40 lines
2.0 KiB
Plaintext
40 lines
2.0 KiB
Plaintext
IN: help
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USING: namespaces ;
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HELP: ignored-word?
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{ $values { "string" "a string" } } { $description "Tests for English stop words." } ;
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HELP: tokenize
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{ $values { "string" "a string" } { "seq" "a sequence of strings" } }
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{ $description "Split a string along whitespace boundaries, convert all tokens to lower case, stem all tokens, and discards one-letter words and stop words." } ;
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HELP: index-text
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{ $values { "topic" "a help article name or a word" } { "string" "a string" } }
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{ $description "Tokenizes the string and adds each token to the term index." }
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{ $notes "This word operates on the current namespace, and so must be wrapped in a " { $link bind } " to specify the term index hashtable." } ;
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HELP: index-article
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{ $values { "topic" "a help article name or a word" } }
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{ $description "Adds the tokens making up the article to the term index." } ;
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HELP: term-index
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{ $var-description "A hashtable mapping stemmed search terms to hashtables mapping help topics to relevancy scores."
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$terpri
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"The " { $link search-help } " word searches the term index and the " { $link index-help } " word updates it." }
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{ $see-also help } ;
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HELP: count-occurrences
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{ $values { "seq" "a sequence of hashtables" } { "hash" "a hashtable" } }
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{ $description "Collates all keys from the hashtables in " { $snippet "seq" } " and sums their values, which must be numbers." } ;
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HELP: search-help
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{ $values { "phrase" "a string" } { "assoc" "a sequence of pairs" } }
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{ $description "Performs a full-text search in the term index for help topics relating to " { $snippet "phrase" } ". The result is an association list of topic names paired with scores, sorted by decreasing score." } ;
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HELP: index-help
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{ $description "Updates the full-text search term index for use by " { $link search-help. } " and " { $link search-help } "." } ;
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HELP: search-help.
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{ $values { "phrase" "a string" } }
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{ $description "Performs a full-text search in the term index for help topics relating to " { $snippet "phrase" } ", and prints an outliner with the results." } ;
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