class ABNF::Elt
Public Instance Methods
*(n)
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# File lib/abnf/grammar.rb, line 23 def *(n) case n when Integer rep(n, n) when Range rep(n.first, n.last - (n.exclude_end? ? 1 : 0)) else raise TypeError.new("Integer or Range expected: #{n}") end end
+(other)
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# File lib/abnf/grammar.rb, line 15 def +(other) Seq.new(self, other) end
empty_sequence?()
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A variable is assumed as not empty sequence.
# File lib/abnf/grammar.rb, line 11 def empty_sequence? false end
empty_set?()
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A variable is assumed as not empty set.
# File lib/abnf/grammar.rb, line 6 def empty_set? false end
remove_left_recursion(n)
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# File lib/abnf/regexp.rb, line 168 def remove_left_recursion(n) nonrec, rest = split_left_recursion(n) Seq.new(nonrec, rest.rep) end
remove_right_recursion(n)
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# File lib/abnf/regexp.rb, line 173 def remove_right_recursion(n) nonrec, rest = split_right_recursion(n) Seq.new(rest.rep, nonrec) end
rep(min=0, max=nil, greedy=true)
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# File lib/abnf/grammar.rb, line 34 def rep(min=0, max=nil, greedy=true) Rep.new(self, min, max, greedy) end
|(other)
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# File lib/abnf/grammar.rb, line 19 def |(other) Alt.new(self, other) end