Method: NGramPrefixDictionary#initialize

Defined in:
lib/rbbt/ner/ngram_prefix_dictionary.rb

#initialize(file, type = nil, case_insensitive = false) ⇒ NGramPrefixDictionary

Returns a new instance of NGramPrefixDictionary.



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# File 'lib/rbbt/ner/ngram_prefix_dictionary.rb', line 128

def initialize(file, type = nil, case_insensitive = false)
  @type = type
  @case_insensitive = case_insensitive
  case
  when (TSV === file or Hash === file)
    Log.debug("Ngram Prefix Dictionary. Loading of lexicon hash started.")
    @index = NGramPrefixDictionary.process_hash(file, case_insensitive)
  when Path === file
    Log.debug("Ngram Prefix Dictionary. Loading of lexicon file started: #{ file }.")
    @index = NGramPrefixDictionary.process_stream(file.open, case_insensitive)
  when Misc.is_filename?(file)
    Log.debug("Ngram Prefix Dictionary. Loading of lexicon file started: #{ file }.")
    @index = NGramPrefixDictionary.process_stream(Open.open(file))
  when StreamIO === file
    Log.debug("Ngram Prefix Dictionary. Loading of lexicon stream started.")
    @index = NGramPrefixDictionary.process_stream(file, case_insensitive)
  else
    raise "Format of lexicon not understood: #{file.inspect}"
  end

  Log.debug("Ngram Prefix Dictionary. Loading done.")
end