package edu.stanford.nlp.time;
import edu.stanford.nlp.ling.tokensregex.CoreMapExpressionExtractor;
import edu.stanford.nlp.util.CoreMap;
/**
* Interface for rules/patterns for transforming
* time related natural language expressions
* into temporal representations.
*
* Patterns use the TokensRegex language.
*
* @author Angel Chang
*/
public interface TimeExpressionPatterns {
/**
* Creates a CoreMapExpressionExtractor that knows how
* to extract time related expressions from text into CoreMaps
* @return CoreMapExpressionExtractor
*/
CoreMapExpressionExtractor createExtractor();
/**
* Determine how date/times should be resolved for the given temporal
* expression and its context
* @param annotation Annotation from which the temporal express was extracted (context)
* @param te Temporal expression
* @return flag indicating what resolution scheme to use
*/
int determineRelFlags(CoreMap annotation, TimeExpression te);
}