33 lines
1.1 KiB
Factor
Executable File
33 lines
1.1 KiB
Factor
Executable File
! Copyright (C) 2010 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: help.markup help.syntax ;
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IN: slots.syntax
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HELP: slots[
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{ $description "Outputs several slot values to the stack." }
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{ $example "USING: kernel prettyprint slots.syntax ;"
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"IN: slots.syntax.example"
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"TUPLE: rectangle width height ;"
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"T{ rectangle { width 3 } { height 5 } } slots[ width height ] [ . ] bi@"
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"""3
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5"""
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} ;
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HELP: slots{
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{ $description "Outputs an array of slot values from a tuple." }
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{ $example "USING: prettyprint slots.syntax ;"
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"IN: slots.syntax.example"
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"TUPLE: rectangle width height ;"
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"T{ rectangle { width 3 } { height 5 } } slots{ width height } ."
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"{ 3 5 }"
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} ;
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ARTICLE: "slots.syntax" "Slots syntax sugar"
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"The " { $vocab-link "slots.syntax" } " vocabulary provides an alternative syntax for taking a sequence of slots from a tuple." $nl
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"Syntax sugar for cleaving slots to the stack:"
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{ $subsections POSTPONE: slots[ }
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"Syntax sugar for cleaving slots to an array:"
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{ $subsections POSTPONE: slots{ } ;
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ABOUT: "slots.syntax"
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