Class: RegexpTree::Rep

Inherits:
RegexpTree show all
Defined in:
lib/regexptree.rb

Constant Summary

Constants inherited from RegexpTree

EmptySequence, EmptySet

Instance Method Summary collapse

Methods inherited from RegexpTree

#*, #+, alt, backref, charclass, #closure, #empty_sequence?, #empty_set?, #group, inherited, #inspect, linebeg, lineend, #lookahead, #negative_lookahead, non_word_boundary, #nongreedy_closure, #nongreedy_ntimes, #nongreedy_optional, #nongreedy_positive_closure, #nongreedy_rep, #ntimes, #optional, #paren, #parenthesize, #positive_closure, #pretty_print, previous_match, #regexp, #rep, rep, seq, str, strbeg, strend, strlineend, #to_s, word_boundary, #|

Constructor Details

#initialize(r, m = 0, n = nil, greedy = true) ⇒ Rep

Returns a new instance of Rep.



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# File 'lib/regexptree.rb', line 291

def initialize(r, m=0, n=nil, greedy=true)
  @r = r
  @m = m
  @n = n
  @greedy = greedy
end

Instance Method Details

#case_insensitive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/regexptree.rb', line 298

def case_insensitive?
  @r.case_insensitive?
end

#downcase ⇒ Object 



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# File 'lib/regexptree.rb', line 306

def downcase
  Rep.new(@r.downcase, @m, @n, @greedy)
end

#multiline_insensitive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/regexptree.rb', line 302

def multiline_insensitive?
  @r.multiline_insensitive?
end

#pretty_format(out) ⇒ Object 



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# File 'lib/regexptree.rb', line 310

def pretty_format(out)
  @r.parenthesize(Elt).pretty_format(out)
  case @m
  when 0
    case @n
	when 0
	  out.text '{0}'
	when 1
	  out.text '?'
	when nil
	  out.text '*'
	else
	  out.text "{#{@m},#{@n}}"
	end
  when 1
    case @n
	when 1
	when nil
	  out.text '+'
	else
	  out.text "{#{@m},#{@n}}"
	end
  else
	if @m == @n
	  out.text "{#{@m}}"
	else
	  out.text "{#{@m},#{@n}}"
	end
  end
  out.text '?' unless @greedy
end