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history support in prompt

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This commit is contained in:
Maxime Coste 2012-01-25 22:32:17 +00:00
parent 14d17a4493
commit 589b8e68bb
1 changed files with 40 additions and 6 deletions
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46
src/main.cc
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@ -218,29 +218,63 @@ std::string ncurses_prompt(const std::string& text, Completer completer = comple
addstr(text.c_str());
clrtoeol();
std::string result;
size_t cursor_pos = 0;
Completions completions;
int current_completion = -1;
std::string text_before_completion;
std::string result;
std::string saved_result;
static std::unordered_map<std::string, std::vector<std::string>> history_per_prompt;
std::vector<std::string>& history = history_per_prompt[text];
auto history_it = history.end();
while (true)
{
char c = getch();
int c = getch();
switch (c)
{
case '\r':
{
std::vector<std::string>::iterator it;
while ((it = find(history, result)) != history.end())
history.erase(it);
history.push_back(result);
return result;
case 4:
}
case KEY_UP:
if (history_it != history.begin())
{
if (history_it == history.end())
saved_result = result;
--history_it;
result = *history_it;
cursor_pos = result.length();
}
break;
case KEY_DOWN:
if (history_it != history.end())
{
++history_it;
if (history_it != history.end())
result = *history_it;
else
result = saved_result;
cursor_pos = result.length();
}
break;
case KEY_LEFT:
if (cursor_pos > 0)
--cursor_pos;
break;
case 5:
case KEY_RIGHT:
if (cursor_pos < result.length())
++cursor_pos;
break;
case 7:
case KEY_BACKSPACE:
if (cursor_pos != 0)
{
result = result.substr(0, cursor_pos - 1)
@ -288,7 +322,7 @@ std::string ncurses_prompt(const std::string& text, Completer completer = comple
}
default:
current_completion = -1;
result = result.substr(0, cursor_pos) + c + result.substr(cursor_pos, std::string::npos);
result = result.substr(0, cursor_pos) + (char)c + result.substr(cursor_pos, std::string::npos);
++cursor_pos;
}