Index Page repmd_c

A B C D E F G H I J K L M N O P Q R S T U V W X

Procedure Abstract Required_Reading Keywords Brief_I/O Detailed_Input | Detailed_Output Parameters Exceptions Files Particulars Examples | Restrictions Literature_References Author_and_Institution Version Index_Entries

#### Procedure

       void repmd_c ( ConstSpiceChar     * in,
                      ConstSpiceChar     * marker,
                      SpiceDouble          value,
                      SpiceInt             sigdig,
                      SpiceInt             lenout,
                      SpiceChar          * out     )

#### Abstract

       Replace a marker with a double precision number.

#### Required_Reading

       None.

#### Keywords

       CHARACTER
       CONVERSION
       STRING

#### Brief_I/O

       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.

#### Detailed_Input

       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.

#### Detailed_Output

       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.

#### Parameters

       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.

#### Exceptions

       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.

#### Files

       None.

#### Particulars

       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           )

#### Examples

       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."

#### Restrictions

       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.

#### Literature_References

       None.

#### Author_and_Institution

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

#### Version

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

#### Index_Entries

       replace marker with d.p. number

#### Link to routine repmd_c source file repmd_c.c

    Wed Apr  5 17:54:41 2017