text-data-import-dialog: Convert input lines to UTF-8 upon read.

Otherwise we can try to display, e.g., ISO 8859-1 with Pango, which
only supports UTF-8, and we get a Gtk-CRITICAL as a result.

Reported by "Alain-F. Nizard" <Alain.Nizard@ac-creteil.fr>
via Jeremy Lavergne <jeremy@lavergne.gotdns.org>.

diff --git a/src/ui/gui/text-data-import-dialog.c b/src/ui/gui/text-data-import-dialog.c
index 907dd7ab4cb683ebe4f61a3fcc842ec35ec64e48..f8fa9c3a4623e1d43d688517991e098407675926 100644 (file)
--- a/src/ui/gui/text-data-import-dialog.c
+++ b/src/ui/gui/text-data-import-dialog.c
@@ -434,6 +434,7 @@ init_file (struct import_assistant *ia, GtkWindow *parent_window)
   enum { MAX_PREVIEW_LINES = 1000 }; /* Max number of lines to read. */
   enum { MAX_LINE_LEN = 16384 }; /* Max length of an acceptable line. */
   struct line_reader *reader;
+  struct string input;
 
   file->file_name = choose_file (parent_window, &file->encoding);
   if (file->file_name == NULL)
@@ -447,14 +448,13 @@ init_file (struct import_assistant *ia, GtkWindow *parent_window)
       return false;
     }
 
+  ds_init_empty (&input);
   file->lines = xnmalloc (MAX_PREVIEW_LINES, sizeof *file->lines);
   for (; file->line_cnt < MAX_PREVIEW_LINES; file->line_cnt++)
     {
-      struct string *line = &file->lines[file->line_cnt];
-
-      ds_init_empty (line);
-      if (!line_reader_read (reader, line, MAX_LINE_LEN + 1)
-          || ds_length (line) > MAX_LINE_LEN)
+      ds_clear (&input);
+      if (!line_reader_read (reader, &input, MAX_LINE_LEN + 1)
+          || ds_length (&input) > MAX_LINE_LEN)
         {
           if (line_reader_eof (reader))
             break;
@@ -468,9 +468,15 @@ init_file (struct import_assistant *ia, GtkWindow *parent_window)
                  file->file_name, MAX_LINE_LEN);
           line_reader_close (reader);
           destroy_file (ia);
+          ds_destroy (&input);
           return false;
         }
+
+      ds_init_cstr (&file->lines[file->line_cnt],
+                    recode_string ("UTF-8", line_reader_get_encoding (reader),
+                                   ds_cstr (&input), ds_length (&input)));
     }
+  ds_destroy (&input);
 
   if (file->line_cnt == 0)
     {