test your samples in v8 (google javascript engine in c++)

643 scons sample=process
644 scons sample=count-hosts
645 scons sample=lineprocesor
646 scons -h
647 scons -h | grep sample
648 scons sample=lneprocessor
649 scons sample=lineprocessor
650 ls
651 ./process
652 vi test.js
653 ./process test.js
654 lineprocessor
655 ./lineprocessor
656 vi test.js
657 ./lineprocessor test.js
658 process test.js
659 vi test2.js
660 process test2.js
661 ./lineprocessor test2.js
662 ./lineprocessor --main-cycle-in-js test2.js

$ cat test.js
function ProcessLine(input_line) {
return ">>>" + input_line + "<<<";
}

$ cat test2.js
while (true) {
var line = read_line();
if (!line) {
break;
}
var res = line + " | " + line;
print(res);
}