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Processing resources for annotating and normalising both Arabic and Roman numbers
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/*
 * Copyright (c) 2009-2011, The University of Sheffield.
 * 
 * This file is part of GATE (see http://gate.ac.uk/), and is free software,
 * Licensed under the GNU Library General Public License, Version 3, June 2007
 * (in the distribution as file licence.html, and also available at
 * http://gate.ac.uk/gate/licence.html).
 */
 
Phase: Ratios

Input: Number Token Measurement CannotBeAMeasurement
Options: control = appelt

Rule:Ignore
Priority: 1000
(
	{CannotBeAMeasurement}
)
-->
{}

/*
 * Assume that we won't find ratios inside already annotated measurements
 */ 
Rule: SkipMeasurements
Priority: 500
(
	{Measurement}
)
-->
{}


Rule: Percent
(
	({Number}):number
	({Token.string == "percent"}|{Token.string == "%"}|{Token.string == "pph"})
):percent
-->
{
  Annotation number = ((AnnotationSet)bindings.get("number")).iterator().next();
  AnnotationSet percent = (AnnotationSet)bindings.get("percent");
	
  try {
	boolean consumeNumberAnnotations = (Boolean)getActionContext().getPRFeatures().get("consumeNumberAnnotations");
	
	FeatureMap features = Factory.newFeatureMap();
	features.put("rule","ratioPercent");
	
	features.put("numerator", number.getFeatures().get("value"));
	features.put("denominator", 100D);
	
	Double value = ((Double)number.getFeatures().get("value"))/100D;
	
	features.put("value", value);
    
    outputAS.add(percent.firstNode().getOffset(),percent.lastNode().getOffset(),"Ratio", features);
    
    if (consumeNumberAnnotations) inputAS.remove(number);
  }
  catch (Exception e) {
    throw new NonFatalJapeException(e);
  }
}

Rule: PartsPerMillion
(
	({Number}):number
	(({Token.string == "parts"}{Token.string == "per"}{Token.string == "million"})|{Token.string == "ppm"})
):percent
-->
{
  Annotation number = ((AnnotationSet)bindings.get("number")).iterator().next();
  AnnotationSet percent = (AnnotationSet)bindings.get("percent");
	
  try {
	boolean consumeNumberAnnotations = (Boolean)getActionContext().getPRFeatures().get("consumeNumberAnnotations");
	
	FeatureMap features = Factory.newFeatureMap();
	features.put("rule","ratioPartsPerMillion");
	
	features.put("numerator", number.getFeatures().get("value"));
	features.put("denominator", 1000000D);
	
	Double value = ((Double)number.getFeatures().get("value"))/1000000D;
	
	features.put("value", value);
    
    outputAS.add(percent.firstNode().getOffset(),percent.lastNode().getOffset(),"Ratio", features);
    
    if (consumeNumberAnnotations) inputAS.remove(number);
  }
  catch (Exception e) {
    throw new NonFatalJapeException(e);
  }
}