Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/rbbt/bow/bow.rb,
lib/rbbt/util/misc.rb

Constant Summary collapse

CONSONANTS = 
[]

Instance Method Summary collapse

Instance Method Details

#arabic ⇒ Object

Turns a roman number into arabic form is possible. Just simple romans only…



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# File 'lib/rbbt/util/misc.rb', line 46

def arabic
  return 1 if self =~ /^I$/;
  return 2 if self =~ /^II$/;
  return 3 if self =~ /^III$/;
  return 4 if self =~ /^IV$/;
  return 5 if self =~ /^V$/;
  return 10 if self =~ /^X$/;

  return nil
end

#bigrams ⇒ Object

Shortcut for BagOfWords.bigrams(self)



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# File 'lib/rbbt/bow/bow.rb', line 83

def bigrams
  BagOfWords.bigrams(self)
end

#downcase_first ⇒ Object

Turns the first letter to lowercase



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# File 'lib/rbbt/util/misc.rb', line 37

def downcase_first
  return "" if self == ""
  letters = self.scan(/./)
  letters[0].downcase!
  letters.join("")
end

#is_special? ⇒ Boolean

Uses heuristics to checks if a string seems like a special word, like a gene name.

Returns:

  • (Boolean) 


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# File 'lib/rbbt/util/misc.rb', line 11

def is_special?
  # Only consonants
  return true if self =~ /^[bcdfghjklmnpqrstvwxz]+$/i 

  # Not a word
  return false if self =~ /[^\s]\s[^\s]/;
  return false if self.length < 3;
  # Alphanumeric
  return true if self =~ /[0-9]/ &&  self =~ /[a-z]/i
  # All Caps
  return true if self =~ /[A-Z]{2,}/;
  # Caps Mix
  return true if self =~ /[a-z][A-Z]/;
  # All consonants
  return true if self =~ /^[a-z]$/i && self !~ /[aeiou]/i
  # Dashed word
  return true if self =~ /(^\w-|-\w$)/
  # To many consonants (very heuristic)
  if self =~ /([^aeiouy]{3,})/i && !CONSONANTS.include?($1.downcase)
    return true
  end

  return false
end

#words ⇒ Object

Shortcut for BagOfWords.words(self)



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# File 'lib/rbbt/bow/bow.rb', line 78

def words
  BagOfWords.words(self)
end