+bool Output::canElideEmptySequence() {
+ // Normally, with an optional key/value where the value is an empty sequence,
+ // the whole key/value can be not written. But, that produces wrong yaml
+ // if the key/value is the only thing in the map and the map is used in
+ // a sequence. This detects if the this sequence is the first key/value
+ // in map that itself is embedded in a sequnce.
+ if (StateStack.size() < 2)
+ return true;
+ if (StateStack.back() != inMapFirstKey)
+ return true;
+ return (StateStack[StateStack.size()-2] != inSeq);
+}
+