Better fix

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

diff --git a/src/xml/xml.cpp b/src/xml/xml.cpp
index 2f95a431186dc970a985d0d2efc9e29a81ed3033..a68f828b401ad72eea80cbc17fd3b1139fbfd132 100644 (file)
--- a/src/xml/xml.cpp
+++ b/src/xml/xml.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        xml.cpp
+// Name:        src/xml/xml.cpp

 // Purpose:     wxXmlDocument - XML parser & data holder class
 // Author:      Vaclav Slavik
 // Created:     2000/03/05
 // Purpose:     wxXmlDocument - XML parser & data holder class
 // Author:      Vaclav Slavik
 // Created:     2000/03/05


@@ -8,10 +8,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "xml.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -19,33 +15,45 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_XML
+

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

-#if wxUSE_XML
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+#endif

 
 #include "wx/wfstream.h"
 #include "wx/datstrm.h"
 #include "wx/zstream.h"
 
 #include "wx/wfstream.h"
 #include "wx/datstrm.h"
 #include "wx/zstream.h"

-#include "wx/log.h"
-#include "wx/intl.h"

 #include "wx/strconv.h"
 
 #include "expat.h" // from Expat
 
 // DLL options compatibility check:
 #include "wx/strconv.h"
 
 #include "expat.h" // from Expat
 
 // DLL options compatibility check:

-#include "wx/app.h"

 WX_CHECK_BUILD_OPTIONS("wxXML")
 
 WX_CHECK_BUILD_OPTIONS("wxXML")
 

+
+IMPLEMENT_CLASS(wxXmlDocument, wxObject)
+
+
+// a private utility used by wxXML
+static bool wxIsWhiteOnly(const wxString& buf);
+
+

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

-                     wxXmlProperty *props, wxXmlNode *next)
+                     wxXmlAttribute *attrs, wxXmlNode *next, int lineNo)

     : m_type(type), m_name(name), m_content(content),
     : m_type(type), m_name(name), m_content(content),

-      m_properties(props), m_parent(parent),
-      m_children(NULL), m_next(next)
+      m_attrs(attrs), m_parent(parent),
+      m_children(NULL), m_next(next),
+      m_lineNo(lineNo)

 {
     if (m_parent)
     {
 {
     if (m_parent)
     {


@@ -60,10 +68,12 @@ wxXmlNode::wxXmlNode(wxXmlNode *parent,wxXmlNodeType type,
 }
 
 wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name,
 }
 
 wxXmlNode::wxXmlNode(wxXmlNodeType type, const wxString& name,

-                     const wxString& content)
+                     const wxString& content,
+                     int lineNo)

     : m_type(type), m_name(name), m_content(content),
     : m_type(type), m_name(name), m_content(content),

-      m_properties(NULL), m_parent(NULL),
-      m_children(NULL), m_next(NULL)
+      m_attrs(NULL), m_parent(NULL),
+      m_children(NULL), m_next(NULL),
+      m_lineNo(lineNo)

 {}
 
 wxXmlNode::wxXmlNode(const wxXmlNode& node)
 {}
 
 wxXmlNode::wxXmlNode(const wxXmlNode& node)


@@ -82,8 +92,8 @@ wxXmlNode::~wxXmlNode()
         delete c;
     }
 
         delete c;
     }
 

-    wxXmlProperty *p, *p2;
-    for (p = m_properties; p; p = p2)
+    wxXmlAttribute *p, *p2;
+    for (p = m_attrs; p; p = p2)

     {
         p2 = p->GetNext();
         delete p;
     {
         p2 = p->GetNext();
         delete p;


@@ -92,7 +102,7 @@ wxXmlNode::~wxXmlNode()
 
 wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node)
 {
 
 wxXmlNode& wxXmlNode::operator=(const wxXmlNode& node)
 {

-    wxDELETE(m_properties);
+    wxDELETE(m_attrs);

     wxDELETE(m_children);
     DoCopy(node);
     return *this;
     wxDELETE(m_children);
     DoCopy(node);
     return *this;


@@ -103,6 +113,7 @@ void wxXmlNode::DoCopy(const wxXmlNode& node)
     m_type = node.m_type;
     m_name = node.m_name;
     m_content = node.m_content;
     m_type = node.m_type;
     m_name = node.m_name;
     m_content = node.m_content;

+    m_lineNo = node.m_lineNo;

     m_children = NULL;
 
     wxXmlNode *n = node.m_children;
     m_children = NULL;
 
     wxXmlNode *n = node.m_children;


@@ -112,52 +123,54 @@ void wxXmlNode::DoCopy(const wxXmlNode& node)
         n = n->GetNext();
     }
 
         n = n->GetNext();
     }
 

-    m_properties = NULL;
-    wxXmlProperty *p = node.m_properties;
+    m_attrs = NULL;
+    wxXmlAttribute *p = node.m_attrs;

     while (p)
     {
     while (p)
     {

-       AddProperty(p->GetName(), p->GetValue());
+       AddAttribute(p->GetName(), p->GetValue());

        p = p->GetNext();
     }
 }
 
        p = p->GetNext();
     }
 }
 

-bool wxXmlNode::HasProp(const wxString& propName) const
+bool wxXmlNode::HasAttribute(const wxString& attrName) const

 {
 {

-    wxXmlProperty *prop = GetProperties();
+    wxXmlAttribute *attr = GetAttributes();

 
 

-    while (prop)
+    while (attr)

     {
     {

-        if (prop->GetName() == propName) return TRUE;
-        prop = prop->GetNext();
+        if (attr->GetName() == attrName) return true;
+        attr = attr->GetNext();

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 }
 

-bool wxXmlNode::GetPropVal(const wxString& propName, wxString *value) const
+bool wxXmlNode::GetAttribute(const wxString& attrName, wxString *value) const

 {
 {

-    wxXmlProperty *prop = GetProperties();
+    wxCHECK_MSG( value, false, "value argument must not be NULL" );
+
+    wxXmlAttribute *attr = GetAttributes();

 
 

-    while (prop)
+    while (attr)

     {
     {

-        if (prop->GetName() == propName)
+        if (attr->GetName() == attrName)

         {
         {

-            *value = prop->GetValue();
-            return TRUE;
+            *value = attr->GetValue();
+            return true;

         }
         }

-        prop = prop->GetNext();
+        attr = attr->GetNext();

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 }
 

-wxString wxXmlNode::GetPropVal(const wxString& propName, const wxString& defaultVal) const
+wxString wxXmlNode::GetAttribute(const wxString& attrName, const wxString& defaultVal) const

 {
     wxString tmp;
 {
     wxString tmp;

-    if (GetPropVal(propName, &tmp))
+    if (GetAttribute(attrName, &tmp))

         return tmp;
         return tmp;

-    else
-        return defaultVal;
+
+    return defaultVal;

 }
 
 void wxXmlNode::AddChild(wxXmlNode *child)
 }
 
 void wxXmlNode::AddChild(wxXmlNode *child)


@@ -174,33 +187,52 @@ void wxXmlNode::AddChild(wxXmlNode *child)
     child->m_parent = this;
 }
 
     child->m_parent = this;
 }
 

-void wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node)
+bool wxXmlNode::InsertChild(wxXmlNode *child, wxXmlNode *before_node)

 {
 {

-    wxASSERT_MSG(before_node->GetParent() == this, wxT("wxXmlNode::InsertChild - the node has incorrect parent"));
+    wxCHECK_MSG(before_node == NULL || before_node->GetParent() == this, false,
+                 wxT("wxXmlNode::InsertChild - the node has incorrect parent"));
+    wxCHECK_MSG(child, false, wxT("Cannot insert a NULL pointer!"));

 
     if (m_children == before_node)
        m_children = child;
 
     if (m_children == before_node)
        m_children = child;

+    else if (m_children == NULL)
+    {
+        if (before_node != NULL)
+            return false;       // we have no children so we don't need to search
+        m_children = child;
+    }
+    else if (before_node == NULL)
+    {
+        // prepend child
+        child->m_parent = this;
+        child->m_next = m_children;
+        m_children = child;
+        return true;
+    }

     else
     {
         wxXmlNode *ch = m_children;
     else
     {
         wxXmlNode *ch = m_children;

-        while (ch->m_next != before_node) ch = ch->m_next;
+        while (ch && ch->m_next != before_node) ch = ch->m_next;
+        if (!ch)
+            return false;       // before_node not found

         ch->m_next = child;
     }
 
     child->m_parent = this;
     child->m_next = before_node;
         ch->m_next = child;
     }
 
     child->m_parent = this;
     child->m_next = before_node;

+    return true;

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

-        return FALSE;
+        return false;

     else if (m_children == child)
     {
         m_children = child->m_next;
         child->m_parent = NULL;
         child->m_next = NULL;
     else if (m_children == child)
     {
         m_children = child->m_next;
         child->m_parent = NULL;
         child->m_next = NULL;

-        return TRUE;
+        return true;

     }
     else
     {
     }
     else
     {


@@ -212,64 +244,115 @@ bool wxXmlNode::RemoveChild(wxXmlNode *child)
                 ch->m_next = child->m_next;
                 child->m_parent = NULL;
                 child->m_next = NULL;
                 ch->m_next = child->m_next;
                 child->m_parent = NULL;
                 child->m_next = NULL;

-                return TRUE;
+                return true;

             }
             ch = ch->m_next;
         }
             }
             ch = ch->m_next;
         }

-        return FALSE;
+        return false;

     }
 }
 
     }
 }
 

+void wxXmlNode::AddAttribute(const wxString& name, const wxString& value)
+{
+    AddProperty(name, value);
+}
+
+void wxXmlNode::AddAttribute(wxXmlAttribute *attr)
+{
+    AddProperty(attr);
+}
+
+bool wxXmlNode::DeleteAttribute(const wxString& name)
+{
+    return DeleteProperty(name);
+}
+

 void wxXmlNode::AddProperty(const wxString& name, const wxString& value)
 {
 void wxXmlNode::AddProperty(const wxString& name, const wxString& value)
 {

-    AddProperty(new wxXmlProperty(name, value, NULL));
+    AddProperty(new wxXmlAttribute(name, value, NULL));

 }
 
 }
 

-void wxXmlNode::AddProperty(wxXmlProperty *prop)
+void wxXmlNode::AddProperty(wxXmlAttribute *attr)

 {
 {

-    if (m_properties == NULL)
-        m_properties = prop;
+    if (m_attrs == NULL)
+        m_attrs = attr;

     else
     {
     else
     {

-        wxXmlProperty *p = m_properties;
+        wxXmlAttribute *p = m_attrs;

         while (p->GetNext()) p = p->GetNext();
         while (p->GetNext()) p = p->GetNext();

-        p->SetNext(prop);
+        p->SetNext(attr);

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

-    wxXmlProperty *prop;
+    wxXmlAttribute *attr;

 
 

-    if (m_properties == NULL)
-        return FALSE;
+    if (m_attrs == NULL)
+        return false;

 
 

-    else if (m_properties->GetName() == name)
+    else if (m_attrs->GetName() == name)

     {
     {

-        prop = m_properties;
-        m_properties = prop->GetNext();
-        prop->SetNext(NULL);
-        delete prop;
-        return TRUE;
+        attr = m_attrs;
+        m_attrs = attr->GetNext();
+        attr->SetNext(NULL);
+        delete attr;
+        return true;

     }
 
     else
     {
     }
 
     else
     {

-        wxXmlProperty *p = m_properties;
+        wxXmlAttribute *p = m_attrs;

         while (p->GetNext())
         {
             if (p->GetNext()->GetName() == name)
             {
         while (p->GetNext())
         {
             if (p->GetNext()->GetName() == name)
             {

-                prop = p->GetNext();
-                p->SetNext(prop->GetNext());
-                prop->SetNext(NULL);
-                delete prop;
-                return TRUE;
+                attr = p->GetNext();
+                p->SetNext(attr->GetNext());
+                attr->SetNext(NULL);
+                delete attr;
+                return true;

             }
             p = p->GetNext();
         }
             }
             p = p->GetNext();
         }

-        return FALSE;
+        return false;
+    }
+}
+
+wxString wxXmlNode::GetNodeContent() const
+{
+    wxXmlNode *n = GetChildren();
+
+    while (n)
+    {
+        if (n->GetType() == wxXML_TEXT_NODE ||
+            n->GetType() == wxXML_CDATA_SECTION_NODE)
+            return n->GetContent();
+        n = n->GetNext();

     }
     }

+    return wxEmptyString;
+}
+
+int wxXmlNode::GetDepth(wxXmlNode *grandparent) const
+{
+    const wxXmlNode *n = this;
+    int ret = -1;
+
+    do
+    {
+        ret++;
+        n = n->GetParent();
+        if (n == grandparent)
+            return ret;
+
+    } while (n);
+
+    return wxNOT_FOUND;
+}
+
+bool wxXmlNode::IsWhitespaceOnly() const
+{
+    return wxIsWhiteOnly(m_content);

 }
 
 
 }
 
 


@@ -287,7 +370,7 @@ wxXmlDocument::wxXmlDocument()
 }
 
 wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding)
 }
 
 wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding)

-                          : wxObject(), m_root(NULL)
+              :wxObject(), m_root(NULL)

 {
     if ( !Load(filename, encoding) )
     {
 {
     if ( !Load(filename, encoding) )
     {


@@ -296,7 +379,7 @@ wxXmlDocument::wxXmlDocument(const wxString& filename, const wxString& encoding)
 }
 
 wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding)
 }
 
 wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding)

-                          : wxObject(), m_root(NULL)
+              :wxObject(), m_root(NULL)

 {
     if ( !Load(stream, encoding) )
     {
 {
     if ( !Load(stream, encoding) )
     {


@@ -305,6 +388,7 @@ wxXmlDocument::wxXmlDocument(wxInputStream& stream, const wxString& encoding)
 }
 
 wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc)
 }
 
 wxXmlDocument::wxXmlDocument(const wxXmlDocument& doc)

+              :wxObject()

 {
     DoCopy(doc);
 }
 {
     DoCopy(doc);
 }


@@ -323,19 +407,27 @@ void wxXmlDocument::DoCopy(const wxXmlDocument& doc)
     m_encoding = doc.m_encoding;
 #endif
     m_fileEncoding = doc.m_fileEncoding;
     m_encoding = doc.m_encoding;
 #endif
     m_fileEncoding = doc.m_fileEncoding;

-    m_root = new wxXmlNode(*doc.m_root);
+
+    if (doc.m_root)
+        m_root = new wxXmlNode(*doc.m_root);
+    else
+        m_root = NULL;

 }
 
 }
 

-bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding)
+bool wxXmlDocument::Load(const wxString& filename, const wxString& encoding, int flags)

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

-    return Load(stream, encoding);
+    if (!stream.Ok())
+        return false;
+    return Load(stream, encoding, flags);

 }
 
 }
 

-bool wxXmlDocument::Save(const wxString& filename) const
+bool wxXmlDocument::Save(const wxString& filename, int indentstep) const

 {
     wxFileOutputStream stream(filename);
 {
     wxFileOutputStream stream(filename);

-    return Save(stream);
+    if (!stream.Ok())
+        return false;
+    return Save(stream, indentstep);

 }
 
 
 }
 
 


@@ -344,54 +436,66 @@ bool wxXmlDocument::Save(const wxString& filename) const
 //  wxXmlDocument loading routines
 //-----------------------------------------------------------------------------
 
 //  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)
+// converts Expat-produced string in UTF-8 into wxString using the specified
+// conv or keep in UTF-8 if conv is NULL
+static wxString CharToString(wxMBConv *conv,
+                             const char *s, size_t len = wxString::npos)

 {
 {

-#if wxUSE_UNICODE
-    (void)conv;
-    return wxString(s, wxConvUTF8, len);
-#else
+#if !wxUSE_UNICODE

     if ( conv )
     {
     if ( conv )
     {

-        size_t nLen = (len != wxSTRING_MAXLEN) ? len :
-                          wxConvUTF8.MB2WC((wchar_t*) NULL, s, 0);
+        // there can be no embedded NULs in this string so we don't need the
+        // output length, it will be NUL-terminated
+        const wxWCharBuffer wbuf(
+            wxConvUTF8.cMB2WC(s, len == wxString::npos ? wxNO_LEN : len, NULL));

 
 

-        wchar_t *buf = new wchar_t[nLen+1];
-        wxConvUTF8.MB2WC(buf, s, nLen);
-        buf[nLen] = 0;
-        wxString str(buf, *conv, len);
-        delete[] buf;
-        return str;
+        return wxString(wbuf, *conv);

     }
     }

-    else
-        return wxString(s, len);
-#endif
+    // else: the string is wanted in UTF-8
+#endif // !wxUSE_UNICODE
+
+    wxUnusedVar(conv);
+    return wxString::FromUTF8(s, len);
+}
+
+// returns true if the given string contains only whitespaces
+bool wxIsWhiteOnly(const wxString& buf)
+{
+    for ( wxString::const_iterator i = buf.begin(); i != buf.end(); ++i )
+    {
+        wxChar c = *i;
+        if ( c != wxT(' ') && c != wxT('\t') && c != wxT('\n') && c != wxT('\r'))
+            return false;
+    }
+    return true;

 }
 
 }
 

+

 struct wxXmlParsingContext
 {
 struct wxXmlParsingContext
 {

+    XML_Parser parser;

     wxMBConv  *conv;
     wxXmlNode *root;
     wxXmlNode *node;
     wxXmlNode *lastAsText;
     wxString   encoding;
     wxString   version;
     wxMBConv  *conv;
     wxXmlNode *root;
     wxXmlNode *node;
     wxXmlNode *lastAsText;
     wxString   encoding;
     wxString   version;

+    bool       removeWhiteOnlyNodes;

 };
 
 };
 

+extern "C" {

 static void StartElementHnd(void *userData, const char *name, const char **atts)
 {
     wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;
 static void StartElementHnd(void *userData, const char *name, const char **atts)
 {
     wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;

-    wxXmlNode *node = new wxXmlNode(wxXML_ELEMENT_NODE, CharToString(ctx->conv, name));
+    wxXmlNode *node = new wxXmlNode(wxXML_ELEMENT_NODE,
+                                    CharToString(ctx->conv, name),
+                                    wxEmptyString,
+                                    XML_GetCurrentLineNumber(ctx->parser));

     const char **a = atts;
     const char **a = atts;

+

     while (*a)
     {
     while (*a)
     {

-        node->AddProperty(CharToString(ctx->conv, a[0]), CharToString(ctx->conv, a[1]));
+        node->AddAttribute(CharToString(ctx->conv, a[0]), CharToString(ctx->conv, a[1]));

         a += 2;
     }
     if (ctx->root == NULL)
         a += 2;
     }
     if (ctx->root == NULL)


@@ -413,34 +517,36 @@ static void EndElementHnd(void *userData, const char* WXUNUSED(name))
 static void TextHnd(void *userData, const char *s, int len)
 {
     wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;
 static void TextHnd(void *userData, const char *s, int len)
 {
     wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;

-    char *buf = new char[len + 1];
-
-    buf[len] = '\0';
-    memcpy(buf, s, (size_t)len);
+    wxString str = CharToString(ctx->conv, s, len);

 
     if (ctx->lastAsText)
     {
 
     if (ctx->lastAsText)
     {

-        ctx->lastAsText->SetContent(ctx->lastAsText->GetContent() +
-                                    CharToString(ctx->conv, buf));
+        ctx->lastAsText->SetContent(ctx->lastAsText->GetContent() + str);

     }
     else
     {
     }
     else
     {

-        bool whiteOnly = TRUE;
-        for (char *c = buf; *c != '\0'; c++)
-            if (*c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
-            {
-                whiteOnly = FALSE;
-                break;
-            }
+        bool whiteOnly = false;
+        if (ctx->removeWhiteOnlyNodes)
+            whiteOnly = wxIsWhiteOnly(str);
+

         if (!whiteOnly)
         {
         if (!whiteOnly)
         {

-            ctx->lastAsText = new wxXmlNode(wxXML_TEXT_NODE, wxT("text"),
-                                            CharToString(ctx->conv, buf));
+            ctx->lastAsText =
+                new wxXmlNode(wxXML_TEXT_NODE, wxT("text"), str,
+                              XML_GetCurrentLineNumber(ctx->parser));

             ctx->node->AddChild(ctx->lastAsText);
         }
     }
             ctx->node->AddChild(ctx->lastAsText);
         }
     }

+}
+
+static void StartCdataHnd(void *userData)
+{
+    wxXmlParsingContext *ctx = (wxXmlParsingContext*)userData;

 
 

-    delete[] buf;
+    ctx->lastAsText =
+        new wxXmlNode(wxXML_CDATA_SECTION_NODE, wxT("cdata"), wxT(""),
+                      XML_GetCurrentLineNumber(ctx->parser));
+    ctx->node->AddChild(ctx->lastAsText);

 }
 
 static void CommentHnd(void *userData, const char *data)
 }
 
 static void CommentHnd(void *userData, const char *data)


@@ -452,8 +558,10 @@ static void CommentHnd(void *userData, const char *data)
         // 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...
         // 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->node->AddChild(
+            new wxXmlNode(wxXML_COMMENT_NODE,
+                          wxT("comment"), CharToString(ctx->conv, data),
+                          XML_GetCurrentLineNumber(ctx->parser)));

     }
     ctx->lastAsText = NULL;
 }
     }
     ctx->lastAsText = NULL;
 }


@@ -482,7 +590,7 @@ static int UnknownEncodingHnd(void * WXUNUSED(encodingHandlerData),
     // 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:
     // 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));
+    wxCSConv conv(name);

     char mbBuf[2];
     wchar_t wcBuf[10];
     size_t i;
     char mbBuf[2];
     wchar_t wcBuf[10];
     size_t i;


@@ -499,7 +607,7 @@ static int UnknownEncodingHnd(void * WXUNUSED(encodingHandlerData),
         }
         info->map[i+1] = (int)wcBuf[0];
     }
         }
         info->map[i+1] = (int)wcBuf[0];
     }

-    
+

     info->data = NULL;
     info->convert = NULL;
     info->release = NULL;
     info->data = NULL;
     info->convert = NULL;
     info->release = NULL;


@@ -507,7 +615,9 @@ static int UnknownEncodingHnd(void * WXUNUSED(encodingHandlerData),
     return 1;
 }
 
     return 1;
 }
 

-bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)
+} // extern "C"
+
+bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding, int flags)

 {
 #if wxUSE_UNICODE
     (void)encoding;
 {
 #if wxUSE_UNICODE
     (void)encoding;


@@ -525,13 +635,16 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)
     ctx.encoding = wxT("UTF-8"); // default in absence of encoding=""
     ctx.conv = NULL;
 #if !wxUSE_UNICODE
     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") )
+    if ( encoding.CmpNoCase(wxT("UTF-8")) != 0 )

         ctx.conv = new wxCSConv(encoding);
 #endif
         ctx.conv = new wxCSConv(encoding);
 #endif

+    ctx.removeWhiteOnlyNodes = (flags & wxXMLDOC_KEEP_WHITESPACE_NODES) == 0;
+    ctx.parser = parser;

 
     XML_SetUserData(parser, (void*)&ctx);
     XML_SetElementHandler(parser, StartElementHnd, EndElementHnd);
     XML_SetCharacterDataHandler(parser, TextHnd);
 
     XML_SetUserData(parser, (void*)&ctx);
     XML_SetElementHandler(parser, StartElementHnd, EndElementHnd);
     XML_SetCharacterDataHandler(parser, TextHnd);

+    XML_SetStartCdataSectionHandler(parser, StartCdataHnd);

     XML_SetCommentHandler(parser, CommentHnd);
     XML_SetDefaultHandler(parser, DefaultHnd);
     XML_SetUnknownEncodingHandler(parser, UnknownEncodingHnd, NULL);
     XML_SetCommentHandler(parser, CommentHnd);
     XML_SetDefaultHandler(parser, DefaultHnd);
     XML_SetUnknownEncodingHandler(parser, UnknownEncodingHnd, NULL);


@@ -543,8 +656,10 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)
         done = (len < BUFSIZE);
         if (!XML_Parse(parser, buf, len, done))
         {
         done = (len < BUFSIZE);
         if (!XML_Parse(parser, buf, len, done))
         {

+            wxString error(XML_ErrorString(XML_GetErrorCode(parser)),
+                           *wxConvCurrent);

             wxLogError(_("XML parsing error: '%s' at line %d"),
             wxLogError(_("XML parsing error: '%s' at line %d"),

-                       XML_ErrorString(XML_GetErrorCode(parser)),
+                       error.c_str(),

                        XML_GetCurrentLineNumber(parser));
             ok = false;
             break;
                        XML_GetCurrentLineNumber(parser));
             ok = false;
             break;


@@ -553,10 +668,16 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)
 
     if (ok)
     {
 
     if (ok)
     {

-        SetVersion(ctx.version);
-        SetFileEncoding(ctx.encoding);
+        if (!ctx.version.empty())
+            SetVersion(ctx.version);
+        if (!ctx.encoding.empty())
+            SetFileEncoding(ctx.encoding);

         SetRoot(ctx.root);
     }
         SetRoot(ctx.root);
     }

+    else
+    {
+        delete ctx.root;
+    }

 
     XML_ParserFree(parser);
 #if !wxUSE_UNICODE
 
     XML_ParserFree(parser);
 #if !wxUSE_UNICODE


@@ -576,27 +697,42 @@ bool wxXmlDocument::Load(wxInputStream& stream, const wxString& encoding)
 
 // write string to output:
 inline static void OutputString(wxOutputStream& stream, const wxString& str,
 
 // write string to output:
 inline static void OutputString(wxOutputStream& stream, const wxString& str,

-                                wxMBConv *convMem, wxMBConv *convFile)
+                                wxMBConv *convMem = NULL,
+                                wxMBConv *convFile = NULL)

 {
 {

-    if (str.IsEmpty()) return;
+    if (str.empty())
+        return;
+

 #if wxUSE_UNICODE
 #if wxUSE_UNICODE

-    const wxWX2MBbuf buf(str.mb_str(convFile ? *convFile : wxConvUTF8));
+    wxUnusedVar(convMem);
+
+    const wxWX2MBbuf buf(str.mb_str(*(convFile ? convFile : &wxConvUTF8)));

     stream.Write((const char*)buf, strlen((const char*)buf));
     stream.Write((const char*)buf, strlen((const char*)buf));

-#else
-    if ( convFile == NULL )
-        stream.Write(str.mb_str(), str.Len());
-    else
+#else // !wxUSE_UNICODE
+    if ( convFile && convMem )

     {
         wxString str2(str.wc_str(*convMem), *convFile);
         stream.Write(str2.mb_str(), str2.Len());
     }
     {
         wxString str2(str.wc_str(*convMem), *convFile);
         stream.Write(str2.mb_str(), str2.Len());
     }

-#endif
+    else // no conversions to do
+    {
+        stream.Write(str.mb_str(), str.Len());
+    }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 }
 
 }
 

+// flags for OutputStringEnt()
+enum
+{
+    XML_ESCAPE_QUOTES = 1
+};
+

 // Same as above, but create entities first.
 // Translates '<' to "&lt;", '>' to "&gt;" and '&' to "&amp;"
 static void OutputStringEnt(wxOutputStream& stream, const wxString& str,
 // 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)
+                            wxMBConv *convMem = NULL,
+                            wxMBConv *convFile = NULL,
+                            int flags = 0)

 {
     wxString buf;
     size_t i, last, len;
 {
     wxString buf;
     size_t i, last, len;


@@ -608,21 +744,26 @@ static void OutputStringEnt(wxOutputStream& stream, const wxString& str,
     {
         c = str.GetChar(i);
         if (c == wxT('<') || c == wxT('>') ||
     {
         c = str.GetChar(i);
         if (c == wxT('<') || c == wxT('>') ||

-            (c == wxT('&') && str.Mid(i+1, 4) != wxT("amp;")))
+            (c == wxT('&') && str.Mid(i+1, 4) != wxT("amp;")) ||
+            ((flags & XML_ESCAPE_QUOTES) && c == wxT('"')))

         {
             OutputString(stream, str.Mid(last, i - last), convMem, convFile);
             switch (c)
             {
                 case wxT('<'):
         {
             OutputString(stream, str.Mid(last, i - last), convMem, convFile);
             switch (c)
             {
                 case wxT('<'):

-                    OutputString(stream, wxT("&lt;"), NULL, NULL);
+                    OutputString(stream, wxT("&lt;"));

                     break;
                 case wxT('>'):
                     break;
                 case wxT('>'):

-                    OutputString(stream, wxT("&gt;"), NULL, NULL);
+                    OutputString(stream, wxT("&gt;"));

                     break;
                 case wxT('&'):
                     break;
                 case wxT('&'):

-                    OutputString(stream, wxT("&amp;"), NULL, NULL);
+                    OutputString(stream, wxT("&amp;"));
+                    break;
+                case wxT('"'):
+                    OutputString(stream, wxT("&quot;"));
+                    break;
+                default:

                     break;
                     break;

-                default: break;

             }
             last = i + 1;
         }
             }
             last = i + 1;
         }


@@ -635,62 +776,68 @@ inline static void OutputIndentation(wxOutputStream& stream, int indent)
     wxString str = wxT("\n");
     for (int i = 0; i < indent; i++)
         str << wxT(' ') << wxT(' ');
     wxString str = wxT("\n");
     for (int i = 0; i < indent; i++)
         str << wxT(' ') << wxT(' ');

-    OutputString(stream, str, NULL, NULL);
+    OutputString(stream, str);

 }
 
 static void OutputNode(wxOutputStream& stream, wxXmlNode *node, int indent,
 }
 
 static void OutputNode(wxOutputStream& stream, wxXmlNode *node, int indent,

-                       wxMBConv *convMem, wxMBConv *convFile)
+                       wxMBConv *convMem, wxMBConv *convFile, int indentstep)

 {
     wxXmlNode *n, *prev;
 {
     wxXmlNode *n, *prev;

-    wxXmlProperty *prop;
+    wxXmlAttribute *attr;

 
     switch (node->GetType())
     {
 
     switch (node->GetType())
     {

+        case wxXML_CDATA_SECTION_NODE:
+            OutputString( stream, wxT("<![CDATA["));
+            OutputString( stream, node->GetContent() );
+            OutputString( stream, wxT("]]>") );
+            break;
+

         case wxXML_TEXT_NODE:
             OutputStringEnt(stream, node->GetContent(), convMem, convFile);
             break;
 
         case wxXML_ELEMENT_NODE:
         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);
+            OutputString(stream, wxT("<"));
+            OutputString(stream, node->GetName());

 
 

-            prop = node->GetProperties();
-            while (prop)
+            attr = node->GetAttributes();
+            while (attr)

             {
             {

-                OutputString(stream, wxT(" ") + prop->GetName() +
-                             wxT("=\"") + prop->GetValue() + wxT("\""),
-                             NULL, NULL);
-                // FIXME - what if prop contains '"'?
-                prop = prop->GetNext();
+                OutputString(stream, wxT(" ") + attr->GetName() +  wxT("=\""));
+                OutputStringEnt(stream, attr->GetValue(), convMem, convFile,
+                                XML_ESCAPE_QUOTES);
+                OutputString(stream, wxT("\""));
+                attr = attr->GetNext();

             }
 
             if (node->GetChildren())
             {
             }
 
             if (node->GetChildren())
             {

-                OutputString(stream, wxT(">"), NULL, NULL);
+                OutputString(stream, wxT(">"));

                 prev = NULL;
                 n = node->GetChildren();
                 while (n)
                 {
                 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);
+                    if (indentstep >= 0 && n && n->GetType() != wxXML_TEXT_NODE)
+                        OutputIndentation(stream, indent + indentstep);
+                    OutputNode(stream, n, indent + indentstep, convMem, convFile, indentstep);

                     prev = n;
                     n = n->GetNext();
                 }
                     prev = n;
                     n = n->GetNext();
                 }

-                if (prev && prev->GetType() != wxXML_TEXT_NODE)
+                if (indentstep >= 0 && prev && prev->GetType() != wxXML_TEXT_NODE)

                     OutputIndentation(stream, indent);
                     OutputIndentation(stream, indent);

-                OutputString(stream, wxT("</"), NULL, NULL);
-                OutputString(stream, node->GetName(), NULL, NULL);
-                OutputString(stream, wxT(">"), NULL, NULL);
+                OutputString(stream, wxT("</"));
+                OutputString(stream, node->GetName());
+                OutputString(stream, wxT(">"));

             }
             else
             }
             else

-                OutputString(stream, wxT("/>"), NULL, NULL);
+                OutputString(stream, wxT("/>"));

             break;
 
         case wxXML_COMMENT_NODE:
             break;
 
         case wxXML_COMMENT_NODE:

-            OutputString(stream, wxT("<!--"), NULL, NULL);
+            OutputString(stream, wxT("<!--"));

             OutputString(stream, node->GetContent(), convMem, convFile);
             OutputString(stream, node->GetContent(), convMem, convFile);

-            OutputString(stream, wxT("-->"), NULL, NULL);
+            OutputString(stream, wxT("-->"));

             break;
 
         default:
             break;
 
         default:


@@ -698,37 +845,43 @@ static void OutputNode(wxOutputStream& stream, wxXmlNode *node, int indent,
     }
 }
 
     }
 }
 

-bool wxXmlDocument::Save(wxOutputStream& stream) const
+bool wxXmlDocument::Save(wxOutputStream& stream, int indentstep) const

 {
     if ( !IsOk() )
 {
     if ( !IsOk() )

-        return FALSE;
+        return false;

 
     wxString s;
 
 
     wxString s;
 

-    wxMBConv *convMem = NULL, *convFile = NULL;
+    wxMBConv *convMem = NULL,
+             *convFile;
+

 #if wxUSE_UNICODE
     convFile = new wxCSConv(GetFileEncoding());
 #if wxUSE_UNICODE
     convFile = new wxCSConv(GetFileEncoding());

+    convMem = NULL;

 #else
 #else

-    if ( GetFileEncoding() != GetEncoding() )
+    if ( GetFileEncoding().CmpNoCase(GetEncoding()) != 0 )

     {
         convFile = new wxCSConv(GetFileEncoding());
         convMem = new wxCSConv(GetEncoding());
     }
     {
         convFile = new wxCSConv(GetFileEncoding());
         convMem = new wxCSConv(GetEncoding());
     }

+    else // file and in-memory encodings are the same, no conversion needed
+    {
+        convFile =
+        convMem = NULL;
+    }

 #endif
 
     s.Printf(wxT("<?xml version=\"%s\" encoding=\"%s\"?>\n"),
              GetVersion().c_str(), GetFileEncoding().c_str());
 #endif
 
     s.Printf(wxT("<?xml version=\"%s\" encoding=\"%s\"?>\n"),
              GetVersion().c_str(), GetFileEncoding().c_str());

-    OutputString(stream, s, NULL, NULL);
+    OutputString(stream, s);

 
 

-    OutputNode(stream, GetRoot(), 0, convMem, convFile);
-    OutputString(stream, wxT("\n"), NULL, NULL);
+    OutputNode(stream, GetRoot(), 0, convMem, convFile, indentstep);
+    OutputString(stream, wxT("\n"));

 
 

-    if ( convFile )
-        delete convFile;
-    if ( convMem )
-        delete convMem;
+    delete convFile;
+    delete convMem;

 
 

-    return TRUE;
+    return true;

 }
 
 #endif // wxUSE_XML
 }
 
 #endif // wxUSE_XML