This post originated from an RSS feed registered with Ruby Buzz by Daniel Berger. Original Post: Beating a dead basename(horse); Feed Title: Testing 1,2,3... Feed URL: http://djberg96.livejournal.com/data/rss Feed Description: A blog on Ruby and other stuff. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Daniel Berger Latest Posts From Testing 1,2,3...

char* basename(char* str){
   int i = 0;
   char sep = '/';
   char* ptr = malloc(sizeof(str));

   /* Return string as-is if no separator is found */
   if(!strchr(str, sep))
      return str;

   strcpy(ptr, str);

   /* Get the count of trailing separators, if any */
   while(str[strlen(str)-(i+1)] == sep){ ++i; }

   /* Trim trailing separators */
   if(i){
      ptr[strlen(str)-i] = '\0';
      if(!strlen(ptr))
         strcpy(ptr, "/"); /* The base of root is root */
   }

   /* Get portion of string after last '/' character */
   if( (strchr(ptr, sep)) && (strlen(ptr) > 1) )
      ptr = (strrchr(ptr, sep) + 1);

   return ptr;
}

basename("foo")         # foo
basename("/foo")        # foo
basename("/foo/bar")    # bar
basename("/foo/bar.rb") # bar.rb

# Edge cases
basename("")        # ""
basename("/")       # /
basename("//")      # /
basename("/foo/")   # foo
basename('//foo//") # foo