clump ( seq n -- array )
Factor handbook » The language » Collections » Sequence operations » Groups and clumps

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Vocabulary
grouping

Inputs

seq	a sequence
n	a non-negative integer

Outputs

array

a sequence of sequences

Word description
Splits the sequence into overlapping clumps of n elements and collects the clumps into a new array.

Notes
For an empty sequence, the result is an empty sequence. For a non empty sequence with a length smaller than n, the result will be an empty sequence.

Examples

USING: grouping prettyprint ; { 3 1 3 3 7 } 2 clump .
{ { 3 1 } { 1 3 } { 3 3 } { 3 7 } }

See also
circular-clump, group

Definition

USING: grouping.private ;

IN: grouping

: clump ( seq n -- array ) [ <clumps> ] map-like ; inline