avoid returning default namespace when searching from an attribute reverse

* tree.c: avoid returning default namespace when searching
  from an attribute
* entities.c xmlwriter.c: reverse xmlEncodeSpecialChars() behaviour
  back to escaping " since the normal serialization routines do not
  use it anymore, should close bug #134477 . Tried to make
  the writer avoid it too but it didn't work.
Daniel

ChangeLog

+Sun May 16 23:12:35 CEST 2004 Daniel Veillard <daniel@veillard.com>
+
+	* tree.c: avoid returning default namespace when searching
+	  from an attribute
+	* entities.c xmlwriter.c: reverse xmlEncodeSpecialChars() behaviour
+	  back to escaping " since the normal serialization routines do not
+	  use it anymore, should close bug #134477 . Tried to make 
+	  the writer avoid it too but it didn't work.
+
 Sun May 16 01:07:16 CEST 2004 Daniel Veillard <daniel@veillard.com>
 	* doc/ChangeLog.awk doc/ChangeLog.xsl: fixed escaping

entities.c

@@ -625,7 +625,6 @@ xmlEncodeSpecialChars(xmlDocPtr doc ATTRIBUTE_UNUSED, const xmlChar *input) {
 	    *out++ = 'm';
 	    *out++ = 'p';
 	    *out++ = ';';
-#if 0
 	} else if (*cur == '"') {
 	    *out++ = '&';
 	    *out++ = 'q';
@@ -633,7 +632,6 @@ xmlEncodeSpecialChars(xmlDocPtr doc ATTRIBUTE_UNUSED, const xmlChar *input) {
 	    *out++ = 'o';
 	    *out++ = 't';
 	    *out++ = ';';
-#endif
 	} else if (*cur == '\r') {
 	    *out++ = '&';
 	    *out++ = '#';

tree.c

@@ -5481,6 +5481,7 @@ xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
 {
     xmlNsPtr cur;
     xmlNodePtr orig = node;
+    int is_attr;
 
     if ((node == NULL) || (href == NULL))
         return (NULL);
@@ -5524,6 +5525,7 @@ xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
         }
         return (doc->oldNs);
     }
+    is_attr = (node->type == XML_ATTRIBUTE_NODE);
     while (node != NULL) {
         if ((node->type == XML_ENTITY_REF_NODE) ||
             (node->type == XML_ENTITY_NODE) ||
@@ -5534,7 +5536,8 @@ xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
             while (cur != NULL) {
                 if ((cur->href != NULL) && (href != NULL) &&
                     (xmlStrEqual(cur->href, href))) {
-		    if (xmlNsInScope(doc, orig, node, cur->href) == 1)
+		    if (((!is_attr) || (cur->prefix != NULL)) &&
+		        (xmlNsInScope(doc, orig, node, cur->href) == 1))
 			return (cur);
                 }
                 cur = cur->next;
@@ -5544,7 +5547,8 @@ xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
                 if (cur != NULL) {
                     if ((cur->href != NULL) && (href != NULL) &&
                         (xmlStrEqual(cur->href, href))) {
-		        if (xmlNsInScope(doc, orig, node, cur->href) == 1)
+			if (((!is_attr) || (cur->prefix != NULL)) &&
+		            (xmlNsInScope(doc, orig, node, cur->href) == 1))
 			    return (cur);
                     }
                 }

xmlwriter.c

@@ -1326,6 +1326,10 @@ xmlTextWriterWriteString(xmlTextWriterPtr writer, const xmlChar * content)
             switch (p->state) {
                 case XML_TEXTWRITER_NAME:
                 case XML_TEXTWRITER_TEXT:
+#if 0
+                    buf = NULL;
+		    xmlOutputBufferWriteEscape(writer->out, content, NULL);
+#endif
                     buf = xmlEncodeSpecialChars(NULL, content);
                     break;
                 case XML_TEXTWRITER_ATTRIBUTE: