[PATCH 3/3] xmllite/writer: Implement WriteSurrogateCharEntity.

[David Kahurani]

From: David Kahurani

Signed-off-by: David Kahurani 
---
 dlls/xmllite/tests/writer.c | 56 +++++++++++++++++++++++++++++++++++--
 dlls/xmllite/writer.c       | 31 ++++++++++++++++++--
 2 files changed, 82 insertions(+), 5 deletions(-)

diff --git a/dlls/xmllite/tests/writer.c b/dlls/xmllite/tests/writer.c
index 9a767dc4cc8..4f80a1ad886 100644
--- a/dlls/xmllite/tests/writer.c
+++ b/dlls/xmllite/tests/writer.c
@@ -138,6 +138,8 @@ static void check_writer_state(IXmlWriter *writer, HRESULT exp_hr)
 {
     IXmlReader *reader;
     HRESULT hr;
+    WCHAR low = 0xdcef;
+    WCHAR high = 0xdaff;

hr = CreateXmlReader(&IID_IXmlReader, (void **)&reader, NULL);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
@@ -217,7 +219,8 @@ static void check_writer_state(IXmlWriter *writer, HRESULT exp_hr)
     hr = IXmlWriter_WriteString(writer, L"a");
     ok(hr == exp_hr, "Unexpected hr %#lx, expected %#lx.\n", hr, exp_hr);

-    /* FIXME: add WriteSurrogateCharEntity */
+    hr = IXmlWriter_WriteSurrogateCharEntity(writer, low, high);
+    ok(hr == exp_hr, "Unexpected hr %#lx, expected %#lx.\n", hr, exp_hr);

hr = IXmlWriter_WriteWhitespace(writer, L" ");
     ok(hr == exp_hr, "Unexpected hr %#lx, expected %#lx.\n", hr, exp_hr);
@@ -372,6 +375,8 @@ static void test_invalid_output_encoding(IXmlWriter *writer, IUnknown *output)
 {
     IXmlReader *reader;
     HRESULT hr;
+    WCHAR low = 0xdcef;
+    WCHAR high = 0xdaff;

hr = CreateXmlReader(&IID_IXmlReader, (void **)&reader, NULL);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
@@ -448,7 +453,8 @@ static void test_invalid_output_encoding(IXmlWriter *writer, IUnknown *output)
     hr = IXmlWriter_WriteString(writer, L"a");
     ok(hr == MX_E_ENCODING, "Unexpected hr %#lx.\n", hr);

-    /* TODO: WriteSurrogateCharEntity */
+    hr = IXmlWriter_WriteSurrogateCharEntity(writer, low, high);
+    ok(hr == MX_E_ENCODING, "Unexpected hr %#lx.\n", hr);

hr = IXmlWriter_WriteWhitespace(writer, L" ");
     ok(hr == MX_E_ENCODING, "Unexpected hr %#lx.\n", hr);
@@ -1940,6 +1946,50 @@ static void test_WriteRawChars(void)
     IStream_Release(stream);
 }

+static void test_WriteSurrogateCharEntity(void)
+{
+    IXmlWriter *writer;
+    IStream *stream;
+    HRESULT hr;
+    WCHAR low = 0xdcef;
+    WCHAR high = 0xdaff;
+
+    hr = CreateXmlWriter(&IID_IXmlWriter, (void**)&writer, NULL);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    stream = writer_set_output(writer);
+
+    writer_set_property(writer, XmlWriterProperty_OmitXmlDeclaration);
+
+    hr = IXmlWriter_WriteStartDocument(writer, XmlStandalone_Omit);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    hr = IXmlWriter_WriteStartElement(writer, NULL, L"root", NULL);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    hr = IXmlWriter_WriteSurrogateCharEntity(writer, high, low);
+    ok(hr == WC_E_XMLCHARACTER, "Unexpected hr %#lx.\n", hr);
+
+    hr = IXmlWriter_Flush(writer);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    CHECK_OUTPUT(stream, "<root");
+
+    hr = IXmlWriter_WriteSurrogateCharEntity(writer, low, high);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    hr = IXmlWriter_WriteFullEndElement(writer);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    hr = IXmlWriter_Flush(writer);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    CHECK_OUTPUT(stream, "<root>&#xCFCEF;</root>");
+
+    IXmlWriter_Release(writer);
+    IStream_Release(stream);
+}
+
 static void test_WriteString(void)
 {
     IXmlWriter *writer;
@@ -2163,7 +2213,6 @@ static void test_WriteChars(void)
     hr = IXmlWriter_WriteStartElement(writer, NULL, L"chars", NULL);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);

-    /* Writes the whole string but returns an error, strange but true */
     hr = IXmlWriter_WriteChars(writer, L"<chars>", 20);
     ok(hr == WC_E_XMLCHARACTER, "Unexpected hr %#lx.\n", hr);

@@ -2745,6 +2794,7 @@ START_TEST(writer)
     test_WriteCharEntity();
     test_WriteChars();
     test_WriteRawChars();
+    test_WriteSurrogateCharEntity();
     test_WriteString();
     test_WriteDocType();
     test_WriteWhitespace();
diff --git a/dlls/xmllite/writer.c b/dlls/xmllite/writer.c
index 35a388ea276..a184d2c71e2 100644
--- a/dlls/xmllite/writer.c
+++ b/dlls/xmllite/writer.c
@@ -1932,10 +1932,37 @@ static HRESULT WINAPI xmlwriter_WriteChars(IXmlWriter *iface, const WCHAR *pwch,
 static HRESULT WINAPI xmlwriter_WriteSurrogateCharEntity(IXmlWriter *iface, WCHAR wchLow, WCHAR wchHigh)
 {
     xmlwriter *This = impl_from_IXmlWriter(iface);
+    int codepoint;
+    WCHAR bufW[16];

-    FIXME("%p %d %d\n", This, wchLow, wchHigh);
+    TRACE("%p %d %d\n", This, wchLow, wchHigh);

-    return E_NOTIMPL;
+    if (!(wchLow >= 0xdc00 && wchLow <= 0xdfff))
+        return WC_E_XMLCHARACTER;
+
+    if (!(wchHigh <= 0xdbff && wchHigh >= 0xd800))
+        return WC_E_XMLCHARACTER;
+
+    switch(This->state)
+    {
+    case XmlWriterState_Initial:
+        return E_UNEXPECTED;
+    case XmlWriterState_InvalidEncoding:
+	return MX_E_ENCODING;
+    case XmlWriterState_ElemStarted:
+	writer_close_starttag(This);
+	break;
+    case XmlWriterState_DocClosed:
+	return WR_E_INVALIDACTION;
+    default:
+	;
+    }
+
+    codepoint = ((wchHigh - 0xd800) * 0x400) + (wchLow - 0xdc00) + 0x10000;
+    swprintf(bufW, ARRAY_SIZE(bufW), L"&#x%X;", codepoint);
+    write_output_buffer(This->output, bufW, -1);
+
+    return S_OK;
 }

static HRESULT WINAPI xmlwriter_WriteWhitespace(IXmlWriter *iface, LPCWSTR text)