coments

  1 #include<stdio.h>
  2 #include<stdlib.h>
  3
  4 int main(int argc, char *argv[])
  5 {
  6         FILE *fp;
  7
  8         int c;
  9         size_t chars = 0;
 10         size_t multi = 0;
 11         size_t single = 0;
 12         size_t total = 0;
 13
 14         enum states{TEXT,
 15                     SLASH,
 16                     STAR,
 17                     SINGLE,
 18                     MULTI,
 19         } state = TEXT;
 20
 21         if(argc < 2 ) {
 22                 fprintf(stderr,"USAGE: %s <filename>\n", argv[0]);
 23                 exit(0);
 24         }
 25         fp = fopen(argv[1], "r");
 26         if(!fp) {
 27                 frpintf(stderr,"Cannot open the file %s\n", argv[1] );
 28                 exit(0);
 29         }
 30
 31         while( (c = fgetc(fp)) !=EOF) {
 32                 chars++
 33                 switch(state) {
 34                         case TEXT :
 35                                 switch(c) {
 36                                         case '/' : state = SLASH; break;
 37                                         case '\n': total++;
 38                                         default : break;
 39                                 }
 40                                 break;
 41                         case SLASH :
 42                                 switch(c) {
 43                                         case '/' : state = SINGLE; break;
 44                                         case '*' : state = MULTI; break;
 45                                         case '\n':
 46                                 }
 47                 }
 48         }
 49 }
~