Class: CorrectHorseBatteryStaple::Parser::Regex

Inherits:

Base

• Object
• CorrectHorseBatteryStaple::Parser
• Base
• CorrectHorseBatteryStaple::Parser::Regex

Defined in:

lib/correct_horse_battery_staple/parser/regex.rb

Constant Summary

PARSERS =

{
    :wiktionary   =>  [%r{<a href="/wiki/\w+" title="(\w+)">\w+</a> = (\d+)},
      lambda {|match| CorrectHorseBatteryStaple::Word.new(:word => match[0], :frequency => match[1].to_i) }],

    # rank	lemma	PoS	freq	dispersion
    # 7	to	t	6332195	0.98
    :wordfrequency => [ %r{^(\d+)\s+(\w+)\s+\w*\s+(\d+)\s+([0-9.]+)},
    lambda {|match| CorrectHorseBatteryStaple::Word.new(:word => match[1],
        :rank => match[0].to_f,
        :frequency => match[3].to_f,
        :dispersion => match[4].to_f)
    }],

    # using tabs between columns
    # freq    word    PoS     # texts
    # -----   -----   -----   -----
    # 22995878        the     at      169011
    # 11239776        and     cc      168844
    :coca => [ %r{^(\d+)\s+(\w+)\s+\w*\s+(\d+)},
    lambda {|match| CorrectHorseBatteryStaple::Word.new(:word => match[1],
        :frequency => match[0].to_i,
        :texts => match[2].to_i)
    }],

  # <tr>
  # <td>25</td>
  # <td><a href="/wiki/be" title="be">be</a></td>
  # <td>191823</td>
  # </tr>
  :tvscripts => [
    Regexp.new('<tr>.*?<td>(\d+)</td>.*?<td>.*?title="(\w+)".*?</td>.*?<td>(\d+)</td>.*?</tr>', Regexp::MULTILINE),
    lambda {|match| CorrectHorseBatteryStaple::Word.new(
        :rank => match[0].to_i,
        :word => match[1],
        :frequency => match[2].to_i
        ) }
  ]
}

Instance Method Summary

• #initialize(type = :wiktionary) ⇒ Regex constructor

  A new instance of Regex.

• #parse(file) ⇒ Object

Methods included from Common

#array_sample, #logger, #random_in_range, #random_number, #set_sample

Constructor Details

#initialize(type = :wiktionary) ⇒ Regex

Returns a new instance of Regex.

# File 'lib/correct_horse_battery_staple/parser/regex.rb', line 43

def initialize(type = :wiktionary)
  @parser_type = type.to_sym
end

Instance Method Details

#parse(file) ⇒ Object

Raises:

• (ArgumentError)

# File 'lib/correct_horse_battery_staple/parser/regex.rb', line 47

def parse(file)
  raise ArgumentError, "unknown regex parser type #{@parser_type}" unless PARSERS.has_key?(@parser_type)
  (regex, lexer) = PARSERS[@parser_type]

  words = 
    file.read.scan(regex).map do |match|
      lexer.call(match)
    end

end