class Regexp::Expression::Sequence
branches.
Used as the base class for the Alternation alternatives and Conditional
a whole subexpression.
quantifiers, as it applies them to its last element instead of itself as
A sequence of expressions. Differs from a Subexpressions by how it handles
def initialize(level, set_level, conditional_level)
def initialize(level, set_level, conditional_level) super Regexp::Token.new( :expression, :sequence, '', nil, # ts nil, # te level, set_level, conditional_level ) end
def quantify(token, text, min = nil, max = nil, mode = :greedy)
def quantify(token, text, min = nil, max = nil, mode = :greedy) offset = -1 target = expressions[offset] while target and target.is_a?(FreeSpace) target = expressions[offset -= 1] end raise ArgumentError.new("No valid target found for '#{text}' " + "quantifier") unless target target.quantify(token, text, min, max, mode) end
def starts_at
def starts_at @expressions.first.starts_at end
def text
def text to_s end