private void ReadHeadRules(string file)
{
#if DNF
using (var headRulesStreamReader = new StreamReader(file, System.Text.Encoding.UTF7))
#else
using (var stream = new FileStream(file, FileMode.OpenOrCreate))
using (var headRulesStreamReader = new StreamReader(stream, System.Text.Encoding.UTF7))
#endif
{
string line = headRulesStreamReader.ReadLine();
mHeadRules = new Dictionary <string, HeadRule>(30);
while (line != null)
{
var tokenizer = new Util.StringTokenizer(line);
string number = tokenizer.NextToken();
string type = tokenizer.NextToken();
string direction = tokenizer.NextToken();
var tags = new string[int.Parse(number, System.Globalization.CultureInfo.InvariantCulture)];
int currentTag = 0;
string tag = tokenizer.NextToken();
while (tag != null)
{
tags[currentTag] = tag;
currentTag++;
tag = tokenizer.NextToken();
}
mHeadRules[type] = new HeadRule((direction == "1"), tags);
line = headRulesStreamReader.ReadLine();
}
}
}
private void ReadHeadRules(string file)
{
using (StreamReader headRulesStreamReader = new StreamReader(file, System.Text.Encoding.UTF7))
{
string line = headRulesStreamReader.ReadLine();
mHeadRules = new Dictionary<string, HeadRule>(30);
while (line != null)
{
Util.StringTokenizer tokenizer = new Util.StringTokenizer(line);
string number = tokenizer.NextToken();
string type = tokenizer.NextToken();
string direction = tokenizer.NextToken();
string[] tags = new string[int.Parse(number, System.Globalization.CultureInfo.InvariantCulture)];
int currentTag = 0;
string tag = tokenizer.NextToken();
while (tag != null)
{
tags[currentTag] = tag;
currentTag++;
tag = tokenizer.NextToken();
}
mHeadRules[type] = new HeadRule((direction == "1"), tags);
line = headRulesStreamReader.ReadLine();
}
}
}
public virtual Parse GetHead(Parse[] constituents, string type)
{
if (constituents[0].Type == MaximumEntropyParser.TokenNode)
{
return(null);
}
if (type == CoordinationTransformer.Noun || type == AbstractCollinsHeadFinder.NX)
{
var tags1 = new string[]
{
PartsOfSpeech.NounSingularOrMass, PartsOfSpeech.ProperNounSingular, PartsOfSpeech.ProperNounPlural,
PartsOfSpeech.NounPlural, AbstractCollinsHeadFinder.NX, PartsOfSpeech.AdjectiveComparative,
PartsOfSpeech.PossessiveEnding
};
for (int currentConstituent = constituents.Length - 1; currentConstituent >= 0; currentConstituent--)
{
for (int currentTag = tags1.Length - 1; currentTag >= 0; currentTag--)
{
if (constituents[currentConstituent].Type.Equals(tags1[currentTag]))
{
return(constituents[currentConstituent].Head);
}
}
}
for (int currentConstituent = 0; currentConstituent < constituents.Length; currentConstituent++)
{
if (constituents[currentConstituent].Type.Equals(CoordinationTransformer.Noun))
{
return(constituents[currentConstituent].Head);
}
}
var tags2 = new string[] { PartsOfSpeech.DollarSign, CoordinationTransformer.Adjective, AbstractCollinsHeadFinder.PRN };
for (int currentConstituent = constituents.Length - 1; currentConstituent >= 0; currentConstituent--)
{
for (int currentTag = tags2.Length - 1; currentTag >= 0; currentTag--)
{
if (constituents[currentConstituent].Type.Equals(tags2[currentTag]))
{
return(constituents[currentConstituent].Head);
}
}
}
var tags3 = new string[] { PartsOfSpeech.Adjective, PartsOfSpeech.AdjectiveSuperlative, PartsOfSpeech.Adverb, AbstractCollinsHeadFinder.QP };
for (int currentConstituent = constituents.Length - 1; currentConstituent >= 0; currentConstituent--)
{
for (int currentTag = tags3.Length - 1; currentTag >= 0; currentTag--)
{
if (constituents[currentConstituent].Type.Equals(tags3[currentTag]))
{
return(constituents[currentConstituent].Head);
}
}
}
return(constituents[constituents.Length - 1].Head);
}
else
{
if (mHeadRules.ContainsKey(type))
{
HeadRule headRule = mHeadRules[type];
string[] tags = headRule.Tags;
int constituentCount = constituents.Length;
int tagCount = tags.Length;
if (headRule.LeftToRight)
{
for (int currentTag = 0; currentTag < tagCount; currentTag++)
{
for (int currentConstituent = 0; currentConstituent < constituentCount; currentConstituent++)
{
if (constituents[currentConstituent].Type.Equals(tags[currentTag]))
{
return(constituents[currentConstituent].Head);
}
}
}
return(constituents[0].Head);
}
else
{
for (int currentTag = 0; currentTag < tagCount; currentTag++)
{
for (int currentConstituent = constituentCount - 1; currentConstituent >= 0; currentConstituent--)
{
if (constituents[currentConstituent].Type.Equals(tags[currentTag]))
{
return(constituents[currentConstituent].Head);
}
}
}
return(constituents[constituentCount - 1].Head);
}
}
}
return(constituents[constituents.Length - 1].Head);
}
