Class: TwitterCldr::Parsers::UnicodeRegexParser::Literal

Inherits:
Component
  • Object
show all
Defined in:
lib/twitter_cldr/parsers/unicode_regex/literal.rb

Constant Summary collapse

SPECIAL_CHARACTERS = 
{
  "s" => [32],  # space
  "t" => [9],   # tab
  "r" => [13],  # carriage return
  "n" => [10],  # newline
  "f" => [12],  # form feed
  "d" => ("0".."9").to_a.map { |c| ordinalize(c) },
  "w" => (("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a + ["_"]).map { |c| ordinalize(c) }
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text) ⇒ Literal

Returns a new instance of Literal.



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 33

def initialize(text)
  @text = text
end

Instance Attribute Details

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 11

def text
  @text
end

Class Method Details

.ordinalize(char) ⇒ Object

ord is good enough (don’t need unpack) because ASCII chars have the same numbers as their unicode equivalents



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 15

def self.ordinalize(char)
  if char.respond_to?(:ord)
    char.ord
  else
    char[0]
  end
end

Instance Method Details

#to_regexp_str ⇒ Object 



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 37

def to_regexp_str
  text
end

#to_s ⇒ Object 



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 59

def to_s
  text
end

#to_set ⇒ Object 



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 41

def to_set
  if text =~ /^\\/
    special_char = text[1..-1]

    if SPECIAL_CHARACTERS.include?(special_char.downcase)
      set_for_special_char(special_char)
    else
      TwitterCldr::Utils::RangeSet.from_array([
        self.class.ordinalize(special_char)
      ])
    end
  else
    TwitterCldr::Utils::RangeSet.from_array([
      self.class.ordinalize(text)
    ])
  end
end

#type ⇒ Object 



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# File 'lib/twitter_cldr/parsers/unicode_regex/literal.rb', line 63

def type
  :literal
end