[glade] Added new funtions to handle document level comments glade_xml_doc_new_comment(), glade_xml_node_pre

[Juan Pablo Ugarte <jpu src gnome org>]

commit eba6befa449bba7ca432c3c09f97b60e5f29570a
Author: Juan Pablo Ugarte <juanpablougarte gmail com>
Date:   Fri Jul 19 15:55:54 2013 -0300

    Added new funtions to handle document level comments
    glade_xml_doc_new_comment(), glade_xml_node_prev_with_comments (),
    glade_xml_node_add_prev_sibling () and glade_xml_node_add_next_sibling ()

 gladeui/glade-xml-utils.c |   25 +++++++++++++++++++++++++
 gladeui/glade-xml-utils.h |    5 ++++-
 2 files changed, 29 insertions(+), 1 deletions(-)
---
diff --git a/gladeui/glade-xml-utils.c b/gladeui/glade-xml-utils.c
index aea3f77..e9c9145 100644
--- a/gladeui/glade-xml-utils.c
+++ b/gladeui/glade-xml-utils.c
@@ -858,6 +858,13 @@ glade_xml_node_next_with_comments (GladeXmlNode * node_in)
   return (GladeXmlNode *) node->next;
 }
 
+GladeXmlNode *
+glade_xml_node_prev_with_comments (GladeXmlNode * node_in)
+{
+  xmlNodePtr node = (xmlNodePtr) node_in;
+
+  return (GladeXmlNode *) node->prev;
+}
 
 const gchar *
 glade_xml_node_get_name (GladeXmlNode * node_in)
@@ -962,3 +969,21 @@ glade_xml_load_sym_from_node (GladeXmlNode * node_in,
     }
   return retval;
 }
+
+GladeXmlNode *
+glade_xml_doc_new_comment (GladeXmlDoc *doc, const gchar *comment)
+{
+  return (GladeXmlNode *) xmlNewDocComment ((xmlDocPtr) (doc), BAD_CAST (comment));
+}
+
+GladeXmlNode *
+glade_xml_node_add_prev_sibling (GladeXmlNode *node, GladeXmlNode *new_node)
+{
+  return (GladeXmlNode *) xmlAddPrevSibling ((xmlNodePtr) node, (xmlNodePtr) new_node);
+}
+
+GladeXmlNode *
+glade_xml_node_add_next_sibling (GladeXmlNode *node, GladeXmlNode *new_node)
+{
+  return (GladeXmlNode *) xmlAddNextSibling ((xmlNodePtr) node, (xmlNodePtr) new_node);
+}
diff --git a/gladeui/glade-xml-utils.h b/gladeui/glade-xml-utils.h
index c08f821..80d3a38 100644
--- a/gladeui/glade-xml-utils.h
+++ b/gladeui/glade-xml-utils.h
@@ -234,8 +234,10 @@ void           glade_xml_node_append_child (GladeXmlNode * node, GladeXmlNode *
 void           glade_xml_node_remove (GladeXmlNode *node_in);
 gboolean       glade_xml_node_is_comment (GladeXmlNode *node_in);
 GladeXmlNode * glade_xml_node_next_with_comments (GladeXmlNode *node_in);
+GladeXmlNode * glade_xml_node_prev_with_comments (GladeXmlNode * node_in);
 GladeXmlNode * glade_xml_node_get_children_with_comments (GladeXmlNode *node);
-
+GladeXmlNode * glade_xml_node_add_prev_sibling (GladeXmlNode *node, GladeXmlNode *new_node);
+GladeXmlNode * glade_xml_node_add_next_sibling (GladeXmlNode *node, GladeXmlNode *new_node);
 
 /* Document Operatons */
 GladeXmlNode * glade_xml_doc_get_root (GladeXmlDoc *doc);
@@ -243,6 +245,7 @@ GladeXmlDoc *  glade_xml_doc_new (void);
 void           glade_xml_doc_set_root (GladeXmlDoc *doc, GladeXmlNode *node);
 void           glade_xml_doc_free (GladeXmlDoc *doc_in);
 gint           glade_xml_doc_save (GladeXmlDoc *doc_in, const gchar *full_path);
+GladeXmlNode * glade_xml_doc_new_comment (GladeXmlDoc *doc, const gchar *comment);
 
 /* Parse Context */
 GladeXmlContext * glade_xml_context_new     (GladeXmlDoc *doc, const gchar *name_space);