3 * - By John Hodge (thePowersGang)
15 extern int isalpha(int ch);
16 extern int isdigit(int ch);
17 extern int isalnum(int ch);
18 extern int isxdigit(int ch);
20 extern int islower(int ch);
21 extern int isupper(int ch);
22 extern int ispunct(int ch);
24 extern int isprint(int ch);
25 extern int isgraph(int ch);
27 extern int isspace(int ch);
29 extern int iscntrl(int ch);
32 extern int isblank(int ch);
35 extern int toupper(int ch);
36 extern int tolower(int ch);