int main (int argc, const char* argv[]) {
OptionParser parser;
parser.description("split input file by odd lines and even lines into two files\n"
"input from stdin, output odd lines to stdout, even lines to stderr")
.usage("%prog [OPTIONS] < INPUT > ODD_LINES 2> EVEN_LINES")
.version("1.0")
.epilog("By jadesoul @ 2013-11-19 14:47:14\n"
"please report bugs to " JADESOUL_EMAIL);
parser.add_option("-v", "--verbose")
.action("store_true")
.dest("verbose")
.set_default("0")
.help("print status messages to stdlog");
OptionArgs& optargs = parser.parse_args(argc, argv);
bool verbose=optargs.get("verbose");
if (verbose) cout<<"begin ..."<<endl;
uint i=0;
string s;
while (getline(cin, s))
if (++i%2==1) cout<<s<<endl;
else cerr<<s<<endl;
if (verbose) cout<<"finished"<<endl;
return 0;
}
