Index Page matchw_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

       SpiceBoolean matchw_c ( ConstSpiceChar      * string,
                               ConstSpiceChar      * templ,
                               SpiceChar             wstr,
                               SpiceChar             wchr   )

#### Abstract

        Determine whether a string is matched by a template containing
        wild cards.

#### Required_Reading

        None.

#### Keywords

        CHARACTER,  COMPARE

#### Brief_I/O

        VARIABLE  I/O  DESCRIPTION
        --------  ---  --------------------------------------------------
        string     I   String to be tested.
        templ      I   Template (with wild cards) to test against string.
        wstr       I   Wild string token.
        wchr       I   Wild character token.

        The function returns the value SPICETRUE if string matches templ,
        SPICEFALSE if not.

#### Detailed_Input

        string      is the input character string to be tested for
                    a match against the input template. Leading and
                    trailing blanks are ignored.

        templ       is the input template to be tested for a match
                    against the input string. TEMPL may contain wild
                    cards. Leading and trailing blanks are ignored.

        wstr        is the wild string token used in the input template.
                    The wild string token may represent from zero to
                    any number of characters.

        wchr        is the wild character token used in the input
                    template. The wild character token represents
                    exactly one character.

#### Detailed_Output

        The function returns SPICETRUE when the input string matches the
        input template, and SPICEFALSE otherwise. The string and template
        match whenever the template can expand (through replacement of its
        wild cards) to become the input string.

#### Parameters

       None.

#### Exceptions

       1) If either the input string pointer is null, the error
          SPICE(NULLPOINTER) will be signaled.  The function will
          return SPICEFALSE.

       2) If either input string has length zero, the error
          SPICE(EMPTYSTRING) will be signaled.  The function will
          return SPICEFALSE.

#### Files

        None.

#### Particulars

       matchw_c ignores leading and trailing blanks in both the string
       and the template. All of the following are equivalent:  they
       all return SPICETRUE.

          #include "SpiceUsr.h"
                .
                .
                .
          matchw_c ( "ALCATRAZ",       "A*Z",      '*', '%' );
          matchw_c ( "  ALCATRAZ  ",   "a*z",      '*', '%' );
          matchw_c ( "alcatraz",       "  A*Z  ",  '*', '%' );
          matchw_c ( "  ALCATRAZ  ",   "  A*Z  ",  '*', '%' );

       matchw_c is case-sensitive:  uppercase characters do not match
       lowercase characters, and vice versa.  Wild characters match
       characters of both cases.

#### Examples

       Let
             string  = "  ABCDEFGHIJKLMNOPQRSTUVWXYZ  "
             wstr    = '*'
             wchr    = '%'

       Then
             if TEMPL is  "*A*"        matchw_c is SPICETRUE
                          "A%D*"                     SPICEFALSE
                          "A%C*"                   SPICETRUE
                          "%A*"                      SPICEFALSE
                          "%%CD*Z"                 SPICETRUE
                          "%%CD"                     SPICEFALSE
                          "A*MN*Y*Z"               SPICETRUE
                          "A*MN*Y*%Z"                SPICEFALSE
                          "*BCD*Z*"                SPICETRUE
                          "*bcd*z*"                  SPICEFALSE
                          " *BCD*Z*  "             SPICETRUE

#### Restrictions

       None.

#### Literature_References

        None.

#### Author_and_Institution

        N.J. Bachman    (JPL)
        W.L. Taber      (JPL)
        I.M. Underwood  (JPL)

#### Version

       -CSPICE Version 1.0.0, 17-AUG-1999 (NJB) (WLT) (IMU)

#### Index_Entries

       match string against wildcard template
       test whether a string matches a wildcard template

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

    Wed Apr  5 17:54:39 2017