/* ctypetst.c (emx+gcc) */

#include <ctype.h>
#include <string.h>
#include <stdio.h>

#define TEST(is) do {start (#is); \
                     for (i=-1; i<=255; ++i) if (is(i)) show(i); \
                     end (); } while (0)

static int pos, indent, str;

static void start (char *s)
{
  fputs (s, stdout);
  fputs (": ", stdout);
  pos = indent = strlen (s) + 2;
  str = 0;
}

static void end (void)
{
  if (str != 0)
    {
      str = 0; putchar ('"');
    }
  if (pos != 0)
    {
      putchar ('\n'); pos = 0;
    }
}

static void show (int i)
{
  static char hex[] = "0123456789ABCDEF";

  if (pos > 70)
    {
      int j;
      
      if (str)
        {
          str = 0; putchar ('"');
        }
      putchar ('\n');
      for (j = 0; j < indent; ++j)
        putchar (' ');
      pos = indent;
    }
  if (i >= ' ' && i < 127)
    {
      if (!str)
        {
          if (pos != indent)
            {
              putchar (' '); ++pos;
            }
          str = 1; putchar ('"'); ++pos;
        }
      if (i == '"' || i == '\\')
        {
          putchar ('\\'); ++pos;
        }
      putchar (i); ++pos;
    }
  else
    {
      if (str)
        {
          str = 0;
          putchar ('"'); ++pos;
        }
      if (pos != indent)
        {
          putchar (' '); ++pos;
        }
      if (i < 0)
        {
          putchar ('-'); ++pos;
          i = -i;
        }
      putchar (hex[(i/16)%16]);
      putchar (hex[i%16]);
      pos += 2;
    }
}

int main (int argc, char *argv[])
{
  int i, buf_mode;

  buf_mode = _IONBF;
  for (i = 1; i < argc; ++i)
    if (strcmp (argv[i], "-l") == 0)
      buf_mode = _IOLBF;
    else if (strcmp (argv[i], "-f") == 0)
      buf_mode = _IOFBF;
    else if (strcmp (argv[i], "-n") == 0)
      buf_mode = _IONBF;
    else
      {
        puts ("Usage: ctypetst [-f] [-l] [-n]");
        return (1);
      }
  setvbuf (stdout, NULL, buf_mode, BUFSIZ);
  TEST (isprint);
  TEST (isgraph);
  TEST (isupper);
  TEST (islower);
  TEST (isalpha);
  TEST (isdigit);
  TEST (isxdigit);
  TEST (isalnum);
  TEST (ispunct);
  TEST (isspace);
  TEST (iscntrl);
  return (0);
}