Fixed issue 34: Behavior of Text Filter is unpredictable when "regular expression" mode is enabled.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@766 7d457c2a-affb-35e4-300a-418c747d4874

CHANGES.txt

@@ -1,3 +1,10 @@
+Ongoing
+
+Fixes:
+- Issue 34: "Behavior of Text Filter is unpredictable when "regular expression" mode is enabled."
+  Regex was not compiled with case insensitivity flag.
+   
+
 1.0.1 Release (May 12, 2010)
 
 Fixes:

src/main/java/com/metaweb/gridworks/browsing/facets/TextSearchFacet.java

@@ -58,19 +58,16 @@ public class TextSearchFacet implements Facet {
         _mode = o.getString("mode");
         _caseSensitive = o.getBoolean("caseSensitive");
         if (_query != null) {
-            _query = _query.trim();
-            if (_query.length() > 0) {
-                if (!_caseSensitive) {
-                    _query = _query.toLowerCase();
-                }
-                
-                if ("regex".equals(_mode)) {
-                    try {
-                        _pattern = Pattern.compile(_query);
-                    } catch (java.util.regex.PatternSyntaxException e) {
-                        //e.printStackTrace();
-                    }
+            if ("regex".equals(_mode)) {
+                try {
+                    _pattern = Pattern.compile(
+                    		_query, 
+                    		_caseSensitive ? 0 : Pattern.CASE_INSENSITIVE);
+                } catch (java.util.regex.PatternSyntaxException e) {
+                    e.printStackTrace();
                 }
+            } else if (!_caseSensitive) {
+        		_query = _query.toLowerCase();
             }
         }
     }