File Read & Write

[DEhqDjzh]

Hello, To Improve my C++ skills (and some boredom), I've decided to create my mini programming language. It will read a string from a file and react as the context of the string. Here
is my question

- How to read a string in specific characters and give an error if they are missing. e.g:

if(readed_string == "print")
{
// here how to check if there are () or not.
if(have_())
{
// how to read text within "" ?
}

}

[jonnin]

you can use find() or just pure iteration. find is nicer looking maybe but you iterate the string twice instead of once.

bool bad = false;
for(... rs.length)
{
  if(rs[i] == '(' || rs[i] == ')') 
   {
     bad = true;  
     break;
   }
}

[tibrado]

Here is another way if you are interested. {auto}.
https://en.cppreference.com/w/cpp/language/range-for

#include <iostream>
using namespace std;

int main() {
	string a = "lost (of) stuff"; 

	for (auto i : a) {
		if (i == '(' || i == ')')
			continue; 
		cout << i << endl; 
	}

	system("pause"); 
}

[DEhqDjzh]

@tibrado Thanks !