Fixed crashing bug reported by Teresa Lam. Added tests so that I'm fairly

certain that no more crashing bugs exist.  Removed a marker for iffy code
after understanding that code via test cases.

source/org/thdl/tib/input/DuffPaneTest.java

@@ -93,6 +93,13 @@ public class DuffPaneTest extends TestCase {
         ensureKeysGiveCorrectWylie(in, out);
     }
 
+    private void noExceptions(String keys) {
+        dp.newDocument(); // initialize to a blank canvas.
+        fireKeysWithoutModifiers(keys);
+        // no assertion -- if an exception happens, then and only then
+        // the test fails.
+    }
+
     private void ensureKeysGiveCorrectWylie(String keys, String wylie) {
         dp.newDocument(); // initialize to a blank canvas.
         fireKeysWithoutModifiers(keys);
@@ -803,6 +810,18 @@ public class DuffPaneTest extends TestCase {
 */
     }
 
+    public void testNoKeysCrashUs() {
+        /* why 130? because we want to try some extended ASCII
+           characters to make sure that they don't crash us either */
+        char max = (char)130;
+        for (char ch = 0; ch < max; ch++) {
+            noExceptions("" + ch);
+            for (char ch2 = 0; ch2 < max; ch2++) {
+                noExceptions("" + ch + ch2);
+            }
+        }
+    }
+
     public void testDisambiguation() {
         ensureKeysGiveCorrectWylie("gya");
         ensureKeysGiveCorrectWylie("g.ya");

source/org/thdl/tib/text/TibetanMachineWeb.java

@@ -212,7 +212,7 @@ public class TibetanMachineWeb implements THDLWylieConstants {
     /** comma-delimited list of supported punctuation and
         miscellaneous characters: */
     private static final String others
-            = "_, ,/,|,!,:,;,@,#,$,%,(,),H,M,&,@#,?,=,[,],{,},*,~X,X"; // FIXME: not yet supporting all these...
+            = "_, ,/,|,!,:,;,@,#,$,%,(,),H,M,&,@#,?,=,{,},*,~X,X"; // FIXME: not yet supporting all these...
 
     /** comma-delimited list of supported vowels: */
     private static final String vowels