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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

 
GeneralRe: My C# contribution - recursive, of course! Pin
Erwin de GRoot at 29-Mar-10 2:58
memberErwin de GRoot29-Mar-10 2:58 
GeneralDepends on whether you need to optimize the last few nanoseconds out of it... Pin
RenniePet at 29-Mar-10 8:45
memberRenniePet29-Mar-10 8:45 
GeneralSorry - revised numbers Pin
RenniePet at 29-Mar-10 9:35
memberRenniePet29-Mar-10 9:35 
GeneralRe: Depends on whether you need to optimize the last few nanoseconds out of it... Pin
Erwin de GRoot at 29-Mar-10 9:37
memberErwin de GRoot29-Mar-10 9:37 
GeneralYet another version - 25% faster, I think [modified] Pin
RenniePet at 1-Apr-10 9:24
memberRenniePet1-Apr-10 9:24 
GeneralRe: Yet another version - 25% faster, I think Pin
aleks1k at 21-Sep-11 3:47
memberaleks1k21-Sep-11 3:47 
QuestionI used this function but I how I can catch variables from the * ??? Pin
moh.hijjawi at 20-Oct-09 2:55
membermoh.hijjawi20-Oct-09 2:55 
AnswerRe: I used this function but I how I can catch variables from the * ??? Pin
RenniePet at 1-Apr-10 12:27
memberRenniePet1-Apr-10 12:27 
Questionany updates ? Pin
alhambra-eidos at 2-Jul-09 6:12
memberalhambra-eidos2-Jul-09 6:12 
GeneralImproved matching with end-of-text Pin
Anders Heie at 11-May-09 16:20
memberAnders Heie11-May-09 16:20 
GeneralRe: Improved matching with end-of-text: some cases don't work properly! Pin
roadrunner314 at 12-Aug-09 4:35
memberroadrunner31412-Aug-09 4:35 
GeneralRe: Improved matching with end-of-text: some cases don't work properly! Pin
sdiazdiaz at 20-Jun-13 2:50
membersdiazdiaz20-Jun-13 2:50 
QuestionPathMatchSpec instead? Pin
kintz at 25-Mar-09 9:55
memberkintz25-Mar-09 9:55 
AnswerRe: PathMatchSpec instead? Pin
MandatoryDefault at 31-Aug-09 11:39
memberMandatoryDefault31-Aug-09 11:39 
Questionwchar_t version? Pin
rmorales87 at 29-Nov-08 21:16
memberrmorales8729-Nov-08 21:16 
AnswerRe: wchar_t version? Pin
razvar at 31-Mar-11 22:49
memberrazvar31-Mar-11 22:49 
Generalwildcmp in XBLite Pin
CodeGibbon at 27-Nov-08 14:56
memberCodeGibbon27-Nov-08 14:56 
GeneralWildcard string compare in C# Pin
haiquang at 10-Nov-08 23:15
memberhaiquang10-Nov-08 23:15 
GeneralRe: Wildcard string compare in C# Pin
haiquang at 3-Aug-09 23:22
memberhaiquang3-Aug-09 23:22 
GeneralC# Direct Port Pin
hempels at 23-Sep-08 16:10
memberhempels23-Sep-08 16:10 
General...and yet another C# port [modified] Pin
DVF at 27-Aug-10 17:59
memberDVF27-Aug-10 17:59 
GeneralRe: ...and yet another C# port Pin
VUnreal at 21-Sep-10 12:22
memberVUnreal21-Sep-10 12:22 
General[Message Removed] Pin
stonber at 18-Sep-08 15:22
memberstonber18-Sep-08 15:22 
GeneralUsing in Artistic Style Pin
jimp02 at 3-Apr-08 5:43
memberjimp023-Apr-08 5:43 
GeneralGeez... Pin
larryfr at 5-Mar-08 10:39
memberlarryfr5-Mar-08 10:39 

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