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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
// TODO: replace 'WordProperties' with regex/glob expressions
// ex: '/give [0-9]* [_0-9a-zA-Z]+'
// or even create a domain specific language
// ex: '/give <ammount> {unitname} <team-ID>'
// user-input: '/give 10 armcom 1'
#include "WordCompletion.h"
#include "System/Log/ILog.h"
#include "System/SafeUtil.h"
#include <stdexcept>
#include <algorithm>
CWordCompletion* CWordCompletion::singleton = NULL;
void CWordCompletion::CreateInstance() {
if (singleton == NULL) {
singleton = new CWordCompletion();
} else {
throw std::logic_error("WordCompletion singleton is already initialized");
}
}
void CWordCompletion::DestroyInstance() {
if (singleton != NULL) {
spring::SafeDelete(singleton);
} else {
throw std::logic_error("WordCompletion singleton was not initialized or is already destroyed");
}
}
CWordCompletion::CWordCompletion()
{
Reset();
}
void CWordCompletion::Reset()
{
words.clear();
WordProperties sl(true, false, false);
// key bindings (Game/UI/KeyBindings.cpp)
words["/bind "] = sl;
words["/unbind "] = sl;
words["/unbindall "] = sl;
words["/unbindaction "] = sl;
words["/unbindkeyset "] = sl;
words["/keyload "] = sl;
words["/keyreload "] = sl;
words["/keysave "] = sl;
words["/keysyms "] = sl;
words["/keycodes "] = sl;
words["/keyprint "] = sl;
words["/keydebug "] = sl;
words["/fakemeta "] = sl;
// camera handler (Game/CameraHandler.cpp)
words["/viewtaflip "] = sl;
// mini-map (Game/UI/MiniMap.cpp)
WordProperties mm(false, false, true);
words["fullproxy "] = mm;
words["drawcommands "] = mm;
words["drawprojectiles "] = mm;
words["icons "] = mm;
words["unitexp "] = mm;
words["unitsize "] = mm;
words["simplecolors "] = mm;
words["geometry "] = mm;
words["minimize "] = mm;
words["maximize "] = mm;
words["maxspect "] = mm;
// remote commands (Game/GameServer.cpp)
// TODO those commans are registered in Console, get the list from there
// This is best done with a new command class (eg. ConsoleCommand)
// deprecated idea, use *ActionExecutor's instead
words["/atm"] = sl;
words["/devlua "] = sl;
words["/editdefs "] = sl;
words["/give "] = sl;
words["/luagaia "] = sl;
words["/luarules "] = sl;
words["/nocost"] = sl;
words["/nospectatorchat "] = sl;
words["/reloadcob "] = sl;
words["/reloadcegs "] = sl;
words["/save "] = sl;
words["/skip "] = sl;
words["/skip +"] = sl;
words["/skip f"] = sl;
words["/skip f+"] = sl;
words["/spectator "] = sl;
words["/take "] = sl;
words["/team "] = sl;
words["/cheat "] = sl;
words["/nohelp "] = sl;
words["/nopause "] = sl;
words["/setmaxspeed "] = sl;
words["/setminspeed "] = sl;
words["/kick "] = sl;
words["/kickbynum "] = sl;
words["/mute "] = sl;
words["/mutebynum "] = sl;
}
void CWordCompletion::AddWord(const std::string& word, bool startOfLine,
bool unitName, bool miniMap)
{
if (!word.empty()) {
if (words.find(word) != words.end()) {
LOG_SL("WordCompletion", L_DEBUG,
"Tried to add already present word: %s", word.c_str());
return;
}
words[word] = WordProperties(startOfLine, unitName, miniMap);
}
}
void CWordCompletion::RemoveWord(const std::string& word)
{
words.erase(word);
}
std::vector<std::string> CWordCompletion::Complete(std::string& msg) const
{
std::vector<std::string> partials;
const bool unitName = (msg.find("/give ") == 0);
const bool miniMap = (msg.find("/minimap ") == 0);
// strip "a:" and "s:" prefixes
std::string prefix, rawmsg;
if ((msg.find_first_of("aAsS") == 0) && (msg[1] == ':')) {
prefix = msg.substr(0, 2);
rawmsg = msg.substr(2);
} else {
rawmsg = msg;
}
// the word fragment
std::string::size_type startPos = rawmsg.find_last_of(' ');
const bool startOfLine = (startPos == std::string::npos);
startPos = startOfLine ? 0 : startPos + 1;
const std::string fragment(rawmsg, startPos, std::string::npos);
if (fragment.empty()) {
return partials;
}
const std::string::size_type fragLen = fragment.size();
// pick a decent spot to start scanning
std::map<std::string, WordProperties>::const_iterator start;
start = words.lower_bound(fragment);
// make a list of valid possible matches
std::map<std::string, WordProperties>::const_iterator it;
for (it = start; it != words.end(); ++it) {
const int cmp = it->first.compare(0, fragLen, fragment);
if (cmp < 0) continue;
if (cmp > 0) break;
if ((!it->second.startOfLine || startOfLine) &&
(!it->second.unitName || unitName) &&
(!it->second.miniMap || miniMap)) {
partials.push_back(it->first);
}
}
if (partials.empty()) {
return partials; // no possible matches
}
if (partials.size() == 1) {
msg = prefix + rawmsg.substr(0, startPos) + partials[0];
partials.clear();
return partials; // single match
}
// add as much of the match as possible
const std::string& firstStr = partials[0];
const std::string& lastStr = partials[partials.size() - 1];
unsigned int i = 0;
unsigned int least = std::min(firstStr.size(), lastStr.size());
for (i = 0; i < least; i++) {
if (firstStr[i] != lastStr[i]) {
break;
}
}
msg = prefix + rawmsg.substr(0, startPos) + partials[0].substr(0, i);
return partials;
}
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