Since I have made several changes to SWIG over the years to accomodate

[wxWidgets.git] / src / xrc / xml.cpp

diff --git a/src/xrc/xml.cpp b/src/xrc/xml.cpp
index cf48cf0038cb031471130a074a1d24f61c2ff6a0..32ee02a04b11f08f660468273f63caef805c8310 100644 (file)
--- a/src/xrc/xml.cpp
+++ b/src/xrc/xml.cpp
@@ -26,11 +26,15 @@
 #include "wx/zstream.h"
 #include "wx/log.h"
 #include "wx/intl.h"
 #include "wx/zstream.h"
 #include "wx/log.h"
 #include "wx/intl.h"

+#include "wx/strconv.h"

 
 #include "wx/xrc/xml.h"
 
 #include "wx/xrc/xml.h"

-#include "wx/xrc/xmlio.h"

 
 

+#include "xmlparse.h" // from Expat

 
 

+//-----------------------------------------------------------------------------
+//  wxXmlNode
+//-----------------------------------------------------------------------------

 
 wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type,
                      const wxString& name, const wxString& content,
 
 wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type,
                      const wxString& name, const wxString& content,


@@ -51,8 +55,6 @@ wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type,
     }
 }
 
     }
 }
 

-
-

 wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name,
                      const wxString& content)
     : m_type(type), m_name(name), m_content(content),
 wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name,
                      const wxString& content)
     : m_type(type), m_name(name), m_content(content),


@@ -60,8 +62,6 @@ wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name,
       m_children(NULL), m_next(NULL)
 {}
 
       m_children(NULL), m_next(NULL)
 {}
 

-
-

 wxXmlNode::wxXmlNode(const wxXmlNode& node)
 {
     m_next = NULL;
 wxXmlNode::wxXmlNode(const wxXmlNode& node)
 {
     m_next = NULL;


@@ -69,8 +69,6 @@ wxXmlNode::wxXmlNode(const wxXmlNode& node)
     DoCopy(node);
 }
 
     DoCopy(node);
 }
 

-
-

 wxXmlNode::~wxXmlNode()
 {
     wxXmlNode *c, *c2;
 wxXmlNode::~wxXmlNode()
 {
     wxXmlNode *c, *c2;


@@ -88,8 +86,6 @@ wxXmlNode::~wxXmlNode()
     }
 }
 
     }
 }
 

-
-

 wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node)
 {
     wxDELETE(m_properties);
 wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node)
 {
     wxDELETE(m_properties);


@@ -98,8 +94,6 @@ wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node)
     return *this;
 }
 
     return *this;
 }
 

-
-

 void wxXmlNode::DoCopy(const wxXmlNode& node)
 {
     m_type = node.m_type;
 void wxXmlNode::DoCopy(const wxXmlNode& node)
 {
     m_type = node.m_type;


@@ -123,7 +117,6 @@ void wxXmlNode::DoCopy(const wxXmlNode& node)
     }
 }
 
     }
 }
 

-

 bool wxXmlNode::HasProp(const wxString& propName) const
 {
     wxXmlProperty *prop = GetProperties();
 bool wxXmlNode::HasProp(const wxString& propName) const
 {
     wxXmlProperty *prop = GetProperties();


@@ -137,8 +130,6 @@ bool wxXmlNode::HasProp(const wxString& propName) const
     return FALSE;
 }
 
     return FALSE;
 }
 

-
-

 bool wxXmlNode::GetPropVal(const wxString& propName, wxString *value) const
 {
     wxXmlProperty *prop = GetProperties();
 bool wxXmlNode::GetPropVal(const wxString& propName, wxString *value) const
 {
     wxXmlProperty *prop = GetProperties();


@@ -156,8 +147,6 @@ bool wxXmlNode::GetPropVal(const wxString& propName, wxString *value) const
     return FALSE;
 }
 
     return FALSE;
 }
 

-
-

 wxString wxXmlNode::GetPropVal(const wxString& propName, const wxString& defaultVal) const
 {
     wxString tmp;
 wxString wxXmlNode::GetPropVal(const wxString& propName, const wxString& defaultVal) const
 {
     wxString tmp;


@@ -167,8 +156,6 @@ wxString wxXmlNode::GetPropVal(const wxString& propName, const wxString& default
         return defaultVal;
 }
 
         return defaultVal;
 }
 

-
-

 void wxXmlNode::AddChild(wxXmlNode *child)
 {
     if (m_children == NULL)
 void wxXmlNode::AddChild(wxXmlNode *child)
 {
     if (m_children == NULL)


@@ -183,8 +170,6 @@ void wxXmlNode::AddChild(wxXmlNode *child)
     child->m_parent = this;
 }
 
     child->m_parent = this;
 }
 

-
-

 void wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node)
 {
     wxASSERT_MSG(before_node->GetParent() == this, wxT("wxXmlNode::InsertChild - the node has incorrect parent"));
 void wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node)
 {
     wxASSERT_MSG(before_node->GetParent() == this, wxT("wxXmlNode::InsertChild - the node has incorrect parent"));


@@ -202,8 +187,6 @@ void wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node)
     child->m_next = before_node;
 }
 
     child->m_next = before_node;
 }
 

-
-

 bool wxXmlNode::RemoveChild(wxXmlNode *child)
 {
     if (m_children == NULL)
 bool wxXmlNode::RemoveChild(wxXmlNode *child)
 {
     if (m_children == NULL)


@@ -233,8 +216,6 @@ bool wxXmlNode::RemoveChild(wxXmlNode *child)
     }
 }
 
     }
 }
 

-
-

 void wxXmlNode::AddProperty(const wxString& name, const wxString& value)
 {
     AddProperty(new wxXmlProperty(name, value, NULL));
 void wxXmlNode::AddProperty(const wxString& name, const wxString& value)
 {
     AddProperty(new wxXmlProperty(name, value, NULL));


@@ -252,16 +233,16 @@ void wxXmlNode::AddProperty(wxXmlProperty *prop)
     }
 }
 
     }
 }
 

-
-

 bool wxXmlNode::DeleteProperty(const wxString& name)
 {
 bool wxXmlNode::DeleteProperty(const wxString& name)
 {

+    wxXmlProperty *prop;
+

     if (m_properties == NULL)
         return FALSE;
 
     else if (m_properties->GetName() == name)
     {
     if (m_properties == NULL)
         return FALSE;
 
     else if (m_properties->GetName() == name)
     {

-        wxXmlProperty *prop = m_properties;
+        prop = m_properties;

         m_properties = prop->GetNext();
         prop->SetNext(NULL);
         delete prop;
         m_properties = prop->GetNext();
         prop->SetNext(NULL);
         delete prop;


@@ -275,7 +256,7 @@ bool wxXmlNode::DeleteProperty(const wxString& name)
         {
             if (p->GetNext()->GetName() == name)
             {
         {
             if (p->GetNext()->GetName() == name)
             {

-                wxXmlProperty *prop = p->GetNext();
+                prop = p->GetNext();

                 p->SetNext(prop->GetNext());
                 prop->SetNext(NULL);
                 delete prop;
                 p->SetNext(prop->GetNext());
                 prop->SetNext(NULL);
                 delete prop;


@@ -289,44 +270,33 @@ bool wxXmlNode::DeleteProperty(const wxString& name)
 
 
 
 
 
 

+//-----------------------------------------------------------------------------
+//  wxXmlDocument
+//-----------------------------------------------------------------------------

 
 

-
-
-
-
-wxList *wxXmlDocument::sm_handlers = NULL;
-
-
-
-wxXmlDocument::wxXmlDocument(const wxString& filename, wxXmlIOType io_type)
+wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding)

                           : wxObject(), m_root(NULL)
 {
                           : wxObject(), m_root(NULL)
 {

-    if (!Load(filename, io_type))
+    if ( !Load(filename, encoding) )

     {
         wxDELETE(m_root);
     }
 }
 
     {
         wxDELETE(m_root);
     }
 }
 

-
-
-wxXmlDocument::wxXmlDocument(wxInputStream& stream, wxXmlIOType io_type)
+wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding)

                           : wxObject(), m_root(NULL)
 {
                           : wxObject(), m_root(NULL)
 {

-    if (!Load(stream, io_type))
+    if ( !Load(stream, encoding) )

     {
         wxDELETE(m_root);
     }
 }
 
     {
         wxDELETE(m_root);
     }
 }
 

-
-

 wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc)
 {
     DoCopy(doc);
 }
 
 wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc)
 {
     DoCopy(doc);
 }
 

-
-

 wxXmlDocument& wxXmlDocument::operator=(const wxXmlDocument& doc)
 {
     wxDELETE(m_root);
 wxXmlDocument& wxXmlDocument::operator=(const wxXmlDocument& doc)
 {
     wxDELETE(m_root);


@@ -334,124 +304,408 @@ wxXmlDocument& wxXmlDocument::operator=(const wxXmlDocument& doc)
     return *this;
 }
 
     return *this;
 }
 

-
-

 void wxXmlDocument::DoCopy(const wxXmlDocument& doc)
 {
     m_version = doc.m_version;
 void wxXmlDocument::DoCopy(const wxXmlDocument& doc)
 {
     m_version = doc.m_version;

+#if !wxUSE_UNICODE

     m_encoding = doc.m_encoding;
     m_encoding = doc.m_encoding;

+#endif
+    m_fileEncoding = doc.m_fileEncoding;

     m_root = new wxXmlNode(*doc.m_root);
 }
 
     m_root = new wxXmlNode(*doc.m_root);
 }
 

-
-
-bool wxXmlDocument::Load(const wxString& filename, wxXmlIOType io_type)
+bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding)

 {
     wxFileInputStream stream(filename);
 {
     wxFileInputStream stream(filename);

-    return Load(stream, io_type);
+    return Load(stream, encoding);
+}
+
+bool wxXmlDocument::Save(const wxString& filename) const
+{
+    wxFileOutputStream stream(filename);
+    return Save(stream);

 }
 
 
 
 }
 
 
 

-bool wxXmlDocument::Load(wxInputStream& stream, wxXmlIOType io_type)
+//-----------------------------------------------------------------------------
+//  wxXmlDocument loading routines
+//-----------------------------------------------------------------------------
+
+/*
+    FIXME:
+       - process all elements, including CDATA
+ */
+
+// converts Expat-produced string in UTF-8 into wxString.
+inline static wxString CharToString(wxMBConv *conv,
+                                    const char *s, size_t len = wxSTRING_MAXLEN)

 {
 {

-    wxNode *n = sm_handlers->GetFirst();
-    while (n)
+#if wxUSE_UNICODE
+    (void)conv;
+    return wxString(s, wxConvUTF8, len);
+#else
+    if ( conv )

     {
     {

-        wxXmlIOHandler *h = (wxXmlIOHandler*) n->GetData();
-
-        if ((io_type == wxXML_IO_AUTO || io_type == h->GetType()) &&
-            h->CanLoad(stream))
-        {
-            return h->Load(stream, *this);
-        }
-        n = n->GetNext();
+        size_t nLen = (len != wxSTRING_MAXLEN) ? len :
+                          nLen = wxConvUTF8.MB2WC((wchar_t*) NULL, s, 0);
+
+        wchar_t *buf = new wchar_t[nLen+1];
+        wxConvUTF8.MB2WC(buf, s, nLen);
+        buf[nLen] = 0;
+        delete[] buf;
+        return wxString(buf, *conv, len);

     }
     }

-    wxLogError(_("Cannot find XML I/O handler capable of loading this format."));
-    return FALSE;
+    else
+        return wxString(s, len);
+#endif

 }
 
 }
 

+struct wxXmlParsingContext
+{
+    wxMBConv  *conv;
+    wxXmlNode *root;
+    wxXmlNode *node;
+    wxXmlNode *lastAsText;
+    wxString   encoding;
+    wxString   version;
+};

 
 

-
-bool wxXmlDocument::Save(const wxString& filename, wxXmlIOType io_type) const
+static void StartElementHnd(void *userData, const char *name, const char **atts)

 {
 {

-    wxFileOutputStream stream(filename);
-    return Save(stream, io_type);
+    wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;
+    wxXmlNode *node = new wxXmlNode(wxXML_ELEMENT_NODE, CharToString(ctx->conv, name));
+    const char **a = atts;
+    while (*a)
+    {
+        node->AddProperty(CharToString(ctx->conv, a[0]), CharToString(ctx->conv, a[1]));
+        a += 2;
+    }
+    if (ctx->root == NULL)
+        ctx->root = node;
+    else
+        ctx->node->AddChild(node);
+    ctx->node = node;
+    ctx->lastAsText = NULL;

 }
 
 }
 

+static void EndElementHnd(void *userData, const char* WXUNUSED(name))
+{
+    wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;

 
 

+    ctx->node = ctx->node->GetParent();
+    ctx->lastAsText = NULL;
+}

 
 

-bool wxXmlDocument::Save(wxOutputStream& stream, wxXmlIOType io_type) const
+static void TextHnd(void *userData, const char *s, int len)

 {
 {

-    wxNode *n = sm_handlers->GetFirst();
-    while (n)
+    wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;
+    char *buf = new char[len + 1];
+
+    buf[len] = '\0';
+    memcpy(buf, s, (size_t)len);
+
+    if (ctx->lastAsText)
+    {
+        ctx->lastAsText->SetContent(ctx->lastAsText->GetContent() +
+                                    CharToString(ctx->conv, buf));
+    }
+    else

     {
     {

-        wxXmlIOHandler *h = (wxXmlIOHandler*) n->GetData();
-        if (io_type == h->GetType() && h->CanSave())
+        bool whiteOnly = TRUE;
+        for (char *c = buf; *c != '\0'; c++)
+            if (*c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
+            {
+                whiteOnly = FALSE;
+                break;
+            }
+        if (!whiteOnly)

         {
         {

-            return h->Save(stream, *this);
+            ctx->lastAsText = new wxXmlNode(wxXML_TEXT_NODE, wxT("text"),
+                                            CharToString(ctx->conv, buf));
+            ctx->node->AddChild(ctx->lastAsText);

         }
         }

-        n = n->GetNext();

     }
     }

-    wxLogError(_("Cannot find XML I/O handler capable of saving in this format."));
-    return FALSE;
-}
-
-

 
 

+    delete[] buf;
+}

 
 

+static void CommentHnd(void *userData, const char *data)
+{
+    wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;

 
 

+    if (ctx->node)
+    {
+        // VS: ctx->node == NULL happens if there is a comment before
+        //     the root element (e.g. wxDesigner's output). We ignore such
+        //     comments, no big deal...
+        ctx->node->AddChild(new wxXmlNode(wxXML_COMMENT_NODE,
+                            wxT("comment"), CharToString(ctx->conv, data)));
+    }
+    ctx->lastAsText = NULL;
+}

 
 

-void wxXmlDocument::AddHandler(wxXmlIOHandler *handler)
+static void DefaultHnd(void *userData, const char *s, int len)

 {
 {

-    if (sm_handlers == NULL)
+    // XML header:
+    if (len > 6 && memcmp(s, "<?xml ", 6) == 0)

     {
     {

-        sm_handlers = new wxList;
-        sm_handlers->DeleteContents(TRUE);
+        wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;
+
+        wxString buf = CharToString(ctx->conv, s, (size_t)len);
+        int pos;
+        pos = buf.Find(wxT("encoding="));
+        if (pos != wxNOT_FOUND)
+            ctx->encoding = buf.Mid(pos + 10).BeforeFirst(buf[(size_t)pos+9]);
+        pos = buf.Find(wxT("version="));
+        if (pos != wxNOT_FOUND)
+            ctx->version = buf.Mid(pos + 9).BeforeFirst(buf[(size_t)pos+8]);

     }
     }

-    sm_handlers->Append(handler);

 }
 
 }
 

+static int UnknownEncodingHnd(void * WXUNUSED(encodingHandlerData),
+                               const XML_Char *name, XML_Encoding *info)
+{
+    // We must build conversion table for expat. The easiest way to do so
+    // is to let wxCSConv convert as string containing all characters to
+    // wide character representation:
+    wxCSConv conv(wxString(name, wxConvLibc));
+    char mbBuf[255];
+    wchar_t wcBuf[255];
+    size_t i;
+
+    for (i = 0; i < 255; i++)
+        mbBuf[i] = (char) (i+1);
+    mbBuf[255] = 0;
+    conv.MB2WC(wcBuf, mbBuf, 255);
+    wcBuf[255] = 0;
+
+    info->map[0] = 0;
+    for (i = 0; i < 255; i++)
+        info->map[i+1] = (int)wcBuf[i];
+
+    info->data = NULL;
+    info->convert = NULL;
+    info->release = NULL;
+
+    return 1;
+}

 
 

-void wxXmlDocument::CleanUpHandlers()
+bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)

 {
 {

-    wxDELETE(sm_handlers);
+#if wxUSE_UNICODE
+    (void)encoding;
+#else
+    m_encoding = encoding;
+#endif
+
+    const size_t BUFSIZE = 1024;
+    char buf[BUFSIZE];
+    wxXmlParsingContext ctx;
+    bool done;
+    XML_Parser parser = XML_ParserCreate(NULL);
+
+    ctx.root = ctx.node = NULL;
+    ctx.encoding = wxT("UTF-8"); // default in absence of encoding=""
+    ctx.conv = NULL;
+#if !wxUSE_UNICODE
+    if ( encoding != wxT("UTF-8") && encoding != wxT("utf-8") )
+        ctx.conv = new wxCSConv(encoding);
+#endif
+
+    XML_SetUserData(parser, (void*)&ctx);
+    XML_SetElementHandler(parser, StartElementHnd, EndElementHnd);
+    XML_SetCharacterDataHandler(parser, TextHnd);
+    XML_SetCommentHandler(parser, CommentHnd);
+    XML_SetDefaultHandler(parser, DefaultHnd);
+    XML_SetUnknownEncodingHandler(parser, UnknownEncodingHnd, NULL);
+
+    do
+    {
+        size_t len = stream.Read(buf, BUFSIZE).LastRead();
+        done = (len < BUFSIZE);
+        if (!XML_Parse(parser, buf, len, done))
+        {
+            wxLogError(_("XML parsing error: '%s' at line %d"),
+                       XML_ErrorString(XML_GetErrorCode(parser)),
+                       XML_GetCurrentLineNumber(parser));
+          return FALSE;
+        }
+    } while (!done);
+
+    SetVersion(ctx.version);
+    SetFileEncoding(ctx.encoding);
+    SetRoot(ctx.root);
+
+    XML_ParserFree(parser);
+#if !wxUSE_UNICODE
+    if ( ctx.conv )
+        delete ctx.conv;
+#endif
+
+    return TRUE;
+

 }
 
 
 }
 
 

-void wxXmlDocument::InitStandardHandlers()
+
+//-----------------------------------------------------------------------------
+//  wxXmlDocument saving routines
+//-----------------------------------------------------------------------------
+
+// write string to output:
+inline static void OutputString(wxOutputStream& stream, const wxString& str,
+                                wxMBConv *convMem, wxMBConv *convFile)

 {
 {

-    AddHandler(new wxXmlIOHandlerBin);
-#if wxUSE_ZLIB
-    AddHandler(new wxXmlIOHandlerBinZ);
+    if (str.IsEmpty()) return;
+#if wxUSE_UNICODE
+    const wxWX2MBbuf buf(str.mb_str(convFile ? *convFile : wxConvUTF8));
+    stream.Write((const char*)buf, strlen((const char*)buf));
+#else
+    if ( convFile == NULL )
+        stream.Write(str.mb_str(), str.Len());
+    else
+    {
+        wxString str2(str.wc_str(*convMem), *convFile);
+        stream.Write(str2.mb_str(), str2.Len());
+    }

 #endif
 #endif

-    AddHandler(new wxXmlIOHandlerExpat);
-    AddHandler(new wxXmlIOHandlerWriter);

 }
 
 }
 

+// Same as above, but create entities first.
+// Translates '<' to "&lt;", '>' to "&gt;" and '&' to "&amp;"
+static void OutputStringEnt(wxOutputStream& stream, const wxString& str,
+                            wxMBConv *convMem, wxMBConv *convFile)
+{
+    wxString buf;
+    size_t i, last, len;
+    wxChar c;

 
 

-#include "wx/module.h"
+    len = str.Len();
+    last = 0;
+    for (i = 0; i < len; i++)
+    {
+        c = str.GetChar(i);
+        if (c == wxT('<') || c == wxT('>') ||
+            (c == wxT('&') && str.Mid(i+1, 4) != wxT("amp;")))
+        {
+            OutputString(stream, str.Mid(last, i - last), convMem, convFile);
+            switch (c)
+            {
+                case wxT('<'):
+                    OutputString(stream, wxT("&lt;"), NULL, NULL);
+                    break;
+                case wxT('>'):
+                    OutputString(stream, wxT("&gt;"), NULL, NULL);
+                    break;
+                case wxT('&'):
+                    OutputString(stream, wxT("&amp;"), NULL, NULL);
+                    break;
+                default: break;
+            }
+            last = i + 1;
+        }
+    }
+    OutputString(stream, str.Mid(last, i - last), convMem, convFile);
+}

 
 

-class wxXmlModule: public wxModule
+inline static void OutputIndentation(wxOutputStream& stream, int indent)

 {
 {

-    DECLARE_DYNAMIC_CLASS(wxXmlModule)
-    public:
-        wxXmlModule() {}
-        bool OnInit() { wxXmlDocument::InitStandardHandlers(); return TRUE; };
-        void OnExit() { wxXmlDocument::CleanUpHandlers(); };
-};
+    wxString str = wxT("\n");
+    for (int i = 0; i < indent; i++)
+        str << wxT(' ') << wxT(' ');
+    OutputString(stream, str, NULL, NULL);
+}

 
 

-IMPLEMENT_DYNAMIC_CLASS(wxXmlModule, wxModule)
+static void OutputNode(wxOutputStream& stream, wxXmlNode *node, int indent,
+                       wxMBConv *convMem, wxMBConv *convFile)
+{
+    wxXmlNode *n, *prev;
+    wxXmlProperty *prop;

 
 

+    switch (node->GetType())
+    {
+        case wxXML_TEXT_NODE:
+            OutputStringEnt(stream, node->GetContent(), convMem, convFile);
+            break;

 
 

+        case wxXML_ELEMENT_NODE:
+            OutputString(stream, wxT("<"), NULL, NULL);
+            OutputString(stream, node->GetName(), NULL, NULL);

 
 

+            prop = node->GetProperties();
+            while (prop)
+            {
+                OutputString(stream, wxT(" ") + prop->GetName() +
+                             wxT("=\"") + prop->GetValue() + wxT("\""),
+                             NULL, NULL);
+                // FIXME - what if prop contains '"'?
+                prop = prop->GetNext();
+            }

 
 

-// When wxXml is loaded dynamically after the application is already running
-// then the built-in module system won't pick this one up.  Add it manually.
-void wxXmlInitXmlModule()
-{
-    wxModule* module = new wxXmlModule;
-    module->Init();
-    wxModule::RegisterModule(module);
+            if (node->GetChildren())
+            {
+                OutputString(stream, wxT(">"), NULL, NULL);
+                prev = NULL;
+                n = node->GetChildren();
+                while (n)
+                {
+                    if (n && n->GetType() != wxXML_TEXT_NODE)
+                        OutputIndentation(stream, indent + 1);
+                    OutputNode(stream, n, indent + 1, convMem, convFile);
+                    prev = n;
+                    n = n->GetNext();
+                }
+                if (prev && prev->GetType() != wxXML_TEXT_NODE)
+                    OutputIndentation(stream, indent);
+                OutputString(stream, wxT("</"), NULL, NULL);
+                OutputString(stream, node->GetName(), NULL, NULL);
+                OutputString(stream, wxT(">"), NULL, NULL);
+            }
+            else
+                OutputString(stream, wxT("/>"), NULL, NULL);
+            break;
+
+        case wxXML_COMMENT_NODE:
+            OutputString(stream, wxT("<!--"), NULL, NULL);
+            OutputString(stream, node->GetContent(), convMem, convFile);
+            OutputString(stream, wxT("-->"), NULL, NULL);
+            break;
+
+        default:
+            wxFAIL_MSG(wxT("unsupported node type"));
+    }

 }
 
 }
 

+bool wxXmlDocument::Save(wxOutputStream& stream) const
+{
+    if ( !IsOk() )
+        return FALSE;
+
+    wxString s;
+
+    wxMBConv *convMem = NULL, *convFile = NULL;
+#if wxUSE_UNICODE
+    convFile = new wxCSConv(GetFileEncoding());
+#else
+    if ( GetFileEncoding() != GetEncoding() )
+    {
+        convFile = new wxCSConv(GetFileEncoding());
+        convMem = new wxCSConv(GetEncoding());
+    }
+#endif
+
+    s.Printf(wxT("<?xml version=\"%s\" encoding=\"%s\"?>\n"),
+             GetVersion().c_str(), GetFileEncoding().c_str());
+    OutputString(stream, s, NULL, NULL);
+
+    OutputNode(stream, GetRoot(), 0, convMem, convFile);
+    OutputString(stream, wxT("\n"), NULL, NULL);
+
+    if ( convFile )
+        delete convFile;
+    if ( convMem )
+        delete convMem;
+
+    return TRUE;
+}