+ else
+ {
+#ifdef MULTIBYTE_CHARS
+ wchar_t wc;
+ int i;
+ int char_len = -1;
+ for (i = 1; i <= longest_char; ++i)
+ {
+ token_buffer[i - 1] = c;
+ char_len = local_mbtowc (& wc, token_buffer, i);
+ if (char_len != -1)
+ break;
+ c = *lexptr++;
+ }
+ if (char_len > 1)
+ {
+ /* mbtowc sometimes needs an extra char before accepting */
+ if (char_len < i)
+ lexptr--;
+ if (! wide_flag)
+ {
+ /* Merge character into result; ignore excess chars. */
+ for (i = 1; i <= char_len; ++i)
+ {
+ if (i > max_chars)
+ break;
+ if (width < HOST_BITS_PER_INT)
+ result = (result << width)
+ | (token_buffer[i - 1]
+ & ((1 << width) - 1));
+ else
+ result = token_buffer[i - 1];
+ }
+ num_chars += char_len;
+ continue;
+ }
+ }
+ else
+ {
+ if (char_len == -1)
+ warning ("Ignoring invalid multibyte character");
+ }
+ if (wide_flag)
+ c = wc;
+#endif /* ! MULTIBYTE_CHARS */
+ }