75 lines
2.0 KiB
Factor
Executable File
75 lines
2.0 KiB
Factor
Executable File
! Copyright (C) 2005, 2007 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.x
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USING: arrays definitions generic assocs
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io kernel namespaces prettyprint prettyprint.sections
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sequences words inspector classes strings vocabs ;
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IN: help.topics
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TUPLE: link name ;
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MIXIN: topic
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INSTANCE: link topic
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INSTANCE: word topic
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GENERIC: >link ( obj -- obj )
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M: link >link ;
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M: vocab-spec >link ;
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M: object >link link construct-boa ;
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PREDICATE: link word-link link-name word? ;
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M: link summary
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[
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"Link: " %
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link-name dup word? [ summary ] [ unparse ] if %
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] "" make ;
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! Help articles
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SYMBOL: articles
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articles global [ H{ } assoc-like ] change-at
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SYMBOL: article-xref
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article-xref global [ H{ } assoc-like ] change-at
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GENERIC: article-name ( topic -- string )
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GENERIC: article-parent ( topic -- parent )
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GENERIC: set-article-parent ( parent topic -- )
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TUPLE: article title content loc ;
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: <article> ( title content -- article )
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f \ article construct-boa ;
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M: article article-name article-title ;
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TUPLE: no-article name ;
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: no-article ( name -- * ) \ no-article construct-boa throw ;
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M: no-article summary
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drop "Help article does not exist" ;
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: article ( name -- article )
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dup articles get at* [ nip ] [ drop no-article ] if ;
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M: object article-name article article-name ;
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M: object article-title article article-title ;
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M: object article-content article article-content ;
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M: object article-parent article-xref get at ;
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M: object set-article-parent article-xref get set-at ;
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M: link article-name link-name article-name ;
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M: link article-title link-name article-title ;
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M: link article-content link-name article-content ;
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M: link article-parent link-name article-parent ;
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M: link set-article-parent link-name set-article-parent ;
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! Special case: f help
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M: f article-name drop \ f article-name ;
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M: f article-title drop \ f article-title ;
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M: f article-content drop \ f article-content ;
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M: f article-parent drop \ f article-parent ;
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M: f set-article-parent drop \ f set-article-parent ;
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