main.cpp
1 #include <iostream> 2 #include <stdlib.h> 3 #include <fstream> 4 #include <string> 5 6 using namespace std; 7 8 string readLine ( const char* filepath ) { 9 ifstream file; 10 file.open ( filepath ); 11 string text; 12 if ( file.is_open() ) { 13 while ( !file.eof() ) { 14 getline ( file, text ); 15 break; 16 } 17 } 18 file.close(); 19 return text; 20 } 21 22 int main ( int argc, char* argv[] ) { 23 string opt = argv[1]; 24 if ( !opt.compare ( "-p" ) ) { 25 string text = readLine ( argv[3] ); 26 size_t found = text.find ( argv[2] ); 27 if ( found != string::npos ) { 28 cout << found << endl; 29 return 0; 30 } 31 } else if ( !opt.compare ( "-e" ) ) { 32 string text = readLine ( argv[4] ); 33 cout << text.substr ( atoi ( argv[2] ), atoi ( argv[3] ) ) << endl; 34 return 0; 35 } 36 return -1; 37 }
