From 5d114bb3f03898f2aae571affe49c572f5b3f5ac Mon Sep 17 00:00:00 2001
From: mike <mike>
Date: Fri, 29 Nov 2002 16:43:23 +0000
Subject: [PATCH] Support Adam's new position configuration elements

---
 src/org/z3950/zing/cql/CQLTermNode.java |   40 ++++++++++++++++++++++++-------
 1 file changed, 31 insertions(+), 9 deletions(-)

diff --git a/src/org/z3950/zing/cql/CQLTermNode.java b/src/org/z3950/zing/cql/CQLTermNode.java
index 0f9d3a9..b5244d2 100644
--- a/src/org/z3950/zing/cql/CQLTermNode.java
+++ b/src/org/z3950/zing/cql/CQLTermNode.java
@@ -1,4 +1,4 @@
-// $Id: CQLTermNode.java,v 1.10 2002-11-20 15:38:27 mike Exp $
+// $Id: CQLTermNode.java,v 1.11 2002-11-29 16:43:23 mike Exp $
 
 package org.z3950.zing.cql;
 import java.util.Properties;
@@ -12,7 +12,7 @@ import java.util.Vector;
  * these must be provided - you can't have a qualifier without a
  * relation or vice versa.
  *
- * @version	$Id: CQLTermNode.java,v 1.10 2002-11-20 15:38:27 mike Exp $
+ * @version	$Id: CQLTermNode.java,v 1.11 2002-11-29 16:43:23 mike Exp $
  */
 public class CQLTermNode extends CQLNode {
     private String qualifier;
@@ -59,7 +59,18 @@ public class CQLTermNode extends CQLNode {
     public String toPQF(Properties config) throws PQFTranslationException {
 	Vector attrs = new Vector();
 
-	String attr;
+	// Do this first so that if any other truncation or
+	// completeness attributes are generated, they "overwrite"
+	// those specified here.
+	//
+	//  ###	This approach relies on an unpleasant detail of Index
+	//	Data's (admittedly definitive) implementation of PQF,
+	//	and should not relied upon.
+	//
+	String attr = config.getProperty("always");
+	if (attr != null)
+	    attrs.add(attr);
+
 	attr = config.getProperty("qualifier." + qualifier);
 	if (attr == null)
 	    throw new UnknownQualifierException(qualifier);
@@ -89,12 +100,27 @@ public class CQLTermNode extends CQLNode {
 	    attrs.add(attr);
 	}
 
-	String pos = "unanchored";
+	String pos = "any";
 	String text = term;
+	//System.err.println("before check: text='" + text + "'");
 	if (text.length() > 0 && text.substring(0, 1).equals("^")) {
+	    //System.err.println("first in field");
 	    text = text.substring(1);
-	    pos = "anchored";
+	    pos = "first";
+	}
+	//System.err.println("between checks: text='" + text + "'");
+	int len = text.length();
+	if (len > 0 && text.substring(len-1, len).equals("^")) {
+	    //System.err.println("last in field");
+	    text = text.substring(0, len-1);
+	    pos = pos.equals("first") ? "firstAndLast" : "last";
+	    // ### in the firstAndLast case, the standard
+	    //	pqf.properties file specifies that we generate a
+	    //	completeness=whole-field attributem, which means that
+	    //	we don't generate a position attribute at all.  Do we
+	    //	care?  Does it matter?
 	}
+	//System.err.println("after checks: text='" + text + "'");
 	attr = config.getProperty("position." + pos);
 	if (attr == null)
 	    throw new UnknownPositionException(pos);
@@ -105,10 +131,6 @@ public class CQLTermNode extends CQLNode {
 	    attr = config.getProperty("structure.*");
 	attrs.add(attr);
 
-	attr = config.getProperty("always");
-	if (attr != null)
-	    attrs.add(attr);
-
 	String s = "";
 	for (int i = 0; i < attrs.size(); i++) {
 	    attr = (String) attrs.get(i);
-- 
1.7.10.4