Module: RandallRegExp::CharSets

Included in:
CharClass
Defined in:
lib/randall/charclass.rb

Overview

:nodoc: all

Instance Method Summary collapse

Instance Method Details

#all_chars ⇒ Object Also known as: ascii 



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# File 'lib/randall/charclass.rb', line 16

def all_chars
  @@ascii ||= strseq(0, 0x7f)
end

#control ⇒ Object 



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# File 'lib/randall/charclass.rb', line 25

def control
  @@control ||= strseq(0, 0x1f) << 0x7f
end

#decimal_number ⇒ Object Also known as: digit 



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# File 'lib/randall/charclass.rb', line 29

def decimal_number
  @@decimal_number ||= (0..9).to_a.map(&:to_s)
end

#graph ⇒ Object 



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# File 'lib/randall/charclass.rb', line 21

def graph
  @@graph ||= strseq(0x21, 0x7e)
end

#letter ⇒ Object 



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# File 'lib/randall/charclass.rb', line 44

def letter
  @@letter ||= self.lower_letter + self.upper_letter
end

#lower_letter ⇒ Object 



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# File 'lib/randall/charclass.rb', line 34

def lower_letter
  @@lower_letter ||= 26.times.map do |i|
    ('a'.ord + i).chr
  end
end

#punctuation ⇒ Object 



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# File 'lib/randall/charclass.rb', line 52

def punctuation
  # CHECK: which chars belong to this set?
  @@punct ||= ['!', "\"", '#', #'$', 
               '%', '&', "'", '(', ')',
               '*', #'+', 
               '-', '.', '/', ':', ';', '<', #'=', '>',
               '?', '@', '[', '\\', ']', #'^', 
               '_', #'`',
               '{', #'|', 
               '}', #'~'
               ]
end

#space ⇒ Object 



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# File 'lib/randall/charclass.rb', line 48

def space
  @@space ||= ["\s", "\t", "\r", "\n", "\v", "\f"]
end

#strseq(from, to) ⇒ Object 



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# File 'lib/randall/charclass.rb', line 12

def strseq(from, to)
  (from..to).map(&:chr)
end

#upper_letter ⇒ Object 



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# File 'lib/randall/charclass.rb', line 40

def upper_letter
  @@upper_letter ||= self.lower_letter.map(&:upcase)
end

#word ⇒ Object 



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# File 'lib/randall/charclass.rb', line 74

def word
  @@word ||= self.letter + self.digit << '_'
end

#xchar ⇒ Object 



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# File 'lib/randall/charclass.rb', line 65

def xchar
  c = ['a', 'b', 'c', 'd', 'e']
  c += c.map(&:upcase)
end

#xdigit ⇒ Object 



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# File 'lib/randall/charclass.rb', line 70

def xdigit
  @@xdigit ||= self.digit + self.xchar
end