int PhraseAlignment::Compare(const PhraseAlignment &other) const
{
if (this == &other) // comparing with itself
return 0;
if (GetTarget() != other.GetTarget())
return ( GetTarget() < other.GetTarget() ) ? -1 : +1;
if (GetSource() != other.GetSource())
return ( GetSource() < other.GetSource() ) ? -1 : +1;
if (!hierarchicalFlag)
return 0;
// loop over all words (note: 0 = left hand side of rule)
for(size_t i=0; i<phraseT.size()-1; i++) {
if (isNonTerminal( vcbT.getWord( phraseT[i] ) )) {
size_t thisAlign = *(alignedToT[i].begin());
size_t otherAlign = *(other.alignedToT[i].begin());
if (alignedToT[i].size() != 1 ||
other.alignedToT[i].size() != 1 ||
thisAlign != otherAlign)
{
int ret = (thisAlign < otherAlign) ? -1 : +1;
return ret;
}
}
}
return 0;
}
int PhraseAlignment::Compare(const PhraseAlignment &other) const
{
if (this == &other) // comparing with itself
return 0;
if (GetTarget() != other.GetTarget()) //先比的是目标端
return ( GetTarget() < other.GetTarget() ) ? -1 : +1;
if (GetSource() != other.GetSource())
return ( GetSource() < other.GetSource() ) ? -1 : +1;
return 0;
}
// check if two word alignments between a phrase pair are the same
bool PhraseAlignment::equals( const PhraseAlignment& other )
{
if (this == &other) return true;
if (other.GetTarget() != GetTarget()) return false;
if (other.GetSource() != GetSource()) return false;
if (other.alignedToT != alignedToT) return false;
if (other.alignedToS != alignedToS) return false;
return true;
}
// check if two word alignments between a phrase pairs "match"
// i.e. they do not differ in the alignment of non-termimals
bool PhraseAlignment::match( const PhraseAlignment& other )
{
if (this == &other) return true;
if (other.GetTarget() != GetTarget()) return false;
if (other.GetSource() != GetSource()) return false;
if (!hierarchicalFlag) return true;
assert(phraseT.size() == alignedToT.size() + 1);
assert(alignedToT.size() == other.alignedToT.size());
// loop over all words (note: 0 = left hand side of rule)
for(size_t i=0; i<phraseT.size()-1; i++) {
if (isNonTerminal( vcbT.getWord( phraseT[i] ) )) {
if (alignedToT[i].size() != 1 ||
other.alignedToT[i].size() != 1 ||
*(alignedToT[i].begin()) != *(other.alignedToT[i].begin()))
return false;
}
}
return true;
}