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Wildcard string compare (globbing)

, 15 Feb 2005
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Matches a string against a wildcard string such as "*.*" or "bl?h.*" etc. This is good for file globbing or to match hostmasks.

Usage:

This is a fast, lightweight, and simple pattern matching function.

if (wildcmp("bl?h.*", "blah.jpg")) {
  //we have a match!
} else {
  //no match =(
}

Function:

int wildcmp(const char *wild, const char *string) {
  // Written by Jack Handy - <A href="mailto:jakkhandy@hotmail.com">jakkhandy@hotmail.com</A>
  const char *cp = NULL, *mp = NULL;

  while ((*string) && (*wild != '*')) {
    if ((*wild != *string) && (*wild != '?')) {
      return 0;
    }
    wild++;
    string++;
  }

  while (*string) {
    if (*wild == '*') {
      if (!*++wild) {
        return 1;
      }
      mp = wild;
      cp = string+1;
    } else if ((*wild == *string) || (*wild == '?')) {
      wild++;
      string++;
    } else {
      wild = mp;
      string = cp++;
    }
  }

  while (*wild == '*') {
    wild++;
  }
  return !*wild;
}

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Jack Handy
Web Developer
United States United States
No Biography provided

Comments and Discussions

 
AnswerRe: PathMatchSpec instead? PinmemberMandatoryDefault31-Aug-09 10:39 
Questionwchar_t version? Pinmemberrmorales8729-Nov-08 20:16 
AnswerRe: wchar_t version? Pinmemberrazvar31-Mar-11 21:49 
Generalwildcmp in XBLite PinmemberCodeGibbon27-Nov-08 13:56 
This is the version of the wildcmp function in XBLite programming language:
 
FUNCTION SBYTE wildcmp( wildcard$, search$)
  ' wildcmp(const char *wild, const char *string)
  ' Written by Jack Handy - jakkhandy@hotmail.com
 
  ULONG cp
  ULONG mp
  
  STRING s_txt$
  ULONG  sp 
  
  STRING w_txt$
  ULONG  wp
 
  IFZ search$   THEN RETURN $$FALSE  
  IFZ wildcard$ THEN RETURN $$FALSE
  
  w_txt$ = wildcard$ + "\0\0"   ' Just to be sure
  s_txt$ = search$   + "\0\0"
  
  DO WHILE (s_txt${sp}) && (w_txt${wp} != '*') 
    IF (w_txt${wp} != s_txt${sp} )  && (w_txt${wp} != '?') THEN RETURN $$FALSE
    
    INC wp
    INC sp
  LOOP
    
  DO WHILE (s_txt${sp})
    IF ( w_txt${wp} == '*' ) THEN    
      INC wp
      IF !(w_txt${wp}) THEN RETURN $$TRUE      
      
      mp = wp     
      cp = sp + 1 
    ELSE 
      IF (w_txt${wp} == s_txt${sp} )  || (w_txt${wp} == '?') THEN    
        INC wp
        INC sp
      ELSE
        wp = mp
      
        sp = cp                   
        IF s_txt${sp} THEN INC cp 
       
      ENDIF
    ENDIF  
  LOOP
    
  DO WHILE (w_txt${wp} == '*' )    
    INC wp
  LOOP
  
  RETURN !w_txt${wp} 
 
END FUNCTION
 

GeneralWildcard string compare in C# Pinmemberhaiquang10-Nov-08 22:15 
GeneralRe: Wildcard string compare in C# Pinmemberhaiquang3-Aug-09 22:22 
GeneralC# Direct Port Pinmemberhempels23-Sep-08 15:10 
General...and yet another C# port [modified] PinmemberDVF27-Aug-10 16:59 
GeneralRe: ...and yet another C# port PinmemberVUnreal21-Sep-10 11:22 
General[Message Removed] Pinmemberstonber18-Sep-08 14:22 
GeneralUsing in Artistic Style Pinmemberjimp023-Apr-08 4:43 
GeneralGeez... Pinmemberlarryfr5-Mar-08 9:39 
QuestionConvert to a replace? Pinmemberwilliaps20-Mar-07 8:31 
GeneralC# RexExp version Pinmemberspinsane4-Nov-06 6:30 
GeneralKudos Pinmemberquantumred14-Oct-06 4:37 
GeneralRe: Kudos Pinmembermilkplus24-Feb-10 11:19 
Generalwildcmp(&quot;*&amp;lt;*&amp;gt;&quot;, &quot;&amp;lt;field1&amp;gt;&amp;lt;field2&amp;gt;&quot;) not working [modified] PinmemberDaniel B.6-Sep-06 13:14 
GeneralRe: wildcmp(&quot;*&amp;lt;*&amp;gt;&quot;, &quot;&amp;lt;field1&amp;gt;&amp;lt;field2&amp;gt;&quot;) not working Pinmemberradboudp16-Feb-07 0:35 
Generalreturn value type Pinmemberwdx048-Jan-06 15:49 
General*? case match Pinmembertalimu3-Nov-05 23:42 
GeneralRe: *? case match Pinmemberkuhnm15-Sep-06 2:18 
GeneralRe: *? case match Pinmemberkuhnm18-Sep-06 4:48 
GeneralGets my 5 PinmemberFranc Morales18-Oct-05 17:05 
Generalmp and cp Pinmembertwopieman15-Mar-05 11:59 
GeneralRe: mp and cp Pinmemberradboudp16-Feb-07 1:14 

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