LOTS of changes. Biggies include proper support for relations, including

[cql-java-moved-to-github.git] / src / org / z3950 / zing / cql / CQLTermNode.java

diff --git a/src/org/z3950/zing/cql/CQLTermNode.java b/src/org/z3950/zing/cql/CQLTermNode.java
index 625aab0..5c149a9 100644 (file)
--- a/src/org/z3950/zing/cql/CQLTermNode.java
+++ b/src/org/z3950/zing/cql/CQLTermNode.java
@@ -1,54 +1,56 @@
-// $Id: CQLTermNode.java,v 1.2 2002-10-25 16:01:26 mike Exp $
+// $Id: CQLTermNode.java,v 1.5 2002-10-30 09:19:26 mike Exp $
 
 package org.z3950.zing.cql;
 
 
 /**
- * Represents a terminal node in a CQL parse-tree ...
+ * Represents a terminal node in a CQL parse-tree.
  * ###
  *
- * @version    $Id: CQLTermNode.java,v 1.2 2002-10-25 16:01:26 mike Exp $
+ * @version    $Id: CQLTermNode.java,v 1.5 2002-10-30 09:19:26 mike Exp $
  */
 public class CQLTermNode extends CQLNode {
     private String qualifier;
-    private String relation;
-    private String value;
+    private CQLRelation relation;
+    private String term;
 
-    public CQLTermNode(String qualifier, String relation, String value) {
+    public CQLTermNode(String qualifier, CQLRelation relation, String term) {
        this.qualifier = qualifier;
        this.relation = relation;
-       this.value = value;
+       this.term = term;
     }
 
     String toXCQL(int level) {
        return (indent(level) + "<searchClause>\n" +
-               indent(level+1) + "<index>" + qualifier + "<index>\n" +
-               indent(level+1) + "<relation>" + relation + "<relation>\n" +
-               indent(level+1) + "<term>" + value + "<term>\n" +
+               indent(level+1) + "<index>" + xq(qualifier) + "</index>\n" +
+               relation.toXCQL(level+1) +
+               indent(level+1) + "<term>" + xq(term) + "</term>\n" +
                indent(level) + "</searchClause>\n");
     }
 
     String toCQL() {
-       String res = value;
+       String quotedQualifier = maybeQuote(qualifier);
+       String quotedTerm = maybeQuote(term);
 
-       if (res.indexOf('"') != -1) {
-           // ### precede each '"' with a '/'
-       }
+       // ### We don't always need spaces around `relation'.
+       return quotedQualifier + " " + relation.toCQL() + " " + quotedTerm;
+    }
 
-       if (res.indexOf('"') != -1 ||
-           res.indexOf(' ') != -1 ||
-           res.indexOf('\t') != -1 ||
-           res.indexOf('=') != -1 ||
-           res.indexOf('<') != -1 ||
-           res.indexOf('>') != -1 ||
-           res.indexOf('/') != -1 ||
-           res.indexOf('(') != -1 ||
-           res.indexOf(')') != -1) {
-           res = '"' + res + '"';
+    static String maybeQuote(String str) {
+       // There _must_ be a better way to make this test ...
+       if (str.length() == 0 ||
+           str.indexOf('"') != -1 ||
+           str.indexOf(' ') != -1 ||
+           str.indexOf('\t') != -1 ||
+           str.indexOf('=') != -1 ||
+           str.indexOf('<') != -1 ||
+           str.indexOf('>') != -1 ||
+           str.indexOf('/') != -1 ||
+           str.indexOf('(') != -1 ||
+           str.indexOf(')') != -1) {
+           str = '"' + replace(str, "\"", "\\\"") + '"';
        }
 
-       // ### The qualifier may need quoting.
-       // ### We don't always need spaces around `relation'.
-       return qualifier + " " + relation + " " + value;
+       return str;
     }
 }