Class: Konjac::Suggestor

Inherits:
Object
  • Object
show all
Defined in:
lib/konjac/suggestor.rb

Overview

A class for suggesting translations

Constant Summary collapse

SUGGEST_COUNT =

The default suggested count

10
SUGGEST_CUTOFF =

The default suggest cutoff

0.5

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(from_lang, to_lang, opts = {}) ⇒ Suggestor

Creates a new Suggestor object



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# File 'lib/konjac/suggestor.rb', line 14

def initialize(from_lang, to_lang, opts = {})
  @pairs = Dictionary.load(from_lang, to_lang, opts)
end

Instance Attribute Details

#pairs ⇒ Object

A list of all pairs available



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# File 'lib/konjac/suggestor.rb', line 5

def pairs
  @pairs
end

Instance Method Details

#suggest(word, opts = {}) ⇒ Object

Provides suggested translations for a word, providing an array containing the pair distance, fuzzy match used and the suggested replacement



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# File 'lib/konjac/suggestor.rb', line 20

def suggest(word, opts = {})
  # Set defaults for optional arguments
  opts = {
    :count  => SUGGEST_COUNT,
    :cutoff => SUGGEST_CUTOFF
  }.merge opts

  results = []
  matcher = Amatch::PairDistance.new(word)
  @pairs.each do |search, replace, fuzzy|
    if fuzzy.is_a?(String)
      value = matcher.match(fuzzy)
    else
      value = (search =~ word ? 1 : 0)
    end

    if (results.empty? || value > results[0][0]) && value >= opts[:cutoff]
      results << [value, fuzzy, replace]
      results.sort!
      results.shift if results.length > opts[:count]
    end
  end
  results.reverse
end