Module: Gamefic::Scanner

Defined in:
lib/gamefic/scanner.rb

Overview

A module for matching objects to tokens.

Defined Under Namespace

Classes: Result

Constant Summary collapse

NEST_REGEXP = 
/ in | on | of | from | inside | from inside /

Class Method Summary collapse

Class Method Details

.scan(objects, token) ⇒ Result

Scan entities against a token.

Parameters:

Returns:



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# File 'lib/gamefic/scanner.rb', line 45

def self.scan objects, token
  # @note Theoretically, scanned objects only have to implement two
  #   methods:
  #     *  #keywords => [Array<String>]
  #     *  #children => [Array<#keywords, #children>]

  words = token.keywords
  available = objects.clone
  filtered = []
  if nested?(token) && objects.all?(&:children)
    denest(objects, token)
  else
    words.each_with_index do |word, idx|
      tested = select_strict(available, word)
      tested = select_fuzzy(available, word) if tested.empty?
      return Result.new(objects, token, filtered, words[idx..].join(' ')) if tested.empty?

      filtered = tested
      available = filtered
    end
    Result.new(objects, token, filtered, '')
  end
end