void sj_prompt_init(struct v7 *v7) {
memset(&s_sjp, 0, sizeof(s_sjp));
/* TODO(alashkin): load cfg from flash */
s_sjp.v7 = v7;
retarget_putc('\n');
show_prompt();
}
static void process_prompt_char(char ch) {
if (s_sjp.swallow > 0) {
s_sjp.swallow--;
s_sjp.pos--;
return;
}
switch (ch) {
/*
* swallow cursor movement escape sequences (and other 3 byte sequences)
* they are fairly common in random user input and some serial terminals
* will just move the cursor around if echoed, confusing users.
*/
case 0x1b:
s_sjp.swallow = 2;
break;
case 0x7f:
case 0x08:
s_sjp.pos--; /* Swallow BS itself. */
if (s_sjp.pos > 0) {
s_sjp.pos--;
/* \b only moves the cursor left, let's also clear the char */
retarget_puts("\b \b");
}
s_sjp.buf[s_sjp.pos] = '\0';
break;
case '\n':
#ifndef SJ_PROMPT_DISABLE_ECHO
retarget_putc('\n');
#endif
s_sjp.pos--;
s_sjp.buf[s_sjp.pos] = '\0';
process_command(s_sjp.buf);
s_sjp.pos = 0;
break;
case '\r':
break;
default:
#ifndef SJ_PROMPT_DISABLE_ECHO
retarget_putc(ch); /* echo */
#endif
break;
}
}
static void process_here_char(char ch) {
retarget_putc(ch);
if ((s_sjp.pos >= 7 &&
strncmp(&s_sjp.buf[s_sjp.pos - 7], "\r\nEOF\r\n", 7) == 0) ||
(s_sjp.pos >= 5 &&
(strncmp(&s_sjp.buf[s_sjp.pos - 5], "\nEOF\n", 5) == 0 ||
strncmp(&s_sjp.buf[s_sjp.pos - 5], "\rEOF\r", 5) == 0))) {
int end_pos = s_sjp.pos - (s_sjp.buf[s_sjp.pos - 2] == '\r' ? 7 : 5);
s_sjp.buf[end_pos] = '\0';
retarget_putc('\n');
process_js(s_sjp.buf);
show_prompt();
} else {
if (s_sjp.pos >= RX_BUFSIZE) {
retarget_puts("Input too long\n");
show_prompt();
}
}
}
extern int _write(int file, char* ptr, int len)
{
if(file < 3) {
int i;
for(i = 0; i < len; i++) {
retarget_putc(*ptr);
ptr++;
}
return len;
} else {
VMUINT written_bytes;
vm_fs_write(file, ptr, len, &written_bytes);
LOG("_write(%d, %s, %d, %d)\n", file, ptr, len, written_bytes);
return written_bytes;
}
}
extern int _write( int file, char *ptr, int len )
{
if (file < 3) {
int i;
for (i = 0; i < len; i++) {
retarget_putc(*ptr);
ptr++;
}
return len ;
} else {
VMUINT written_bytes;
vm_file_write(file, ptr, len, &written_bytes);
// printf("_write() - file: %d, content: %s, len: %d, written: %d\n", file, ptr, len, written_bytes);
return written_bytes;
}
}
