Fix readline prompt when command does not output

This commit is contained in:
Jethro Grassie 2017-07-24 09:54:27 -04:00
parent ab594cfee9
commit d75cff1a0e
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@ -152,14 +152,12 @@ static int process_input()
static void handle_line(char* line) static void handle_line(char* line)
{ {
if(last_line == "exit" || last_line == "q") // This function never gets called now as we are trapping newlines.
{ // However, it still needs to be present for readline to know we are
// manually handling lines.
rl_done = 1;
return; return;
} }
std::lock_guard<std::mutex> lock(sync_mutex);
rl_set_prompt(last_prompt.c_str());
rl_already_prompted = 1;
}
static int handle_enter(int x, int y) static int handle_enter(int x, int y)
{ {
@ -167,30 +165,42 @@ static int handle_enter(int x, int y)
char* line = NULL; char* line = NULL;
line = rl_copy_text(0, rl_end); line = rl_copy_text(0, rl_end);
std::string test_line = line;
boost::trim_right(test_line);
rl_crlf(); rl_crlf();
rl_on_new_line(); rl_on_new_line();
if(test_line.empty())
{
last_line = "";
rl_set_prompt(last_prompt.c_str());
rl_replace_line("", 1);
rl_redisplay();
have_line.notify_one();
return 0;
}
rl_set_prompt(""); rl_set_prompt("");
rl_replace_line("", 1); rl_replace_line("", 1);
rl_redisplay(); rl_redisplay();
std::string test_line = line; if (!test_line.empty())
boost::trim_right(test_line);
if (test_line.length() > 0)
{ {
last_line = test_line; last_line = test_line;
add_history(test_line.c_str()); add_history(test_line.c_str());
have_line.notify_one(); history_set_pos(history_length);
} }
free(line); free(line);
if(last_line != "exit" && last_line != "q") if(last_line != "exit" && last_line != "q")
{ {
rl_set_prompt(last_prompt.c_str()); rl_set_prompt(last_prompt.c_str());
rl_on_new_line_with_prompt(); rl_replace_line("", 1);
rl_redisplay(); rl_redisplay();
} }
rl_done = 1; have_line.notify_one();
return 0; return 0;
} }
@ -236,6 +246,7 @@ static void install_line_handler()
rl_startup_hook = startup_hook; rl_startup_hook = startup_hook;
rl_attempted_completion_function = attempted_completion; rl_attempted_completion_function = attempted_completion;
rl_callback_handler_install("", handle_line); rl_callback_handler_install("", handle_line);
stifle_history(500);
} }
static void remove_line_handler() static void remove_line_handler()