Re: tr '[:upper:]' '[:lower:]' -- misaligned construct

[Jim Meyering]

"James Youngman" <address@hidden> wrote:
> On Jan 5, 2008 9:01 AM, Jim Meyering <address@hidden> wrote:
>> > That machine is running in an ISO-8859 locale on openSUSE 11.0 FACTORY:
>
> I can reproduce the problem on Debian (Lenny; version 2.7-3 of the
> locales package with LANG=en_US.iso-8859-1).
>
>> That locale definition has 3 more upper-case letters than lower-case,
>
> I think it's the other way around; more lower than upper case letters
> (there's a small error in the ternary conditional in the code you

Right.  Good catch.

> posted).   In the Latin-1 locale I mention above, the difference is
> only two characters:
>
> Char 181 µ: lower case.  Equivalents: upper case equivalent is 181 µ: SAME
> Char 223 ß: lower case.  Equivalents: upper case equivalent is 223 ß: SAME

FYI, I get three with debian unstable's locales-all 2.7-5.
Same with rawhide.

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <locale.h>
int
main ()
{
  int n_upper = 0;
  int n_lower = 0;
  int i;

  setlocale (LC_ALL, "");

  for (i = 0; i < 256; i++)
    {
      printf ("%d %c: %s %s\n",
              i, i, islower (i) ? " L" : "", isupper (i) ? " U" : "");
      if (isupper (i))
        ++n_upper;
      if (islower (i))
        ++n_lower;
    }
  printf ("u: %d\n", n_upper);
  printf ("l: %d\n", n_lower);
  return !(n_lower == n_upper);
}