fdo#85889 handle pc, pca and mac rtf keywords in writerfilter

Change-Id: Ic54f2233a37562bdc516e440af0b4b7973f56342

sw/qa/extras/rtfimport/data/fdo85889-mac.rtf

+{\rtf1\mac \deff0{\fonttbl{\f0\fmodern Helvetica;}}
+\pard\f0\fs20 \'f1\'f2\'f3\par
+}

sw/qa/extras/rtfimport/data/fdo85889-pc.rtf

+{\rtf1\pc \deff0{\fonttbl{\f0\fmodern Helvetica;}}
+\pard\f0\fs20 \'f1\'f2\'f3\par
+}

sw/qa/extras/rtfimport/data/fdo85889-pca.rtf

+{\rtf1\pca \deff0{\fonttbl{\f0\fmodern Helvetica;}}
+\pard\f0\fs20 \'f1\'f2\'f3\par
+}

sw/qa/extras/rtfimport/rtfimport.cxx

@@ -2181,6 +2181,32 @@ DECLARE_RTFIMPORT_TEST(testChtOutlineNumberingRtf, "chtoutline.rtf")
     CPPUNIT_ASSERT_EQUAL(OUString(aExpectedPrefix,SAL_N_ELEMENTS(aExpectedPrefix)), aPrefix);
     CPPUNIT_ASSERT_EQUAL(OUString(aExpectedSuffix,SAL_N_ELEMENTS(aExpectedSuffix)), aSuffix);
 }
+
+DECLARE_RTFIMPORT_TEST(testFdo85889pc, "fdo85889-pc.rtf")
+{
+    uno::Reference<text::XTextRange> xTextRange = getRun(getParagraph(1), 1);
+
+    OUString aExpected("\xc2\xb1\xe2\x89\xa5\xe2\x89\xa4", 8, RTL_TEXTENCODING_UTF8);
+    CPPUNIT_ASSERT_EQUAL(aExpected, xTextRange->getString());
+}
+
+DECLARE_RTFIMPORT_TEST(testFdo85889pca, "fdo85889-pca.rtf")
+{
+    uno::Reference<text::XTextRange> xTextRange = getRun(getParagraph(1), 1);
+
+    OUString aExpected("\xc2\xb1\xe2\x80\x97\xc2\xbe", 7, RTL_TEXTENCODING_UTF8);
+    CPPUNIT_ASSERT_EQUAL(aExpected, xTextRange->getString());
+}
+
+DECLARE_RTFIMPORT_TEST(testFdo85889mac, "fdo85889-mac.rtf")
+{
+    uno::Reference<text::XTextRange> xTextRange = getRun(getParagraph(1), 1);
+
+    OUString aExpected("\xc3\x92\xc3\x9a\xc3\x9b", 6, RTL_TEXTENCODING_UTF8);
+    CPPUNIT_ASSERT_EQUAL(aExpected, xTextRange->getString());
+}
+
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

writerfilter/source/rtftok/rtfdocumentimpl.cxx

@@ -2913,6 +2913,18 @@ int RTFDocumentImpl::dispatchFlag(RTFKeyword nKeyword)
     case RTF_ANSI:
         m_aStates.top().nCurrentEncoding = RTL_TEXTENCODING_MS_1252;
         break;
+    case RTF_MAC:
+        m_nCurrentEncoding = RTL_TEXTENCODING_APPLE_ROMAN;
+        m_aStates.top().nCurrentEncoding = m_nCurrentEncoding;
+        break;
+    case RTF_PC:
+        m_nCurrentEncoding = RTL_TEXTENCODING_IBM_437;
+        m_aStates.top().nCurrentEncoding = m_nCurrentEncoding;
+        break;
+    case RTF_PCA:
+        m_nCurrentEncoding = RTL_TEXTENCODING_IBM_850;
+        m_aStates.top().nCurrentEncoding = m_nCurrentEncoding;
+        break;
     case RTF_PLAIN:
     {
         m_aStates.top().aCharacterSprms = getDefaultState().aCharacterSprms;