Why my lexical analyzer does not recognizes Quotes "" - c++

Question

I hope someone can help me with this issues. I am creating a HTML lexical analyzer in c++. According to the teacher I am supposed to have 3 files. one header and 2 main .cpp and it should be able to read a file
This is my file try.txt
<<<<<Hello there <H1 style=”BOLD”>header!!</H1>
<<
<< =
This is my header
#ifndef tokens_h
#define tokens_h
#include <string>
#include <iostream>
enum tokens {TEXT, LANGLE = 60, RANGLE = 62, SLASH = 47, ID, EQ = 61, QSTRING = 34, OTHER, END};
/* TEXT = 0
LANGLE = 60
RANGLE = 62
SLASH = 47
ID = 48
EQ = 61
QSTRING = 34
OTHER = 36
END = 36
*/
int getToken(std::istream *br, std::string a);
#endif
This is my main.cpp
#include <iostream>
#include <fstream>
#include <vector>
#include "tokens.h"
using namespace std;
int main(int argc, char *argv[])
{
//defineTokens();
istream *br;
ifstream infile;
string output;
int a;
vector<int> count;
int langle = 0;
string line;
if(argc == 1){
while(cin.good() ){ //Get continous input
br = &cin;
getline(cin,line);
getToken(br,line);
}
}
else if(argc != 2){
return 1;
}else{
infile.open(argv[1]);
if( infile.is_open()){
br = &infile;
while(!infile.eof()){
getline(infile,output);
getToken(br,output);
}
}
else{
cout << argv[1] << "Can't Be Opened" << endl;
return 1;
}
}
}
and this is my tokens.cpp where I print the results
#include <iostream>
#include <stdio.h>
#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <map>
#include <utility>
#include "tokens.h"
using namespace std;
void compar(int ch)
{
vector<int> text;
vector<int> langle;
//string langle;
vector<int> rangle;
vector<int> slash;
vector<int> id;
vector<int> eq;
vector<int> qstring;
vector<int> other;
map <string, int> result;
int c=0;
int d=0;
int sum;
string r;
switch(ch){
case 60:static int countlangle = 0;
countlangle ++;
result["LANGLE"]= countlangle;
cout << "LANGLE: " << result["LANGLE"] << " ";
break;
case 62:static int countrangle = 0;
countrangle ++;
result["RANGLE"]= countrangle;
cout << "RANGLE: " << result["RANGLE"] << " ";
break;
case 47:static int countslash = 0;
countslash ++;
result["SLASH"]= countslash;
cout << "SLASH: " << result["SLASH"] << " ";
break;
case 61:static int counteq = 0;
counteq ++;
result["EQ"]= counteq;
cout << "EQ: " << result["EQ"] << " ";
break;
case 34:static int countqstring = 0;
countqstring ++;
result["QSTRING"]= countqstring;
cout << "QSTRING: " << result["QSTRING"] << " ";
break;
}
}
int getToken(istream *br, string a)
{
int b;
string d = "no";
string f = "no";
string r;
vector<char> st;
vector<string> trial;
vector<int> countr;
vector<int> countl;
vector<char> quotes;
string ans;
int x=0;
r = a;
cout << a[27];
int found;
found = a.find('\"');
cout << found<<"XXxxxxxX";
for(int i = 0; i< a.length();i++){ //read entire string
if(a[i] == '<'){
// cout << LANGLE << " ";
d="yes";
x +=1;
countr.push_back(LANGLE);
//cout << count.size();
//cout << x;
compar(LANGLE);
b =LANGLE;
// return LANGLE;
}
else if(a[i]== '>' && d == "yes"){
f = "yes";
b = RANGLE; //assing to the int variable the value from the enum header
compar(RANGLE);
}
else if(a[i]== '/' && d == "yes"){
compar(SLASH);
}
else if(a[i] == '=' && d == "yes"){
compar(EQ);
}
else if(a[found] == '\"' && d == "yes"){
// for(int k =0;k < quotes.size();k++)
//cout << r[found] <<"XXX";
compar(QSTRING);
}
}
return 0;
}
The program reads <>= without a problem but when I try to read a '\"' with cout << a[27];
I get this: ?
if I print cout << a;
i get <<<<<Hello there <H1 style=”BOLD”>header!!</H1> // this is the string I am trying to read
when I use found = a.find('\"'); it gives me a -1
My question is why my program cannot recognized quotes? is it the way I am reading the file?
thanks in advance

Answer 1

Your file contains:
”
whereas your lexer looks for:
"
These are distinct.