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Wildcard string compare (globbing)

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4.90 (79 votes)
15 Feb 2005
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: too complicated Pin
Targys8-Jan-03 1:57
memberTargys8-Jan-03 1:57 
GeneralRe: too complicated Pin
The C++ Guru24-Feb-03 10:43
sussThe C++ Guru24-Feb-03 10:43 
GeneralRe: too complicated Pin
Jack Handy24-Feb-03 16:52
memberJack Handy24-Feb-03 16:52 
GeneralRe: too complicated Pin
hector santos1-Mar-03 1:49
memberhector santos1-Mar-03 1:49 
GeneralRe: too complicated Pin
Kent C. Dorner2-Mar-03 5:26
sussKent C. Dorner2-Mar-03 5:26 
GeneralRe: too complicated Pin
hector santos2-Mar-03 10:05
memberhector santos2-Mar-03 10:05 
GeneralRe: too complicated Pin
Jack Handy2-Jun-03 13:56
memberJack Handy2-Jun-03 13:56 
GeneralRe: too complicated Pin
Anonymous2-Jun-03 14:48
memberAnonymous2-Jun-03 14:48 
ok, for all you f***ing managed c++ bozo's out there, listen up. I challenge ANY of you to jump into stl and say its readable. No wonder IBM Billing is such a POS if they would rather have "easier" readability in code then performance.

Oh yeah, c++ guru, some f***ing guru, ever hear of inline you f***ing putz ?

I googled this wildcmp function, and bar none its the best damn wild compare I have seen yet. I can't believe some of the nonsense that is being posted here as an attempt to discredit the author for some reason unbeknownst to me.

and finally, for you babies who can't stand to manage their own pointers (et al managed c++ bozos)

if ( ( !string ) || ( !wild ) )
return( 0 );


GeneralRe: too complicated Pin
Anonymous4-Dec-03 18:29
memberAnonymous4-Dec-03 18:29 
GeneralRe: too complicated Pin
olegxxx4-Mar-05 19:24
memberolegxxx4-Mar-05 19:24 
GeneralSweet! Pin
EpicBoy1-Feb-02 16:08
memberEpicBoy1-Feb-02 16:08 
GeneralRe: Sweet! Pin
Michael Dunn1-Feb-02 17:10
sitebuilderMichael Dunn1-Feb-02 17:10 
GeneralRe: Sweet! Pin
13-May-02 0:29
suss13-May-02 0:29 
GeneralI found this very useful. Pin
Todd Smith4-Jan-02 14:40
memberTodd Smith4-Jan-02 14:40 
GeneralTest Cases Pin
Paul McGuire4-Dec-01 12:00
memberPaul McGuire4-Dec-01 12:00 
GeneralRe: Test Cases Pin
Lee Elenbaas9-Sep-08 23:05
memberLee Elenbaas9-Sep-08 23:05 
GeneralSuper fast code - super, but... Pin
23-Aug-01 6:24
suss23-Aug-01 6:24 
GeneralGreat Code Pin
4-Jul-01 20:18
suss4-Jul-01 20:18 
GeneralRe: Great Code Pin
5-Jul-01 10:24
suss5-Jul-01 10:24 
GeneralRe: Great Code Pin
4-Jul-02 2:15
suss4-Jul-02 2:15 
GeneralRe: Great Code Pin
The C++ Guru8-Sep-02 7:22
sussThe C++ Guru8-Sep-02 7:22 
GeneralRe: Great Code Pin
Anonymous4-Dec-03 18:53
memberAnonymous4-Dec-03 18:53 
Generalwildcmp("fold","??*"); Pin
24-May-01 8:43
suss24-May-01 8:43 
GeneralRe: wildcmp( Pin
Jack Handy29-May-01 10:01
memberJack Handy29-May-01 10:01 
GeneralNot DOS compatible Pin
Miroslav Rajcic2-May-01 3:56
memberMiroslav Rajcic2-May-01 3:56 

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Article
Posted 1 May 2001

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