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posix main shell: do not update the prompt for unprintable chars (#8704)

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This commit is contained in:
Beat Küng 2018-01-17 05:45:28 +01:00 committed by Daniel Agar
parent 0e65753568
commit 094fa92de0
1 changed files with 17 additions and 12 deletions
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29
src/platforms/posix/main.cpp
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@ -502,7 +502,6 @@ int main(int argc, char **argv)
if (!daemon_mode) {
string mystr;
string add_string;
string string_buffer[CMD_BUFF_SIZE];
int buf_ptr_write = 0;
int buf_ptr_read = 0;
@ -522,7 +521,8 @@ int main(int argc, char **argv)
while (!_ExitFlag) {
char c = getchar();
add_string = ""; // reset string to add
string add_string; // string to add at current cursor position
bool update_prompt = true;
switch (c) {
case 127: // backslash
@ -533,7 +533,7 @@ int main(int argc, char **argv)
break;
case'\n': // user hit enter
case '\n': // user hit enter
if (buf_ptr_write == CMD_BUFF_SIZE) {
buf_ptr_write = 0;
}
@ -622,21 +622,26 @@ int main(int argc, char **argv)
default: // any other input
if (c > 3) {
add_string += c;
} else {
update_prompt = false;
}
break;
}
// reprint prompt with mystr
mystr.insert(mystr.length() - cursor_position, add_string);
printf("%c[2K", 27);
cout << (char)13;
print_prompt();
cout << mystr;
if (update_prompt) {
// reprint prompt with mystr
mystr.insert(mystr.length() - cursor_position, add_string);
printf("%c[2K", 27);
cout << (char)13;
print_prompt();
cout << mystr;
// Move the cursor to its position
if (cursor_position > 0) {
printf("\033[%dD", cursor_position);
// Move the cursor to its position
if (cursor_position > 0) {
printf("\033[%dD", cursor_position);
}
}
}