Class: Analects::CedictLoader

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/analects/cedict_loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(io, library) ⇒ CedictLoader

Returns a new instance of CedictLoader.



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# File 'lib/analects/cedict_loader.rb', line 9

def initialize(io, library)
  @contents = io.read
  @headers = {}
  @contents.each_line do |line|
    if line =~ /^#! (.*)=(.*)/
      @headers[$1.strip] = $2.strip
    end
    break unless line =~ /^#/
  end
end

Instance Attribute Details

#headers ⇒ Object (readonly)

Returns the value of attribute headers.



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# File 'lib/analects/cedict_loader.rb', line 7

def headers
  @headers
end

Instance Method Details

#each(&blk) ⇒ Object 



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# File 'lib/analects/cedict_loader.rb', line 24

def each(&blk)
  return to_enum(__method__) unless block_given?
  @entries ||= @contents.each_line.map do |line|
    process_contents(line) if line !~ /^#/
  end.compact
  @entries.each(&blk)
end

#field_names ⇒ Object 



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# File 'lib/analects/cedict_loader.rb', line 20

def field_names
  [:traditional, :simplified, :pinyin, :definitions]
end

#find_by(qry) ⇒ Object 



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# File 'lib/analects/cedict_loader.rb', line 32

def find_by(qry)
  qry.map {|field, value| lookup_index(field).fetch(value, [])}.inject {|r1, r2| r1 & r2}
end

#lookup_index(field) ⇒ Object 



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# File 'lib/analects/cedict_loader.rb', line 36

def lookup_index(field)
  @indexes ||= field_names.each_with_object({}) do |field, acc|
    acc[field] = each_with_object({}) do |entry, acc|
      (acc[entry[field_names.index(field)]] ||= []) << entry
    end
  end
  @indexes[field]
end