File size: 1,284 Bytes
d1be154 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | #include <ot/shell/shell.hpp>
namespace ot {
// Constructor
Shell::Shell(const std::string& w, FILE* is, std::ostream& os, std::ostream& es) :
_os {os},
_es {es},
_prompt {w, "ot> ", ot::user_home() / ".ot_history", is, os, es} {
// Add auto-complete
for(const auto& kvp : _handles) {
_prompt.autocomplete(kvp.first);
}
_prompt.autocomplete("quit");
_prompt.autocomplete("exit");
}
// Operator: ()
void Shell::operator()() {
bool quit {false};
while(!quit && _prompt.readline(_line)) {
// Remove the comment
if(auto cpos = _line.find('#'); cpos != std::string::npos) {
_line.erase(cpos);
}
_op.clear();
_is.clear();
_is.str(_line);
_is >> _op;
// Nothing to do with empty line
if(_op.empty()) {
}
// leave
else if(_op == "quit" || _op == "exit") {
quit = true;
}
// built-in command
else if(auto itr = _handles.find(_op); itr != _handles.end()) {
(this->*(itr->second))();
}
// undefined command
else {
_es << "undefined command: " << std::quoted(_line) << '\n';
}
// flush
_os.flush();
_es.flush();
}
}
}; // end of namespace ot. -----------------------------------------------------------------------
|