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tg_cli: ignore Terminal input sequences.

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This commit is contained in:
levlam 2023-04-27 14:13:32 +03:00
parent 288895d984
commit b9d431ccac
1 changed files with 29 additions and 1 deletions
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30
td/telegram/cli.cpp
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@ -2031,7 +2031,35 @@ class CliClient final : public Actor {
}
void on_cmd(string cmd) {
// TODO: need to remove https://en.wikipedia.org/wiki/ANSI_escape_code from cmd
for (size_t i = 0; i < cmd.size();) {
// https://en.wikipedia.org/wiki/ANSI_escape_code#Terminal_input_sequences
if (cmd[i] == 27 && cmd[i + 1] == '[') {
// likely an ANSI escape code
int j = i + 2;
if ('1' <= cmd[j] && cmd[j] <= '9') {
while ('0' <= cmd[j] && cmd[j] <= '9') {
j++;
}
}
if ('A' <= cmd[j] && cmd[j] <= 'Z') {
// xterm sequence
cmd = cmd.substr(0, i) + cmd.substr(j + 1);
continue;
}
if (cmd[j] == ';' && '1' <= cmd[j + 1] && cmd[j + 1] <= '9') {
j += 2;
while ('0' <= cmd[j] && cmd[j] <= '9') {
j++;
}
}
if (cmd[j] == '~') {
// vt sequence
cmd = cmd.substr(0, i) + cmd.substr(j + 1);
continue;
}
}
i++;
}
td::remove_if(cmd, [](unsigned char c) { return c < 32; });
LOG(INFO) << "CMD:[" << cmd << "]";