ICU-1048 fix compound inverses with parenthesized atoms

X-SVN-Rev: 5510

icu4c/source/i18n/translit.cpp

@@ -925,6 +925,11 @@ Transliterator* Transliterator::parseID(const UnicodeString& ID,
         }
         // assert(revLimit < ID.length() && ID.charAt(revLimit) == ')');
         limit = revLimit+1;
+    } else {
+        // Ignore () exprs outside of this atomic ID, that is, in
+        // "Greek-Latin; Title()", ignore the "()" after Title when
+        // parsing Greek-Latin.
+        revStart = -1;
     }
 
     // Advance limit past /\s*;?\s*/

icu4c/source/test/intltest/transtst.cpp

@@ -70,6 +70,7 @@ TransliteratorTest::runIndexedTest(int32_t index, UBool exec,
         TESTCASE(34,TestSupplemental);
         TESTCASE(35,TestQuantifier);
         TESTCASE(36,TestSTV);
+        TESTCASE(37,TestCompoundInverse);
         default: name = ""; break;
     }
 }
@@ -1624,6 +1625,27 @@ void TransliteratorTest::TestSTV(void) {
     }
 }
 
+/**
+ * Test inverse of Greek-Latin; Title()
+ */
+void TransliteratorTest::TestCompoundInverse(void) {
+    Transliterator *t = Transliterator::createInstance
+        ("Greek-Latin; Title()", UTRANS_REVERSE);
+    if (t == 0) {
+        errln("FAIL: crateInstance");
+        return;
+    }
+    UnicodeString exp("(Title);Latin-Greek");
+    if (t->getID() == exp) {
+        logln("Ok: inverse of \"Greek-Latin; Title()\" is \"" +
+              t->getID());
+    } else {
+        errln("FAIL: inverse of \"Greek-Latin; Title()\" is \"" +
+              t->getID() + "\", expected \"" + exp + "\"");
+    }
+    delete t;
+}
+
 //======================================================================
 // Support methods
 //======================================================================

icu4c/source/test/intltest/transtst.h

@@ -179,6 +179,8 @@ class TransliteratorTest : public IntlTest {
      */
     void TestSTV(void);
 
+    void TestCompoundInverse(void);
+
     //======================================================================
     // Support methods
     //======================================================================