NAME
        printf - print a formatted output line to the standard output.

   SYNOPSIS
        printf(formatstring [,value [,values] ] );

   FUNCTION
        format the output in accordance with specifications in the format
        string.

   INPUTS
        formatString - a C-language-like NULL-terminated format string,
                       with the following supported % options:

          %[flags][width][.limit][length]type

            $     - must follow the arg_pos value, if specified
          flags   - only one allowed. '-' specifies left justification.
          width   - field width. If the first character is a '0', the
                    field is padded with leading 0s.
            .     - must precede the field width value, if specified
          limit   - maximum number of characters to output from a string.
                    (only valid for %s or %b).
          length  - size of input data defaults to word (16-bit) for types c,
                    d, u and x, 'l' changes this to long (32-bit).
          type    - supported types are:
                          b - BSTR, data is 32-bit bptr to byte count followed
                              by a byte string. A NULL bptr is treated as an
                              empty string. (V36)
                          d - signed decimal
                          u - unsigned decimal
                          x - hexadecimal with hex digits in uppercase
                          X - hexadecimal with hex digits in lowercase
                          s - string, a 32-bit pointer to a NULL-terminated
                              byte string. A NULL pointer is treated
                              as an empty string.
                          c - character

        value(s) - numeric variables or addresses of null-terminated strings
                   to be added to the format information.

   NOTE
        The global "_stdout" must be defined, and contain a pointer to
        a legal AmigaDOS file handle. Using the standard Amiga startup
        module sets this up. In other cases you will need to define
        stdout, and assign it to some reasonable value (like what the
        dos.library/output() call returns). this code would set it up:

                ULONG stdout;
                stdout=Output();

   BUGS
        This function will crash if the resulting stream after
        parameter substitution is longer than 140 bytes.