class Pione::Lang::DataExprSequence
Public Instance Methods
accept_nonexistence?()
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Return true if the sequence accepts null.
# File lib/pione/lang/data-expr.rb, line 99 def accept_nonexistence? pieces.any?{|piece| piece.accept_nonexistence?} end
assertive?()
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Return true if the sequence has no null.
# File lib/pione/lang/data-expr.rb, line 104 def assertive? not(pieces.all?{|piece| piece.kind_of? DataExprNull}) end
match(name)
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Match if the name is matched one of elements.
# File lib/pione/lang/data-expr.rb, line 109 def match(name) pieces.inject(nil) {|res, piece| res ? res : piece.match(name)} end
Also aliased as: "==="
match?(name)
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Return true if the name matched.
# File lib/pione/lang/data-expr.rb, line 115 def match?(name) match(name) ? true : false end
Also aliased as: "=~"
textize()
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# File lib/pione/lang/data-expr.rb, line 121 def textize "(<d>%s)" % pieces.map {|piece| "'%s'" % piece.pattern}.join("|") end