factor/library/help/database.factor

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Factor

! Copyright (C) 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
IN: help
USING: arrays hashtables io kernel namespaces parser sequences
strings styles words ;
! Markup
GENERIC: print-element
GENERIC: article-name
! Help articles
SYMBOL: articles
TUPLE: article title content ;
: article ( name -- article ) articles get hash ;
: add-article ( name title element -- )
<article> swap articles get set-hash ;
M: string article-title article article-title ;
M: string article-name article article-name ;
M: string article-content article article-content ;
M: article article-name article-title ;
! Special case: f help
M: f article-title drop \ f article-title ;
M: f article-name drop \ f article-name ;
M: f article-content drop \ f article-content ;
! Glossary of terms
SYMBOL: terms
TUPLE: term entry ;
M: term article-title term-entry ;
M: term article-name term-entry ;
M: term article-content
term-entry terms get hash
[ "No such glossary entry" ] unless* ;
: add-term ( term element -- ) swap terms get set-hash ;