Support Adam's new position configuration elements

diff --git a/src/org/z3950/zing/cql/CQLTermNode.java b/src/org/z3950/zing/cql/CQLTermNode.java
index 0f9d3a9..b5244d2 100644 (file)
--- 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);