Class: RegExpr::Repeat

Inherits:
Segment show all
Defined in:
lib/regexpr.rb

Overview

/VALUEMIN,MAX/

Constant Summary collapse

SimpleChar = 




Instance Attribute Summary collapse



Attributes inherited from Segment


#value



Instance Method Summary
collapse




Methods inherited from Segment


deepest, #empty?, #names, nooptimize, novalue, optimize




Constructor Details





#initialize(value, min = 1, max = min) ⇒ Repeat







Returns a new instance of Repeat.















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# File 'lib/regexpr.rb', line 277

def initialize value, min= 1, max= min
	super value
	@min, @max= self.minandmax( min), self.minandmax( max)
end













Instance Attribute Details






#max ⇒ Object (readonly)







Returns the value of attribute max.















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# File 'lib/regexpr.rb', line 262

def max
  @max
end













#min ⇒ Object (readonly)







Returns the value of attribute min.















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# File 'lib/regexpr.rb', line 262

def min
  @min
end













Instance Method Details





#minandmax(x) ⇒ Object










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# File 'lib/regexpr.rb', line 264

def minandmax x
	case x
	when nil, ''  then nil
	else x.to_i
	end
end












#optimize ⇒ Object










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# File 'lib/regexpr.rb', line 271

def optimize
	super
	r = (min == 1 and max == 1) ? @value : self
	r
end












#to_r ⇒ Object










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# File 'lib/regexpr.rb', line 282

def to_r
	t= '{%s,%s}'% [ @min||'', @max||'' ]
	return ''  if '{0,0}' == t
	@value.to_r+ (SimpleChar[ t] || t)
end