Replace a marker with a double precision number. 

   None. 

   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   in         I   Input string. 
   marker     I   Marker to be replaced. 
   value      I   Replacement value.
   sigdig     I   Significant digits in replacement text.
   lenout     I   Available space in output string.
   out        O   Output string. 
   MAXLDP     P   Maximum length of a d.p. number. 

   in             is an arbitrary character string. 

   marker         is an arbitrary character string. The first occurrence 
                  of marker in the input string is to be replaced by value. 

                  Leading and trailing blanks in marker are NOT significant. 
                  In particular, no substitution is performed if marker 
                  is blank. 

   value          is an arbitrary double precision number.

   sigdig         is the number of significant digits with which value
                  is to be represented. sigdig must be greater than
                  zero and less than 15.

   lenout         is the allowed length of the output string.  This length
                  must large enough to hold the output string plus the
                  terminator.  If the output string is expected to have x
                  characters, lenout should be at least x + 1.

   out            is the string obtained by substituting the text 
                  representation of value for the first occurrence 
                  of marker in the input string. 

                  The text representation of value is in scientific
                  notation, having the number of significant digits
                  specified by sigdig. The representation of value is
                  produced by the routine dpstr_; see that routine for
                  details concerning the representation of double
                  precision numbers.

                  out and in must be identical or disjoint. 

   MAXLDP         is the maximum expected length of the text
                  representation of a double precision number.
                  23 characters are sufficient to hold any result
                  returned by dpstr_. (See Restrictions.)

                  This routine assumes that the input d.p. value
                  is such that its string representation contains
                  no more than MAXLDP characters.

   This is one of a family of related routines for inserting values 
   into strings. They are typically to construct messages that 
   are partly fixed, and partly determined at run time. For example, 
   a message like 

      "Fifty-one pictures were found in directory [USER.DATA]." 

   might be constructed from the fixed string 

      "#1 pictures were found in directory #2." 

   by the calls 

      #include "SpiceUsr.h"
           .
           .
           .
      #define   LENOUT                  81
           .
           .
           .
      repmct_c ( string, "#1",  51,  'c',      LENOUT, string );
      repmc_c  ( string, "#2", "[USER.DATA]",  LENOUT, string );


   which substitute the cardinal text "Fifty-one" and the character 
   string "[USER.DATA]" for the markers "#1" and "#2" respectively. 

   The complete list of routines is shown below. 

      repmc_c  ( Replace marker with character string value ) 
      repmd_c  ( Replace marker with double precision value ) 
      repmf_c  ( Replace marker with formatted d.p. value   ) 
      repmi_c  ( Replace marker with integer value          ) 
      repmct_c ( Replace marker with cardinal text          ) 
      repmot_c ( Replace marker with ordinal text           ) 

   1. Let 

         in == "Invalid duration value.  The value was <duration>." 

      Then following the call, 

         #include "SpiceUsr.h"
              .
              .
              .
         #define   LENOUT                  201
              .
              .
              .
         repmd_c ( in, "<duration>", 5e11, 1, LENOUT, outstr );


      outstr contains the string: 

         "Invalid duration value.  The value was 5.0e11." 



   2. Let 

         #include "SpiceUsr.h"
              .
              .
              .
         #define   LENOUT                  201
              .
              .
              .
         in ==  "Left endpoint exceeded right endpoint.  "
                "The left endpoint was:  XX.  The right "
                "endpoint was:  XX." 

      Then following the call, 

         repmd_c ( in, "  XX  ", -5.2e-9, 3, LENOUT, out );

      out is 

         "Left endpoint exceeded right endpoint.  The left "
         "endpoint was:  -5.20E-09.  The right endpoint was:  XX." 


   3. Let 

         num    == 23 
         chance == "fair" 
         score  == 4.665 

      Then following the sequence of calls, 

         #include "SpiceUsr.h"
              .
              .
              .
         #define   LENOUT                  201
              .
              .
              .
         repmi_c ( "There are & routines that have a "  
                   "& chance of meeting your needs."    
                   "The maximum score was &.", 
                   "&",
                    num, 
                    LENOUT,
                    msg                              ); 

         repmc_c ( msg, marker, chance,    LENOUT, msg );

         repmd_c ( msg, marker, score,  4, LENOUT, msg ); 


      msg is 

         "There are 23 routines that have a fair chance of "
         "meeting your needs.  The maximum score was 4.665E+00." 

   1) The maximum number of significant digits returned is 14.

   2) This routine makes explicit use of the format of the string
      returned by dpstr_; should that routine change, substantial
      work may be required to bring this routine back up to snuff.

   1) The error SPICE(NULLPOINTER) is signaled if any of 
      the input or output string pointers is null.

   2) If the marker string is blank or empty, this routine leaves 
      the input string unchanged, except that trailing blanks
      will be trimmed.  This case is not considered an error.

   3) If the output string is too short to accommodate a terminating
      null character, the error SPICE(STRINGTOOSHORT) is signaled.

   4) If out does not have sufficient length to accommodate the 
      result of the substitution, the result will be truncated on 
      the right. 

   None. 

   N.J. Bachman   (JPL) 
   I.M. Underwood (JPL) 

   None. 

   -CSPICE Version 1.0.0, 14-AUG-2002 (NJB) (IMU)

   replace marker with d.p. number