void eval(vector<unsigned>& buffer, const string& expression_) {
string expression = expression_;
bool function = false;
for(auto& c : expression) {
if(c == '(') function = true;
if(c == ')') function = false;
if(c == ',' && function == true) c = ';';
}
lstring list = expression.split(",");
for(auto& item : list) {
item.strip();
if(item.match("f(?*) ?*")) {
item.ltrim("f(", 1L);
lstring part = item.split(") ", 1L);
lstring args = part[0].split(";", 3L).strip();
unsigned length = eval(args(0, "0"));
unsigned offset = eval(args(1, "0"));
unsigned stride = eval(args(2, "0"));
if(args.size() < 2) offset = buffer.size();
if(args.size() < 3) stride = 1;
for(unsigned n = 0; n < length; n++) {
string fn = part[1];
fn.replace("n", string{n});
fn.replace("o", string{offset});
fn.replace("p", string{buffer.size()});
buffer.resize(offset + 1);
buffer[offset] = eval(fn);
offset += stride;
}
} else if(item.match("base64*")) {
unsigned offset = 0;
item.ltrim("base64", 1L);
if(item.match("(?*) *")) {
item.ltrim("(", 1L);
lstring part = item.split(") ", 1L);
offset = eval(part[0]);
item = part(1, "");
}
item.strip();
for(auto& c : item) {
if(c >= 'A' && c <= 'Z') buffer.append(offset + c - 'A' + 0);
if(c >= 'a' && c <= 'z') buffer.append(offset + c - 'a' + 26);
if(c >= '0' && c <= '9') buffer.append(offset + c - '0' + 52);
if(c == '-') buffer.append(offset + 62);
if(c == '_') buffer.append(offset + 63);
}
} else if(item.match("file *")) {
item.ltrim("file ", 1L);
item.strip();
//...
} else if(item.empty() == false) {
buffer.append(eval(item));
}
}
}
void dfs(string start, string &end, unordered_set<string> &dict,
int curL, int minL,
vector<string> &vis, vector<string> &ret){
if(curL > minL)
return;
int len = dict.begin()->size();
for(int i = 0; i < len; i++){
string v = start;
char oldc = start[i];
for(char c = 'a'; c <= 'z'; c++){
if(c == oldc)
continue;
v[i] = c;
if(v == end){
vis.push_back(v);
ret.append(vis);
vis.pop_back();
return;
}
if(dict.find(v) == dict.end())
continue;
vis.push_back(v);
dfs(v, end, dict, curL+1, minL, vis, ret);
vis.pop_back();
}
}
}
template<typename T> void append(T& data, const string& name, const string& desc = "") {
Node node;
node.assign(data);
node.name = name;
node.desc = desc;
children.append(node);
}
void poll(vector<HID::Device*>& devices) {
char state[32];
XQueryKeymap(display, state);
for(unsigned n = 0; n < keys.size(); n++) {
bool value = state[keys[n].keycode >> 3] & (1 << (keys[n].keycode & 7));
assign(n, value);
}
devices.append(&hid);
}
void append(matrix const& other) {
A.append(other.A);
b.append(other.b);
}
