#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[]) {
  if (argc != 2) {
    fprintf(stderr, "Usage: %s [file.c]\n", argv[0]);
    return 1;
  }

  FILE *file = fopen(argv[1], "r");
  if (!file) {
    fprintf(stderr, "Error: cannot open file\n");
    return 1;
  }

  char line[BUFSIZ];
  int sloc = 0, multi = 0;

  while (fgets(line, sizeof line, file)) {
    char *p = line;
    int has_code = 0;

    while (*p) {
      if (multi) {
        if (p[0] == '*' && p[1] == '/') {
          multi = 0;
          p += 2;
          continue;
        }
      } else {
        if (p[0] == '/' && p[1] == '*') {
          multi = 1;
          p += 2;
          continue;
        }
        if (p[0] == '/' && p[1] == '/')
          break;
        if (!strchr(" \t\n\r", *p))
          has_code = 1;
      }
      p++;
    }

    if (has_code && !multi)
      sloc++;
  }

  fclose(file);
  printf("SLOC Count: %d\n", sloc);
  return 0;
}