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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

About the Author

Jack Handy
Web Developer
United States United States
No Biography provided

Comments and Discussions

 
QuestionMy vote of 5+ PinmemberSanmayce29-Nov-13 7:47 
GeneralMy vote of 5 PinmemberFranc Morales29-May-13 15:47 
Questionhelp required for wilcard matching * and # PinmemberSaimaAsif23-Feb-12 23:56 
GeneralMy vote of 5 PinmemberPlamen Petrov13-Dec-11 21:37 
SuggestionModification with '#' as wildcard joker for digits [modified] PinmemberThomas Haase25-Sep-11 23:16 
QuestionLicence Question Pinmemberrandommark23-Nov-10 0:33 
AnswerAnother C# version, with a twist Pinmembertomlev29-Jun-10 14:50 
GeneralObscurity PinmemberChuck O'Toole25-Apr-10 18:18 
AnswerMy C# contribution - recursive, of course! PinmemberRenniePet26-Mar-10 5:21 
GeneralRe: My C# contribution - recursive, of course! PinmemberErwin de GRoot29-Mar-10 1:58 

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