Function _cups_isalnum

cups/string-private.h:82–88

#  ifdef _CUPS_INLINE
_CUPS_INLINE int			/* O - 1 on match, 0 otherwise */
_cups_isalnum(int ch)			/* I - Character to test */
{
  return ((ch >= '0' && ch <= '9') ||
          (ch >= 'A' && ch <= 'Z') ||
          (ch >= 'a' && ch <= 'z'));
}

_CUPS_INLINE int			/* O - 1 on match, 0 otherwise */
_cups_isalpha(int ch)			/* I - Character to test */