Function subtract_xml_object

lib/common/xml.c:1448–1612

}

xmlNode *
subtract_xml_object(xmlNode *parent, xmlNode *left, xmlNode *right,
                    gboolean full, gboolean *changed, const char *marker)
{
    gboolean dummy = FALSE;
    gboolean skip = FALSE;
    xmlNode *diff = NULL;
    xmlNode *right_child = NULL;
    xmlNode *left_child = NULL;
    xmlAttrPtr xIter = NULL;

    const char *id = NULL;
    const char *name = NULL;
    const char *value = NULL;
    const char *right_val = NULL;

    int lpc = 0;
    static int filter_len = DIMOF(filter);

    if(changed == NULL) {
        changed = &dummy;
    }

    if(left == NULL) {
	return NULL;
    }

    id = ID(left);
    if(right == NULL) {
	xmlNode *deleted = NULL;

	crm_trace("Processing <%s id=%s> (complete copy)",
		    crm_element_name(left), id);
	deleted = add_node_copy(parent, left);
	crm_xml_add(deleted, XML_DIFF_MARKER, marker);

        *changed = TRUE;
	return deleted;
    }

    name = crm_element_name(left);
    CRM_CHECK(name != NULL, return NULL);

    /* check for XML_DIFF_MARKER in a child */ 
    value = crm_element_value(right, XML_DIFF_MARKER);
    if(value != NULL && strcmp(value, "removed:top") == 0) {
        crm_trace("We are the root of the deletion: %s.id=%s", name, id);
        *changed = TRUE;
	free_xml(diff);
	return NULL;
    }

    /* Avoiding creating the full heirarchy would save even more work here */
    diff = create_xml_node(parent, name);
	
    /* Reset filter */
    for(lpc = 0; lpc < filter_len; lpc++){
	filter[lpc].found = FALSE;