grep.cpp

   1 /* $Id$ */
   2 #include <iostream>
   3 #include <string>
   4 #include "regex.h"
   5
   6 using namespace std;
   7 using namespace Msp;
   8
   9 int main(int argc, char **argv)
  10 {
  11         if(argc<2)
  12         {
  13                 cerr<<"Usage: "<<argv[0]<<" <regex>\n";
  14                 return 1;
  15         }
  16
  17         Regex regex(argv[1]);
  18         cout<<regex.disassemble();
  19         string line;
  20         while(getline(cin, line))
  21         {
  22                 if(RegMatch match=regex.match(line))
  23                 {
  24                         cout<<line<<'\n';
  25                 }
  26         }
  27
  28         return 0;
  29 }