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int main()

{

    boost::regex re("<(.*)>[ ]+(\\S+)=(\\S+)[ ]+(\\S+)=(\\S+)[ ]+(\\S+)=(\\S+)[ ]+(\\S+)=(\\S+)[ ]+(\\S+)=(.*)");

    boost::cmatch cm;

    string s = "<test 1> ip=192.168.1.2 user=oracle every_sec=1 time=00:00:00 cmd=free -m ";

    if(boost::regex_match(s.c_str(), cm, re))

    {

        cout << "matched string: '" << cm[0] << "'" << endl;

        cout << cm.size()-1 << " part matched" << endl;

        for(int i=1; i<cm.size(); i++) cout << "|"<<cm[i]<<"|" << endl;

    }

    return 0;

}

输出

[root@server2 test]# ./a

matched string: '<test 1> ip=192.168.1.2 user=oracle every_sec=1 time=00:00:00 cmd=free -m '

11 part matched

|test 1|

|ip|

|192.168.1.2|

|user|

|oracle|

|every_sec|

|1|

|time|

|00:00:00|

|cmd|

|free -m |

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