Class: Plurimath::Formatter::Numbers::Significant

Inherits:
Object
  • Object
show all
Defined in:
lib/plurimath/formatter/numbers/significant.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(symbols) ⇒ Significant

Returns a new instance of Significant.



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# File 'lib/plurimath/formatter/numbers/significant.rb', line 9

def initialize(symbols)
  @symbols = symbols
  @decimal = symbols[:decimal]
  @significant = symbols[:significant].to_i
end

Instance Attribute Details

#decimal ⇒ Object

Returns the value of attribute decimal.



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# File 'lib/plurimath/formatter/numbers/significant.rb', line 7

def decimal
  @decimal
end

#significant ⇒ Object

Returns the value of attribute significant.



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# File 'lib/plurimath/formatter/numbers/significant.rb', line 7

def significant
  @significant
end

#symbols ⇒ Object

Returns the value of attribute symbols.



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# File 'lib/plurimath/formatter/numbers/significant.rb', line 7

def symbols
  @symbols
end

Instance Method Details

#apply(string, int_format, frac_format) ⇒ Object 



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# File 'lib/plurimath/formatter/numbers/significant.rb', line 15

def apply(string, int_format, frac_format)
  return string if significant.zero?
  return string unless string.match?(/[1-9]/)
  chars = string.split("")

  return string if count_chars(chars, true) == significant

  string = signify(chars)
  integer, fraction = string.split(decimal)
  string = [format_groups(int_format, integer)]
  string << format_groups(frac_format, fraction) if fraction
  string.join(decimal)
end