"blockquote"><p>
              The overall complexity of the alternative parser is defined by the
              sum of the complexities of its elements. The complexity of the alternative
              parser itself is O(N), where N is the number of alternatives.
            </p></blockquote></div>
<h6>
<a name="spirit.qi.reference.operator.alternative.h6"></a>
            <span class="phrase"><a name="spirit.qi.reference.operator.alternative.example"></a></span><a class="link" href="alternative.html#spirit.