fix #4641: wrong sort order in caches filter

1 files changed, 13 insertions, 0 deletions

diff --git a/main/src/cgeo/geocaching/utils/TextUtils.java b/main/src/cgeo/geocaching/utils/TextUtils.java
index 04a9007..9fc960c 100644
--- a/main/src/cgeo/geocaching/utils/TextUtils.java
+++ b/main/src/cgeo/geocaching/utils/TextUtils.java
@@ -8,6 +8,7 @@ import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import org.eclipse.jdt.annotation.Nullable;
 
 import java.nio.charset.Charset;
+import java.text.Collator;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.zip.CRC32;
@@ -183,4 +184,16 @@ public final class TextUtils {
         checksum.update(input.getBytes(CHARSET_UTF8));
         return checksum.getValue();
     }
+
+    /**
+     * Build a Collator instance appropriate for comparing strings using the default locale while ignoring the casing.
+     *
+     * @return a collator
+     */
+    public static Collator getCollator() {
+        final Collator collator = Collator.getInstance();
+        collator.setDecomposition(Collator.CANONICAL_DECOMPOSITION);
+        collator.setStrength(Collator.TERTIARY);
+        return collator;
+    }
 }