printf

PRINTF()                                                              PRINTF()



 6 "IRIT Version 8.0"

NAME
       PRINTF



        PRINTF( StringType CtrlStr, ListType Data )

       A formatted printing routine, following the concepts of the C
       programming language's printf routine. CtrlStr is a string object for
       which the following special '%' commands are supported:

           %d, %i, %u      Prints the numeric object as an integer or unsigned
       integer.
           %o, %x, %X      Prints the numeric object as an octal or
       hexadecimal integer.
           %e, %f, %g,     Prints the numeric object in several formats of
           %E, %F          floating point numbers.
           %s              Prints the string object as a string.
           %pe, %pf, %pg   Prints the three coordinates of the point object.
           %ve, %vf, %vg   Prints the three coordinates of the vector object.
           %Pe, %Pf, %Pg,  Prints the four coordinates of the plane object.
           %De, %Df, %Dg,  Prints the given object in IRIT's data file format.


       All the '%' commands can include any modifier that is valid in the C
       programming language printf routine, including l (long), prefix
       character(s), size, etc. The point, vector, plane, and object commands
       can also be modified in a similar way, to set the format of the numeric
       data printed.

       Also supported are the newline and tab using the backslash escape
       character:

        PRINTF("\tThis is the char

       Backslashes should be escaped themselves as can be seen in the above
       example.  Here are few more examples:

        PRINTF("this is a string
              list("STRING", 1987));
        PRINTF("this is a vector [%8.5lvf]\n", list(vector(1,2,3)));
        IritState("DumpLevel", 9);
        PRINTF("this is a object %8.6lDf...\n", list(axes));
        PRINTF("this is a object %10.8lDg...\n", list(axes));

       This implementation of PRINTF is somewhat different than the C
       programming language's version, because the backslash always escapes
       the next character during the processing stage of IRIT's parser. That
       is, the string

               '\tThis is the char

       is actually parsed by the IRIT's parser into

               'This is the char ""0

       because this is the way the IRIT parser processes strings. The latter
       string is the one that PRINTF actually see.



                                                                      PRINTF()