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//#define XERR
#include "fpattern.ih"
FPattern FPattern::optionalFPatterns(States &states, FPattern &fpattern,
size_t lower, size_t upper,
PairVector &beginEnd)
{
// dup the remaining fpatterns, allowing for intermediate ejects
Map eject;
copyFPattern(states, lower, upper, eject, beginEnd);
// add jumps to the end of the fpattern dupped last
jumpToEnd(states, beginEnd, lower, upper, eject);
// join all fpatterns, the first fpattern being `fpattern' (=semval)
join(states, fpattern, upper, beginEnd);
// begin/end must be updated to the final indices
FPattern ret( {fpattern.begin(), fpattern.end()} );
return ret;
}
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