SetPars.cpp

//
// Created by tuli on 07/11/2020.
//

#include <cstdlib>
#include "SetPars.h"
SetPars::SetPars(){}
string SetPars::parseNameX(bool flag) {  // reading one name from input
    nullti();
    if (flag) cin.ignore();
    getline(cin,t);
    stringstream tip(t);  //using stringstream
    tip>>t;
    if (t.size()>8 || t.size()==0) return "0";  //testing if name legal
    for (unsigned int i=0;i<t.size();i++) { if (! isupper(t[i])) { return "0";}}
    string test;
    tip>>test; if(test.size()>0) return "0"; //testing if given more than 1 name also illegal
    return t;
}

string SetPars::parse2Name(string & nom1, string & nom2){ //reading 2 names from line updating by reference
   // cin.ignore();                                               // return value for checking purpose
    getline(cin,t);
    stringstream tip(t);
    tip>>t;
    if ( (t.size()>8) || (t.size()==0)) return "0";
    for (unsigned int i=0;i<t.size();i++) { if (! isupper(t[i]) ) { return "0"; } }  //same checks as si name
    nom1 = t;
    //cout<<t<<"this is nom1";
    tip>>t;
    if ((t.size()>8) || t.size()==0) return "0";
    for (unsigned int i=0;i<t.size();i++) { if (! isupper(t[i]) ) { return "0"; } }
    nom2 = t;
   // cout<<t<<"this is nom2";
    string test;
    tip>>test; if(test.size()>0) return "0";

    return "1";
}

int SetPars::parseSet(int *& pointy) {
    string temp;
    int tempNUM;
    int count=0;

    getline(cin,temp);
    int *arr= new int[(temp.size()/2)]; // i want this dynamical aloc, max size of legal arr
    pointy=arr; //assigning aloc to pointer

    if ((const char)temp[0]!='{') { return -1; } //initial conditions
    unsigned int i=1;
    if (temp.size()==2){
        if (temp[i]=='}'){ return 0;} else{return -1;}
    }  //empty set
    if ((!isdigit(temp[i]) && (temp[i] != '-'))) {return -1;} //must start as number
    for  (i=1;i<temp.size()-1;i++){ //parsing set string
            string tempINT;
            int j=0; //max digits in int
                while(temp[i]!=' ' && i<temp.size()-1) { //break tokenizing loop if ' '
                    if (isdigit(temp[i])){
                        tempINT += temp[i++];
                             if ((++j)>9) { return -1; } //max digits in int
                     }
                    else if ((j==0) && (temp[i]=='-'))  { tempINT += temp[i++];}
                    else { return -1; } //illegal input
                }
            stringstream tip(tempINT);
            tip>>tempNUM;
            *arr=tempNUM;
            arr++; count++;
            }

        if (temp[i-1]!='}') { return -1;}
        arr -= count; return count;
    }