Class: Cocoadex::Tokenizer

Inherits:
Object
  • Object
show all
Defined in:
lib/cocoadex/tokenizer.rb

Class Method Summary collapse

Class Method Details

.data_path ⇒ Object

Cache storage location



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# File 'lib/cocoadex/tokenizer.rb', line 6

def self.data_path
  Cocoadex.config_file("data/store.blob")
end

.fuzzy_match(text) ⇒ Object

Find all tokens with a term at least starting with a text string. If there is an exact match, return it instead of the entire list



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# File 'lib/cocoadex/tokenizer.rb', line 29

def self.fuzzy_match text
  subset = tokens.select {|t| t.term.start_with? text }
  if token = subset_match(subset, text)
    [token]
  else
    subset
  end
end

.loaded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocoadex/tokenizer.rb', line 42

def self.loaded?
  File.exists?(data_path)
end

.match(text) ⇒ Object

Find all tokens with a term identical to a string



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# File 'lib/cocoadex/tokenizer.rb', line 16

def self.match text
  subset_match(tokens, text)
end

.persist ⇒ Object 



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# File 'lib/cocoadex/tokenizer.rb', line 38

def self.persist
  Serializer.write_array(data_path, tokens, :overwrite)
end

.subset_match(subset, text) ⇒ Object

Find all tokens in a subset with a term identical to a string



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# File 'lib/cocoadex/tokenizer.rb', line 22

def self.subset_match subset, text
  subset.detect {|t| t.term == text }
end

.tokenize_class(docset, path, id) ⇒ Object

Find all searchable keywords in a class and add to cache



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# File 'lib/cocoadex/tokenizer.rb', line 48

def self.tokenize_class docset, path, id
  klass = Cocoadex::Class.new(path)
  properties = {
    :method   => klass.methods,
    :property => klass.properties
  }
  tokenize(docset, klass, :class, id, properties)
end

.tokenize_ref(docset, path, id) ⇒ Object

Find all searchable keywords in a reference and add to cache



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# File 'lib/cocoadex/tokenizer.rb', line 59

def self.tokenize_ref docset, path, id
  ref = Cocoadex::GenericRef.new(path)
  properties = {
    :constant    => ref.constants,
    :data_type   => ref.data_types,
    :result_code => ref.result_codes,
    :const_group => ref.const_groups,
    :function    => ref.functions,
    :callback    => ref.callbacks
  }
  tokenize(docset, ref, :ref, id, properties)
end

.tokens ⇒ Object

All indexed searchable keys



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# File 'lib/cocoadex/tokenizer.rb', line 11

def self.tokens
  @store ||= loaded? ? Serializer.read(data_path) : []
end

.untokenize(keys) ⇒ Object

Create Cocoadex model objects from tokenized keywords references



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# File 'lib/cocoadex/tokenizer.rb', line 74

def self.untokenize keys
  keys.map do |key|
    case key.type
    when :class
      Cocoadex::Class.new(key.url)
    when :ref
      Cocoadex::GenericRef.new(key.url)
    when :data_type,   :result_code, :function,
         :const_group, :constant, :callback

      if class_key = tokens.detect {|k| k.id == key.fk}
        ref = Cocoadex::GenericRef.new(class_key.url)
        list = case key.type
          when :result_code then ref.result_codes
          when :data_type   then ref.data_types
          when :const_group then ref.const_groups
          when :constant    then ref.constants
          when :function    then ref.functions
          when :callback    then ref.callbacks
        end
        list.detect {|m| m.name == key.term}
      end
    when :method, :property
      if class_key = tokens.detect {|k| k.id == key.fk}
        klass = Cocoadex::Class.new(class_key.url)
        list = key.type == :method ? klass.methods : klass.properties
        list.detect {|m| m.name == key.term}
      end
    end
  end
end