edu.stanford.nlp.trees.ud

Class CoNLLUUtils

java.lang.Object

edu.stanford.nlp.trees.ud.CoNLLUUtils

public class CoNLLUUtils
extends java.lang.Object

Utility functions for reading and writing CoNLL-U files.

Author:

Sebastian Schuster

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CoNLLUUtils.DepIndexComparator
static class	CoNLLUUtils.FeatureNameComparator

Constructor Summary

Constructors

Constructor and Description
CoNLLUUtils()

Method Summary

Modifier and Type	Method and Description
static java.util.HashMap<java.lang.String,java.lang.String>	parseExtraDeps(java.lang.String extraDepsString) Parses the value of the extra dependencies column in a CoNLL-U file and returns them in a HashMap with the governor indices as keys and the relation names as values.
static java.util.HashMap<java.lang.String,java.lang.String>	parseFeatures(java.lang.String featureString) Parses the value of the feature column in a CoNLL-U file and returns them in a HashMap with the feature names as keys and the feature values as values.
static java.lang.String	toExtraDepsString(java.util.HashMap<java.lang.String,java.lang.String> extraDeps) Converts an extra dependencies hash map to a string to be used in a CoNLL-U file.
static java.lang.String	toFeatureString(java.util.HashMap<java.lang.String,java.lang.String> features) Converts a feature HashMap to a feature string to be used in a CoNLL-U file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CoNLLUUtils

public CoNLLUUtils()

Method Detail

parseFeatures

public static java.util.HashMap<java.lang.String,java.lang.String> parseFeatures(java.lang.String featureString)

Parses the value of the feature column in a CoNLL-U file and returns them in a HashMap with the feature names as keys and the feature values as values.

Parameters:

featureString -

Returns:

A HashMap<String,String> with the feature values.

toFeatureString

public static java.lang.String toFeatureString(java.util.HashMap<java.lang.String,java.lang.String> features)

Converts a feature HashMap to a feature string to be used in a CoNLL-U file.

Returns:

The feature string.

parseExtraDeps

public static java.util.HashMap<java.lang.String,java.lang.String> parseExtraDeps(java.lang.String extraDepsString)

Parses the value of the extra dependencies column in a CoNLL-U file and returns them in a HashMap with the governor indices as keys and the relation names as values.

Parameters:

extraDepsString -

Returns:

A HashMap<Integer,String> with the additional dependencies.

toExtraDepsString

public static java.lang.String toExtraDepsString(java.util.HashMap<java.lang.String,java.lang.String> extraDeps)

Converts an extra dependencies hash map to a string to be used in a CoNLL-U file.

Parameters:

extraDeps -

Returns:

The extra dependencies string.