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change clump when the group size is greater than the sequence length

db4
Jon Harper 2012-10-28 14:34:55 +01:00 committed by Doug Coleman
parent 40ca3fc7f3
commit 2fc1442771
3 changed files with 5 additions and 5 deletions
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2
basis/grouping/grouping-docs.factor
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@ -117,7 +117,7 @@ $nl
HELP: clump
{ $values { "seq" "a sequence" } { "n" "a non-negative integer" } { "array" "a sequence of sequences" } }
{ $description "Splits the sequence into overlapping clumps of " { $snippet "n" } " elements and collects the clumps into a new array." }
{ $errors "Throws an error if " { $snippet "n" } " is larger than the length of the sequence." }
{ $notes "If the sequence length is smaller than " { $snippet "n" } ", the result will be an array with one element: the original sequence " { $snippet "seq" } "." }
{ $examples
{ $example "USING: grouping prettyprint ;" "{ 3 1 3 3 7 } 2 clump ." "{ { 3 1 } { 1 3 } { 3 3 } { 3 7 } }" }
} ;

4
basis/grouping/grouping-tests.factor
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@ -12,8 +12,8 @@ IN: grouping.tests
>array
] unit-test
[ 0 ] [ { } 2 <clumps> length ] unit-test
[ 0 ] [ { 1 } 2 <clumps> length ] unit-test
[ 1 ] [ { } 2 <clumps> length ] unit-test
[ 1 ] [ { 1 } 2 <clumps> length ] unit-test
[ 1 ] [ { 1 2 } 2 <clumps> length ] unit-test
[ 2 ] [ { 1 2 3 } 2 <clumps> length ] unit-test

4
basis/grouping/grouping.factor
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@ -44,13 +44,13 @@ MIXIN: abstract-clumps
INSTANCE: abstract-clumps sequence
M: abstract-clumps length
[ seq>> length 1 + ] [ n>> ] bi [-] ; inline
[ seq>> length 1 + ] [ n>> ] bi - 1 max ; inline
M: abstract-clumps set-length
[ n>> + 1 - ] [ seq>> ] bi set-length ; inline
M: abstract-clumps group@
[ n>> over + ] [ seq>> ] bi ; inline
[ [ n>> over + ] [ seq>> length ] bi min ] [ seq>> ] bi ; inline
TUPLE: chunking-seq { seq read-only } { n read-only } ;