Adding items to lists in C++ assignment help

Updating Lists in C++

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
using namespace std;
bool valid_key(string key) {
return isalpha(key[0]);
}
string trimFromBackslashR(string &str) {
string s= str;
if (s.empty())
return "";
int i = 0;
while (s[i] == '\r')
i++;
int j = s.size() - 1;
while (s[j] == '\r')
j--;
s = s.substr(i, j - i + 1);
return s;
}
void printMap(map &m, int max, vector &keys_order,bool &first) {
max++;
if(m.size()!=0 && !first){
cout << endl;
}
first = false;
for (int i = 0; i < static_cast(keys_order.size()); i++) {
cout << keys_order[i];
for (int j = 0; j < max - static_cast(keys_order[i].size()); j++)
cout << " ";
cout << m[keys_order[i]] << endl;
}
}
int addKeyValue(map &m, string& k, string& v, int &key_max_size, vector &keys_order,set keys) {
if (!valid_key(k)) {
// not alphabetic key
return -1;
}
if (m.find(k) != m.end()) {
// duplicate keys
return -2;
}
if (keys.find(k) == keys.end()) {
// not found keys
return -3;
}
key_max_size = max(key_max_size, static_cast(k.size()));
m[k] = trimFromBackslashR(v);
keys_order.push_back(k);
return 0;
}
void printError(int res, bool fromCin, char*progName, char*filename,vector&keyValueVector,int lineNumber) {
switch (res)
{
case -1:
cerr << progName << " has encountered an error " + ((fromCin) ? "" : "in file " + string(filename) + " ") + ": key is not alphabetic {" << keyValueVector[0] << "}" << endl;
break;
case -2:
cerr << progName << " has encountered an error " + ((fromCin) ? "" : "in file " + string(filename) + " ") + ": duplicate key found in line " << lineNumber << endl;
break;
case -3:
cerr << progName << " has encountered an error " + ((fromCin) ? "" : "in file " + string(filename) + " ") + ": key is not found in the key list in line " << lineNumber << endl;
break;
}
}
void trim(string &s) {
if (s.empty())
return;
int i = 0;
while (s[i] == ' ' || s[i] == '\r' || s[i] == '\t')
i++;
int j = s.size() - 1;
while (s[j] == ' ' || s[j] == '\r' || s[j] == '\t')
j--;
s = s.substr(i, j - i + 1);
}
void split(string& s, vector&v) {
if (s.empty())
return;
string trimmedString = s;
trim(trimmedString);
if(trimmedString.empty()){
return;
}
int index = s.find(" ");
int index2 = index;
if (index == -1) {
v.push_back(s);
return;
}
else {
while (s[index2 + 1] == ' ') index2++;
if(!s.substr(0, index).empty())
v.push_back(s.substr(0, index));
if (!s.substr(index2+1).empty())
v.push_back(s.substr(index2 + 1));
}
}
int initKeys(ifstream &in,set&keys) {
string x;
while (in >> x) {
trim(x);
if (!valid_key(x)) {
return -1;
}
keys.insert(x);
}
return 0;
}
void trimLeft(string &s) {
if (s.empty())
return;
int i = 0;
while (s[i] == ' ' || s[i] == '\r' || s[i] == '\t')
i++;
s = s.substr(i);
}
inline bool exists_test0(const std::string& name) {
ifstream f(name.c_str());
return f.good();
}
int main(int argc,char*argv[]) {
bool first =true;
if(argc < 2){
cerr << argv[0] << " has encountered an error: usage ./hw1 idsFile [input files]"<fstreams;
string line;
setkeys;
vectorkeyValueVector;
mapkeyValue;
int maxKeyLength = -1;
vectorkeyOrder;
int res;
int lineNumber = 0;
bool read = false;
bool fromCin = true;
/*initialize the streams*/
if (argc != 2) {
fromCin = false;
for (int i = 2; i < argc; i++) {
ifstream *tempf = new ifstream();
(*tempf).open(argv[i]);
if (!(*tempf)) {
cerr << argv[0] << " has encountered an error "+((fromCin)?"":"in file "+string(argv[i])+" ")+": file \""<(fstreams.size())); i++) {
while(read || getline((fromCin) ? cin:*fstreams[i], line)) {
if (read) read = false;
lineNumber++;
if (line[0] == ' ' || line[0] == '\t') {
// continues line
trimLeft(line);
if (line.empty()) {
continue;
}
if (keyValue.find(keyValueVector[0]) != keyValue.end()){
keyValue[keyValueVector[0]].append(" " + trimFromBackslashR(line));
}
else {
res = addKeyValue(keyValue, keyValueVector[0], line, maxKeyLength, keyOrder, keys);
printError(res,fromCin,argv[0],argv[2+i],keyValueVector,lineNumber);
if (res != 0) {
return -1;
}
}
}
else {
keyValueVector.clear();
split(line, keyValueVector);
if (keyValueVector.size() == 0) {
// new enemy
printMap(keyValue,maxKeyLength,keyOrder,first);
keyValue.clear();
maxKeyLength = -1;
keyOrder.clear();
continue;
}
else if (keyValueVector.size() != 2) {
// invalid input
// may be a continious line
read = true;
if (!getline((fromCin) ? cin : *fstreams[i], line) || (line[0] != ' ' && line[0] != '\t'))
{
cerr << argv[0] << " has encountered an error " + ((fromCin) ? "" : "in file " + string(argv[2 + i]) + " ") + ": key or value is missing in line " << lineNumber << endl;
return -1;
}
else{
continue;
}
}
if ((res = addKeyValue(keyValue, keyValueVector[0], keyValueVector[1], maxKeyLength, keyOrder,keys)) != 0) {
 printError(res,fromCin,argv[0],argv[2+i],keyValueVector,lineNumber);
return -1;
}
}
}
// end of file and an enemy
printMap(keyValue, maxKeyLength, keyOrder,first);
keyValue.clear();
maxKeyLength = -1;
keyOrder.clear();
lineNumber = 0;
if (fromCin)
break;
}
return 0;
}
Updating Batman’s List of Foes in C++ Homework Help

Updating Lists in C++
