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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_p8jcdl4qf4gljge6ada70rmlbr, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
!7

concept Rule {
  CtxRule1 source;
  Explain explain;
}

p {
  L<CtxRule1> rules = ctxFindRules(#1200000);
  print("Found " + n(rules, "rules"));
  for (CtxRule1 rule : rules) {
    Explain e = explain(rule.text(), ctxParsingRules(), "rule");
    if (e == null)
      print("Bad rule: " + rule.text());
    else {
      cnew(Rule, source := rule, explain := e);
    }
  }
  evalRulesOnString("wie geht es dir");
  botSleep();
}

sS answer(S s) {
  ret evalRulesOnString(s);
}

static S evalRulesOnString(S s) {
  for (Rule rule) {
    if (eval(rule.explain, s))
      print("Fire! " + rule.source.file);
  }
  ret "";
}

static bool eval(Explain e, S input) {
  Explain exp = e.find("exp");
  if (exp == null) todo(e.className());
  if (exp.has("bracket"))
    ret eval(exp.sub(0));
  if (exp.has("and"))
    ret eval(exp.sub(0), input) && eval(exp.sub(1), input);
  if (exp.has("or"))
    ret eval(exp.sub(0), input) || eval(exp.sub(1), input);
  if (exp.has("quoted")) {
    print("Eval quoted: " + exp);
    true;
  }
  throw todo(e.className());
}