-/* Return the number of columns required to display a localised string */
-static int strncols(const char *str)
-{
- int i, wlen, ncols = 0;
- wchar_t *wstr;
-
- wlen = mbstowcs(NULL, str, 0);
- if (wlen <= 0)
- return wlen;
-
- wstr = malloc(sizeof(wchar_t) * wlen + 1);
- if (!wstr)
- return -1;
-
- wlen = mbstowcs(wstr, str, wlen);
- if (wlen <= 0) {
- free(wstr);
- return wlen;
- }
-
- /* Processing each character individually lets us use the same
- * check for all languages */
- for (i = 0; i < wlen; i++) {
- ncols += wcwidth(wstr[i]);
- }
-
- free(wstr);
- return ncols;
-}
-