Hello,
I'm trying to get a string from a thing that is inside quotes as you can see here, but when i try to compile i got this errors:

ubuntu@eeepc:~/C++/Tree$ g++ -o tree tree.cpp
tree.cpp: In function ‘int main(int, char**)’:
tree.cpp:65: error: ‘get’ was not declared in this scope
tree.cpp:65: error: expected ‘,’ or ‘;’ before ‘file’
tree.cpp:66: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:66: error: ‘copy_input’ was not declared in this scope
tree.cpp:67: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:69: error: ‘struct std::string’ has no member named ‘substring’
tree.cpp:70: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:71: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:73: error: ‘struct std::string’ has no member named ‘substring’
ubuntu@eeepc:~/C++/Tree$

And here is the code of my program:

#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <stdlib.h>
#include <stdio.h>
using namespace std;
int main( int argc, char* argv[] )
{
    // Error Messages
    string extension = argv[ 1 ];
    
    if(argc != 2)
    {
       cout << "Error syntax is incorrect!\nSyntax: " << argv[ 0 ] << " <file>\n";
      return 0;
    }
    if(extension[extension.length()-3] != '.')
    {
       cout << "Extension not valid!" << endl;
       cout << "Default extension *.tr" << endl;
      return 0;
    }
    if(extension[extension.length()-2] != 't')
    {
       cout << "Extension not valid!" << endl;
       cout << "Default extension *.tr" << endl;
      return 0;
    }
    if(extension[extension.length()-1] != 'r')
    {
       cout << "Extension not valid!" << endl;
       cout << "Default extension *.tr" << endl;
      return 0;
    }
    // End of the error messages
    
    ifstream file(argv[ 1 ]);
    if (!file.good()) {
       cout << "File " << argv[ 1 ] << " does not exist.\n";
      return 0;
    }
    
    string linha;
    while (!file.eof())
    {
    getline(file, linha);
    if (linha.find("print") != string::npos)
        {
           size_t idx = linha.find("\""); //find the first quote on the line
           while ( idx != string::npos )
              {
                 size_t idx_end = linha.find("\"",idx+1); //end of quote
                 string quotes;
                 
                 quotes.assign(linha,idx,idx_end-idx+1);
                 // do not print the start and end " strings
                 cout << quotes.substr(1,quotes.length()-2) << endl;
                 //check for another quote on the same line
                 idx = linha.find("\"",idx_end+1);
              }
       }
    if (linha.find("copy_input") != string::npos)
       {
          string file = get file;
          int start = file.indexOf(copy_input);
          int end = file.indexOf("\n", start);

          string line = file.substring(start, end);
          int quoteStart = line.indexOf("\"");
          int quoteEnd = line.indexOf("\"", quoteStart);

          string quotes = line.substring(quoteStart, quoteEnd);

          cout << quotes << endl;
       }
    }
  return 0;
}

What i'm doing wrong?

Thanks,
Nathan Paulino Campos

Hello,
I'm trying to get a string from a thing that is inside quotes as you can see here, but when i try to compile i got this errors:

ubuntu@eeepc:~/C++/Tree$ g++ -o tree tree.cpp
tree.cpp: In function ‘int main(int, char**)’:
tree.cpp:65: error: ‘get’ was not declared in this scope
tree.cpp:65: error: expected ‘,’ or ‘;’ before ‘file’
tree.cpp:66: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:66: error: ‘copy_input’ was not declared in this scope
tree.cpp:67: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:69: error: ‘struct std::string’ has no member named ‘substring’
tree.cpp:70: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:71: error: ‘struct std::string’ has no member named ‘indexOf’
tree.cpp:73: error: ‘struct std::string’ has no member named ‘substring’
ubuntu@eeepc:~/C++/Tree$

If it's not on this list, it's not part of the string library.

http://www.cplusplus.com/reference/string/string/

It's substr, not substring. "indexOf" does not exist in any form.

You already have an ifstream called "file" (I'd rename it. It's too easy to mix it up with FILE in my opinion), so don't declare a string with the same name in line 65. I'm not sure what you're trying to do in line 65 anyway but if you are calling a function, there needs to be quotes.

This question has already been answered. Start a new discussion instead.