sys/src/cmd/basename.c

   1 #include <u.h>
   2 #include <libc.h>
   3
   4 void
   5 main(int argc, char *argv[])
   6 {
   7         char *pr;
   8         int n, dflag;
   9
  10         dflag = 0;
  11         if(argc>1 && strcmp(argv[1], "-d") == 0){
  12                 --argc;
  13                 ++argv;
  14                 dflag = 1;
  15         }
  16         if(argc < 2 || argc > 3){
  17                 fprint(2, "usage: basename [-d] string [suffix]\n");
  18                 exits("usage");
  19         }
  20         pr = utfrrune(argv[1], '/');
  21         if(dflag){
  22                 if(pr){
  23                         *pr = 0;
  24                         print("%s\n", argv[1]);
  25                         exits(0);
  26                 }
  27                 print(".\n");
  28                 exits(0);
  29         }
  30         if(pr)
  31                 pr++;
  32         else
  33                 pr = argv[1];
  34         if(argc==3){
  35                 n = strlen(pr)-strlen(argv[2]);
  36                 if(n >= 0 && !strcmp(pr+n, argv[2]))
  37                         pr[n] = 0;
  38         }
  39         print("%s\n", pr);
  40         exits(0);
  41 }