Load the variables contained in a NAIF ASCII kernel file into the 
   kernel pool. 

   kernel 

   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   filename   I   Name of the kernel file. 

   filename   is the name of the kernel file whose variables will be 
              loaded into the pool. 

   None. 

   None. 

   Text kernels input to this routine need not have native line
   terminators for the platform. Lower level CSPICE routines can
   read and process non-native text files. This functionality does
   not exist in the Fortran SPICELIB.

   Only text kernel readers include the non-native read capability,
   (ldpool_c and furnsh_c), the generic text file line reader, rdtext_c
   requires native text files.

   Please refer to kernel.req for additiional information.

   The following code fragment demonstrates how the data from 
   several kernel files can be loaded into a kernel pool. After the 
   pool is loaded, the values in the pool are written to a kernel 
   file. 

      /.
      Store in an array the names of the kernel files whose 
      values will be loaded into the kernel pool. 
      ./
      kernel [0] = "AXES.KER"; 
      kernel [1] = "GM.KER";
      kernel [2] = "LEAP_SECONDS.KER";

      /.
      Clear the kernel pool. (This is optional.) 
      ./
      clpool_c();

      /.
      Load the variables from the three kernel files into the 
      the kernel pool. 
      ./
      for ( i = 0; i < 3; i++ )
         {
         ldpool_c ( kernel [i] );
         } 

   None. 

   1) The error SPICE(EMPTYSTRING) is signalled if the input
      string does not contain at least one character, since the
      input string cannot be converted to a Fortran-style string
      in this case.

   2) The error SPICE(NULLPOINTER) is signalled if the input string
      pointer is null.

   The NAIF ASCII kernel file kernel is opened by rdknew_. 

   R.E. Thurman    (JPL) 
   I.M. Underwood  (JPL) 
   W.L. Taber      (JPL) 
   E.D. Wright     (JPL)

   kernel.req 

   -CSPICE 2.0.1 17-OCT-2005 (EDW)

      Added text to Particulars section informing of the
      non-native kernel text file reading capability.

   -CSPICE Version 2.0.0, 08-FEB-1998 (NJB)

      Input argument kernel was changed to type ConstSpiceChar * and
      was given the new name "filename."

      Re-implemented routine without dynamically allocated, temporary 
      strings.  Made several corrections to the code example.  Renamed
      the argument "filename" to "kernel" for consistency with the
      header comments.

   -CSPICE Version 1.0.0, 25-OCT-1997  (EDW) 

   LOAD variables from a text kernel file into the pool