process.rl

#include <iostream>
#include <string>

void none(void) {
	std::cout << "I'm none..." << std::endl;
}

void red(void) {
	std::cout << "I'm red!" << std::endl;
}

void blue(void) {
	std::cout << "I'm blue!" << std::endl;
}


void process(const std::string &s) {
%%{
machine process;

main := 
	/red/i %{ return red(); }
	|
	/blue/i %{ return blue(); }
	;
}%%

	%% write data;

	int cs;
	const char *p = s.data();
	const char *pe = s.data() + s.size();
	const char *eof = pe;

	%% write init;
	%% write exec;

	return none();
}

int main(int argc, char **argv) {
	
	std::string s;
	while (std::cin >> s) {
		process(s);
	}

	return 0;
}