Adam Martinson : msxml3: Expose the XML parser SAX callback interface.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 776a8662f088e75e88284cc0fc8e72d768771a6f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=776a8662f088e75e88284cc0fc...

Author: Adam Martinson 
Date:   Wed Sep 29 16:04:38 2010 -0500

msxml3: Expose the XML parser SAX callback interface.

This eliminates a few function calls; libxml will call this indirectly
through the old method.  By writing our own callback functions or
wrapping the default ones we can manipulate the xmlDoc as it's being
parsed, allowing us to match the way msxml parses.

---

dlls/msxml3/domdoc.c |   59 ++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 43 insertions(+), 16 deletions(-)

diff --git a/dlls/msxml3/domdoc.c b/dlls/msxml3/domdoc.c
index 8d6c5f1..ad1a858 100644
--- a/dlls/msxml3/domdoc.c
+++ b/dlls/msxml3/domdoc.c
@@ -50,6 +50,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(msxml);

#include <libxml/xpathInternals.h>
 #include <libxml/xmlsave.h>
+#include <libxml/SAX2.h>

/* not defined in older versions */
 #define XML_SAVE_FORMAT     1
@@ -287,21 +288,47 @@ xmlNodePtr xmldoc_unlink_xmldecl(xmlDocPtr doc)
     return node;
 }

-static xmlDocPtr doparse( char *ptr, int len, const char *encoding )
+static xmlDocPtr doparse(domdoc* This, char *ptr, int len)
 {
     xmlDocPtr doc;
-
-#ifdef HAVE_XMLREADMEMORY
-    /*
-     * use xmlReadMemory if possible so we can suppress
-     * writing errors to stderr
-     */
-    doc = xmlReadMemory( ptr, len, NULL, encoding,
-                           XML_PARSE_NOERROR | XML_PARSE_NOWARNING | XML_PARSE_NOBLANKS );
-#else
-    doc = xmlParseMemory( ptr, len );
-#endif
-
+    static xmlSAXHandler sax_handler = {
+        xmlSAX2InternalSubset,          /* internalSubset */
+        xmlSAX2IsStandalone,            /* isStandalone */
+        xmlSAX2HasInternalSubset,       /* hasInternalSubset */
+        xmlSAX2HasExternalSubset,       /* hasExternalSubset */
+        xmlSAX2ResolveEntity,           /* resolveEntity */
+        xmlSAX2GetEntity,               /* getEntity */
+        xmlSAX2EntityDecl,              /* entityDecl */
+        xmlSAX2NotationDecl,            /* notationDecl */
+        xmlSAX2AttributeDecl,           /* attributeDecl */
+        xmlSAX2ElementDecl,             /* elementDecl */
+        xmlSAX2UnparsedEntityDecl,      /* unparsedEntityDecl */
+        xmlSAX2SetDocumentLocator,      /* setDocumentLocator */
+        xmlSAX2StartDocument,           /* startDocument */
+        xmlSAX2EndDocument,             /* endDocument */
+        xmlSAX2StartElement,            /* startElement */
+        xmlSAX2EndElement,              /* endElement */
+        xmlSAX2Reference,               /* reference */
+        xmlSAX2Characters,              /* characters */
+        NULL,                           /* TODO: ignorableWhitespace */
+        xmlSAX2ProcessingInstruction,   /* processingInstruction */
+        xmlSAX2Comment,                 /* comment */
+        NULL,                           /* TODO: warning */
+        NULL,                           /* TODO: error */
+        NULL,                           /* TODO: fatalError */
+        xmlSAX2GetParameterEntity,      /* getParameterEntity */
+        xmlSAX2CDataBlock,              /* cdataBlock */
+        xmlSAX2ExternalSubset,          /* externalSubset */
+        0,                              /* initialized */
+        NULL,                           /* _private */
+        xmlSAX2StartElementNs,          /* startElementNs */
+        xmlSAX2EndElementNs,            /* endElementNs */
+        NULL                            /* TODO: serror */
+    };
+
+    doc = xmlSAXParseMemoryWithData(&sax_handler, ptr, len, 0, This);
+
+    /* TODO: put this in one of the SAX callbacks */
     /* create first child as a <?xml...?> */
     if (doc && doc->standalone != -1)
     {
@@ -531,7 +558,7 @@ static HRESULT WINAPI domdoc_IPersistStreamInit_Load(
     len = GlobalSize(hglobal);
     ptr = GlobalLock(hglobal);
     if (len != 0)
-        xmldoc = doparse(ptr, len, NULL);
+        xmldoc = doparse(This, ptr, len);
     GlobalUnlock(hglobal);

if (!xmldoc)
@@ -1718,7 +1745,7 @@ static HRESULT domdoc_onDataAvailable(void *obj, char *ptr, DWORD len)
     domdoc *This = obj;
     xmlDocPtr xmldoc;

-    xmldoc = doparse( ptr, len, NULL );
+    xmldoc = doparse(This, ptr, len);
     if(xmldoc) {
         xmldoc->_private = create_priv();
         return attach_xmldoc(This, xmldoc);
@@ -1956,7 +1983,7 @@ static HRESULT WINAPI domdoc_loadXML(

if ( bstrXML && bstr_to_utf8( bstrXML, &str, &len ) )
         {
-            xmldoc = doparse( str, len, "UTF-8" );
+            xmldoc = doparse(This, str, len);
             heap_free( str );
             if ( !xmldoc )
                 This->error = E_FAIL;