edu.stanford.nlp.international.spanish

Class SpanishVerbStripper

java.lang.Object

edu.stanford.nlp.international.spanish.SpanishVerbStripper

All Implemented Interfaces:

java.io.Serializable

public final class SpanishVerbStripper
extends java.lang.Object
implements java.io.Serializable

Provides a utility function for removing attached pronouns from Spanish verb forms.

Author:

Jon Gauthier, Ishita Prasad

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SpanishVerbStripper.StrippedVerb A struct describing the result of verb stripping.

Method Summary

Modifier and Type	Method and Description
static SpanishVerbStripper	getInstance() Singleton pattern function for getting a default verb stripper.
static SpanishVerbStripper	getInstance(java.lang.String dictPath) Singleton pattern function for getting a verb stripper based on the dictionary at dictPath.
static boolean	isStrippable(java.lang.String word) Determine if the given word is a verb which needs to be stripped.
SpanishVerbStripper.StrippedVerb	separatePronouns(java.lang.String verb) Attempt to separate attached pronouns from the given verb.
java.lang.String	stripVerb(java.lang.String verb) Remove attached pronouns from a strippable Spanish verb form.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static SpanishVerbStripper getInstance()

Singleton pattern function for getting a default verb stripper.

getInstance

public static SpanishVerbStripper getInstance(java.lang.String dictPath)

Singleton pattern function for getting a verb stripper based on the dictionary at dictPath.

Parameters:

dictPath - the path to the dictionary for this verb stripper.

isStrippable

public static boolean isStrippable(java.lang.String word)

Determine if the given word is a verb which needs to be stripped.

separatePronouns

public SpanishVerbStripper.StrippedVerb separatePronouns(java.lang.String verb)

Attempt to separate attached pronouns from the given verb.

Parameters:

verb - Spanish verb

Returns:

Returns a StrippedVerb struct/tuple (originalStem, normalizedStem, pronouns), or null if no pronouns could be located and separated.

• originalStem: The verb stem simply split from the following pronouns.
• normalizedStem: The verb stem normalized to dictionary form, i.e. in the form it would appear with the same conjugation but no pronouns.
• pronouns: Pronouns which were attached to the verb.

stripVerb

public java.lang.String stripVerb(java.lang.String verb)

Remove attached pronouns from a strippable Spanish verb form. (Use isStrippable(String) to determine if a word is a strippable verb.) Converts, e.g.,

• decírmelo -> decir
• mudarse -> mudar
• contándolos -> contando
• hazlo -> haz

Returns:

A verb form stripped of attached pronouns, or null if no pronouns were located / stripped.