/*********************************************************
 * From C PROGRAMMING: A MODERN APPROACH, Second Edition *
 * By K. N. King                                         *
 * Copyright (c) 2008, 1996 W. W. Norton & Company, Inc. *
 * All rights reserved.                                  *
 * This program may be freely distributed for class use, *
 * provided that this copyright notice is retained.      *
 *********************************************************/

/* tclassify.c (Chapter 23, page 613) */
/* Tests the character-classification functions */

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

#define TEST(f) printf("  %c  ", f(*p) ? 'x' : ' ')

int main(void)
{
  char *p;

  printf("     alnum     cntrl     graph     print"
         "     space    xdigit\n"
         "          alpha     digit     lower     punct"
         "     upper\n");

  for (p = "azAZ0 !\t"; *p != '\0'; p++) {
    if (iscntrl(*p))
      printf("\\x%02x:", *p);
    else
      printf("   %c:", *p);
    TEST(isalnum);
    TEST(isalpha);
    TEST(iscntrl);
    TEST(isdigit);
    TEST(isgraph);
    TEST(islower);
    TEST(isprint);
    TEST(ispunct);
    TEST(isspace);
    TEST(isupper);
    TEST(isxdigit);
    printf("\n");
  }

  return 0;
}