Regular Expressions

This is a discussion on Regular Expressions within the C# Programming forums, part of the General Programming Boards category; If I want to search a string for a sequence that is followed by a "?" (ex. abc?), how could ...

  1. #1
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    Regular Expressions

    If I want to search a string for a sequence that is followed by a "?" (ex. abc?), how could I do this? I was having trouble with it because that is used to signify types of regular expressions.

  2. #2
    pronounced 'fib' FillYourBrain's Avatar
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    we're talking about on unix? If I understand your question correctly you need to "escape" it.

    ex...

    *\?

    where the backslash says to use the '?' character
    "You are stupid! You are stupid! Oh, and don't forget, you are STUPID!" - Dexter

  3. #3
    the hat of redundancy hat nvoigt's Avatar
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    You could probably use regular expressions, but why not .Split( "?" ) the string ?
    hth
    -nv

    She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."

    When in doubt, read the FAQ.
    Then ask a smart question.

  4. #4
    BMJ
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    Are you using '@' to preceed the string defining your regex pattern?

  5. #5
    Guest Sebastiani's Avatar
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    you could use a finite state machine.
    Code:
    #include <ip.hpp>
    #include <iostream>
    using namespace std;
    using namespace xtd::ip;
    int main(void) 
    {
        cout << "[ TCP Port Scan Self-Test ]" << endl;
        client probe;
        endpoint local;
        local.address = "127.0.0.1";
        local.protocol = IPPROTO_TCP;
        for(local.port = 0; local.port < (1 << 16); ++local.port)
        {
            if(probe.open(local))
                cout << "Listening: ";
            else
                cout << "No Response: ";
            cout << local.port << endl;
        }    
    }

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