Usermode/Applications/gui_shell_src/vt100.c

   1 /*
   2  * Acess GUI Terminal
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * main.c
   6  * - Core
   7  */
   8 #include <string.h>
   9 #include "include/vt100.h"
  10 #include "include/display.h"
  11
  12 int Term_HandleVT100(int Len, const char *Buf)
  13 {
  14         const int       max_length = 16;
  15         static char     inc_buf[max_length]
  16         static int      inc_len = 0;
  17
  18         if( inc_len > 0 || *Buf == '\x1b' )
  19         {
  20                 memcpy(inc_buf + inc_len, Buf, min(max_length - inc_len, Len));
  21                 // Handle VT100 (like) escape sequence
  22
  23                 inc_len = 0;
  24                 return 1;
  25         }
  26
  27         switch( *Buf )
  28         {
  29         case '\b':
  30                 // TODO: Backspace
  31                 return 1;
  32         case '\t':
  33                 // TODO: tab
  34                 return 1;
  35         case '\n':
  36                 Display_Newline(1);
  37                 return 1;
  38         case '\r':
  39                 // TODO: Carriage return
  40                 return ;
  41         }
  42
  43          int    ret = 0;
  44         while( ret < Len )
  45         {
  46                 if( *Buf == '\n' )
  47                         break;
  48                 if( *Buf == '\x1b' )
  49                         break;
  50                 ret ++;
  51                 Buf ++;
  52         }
  53         return -ret;
  54 }