[MOD] Get rid of childrenless tags in XMLd text

src/XEP-0393.c

@@ -294,6 +294,7 @@ ShoveXML(XEP393Element *element, XMLElement *xmlparent)
 {
     XMLElement *head = xmlparent;
     size_t i;
+    bool par = false;
     if (!element || !xmlparent)
     {
         return;
@@ -324,6 +325,7 @@ ShoveXML(XEP393Element *element, XMLElement *xmlparent)
         case XEP393_LINE:
             head = XMLCreateTag("p");
             XMLAddChild(xmlparent, head);
+            par = true;
             break;
         case XEP393_QUOT:
             head = XMLCreateTag("blockquote");
@@ -360,6 +362,17 @@ ShoveXML(XEP393Element *element, XMLElement *xmlparent)
             break;
         default: break;
     }
+
+    /* NOTE: Hack to get rid of stranded <p/>-tags with no 
+     * children. */
+    if (par && ArraySize(head->children) == 0)
+    {
+        ArrayDelete(
+            xmlparent->children,
+            ArraySize(xmlparent->children) - 1
+        );
+        XMLFreeElement(head);
+    }
 }
 
 #include <StringStream.h>

src/XML/Elements.c

@@ -162,3 +162,40 @@ XMLookForTKV(XMLElement *parent, char *tag, char *k, char *v)
 
     return NULL;
 }
+XMLElement *
+XMLCopy(XMLElement *original)
+{
+    XMLElement *ret = NULL;
+    if (!original)
+    {
+        return NULL;
+    }
+
+    ret = Malloc(sizeof(*ret));
+    ret->type = original->type;
+
+    ret->name = StrDuplicate(original->name);
+    ret->data = StrDuplicate(original->data);
+
+    if (original->children)
+    {
+        size_t i;
+        ret->children = ArrayCreate();
+        
+        for (i = 0; i < ArraySize(ret->children); i++)
+        {
+            ArrayAdd(ret->children, XMLCopy(ArrayGet(original->children, i)));
+        }
+    }
+    if (original->attrs)
+    {
+        char *name, *value;
+        ret->attrs = HashMapCreate();
+        while (HashMapIterate(original->attrs, &name, (void **) &value))
+        {
+            HashMapSet(ret->attrs, name, StrDuplicate(value));
+        }
+    }
+
+    return ret;
+}

src/include/XML.h

@@ -59,6 +59,7 @@ typedef struct XMLElement {
 extern XMLElement * XMLCDecode(Stream *stream, bool autofree, bool html);
 #define XMLDecode(stream, autofree) XMLCDecode(stream, autofree, false)
 
+extern XMLElement * XMLCopy(XMLElement *original);
 extern XMLElement * XMLCreateTag(char *name);
 extern XMLElement * XMLCreateText(char *data);
 extern void XMLAddAttr(XMLElement *element, char *key, char *val);