[gedit/wip/swilmet/tepl-step3: 16/22] Utils: use str truncate functions from Tepl

[Sébastien Wilmet <swilmet src gnome org>]

commit 9d559fcf4eca0a86fef7318f0f3341b1329d518a
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Nov 4 15:49:13 2019 +0100

    Utils: use str truncate functions from Tepl
    
    This is just a first step, much more can be re-used from Tepl, and Tepl
    should be developed alongside gedit, to improve Tepl and reduce the
    amount of code from gedit.

 gedit/gedit-utils.c | 66 +++--------------------------------------------------
 1 file changed, 3 insertions(+), 63 deletions(-)
---
diff --git a/gedit/gedit-utils.c b/gedit/gedit-utils.c
index 10ff52337..6e1f2bf25 100644
--- a/gedit/gedit-utils.c
+++ b/gedit/gedit-utils.c
@@ -24,6 +24,7 @@
 
 #include <string.h>
 #include <glib/gi18n.h>
+#include <tepl/tepl.h>
 
 /* For the workspace/viewport stuff */
 #ifdef GDK_WINDOWING_X11
@@ -214,79 +215,18 @@ gedit_warning (GtkWindow *parent, const gchar *format, ...)
        gtk_widget_show (dialog);
 }
 
-/* the following functions are taken from eel */
-
-static gchar *
-gedit_utils_str_truncate (const gchar *string,
-                         guint        truncate_length,
-                         gboolean     middle)
-{
-       GString     *truncated;
-       guint        length;
-       guint        n_chars;
-       guint        num_left_chars;
-       guint        right_offset;
-       guint        delimiter_length;
-       const gchar *delimiter = "\342\200\246";
-
-       g_return_val_if_fail (string != NULL, NULL);
-
-       length = strlen (string);
-
-       g_return_val_if_fail (g_utf8_validate (string, length, NULL), NULL);
-
-       /* It doesnt make sense to truncate strings to less than
-        * the size of the delimiter plus 2 characters (one on each
-        * side)
-        */
-       delimiter_length = g_utf8_strlen (delimiter, -1);
-       if (truncate_length < (delimiter_length + 2))
-       {
-               return g_strdup (string);
-       }
-
-       n_chars = g_utf8_strlen (string, length);
-
-       /* Make sure the string is not already small enough. */
-       if (n_chars <= truncate_length)
-       {
-               return g_strdup (string);
-       }
-
-       /* Find the 'middle' where the truncation will occur. */
-       if (middle)
-       {
-               num_left_chars = (truncate_length - delimiter_length) / 2;
-               right_offset = n_chars - truncate_length + num_left_chars + delimiter_length;
-
-               truncated = g_string_new_len (string,
-                                             g_utf8_offset_to_pointer (string, num_left_chars) - string);
-               g_string_append (truncated, delimiter);
-               g_string_append (truncated, g_utf8_offset_to_pointer (string, right_offset));
-       }
-       else
-       {
-               num_left_chars = truncate_length - delimiter_length;
-               truncated = g_string_new_len (string,
-                                             g_utf8_offset_to_pointer (string, num_left_chars) - string);
-               g_string_append (truncated, delimiter);
-       }
-
-       return g_string_free (truncated, FALSE);
-}
-
 gchar *
 gedit_utils_str_middle_truncate (const gchar *string,
                                 guint        truncate_length)
 {
-       return gedit_utils_str_truncate (string, truncate_length, TRUE);
+       return tepl_utils_str_middle_truncate (string, truncate_length);
 }
 
 gchar *
 gedit_utils_str_end_truncate (const gchar *string,
                              guint        truncate_length)
 {
-       return gedit_utils_str_truncate (string, truncate_length, FALSE);
+       return tepl_utils_str_end_truncate (string, truncate_length);
 }
 
 gchar *