+ int status = 0;
+ int i;
+
+ for (i = 2; i < argc; i++)
+ if (!is_encoding_supported (argv[i]))
+ {
+ printf ("encoding \"%s\" is NOT supported\n", argv[i]);
+ status = 77;
+ }
+ i18n_done ();
+ exit (status);
+ }
+ if (argc == 5 && !strcmp (argv[1], "recode"))
+ {
+ const char *from = argv[2];
+ const char *to = argv[3];
+ char *string = backslash_decode (argv[4]);
+ char *result = recode_string (to, from, string, -1);
+ puts (result);
+ assert (strlen (result) == recode_string_len (to, from, string, -1));
+ free (string);
+ free (result);
+ }
+ else if (argc == 6 && !strcmp (argv[1], "concat"))
+ {
+ char *head = backslash_decode (argv[2]);
+ char *tail = backslash_decode (argv[3]);
+ const char *encoding = argv[4];
+ int max_len = atoi (argv[5]);
+ char *result;
+
+ result = utf8_encoding_concat (head, tail, encoding, max_len);
+ puts (result);
+
+ assert (strlen (result)
+ == utf8_encoding_concat_len (head, tail, encoding, max_len));
+
+ if (tail[0] == '\0')
+ {
+ char *result2 = utf8_encoding_trunc (head, encoding, max_len);
+ assert (!strcmp (result, result2));
+ assert (strlen (result2)
+ == utf8_encoding_trunc_len (head, encoding, max_len));
+ free (result2);
+ }
+
+ free (result);
+ free (head);
+ free (tail);
+ }
+ else
+ {
+ fprintf (stderr, "\
+usage: %s supports_encodings ENCODING...\n\
+where ENCODING is the name of an encoding.\n\
+Exits with status 0 if all the encodings are supported, 77 otherwise.\n\
+\n\
+usage: %s recode FROM TO STRING\n\
+where FROM is the source encoding,\n\
+ TO is the target encoding,\n\
+ and STRING is the text to recode.\n\
+\n\
+usage: %s concat HEAD TAIL ENCODING MAX_LEN\n\
+where HEAD is the first string to concatenate\n\
+ TAIL is the second string to concatenate\n\
+ ENCODING is the encoding in which to measure the result's length\n\
+ MAX_LEN is the maximum length of the result in ENCODING.\n",
+ argv[0], argv[0], argv[0]);