Class: ActiveFacts::Metamodel::Reading

Inherits:
Object
  • Object
show all
Defined in:
lib/activefacts/vocabulary/metamodel.rb,
lib/activefacts/vocabulary/extensions.rb

Instance Method Summary collapse

Instance Method Details

#expand(frequency_constraints = [], define_role_names = nil, literals = [], &subscript_block) ⇒ Object

The frequency_constraints array here, if supplied, may provide for each role either:

  • a PresenceConstraint to be verbalised against the relevant role, or

  • a String, used as a definite or indefinite article on the relevant role, or

  • an array containing two strings (an article and a super-type name)

The order in the array is the same as the reading’s role-sequence. REVISIT: This should probably be changed to be the fact role sequence.

define_role_names here is false (use defined names), true (define names) or nil (neither)



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# File 'lib/activefacts/vocabulary/extensions.rb', line 346

def expand(frequency_constraints = [], define_role_names = nil, literals = [], &subscript_block)
  expanded = "#{text}"
  role_refs = role_sequence.all_role_ref.sort_by{|role_ref| role_ref.ordinal}
  (0...role_refs.size).each{|i|
      role_ref = role_refs[i]
      role = role_ref.role
      la = "#{role_ref.leading_adjective}".sub(/(.\b|.\Z)/, '\1-').sub(/- /,'-  ')
      la = nil if la == ""
      # Double the space to compensate for space removed below
      ta = "#{role_ref.trailing_adjective}".sub(/(\b.|\A.)/, '-\1').sub(/ -/,'  -')
      ta = nil if ta == ""

      expanded.gsub!(/\{#{i}\}/) {
          role_ref = role_refs[i]
          player = role_ref.role.concept
          role_name = role.role_name
          role_name = nil if role_name == ""
          if role_name && define_role_names == false
            la = ta = nil   # When using role names, don't add adjectives
          end
          fc = frequency_constraints[i]
          fc = fc.frequency if fc && fc.is_a?(ActiveFacts::Metamodel::PresenceConstraint)
          if fc.is_a?(Array)
            fc, player_name = *fc
          else
            player_name = player.name
          end
          literal = literals[i]
          [
            fc ? fc : nil,
            la,
            define_role_names == false && role_name ? role_name : player_name,
            ta,
            define_role_names && role_name && player.name != role_name ? "(as #{role_name})" : nil,
            # Can't have both a literal and a value constraint, but we don't enforce that here:
            literal ? literal : nil
          ].compact*" " +
            (subscript_block ? subscript_block.call(role_ref) : "")
      }
  }
  expanded.gsub!(/ ?- ?/, '-')        # Remove single spaces around adjectives
  #debug "Expanded '#{expanded}' using #{frequency_constraints.inspect}"
  expanded
end

#words_and_role_refs ⇒ Object 



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# File 'lib/activefacts/vocabulary/extensions.rb', line 391

def words_and_role_refs
  text.
  scan(/(?: |\{[0-9]+\}|[^{} ]+)/).   # split up the text into words
  reject{|s| s==' '}.                 # Remove white space
  map do |frag|                       # and go through the bits
    if frag =~ /\{([0-9]+)\}/
      role_sequence.all_role_ref.detect{|rr| rr.ordinal == $1.to_i}
    else
      frag
    end
  end
end