    ;