Module: Kwartz::CharacterType

Included in:
PresentationLogicParser
Defined in:
lib/kwartz/parser.rb

Instance Method Summary collapse

Instance Method Details

#is_alpha(ch) ⇒ Object 



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# File 'lib/kwartz/parser.rb', line 26

def is_alpha(ch)
  return (?a <= ch && ch <= ?z) || (?A <= ch && ch <= ?Z)
end

#is_digit(ch) ⇒ Object 



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# File 'lib/kwartz/parser.rb', line 31

def is_digit(ch)
  return ?0 <= ch && ch <= ?9
end

#is_identchar(ch) ⇒ Object 



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# File 'lib/kwartz/parser.rb', line 36

def is_identchar(ch)
  return is_alpha(ch) || is_digit(ch) || ch == ?_
end

#is_whitespace(ch) ⇒ Object 



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# File 'lib/kwartz/parser.rb', line 21

def is_whitespace(ch)
  return ch == ?\  || ch == ?\t || ch == ?\n || ch == ?\r
end