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Text File  |  1996-08-05  |  2.3 KB  |  80 lines
  1. Path: news.lpr.carel.fi!usenet
  2. From: Ari Lukumies <aril@cmt.lpr.mail.carel.fi>
  3. Newsgroups: comp.lang.c
  4. Subject: Re: Want function of strmp with wild characters
  5. Date: Wed, 31 Jan 1996 16:04:03 +0200
  6. Organization: Carelcomp Forest
  7. Message-ID: <310F76D3.2924@cmt.lpr.mail.carel.fi>
  8. References: <1996Jan30.213213.16764@schbbs.mot.com>
  9. NNTP-Posting-Host: renoir.cclahti.carel.fi
  10. Mime-Version: 1.0
  11. Content-Type: text/plain; charset=us-ascii
  12. Content-Transfer-Encoding: 7bit
  13. X-Mailer: Mozilla 2.0b6a (WinNT; I)
  14.  
  15. Ashok Patil wrote:
  16. > 
  17. > HI:
  18. > I need a function that compares two strings with
  19. > wild cards. like one string is "Hello" and another is
  20. > is "Helo*". The comparison of these two should return
  21. > 0. And if it works for ? that would be great.
  22. > 
  23. > If you have a function, please mail it to
  24. > Ashokman@aol.com
  25. > 
  26. > Thanks a lot
  27. > 
  28. > Ashok
  29.  
  30. You're welcome.
  31. int     WildCmp(const char *s1, const char *s2)
  32. {
  33.         while (*s1) {
  34.                 switch (*s1) {
  35.                         case '?':
  36.                                 break;
  37.                         case '*': {
  38.                                 char    tmp = *s2;
  39.  
  40.                                 s1++;
  41.                                 while (*s2 && *s2 != *s1)
  42.                                         s2++;
  43.                                 if (*s2 != *s1)
  44.                                         return (*s1 < tmp) ? -1 : 1;
  45.                                 }
  46.                                 if (!*s1)
  47.                                         return 0;
  48.                                 break;
  49.                         default:
  50.                                 if (*s1 < *s2)
  51.                                         return -1;
  52.                                 if (*s1 > *s2)
  53.                                         return 1;
  54.                 }
  55.                 if (!*s1 && *s2)
  56.                         return -1;
  57.                 if (*s1 && !*s2)
  58.                         return 1;
  59.                 s1++;
  60.                 s2++;
  61.         }
  62.         return (!*s1 && *s2) ? -1 : (*s1 && !*s2) ? 1 : 0;
  63. }
  64.  
  65. #ifdef  TEST
  66. #include        <stdio.h>
  67. #include        <assert.h>
  68. int     main(int argc, char **argv)
  69. {
  70.         assert(argc == 3);
  71.         printf("Str match: %d\n", WildCmp(argv[1], argv[2]));
  72.     return 0;
  73. }
  74. #endif
  75.  
  76. Later,
  77. AriL
  78. -- 
  79. All my opinions are mine and mine alone.
  80.