* make modest handle mailing lists somewhat correcter (RFC2369):

[modest] / src / modest-text-utils.c

diff --git a/src/modest-text-utils.c b/src/modest-text-utils.c
index f6f6efb..de70fa4 100644 (file)
--- a/src/modest-text-utils.c
+++ b/src/modest-text-utils.c
@@ -330,10 +330,48 @@ modest_text_utils_remove_address (const gchar *address_list, const gchar *addres
        return result;
 }
 
+
+gchar*
+modest_text_utils_remove_duplicate_addresses (const gchar *address_list)
+{
+       GSList *addresses, *cursor;
+       GHashTable *table;
+       gchar *new_list;
+       
+       g_return_val_if_fail (address_list, NULL);
+
+       table = g_hash_table_new (g_str_hash, g_str_equal);
+       addresses = modest_text_utils_split_addresses_list (address_list);
+
+       new_list = g_strdup("");
+       cursor = addresses;
+       while (cursor) {
+               const gchar* address = (const gchar*)cursor->data;
+
+               /* ignore the address if already seen */
+               if (g_hash_table_lookup (table, address) == 0) {
+               
+                       gchar *tmp = g_strjoin (",", new_list, address, NULL);
+                       g_free (new_list);
+                       new_list = tmp;
+                       
+                       g_hash_table_insert (table, (gchar*)address, GINT_TO_POINTER(1));
+               }
+               cursor = g_slist_next (cursor);
+       }
+
+       g_hash_table_destroy (table);
+       g_slist_foreach (addresses, (GFunc)g_free, NULL);
+       g_slist_free (addresses);
+
+       return new_list;
+}
+
+
 static void
 modest_text_utils_convert_buffer_to_html_start (GString *html, const gchar *data, gssize n)
 {
-       guint            i;
+       guint           i;
        gboolean        space_seen = FALSE;
        guint           break_dist = 0; /* distance since last break point */
 
@@ -514,6 +552,7 @@ modest_text_utils_get_addresses_indexes (const gchar *addresses, GSList **start_
        return;
 }
 
+#if 0
 GSList *
 modest_text_utils_split_addresses_list (const gchar *addresses)
 {
@@ -556,6 +595,43 @@ modest_text_utils_split_addresses_list (const gchar *addresses)
        return result;
 
 }
+#endif
+
+
+
+
+GSList *
+modest_text_utils_split_addresses_list (const gchar *addresses)
+{
+       GSList *head;
+       const gchar *my_addrs = addresses;
+       const gchar *end;
+       gchar *addr;
+       
+       /* skip any space, ',', ';' at the start */
+       while (my_addrs && (my_addrs[0] == ' ' || my_addrs[0] == ',' || my_addrs[0] == ';'))
+              ++my_addrs;
+
+       /* are we at the end of addresses list? */
+       if (!my_addrs[0])
+               return NULL;
+       
+       /* nope, we are at the start of some address
+        * now, let's find the end of the address */
+       end = my_addrs + 1;
+       while (end[0] && end[0] != ',' && end[0] != ';')
+               ++end;
+
+       /* we got the address; copy it and remove trailing whitespace */
+       addr = g_strndup (my_addrs, end - my_addrs);
+       g_strchomp (addr);
+
+       head = g_slist_append (NULL, addr);
+       head->next = modest_text_utils_split_addresses_list (end); /* recurse */
+
+       return head;
+}
+
 
 void
 modest_text_utils_address_range_at_position (const gchar *recipients_list,