ascii.c

   1 #include <ctype.h>
   2
   3 static inline bool str_contains_upper(const char *s)
   4 {
   5         while (*s) {
   6                 if (isupper(*s++))
   7                         return true;
   8         }
   9         return false;
  10 }
  11
  12 static inline char *str_fold(const char *src)
  13 {
  14         char *t, *dest = malloc(strlen(src) + 1);
  15         if (!dest)
  16                 return NULL;
  17         for (t = dest; *src; src++, t++)
  18                 *t = tolower(*src);
  19         *t = '\0';
  20         return dest;
  21 }