Thread: search text from file

Hello,
Is there a way to search a vector and return all occurrences of a string. I have read a text file into a vector and want to search throught the vector. For example I am searching the vector for all occurrences with the word ssh. It may be ssh, or it may be ssh [email protected]. I am not sure if this requires a regexp or some other step to return all occurrences of ssh.
Thanks for your time,
Brad

the vector is a vector of strings. I used this to populate it:

Code:

while (getline(infile, line))
  {
    file.push_back (line);
  }

Thanks for the response.

I tried using find but it only returns ssh. So if there were 10 occurences of of the word "ssh", they are not all just ssh. Some are ssh [email protected]. I am trying to return all strings that contain ssh, not just the ones that just have ssh. I thought maybe use an iterator and increment each pass, but it still will only look for ssh, no other variant of it.
Thanks for the reply.

So, you are after finding <nothing|separator>ssh<nothing|separator>, rather than "any string that contains ssh

I guess I should have worded it better. The string will always start with ssh, whether it is just ssh or ssh [email protected]. So in crude regexp format:

Code:

^ssh*

thanks again

Am I missing something? Wouldn't

Code:

if (1 == str.find("ssh", 1))
{
    cout << "Found it" << endl;
}

work?

This is what I have so far.

Code:

#include <iostream>
#include <fstream>
#include <vector>
#include <string>


using namespace std;

int main(int argc, char** argv)
{
	vector<string> phrase;
	ifstream iFile(".bash_history");
	string temp;
    if (! iFile)
    {
        cout << "Error opening input file" << endl;
        return -1;
    }
    while (getline(iFile,temp)) {
    	phrase.push_back(temp);
    }
        
    for (int i = 0; i < phrase.size(); i++) {
    	if (1 == phrase.at(i).find("ssh", 1)){
    		cout << "Found it: " << phrase.at(i) << endl;
    		
        }
       
    }
    
	return 0;
}

Hmmm. Where 0 was search all from the doc I read, I figured string must be using 1 for start position, but apparently not. This seems to find all string starting with ssh:

Code:

if (0 == str.find("ssh"))
{
    cout << "Found it" << endl;
}

I got it to work doing this, not sure if this is the best way or not?

Code:

for (int i = 0; i < phrase.size(); i++) {
    	found = phrase.at(i).find("ssh",0);
        if (found != string::npos) {
        	results.assign(phrase.at(i), found, phrase.at(i).size());
    		cout << results << endl;
    	}
        
    }

This prints out al the lines containing ssh in the first of the string. Is this way ok? Or would you suggest a better way? Also do you know why c++ does not have a regexp lib?