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 #include "util.h"
  12 #include "buffer.h"
  13 #include "draw.h"
  14 #include "input.h"
  15
  16 int
  17 main(int argc, char *argv[])
  18 {
  19         int i;
  20         Buffer *buffer    = NULL;
  21         int offset        = 3;
  22         int tty_fd        = open("/dev/tty", O_RDWR);
  23         Opt *opt          = malloc(sizeof(Opt));
  24
  25         opt->line_numbers  = FALSE;
  26         opt->complete      = FALSE;
  27         opt->print_numbers = FALSE;
  28         opt->validate_key  = CONTROL('M');
  29         opt->separator     = NULL;
  30         opt->lines         = 30;
  31         opt->prompt        = "";
  32
  33         /* command line arguments */
  34         for (i = 0; i < argc; i++) {
  35                 if (argv[i][0] == '-') {
  36                         switch (argv[i][1]) {
  37                         case 'n':
  38                                 opt->line_numbers = TRUE;
  39                                 break;
  40                         case 'c':
  41                                 opt->complete = TRUE;
  42                                 break;
  43                         case 'N':
  44                                 opt->print_numbers = TRUE;
  45                                 opt->line_numbers  = TRUE;
  46                                 break;
  47                         case 'k':
  48                                 opt->validate_key = (argv[i++][0] == '^') ?
  49                                         CONTROL(argv[i][1]):
  50                                         argv[i][0];
  51                                 break;
  52                         case 's':
  53                                 opt->separator = argv[++i];
  54                                 break;
  55                         case 'l':
  56                                 if (sscanf(argv[++i], "%d", &opt->lines) <= 0)
  57                                         die("Wrong number format after -l.");
  58                                 break;
  59                         case 'p':
  60                                 opt->prompt = argv[++i];
  61                                 break;
  62                         }
  63                 }
  64         }
  65
  66         /* command line arguments */
  67         buffer = fill_buffer(opt->separator);
  68
  69         /* set the interface */
  70         filter_lines(buffer, opt);
  71         draw_screen(buffer, offset, tty_fd, opt);
  72
  73         /* listen and interact to input */
  74         input_get(buffer, offset, tty_fd, opt);
  75
  76         draw_clear(opt->lines);
  77
  78         /* close files descriptors and pointers, and free memory */
  79         close(tty_fd);
  80         free(opt);
  81
  82         return 0;
  83 }