Class: BEL::Completion::MatchNamespaceValueRule

Inherits:
Object
  • Object
show all
Includes:
Rule, Quoting
Defined in:
lib/bel/completion_rule.rb

Constant Summary

Constants included from Quoting

Quoting::KeywordMatcher, Quoting::NonWordMatcher

Instance Method Summary collapse

Methods included from Quoting

#always_quote, #ensure_quotes, #quotes_required?, #remove_quotes

Methods included from Rule

#apply

Instance Method Details

#_apply(token_list, active_token, active_token_index, options = {}) ⇒ Object 



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# File 'lib/bel/completion_rule.rb', line 184

def _apply(token_list, active_token, active_token_index, options = {})
  search = options.delete(:search)
  return EMPTY_MATCH if not search or token_list.empty?

  if active_token.type == :IDENT && active_token.value.length > 1
    previous_token = token_list[active_token_index - 1]
    if previous_token and previous_token.type == :COLON
      # search within a namespace
      prefix_token = token_list[active_token_index - 2]
      if prefix_token and prefix_token.type == :IDENT
        namespace = BEL::Namespace::NAMESPACE_LATEST[prefix_token.value.to_sym]
        if namespace
          scheme_uri = namespace[1]
          return search.search_namespace(
            URI(scheme_uri),
            "#{active_token.value}*",
            :start => 0,
            :size  => 10
          ).
            map { |search_result|
              map_namespace_value(search_result.pref_label)
            }.to_a
        end
      end
    else
      return search.search(
        active_token.value,
        :start => 0,
        :size  => 10
      ).
        map { |search_result|
          map_namespace_value(search_result.pref_label)
        }.to_a
    end
  end

  return EMPTY_MATCH
end