+/**
+ * modest_text_utils_utf8_strcmp:
+ * @s1: the first string
+ * @s2: the second string
+ * @insensitive: should the comparison be case-insensitive?
+ *
+ * a strcmp that is NULL-safe, can deal with UTF8 and case-insensitive comparison
+ *
+ * Returns: an integer less than, equal to, or greater than zero if s1 is found,
+ * respectively, to be less than, to match, or be greater than s2.
+ */
+gint modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive);
+
+
+
+/**
+ * modest_text_utils_get_display_date:
+ * @date: the date to display
+ *
+ * get a string representation for a date.
+ *
+ * Returns: the new display date, as a newly allocated string;
+ * free with g_free
+ */
+gchar* modest_text_utils_get_display_date (time_t date);
+
+
+/**
+ * modest_text_utils_get_display_size:
+ * @size: size in bytes
+ *
+ * get a string representation for a size in bytes.
+ *
+ * Returns: the newly allocated display string for the
+ * size in bytes. must be freed.
+ */
+gchar * modest_text_utils_get_display_size (guint size);
+
+
+/**
+ * modest_text_utils_validate_email_address:
+ * @email_address: a string
+ *
+ * validates the email address passed as argument
+ *
+ * Returns: TRUE if the address is valid, FALSE otherwise
+ **/
+gboolean modest_text_utils_validate_email_address (const gchar *email_address);
+
+/**
+ * modest_text_utils_validate_recipient:
+ * @recipient: a string
+ *
+ * validates @recipient as a valid recipient field for header.
+ * It's different from modest_text_utils_validate_email_address()
+ * as it validates a whole recipient, and not only the part between
+ * the < and > symbols.
+ *
+ * Returns: %TRUE if the recipient is valid, FALSE otherwise
+ **/
+gboolean modest_text_utils_validate_recipient (const gchar *recipient);
+
+/**
+ * modest_text_utils_split_addresses_list:
+ * @addresses: a string
+ *
+ * obtains a GSList of addresses from a string of addresses
+ * in the format understood by email protocols
+ *
+ * Returns: a GSList of strings
+ **/
+GSList *modest_text_utils_split_addresses_list (const gchar *addresses);