main.c

   1 #include <ctype.h>
   2 #include <fcntl.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <sys/ioctl.h>
   7 #include <termios.h>
   8 #include <unistd.h>
   9
  10 #include "main.h"
  11
  12
  13 int
  14 main(int argc, char *argv[])
  15 {
  16         int i;
  17         Buffer *buffer    = NULL;
  18         int tty_fd        = open("/dev/tty", O_RDWR);
  19         Opt *opt          = malloc(sizeof(Opt));
  20
  21         opt->line_numbers  = FALSE;
  22         opt->complete      = FALSE;
  23         opt->print_numbers = FALSE;
  24         opt->validate_key  = CONTROL('M');
  25         opt->separator     = NULL;
  26         opt->lines         = 30;
  27         opt->prompt        = "";
  28
  29         /* command line arguments */
  30         for (i = 0; i < argc; i++) {
  31                 if (argv[i][0] == '-') {
  32                         switch (argv[i][1]) {
  33                         case 'n':
  34                                 opt->line_numbers = TRUE;
  35                                 break;
  36                         case 'c':
  37                                 opt->complete = TRUE;
  38                                 break;
  39                         case 'N':
  40                                 opt->print_numbers = TRUE;
  41                                 opt->line_numbers  = TRUE;
  42                                 break;
  43                         case 'k':
  44                                 opt->validate_key = (argv[i++][0] == '^') ?
  45                                         CONTROL(argv[i][1]):
  46                                         argv[i][0];
  47                                 break;
  48                         case 's':
  49                                 opt->separator = argv[++i];
  50                                 break;
  51                         case 'l':
  52                                 if (sscanf(argv[++i], "%d", &opt->lines) <= 0)
  53                                         die("Wrong number format after -l.");
  54                                 break;
  55                         case 'p':
  56                                 opt->prompt = argv[++i];
  57                                 break;
  58                         }
  59                 }
  60         }
  61
  62         /* command line arguments */
  63         buffer = fill_buffer(opt->separator);
  64
  65         /* set the interface */
  66         filter_lines(buffer, opt);
  67         draw_screen(buffer, tty_fd, opt);
  68
  69         /* listen and interact to input */
  70         input_get(buffer, tty_fd, opt);
  71
  72         draw_clear(opt->lines);
  73
  74         /* close files descriptors and pointers, and free memory */
  75         close(tty_fd);
  76         free(opt);
  77         free_buffer(buffer);
  78
  79         return 0;
  80 }