Class: Coopy::Unit

Inherits:
Object
  • Object
show all
Defined in:
lib/coopy/unit.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(l = -2,, r = -2,, p = -2)) ⇒ Unit

Returns a new instance of Unit.



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# File 'lib/coopy/unit.rb', line 9

def initialize(l = -2, r = -2, p = -2)
    @l = l;
    @r = r;
    @p = p;
end

Instance Attribute Details

#l ⇒ Object

integer



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# File 'lib/coopy/unit.rb', line 5

def l
  @l
end

#p ⇒ Object

integer



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# File 'lib/coopy/unit.rb', line 7

def p
  @p
end

#r ⇒ Object

integer



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# File 'lib/coopy/unit.rb', line 6

def r
  @r
end

Instance Method Details

#describe(i) ⇒ Object 



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# File 'lib/coopy/unit.rb', line 19

def describe(i)
  (i>=0) ? ("" + i.to_s) : "-"
end

#from_string(txt) ⇒ Object 



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# File 'lib/coopy/unit.rb', line 28

def from_string(txt)
  txt += "]"
  at = 0
  txt.each_char do |ch|
    case ch
    when /[0-9]/
      at *= 10;
      at += ch.to_i
    when '-'
      at = -1
    when '|'
      @p = at
      at = 0
    when ':'
      @l = at
      at = 0
    when ']'
      @r = at
      return true
    end
  end
  false
end

#lp ⇒ Object 



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# File 'lib/coopy/unit.rb', line 15

def lp
  (@p==-2) ? @l : @p
end

#to_s ⇒ Object 



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# File 'lib/coopy/unit.rb', line 23

def to_s
  return describe(@p) + "|" + describe(@l) + ":" + describe(@r) if (@p>=-1)
  describe(@l) + ":" + describe(@r)
end