39 lines
1.3 KiB
Factor
39 lines
1.3 KiB
Factor
! Copyright (C) 2009 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: help.markup help.syntax kernel math.order quotations
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sequences strings ;
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IN: sorting.human
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HELP: find-numbers
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{ $values
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{ "sequence" sequence }
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{ "sequence'" sequence }
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}
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{ $description "Splits a string on numbers and returns a sequence of sequences and integers." } ;
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HELP: human<=>
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{ $values
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{ "obj1" object } { "obj2" object }
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{ "<=>" "an ordering specifier" }
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}
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{ $description "Compares two objects after converting numbers in the string into integers." } ;
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HELP: human>=<
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{ $values
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{ "obj1" object } { "obj2" object }
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{ ">=<" "an ordering specifier" }
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}
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{ $description "Compares two objects using the " { $link human<=> } " word and inverts the result." } ;
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ARTICLE: "sorting.human" "Human-friendly sorting"
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"The " { $vocab-link "sorting.human" } " vocabulary sorts by numbers as a human would -- by comparing their magnitudes -- rather than in a lexicographic way. For example, sorting a1, a10, a03, a2 with human sort returns a1, a2, a03, a10, while sorting with natural sort returns a03, a1, a10, a2." $nl
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"Comparing two objects:"
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{ $subsections
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human<=>
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human>=<
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}
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"Splitting a string into substrings and integers:"
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{ $subsections find-numbers } ;
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ABOUT: "sorting.human"
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